首页 > 最新文献

Mining Technology-Transactions of the Institutions of Mining and Metallurgy最新文献

英文 中文
Life-of-mine optimization for integrated open stope development and production scheduling using a mixed-integer linear programming framework 基于混合整数线性规划框架的露天采场综合开发与生产调度优化
IF 1.1 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-03-09 DOI: 10.1080/25726668.2023.2182285
E. J. A. Appianing, E. Ben-Awuah, Y. Pourrahimian
ABSTRACT Extraction and development sequences must be scheduled strategically in order to maximize the life of mine. The complexities and computational difficulties associated with underground mine planning makes it challenging and open to further research. This paper presents a mathematical programming framework based on mixed-integer linear programming (MILP) formulation for integrated open stope development and production scheduling. Additionally, the MILP model incorporates backfilling, operational levels control, and stope extraction duration control during production scheduling. The MILP model generated a net present value of $244.7 M and determined the capital, ventilation, operational, and ore pass development schedules as well as mining and processing schedules for a gold project with 25 years mine life. A total of 2.48 Mt of material was extracted and processed out of 2.88 Mt mineralized material.
摘要为了使矿山的寿命最大化,必须对开采开发顺序进行战略规划。地下矿山规划的复杂性和计算难度使其具有挑战性和进一步研究的开放性。提出了一种基于混合整数线性规划(MILP)的露天采场综合开发与生产调度数学规划框架。此外,MILP模型还在生产计划中集成了充填、作业水平控制和采场开采时间控制。MILP模型产生了2.447亿美元的净现值,并确定了具有25年矿山寿命的黄金项目的资本,通风,操作和矿石通道开发时间表以及采矿和加工时间表。矿化物料2.88 Mt,共提取加工物料2.48 Mt。
{"title":"Life-of-mine optimization for integrated open stope development and production scheduling using a mixed-integer linear programming framework","authors":"E. J. A. Appianing, E. Ben-Awuah, Y. Pourrahimian","doi":"10.1080/25726668.2023.2182285","DOIUrl":"https://doi.org/10.1080/25726668.2023.2182285","url":null,"abstract":"ABSTRACT Extraction and development sequences must be scheduled strategically in order to maximize the life of mine. The complexities and computational difficulties associated with underground mine planning makes it challenging and open to further research. This paper presents a mathematical programming framework based on mixed-integer linear programming (MILP) formulation for integrated open stope development and production scheduling. Additionally, the MILP model incorporates backfilling, operational levels control, and stope extraction duration control during production scheduling. The MILP model generated a net present value of $244.7 M and determined the capital, ventilation, operational, and ore pass development schedules as well as mining and processing schedules for a gold project with 25 years mine life. A total of 2.48 Mt of material was extracted and processed out of 2.88 Mt mineralized material.","PeriodicalId":44166,"journal":{"name":"Mining Technology-Transactions of the Institutions of Mining and Metallurgy","volume":"29 1","pages":"106 - 120"},"PeriodicalIF":1.1,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84162112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Geotechnical analysis of blasting sequence and resulting shapes of drawbells in block cave mines 块状溶洞矿山爆破顺序及吊钟形状的岩土分析
IF 1.1 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-03-09 DOI: 10.1080/25726668.2023.2185383
Nadia Bustos, E. Villaescusa, I. Onederra
ABSTRACT Drawbells allow disassembled ore to be extracted from the production levels in block cave mines. As part of the construction process, blast damage must be minimised, enabling the remaining rock mass surrounding the drawbell to sustain the induced stress during the different stages of a block-caving operation for a successful mine plan extraction and ore recovery.This paper proposes two approaches for the geotechnical evaluation of drawbell blast performance. Initially, the expected dynamic burden is calculated along the length of the blasthole and used to assess surveyed blast holes. Secondly, the design compliance is evaluated using the Radial Distance of Over/Underbreak concept, which compares designed and scanned shapes relative to height and radial orientation.The results have identified confined blast zones at the top and around the corners of drawbells. Excessive confinement may cause damage to the pillars and negatively impact the stability of the production level.
在块状溶洞矿山中,抽钟可以从生产层中提取已拆解的矿石。作为施工过程的一部分,必须最大限度地减少爆炸破坏,使卷筒周围的剩余岩体能够在块体崩落作业的不同阶段承受诱发应力,从而成功实现矿山计划提取和矿石回收。本文提出了两种引铃爆破性能的岩土力学评价方法。首先,沿炮眼长度计算期望动负荷,并用于评价所测炮眼。其次,使用Over/Underbreak概念的径向距离来评估设计的符合性,该概念将设计和扫描的形状相对于高度和径向方向进行比较。结果确定了吊铃顶部和周围角落的受限爆炸区。过度的约束可能会对矿柱造成破坏,对生产水平的稳定性产生负面影响。
{"title":"Geotechnical analysis of blasting sequence and resulting shapes of drawbells in block cave mines","authors":"Nadia Bustos, E. Villaescusa, I. Onederra","doi":"10.1080/25726668.2023.2185383","DOIUrl":"https://doi.org/10.1080/25726668.2023.2185383","url":null,"abstract":"ABSTRACT Drawbells allow disassembled ore to be extracted from the production levels in block cave mines. As part of the construction process, blast damage must be minimised, enabling the remaining rock mass surrounding the drawbell to sustain the induced stress during the different stages of a block-caving operation for a successful mine plan extraction and ore recovery.This paper proposes two approaches for the geotechnical evaluation of drawbell blast performance. Initially, the expected dynamic burden is calculated along the length of the blasthole and used to assess surveyed blast holes. Secondly, the design compliance is evaluated using the Radial Distance of Over/Underbreak concept, which compares designed and scanned shapes relative to height and radial orientation.The results have identified confined blast zones at the top and around the corners of drawbells. Excessive confinement may cause damage to the pillars and negatively impact the stability of the production level.","PeriodicalId":44166,"journal":{"name":"Mining Technology-Transactions of the Institutions of Mining and Metallurgy","volume":"18 1","pages":"121 - 131"},"PeriodicalIF":1.1,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90361303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A VR-based interactive teaching and practice environment for supporting the whole process of mining engineering education 一个支持采矿工程全流程教学的基于vr的互动式教学与实践环境
IF 1.1 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-02-28 DOI: 10.1080/25726668.2023.2177737
Jiacheng Xie, Zewen Yan, Xuewen Wang
ABSTRACT Due to the complex and dangerous nature of underground industrial sites, there is an urgent need to improve practical teaching abilities. In this paper, a VR-based interactive teaching and practice environment is proposed for teaching mining equipment processes under laboratory conditions. This environment integrates a digitised design, a virtual simulation platform, and a VR interactive product operation. This VR interactive environment includes the structural cognition of mining equipment, the actual operating conditions, and the actual operation of electronic control. Moreover, this system integrates a series of virtual reality human–machine interaction hardware, so that the students can quickly learn the operating conditions and the states of the actual underground production. This system helps them comprehensively learn the mechanical, electrical, communication, control, and mining methods involved in the mining equipment. Finally, this system provides a virtual practice path for training innovative engineering technicians.
由于地下工业场地的复杂性和危险性,迫切需要提高实践教学能力。本文提出了一种基于vr的实验室条件下矿山设备工艺教学互动实践环境。该环境集成了数字化设计、虚拟仿真平台和VR交互产品操作。该虚拟现实交互环境包括矿山设备的结构认知、实际操作条件和电子控制的实际操作。此外,该系统集成了一系列虚拟现实人机交互硬件,使学生能够快速了解井下实际生产的操作条件和状态。该系统帮助他们全面学习采矿设备所涉及的机械、电气、通信、控制和采矿方法。最后,该系统为创新型工程技术人员的培养提供了虚拟实习路径。
{"title":"A VR-based interactive teaching and practice environment for supporting the whole process of mining engineering education","authors":"Jiacheng Xie, Zewen Yan, Xuewen Wang","doi":"10.1080/25726668.2023.2177737","DOIUrl":"https://doi.org/10.1080/25726668.2023.2177737","url":null,"abstract":"ABSTRACT Due to the complex and dangerous nature of underground industrial sites, there is an urgent need to improve practical teaching abilities. In this paper, a VR-based interactive teaching and practice environment is proposed for teaching mining equipment processes under laboratory conditions. This environment integrates a digitised design, a virtual simulation platform, and a VR interactive product operation. This VR interactive environment includes the structural cognition of mining equipment, the actual operating conditions, and the actual operation of electronic control. Moreover, this system integrates a series of virtual reality human–machine interaction hardware, so that the students can quickly learn the operating conditions and the states of the actual underground production. This system helps them comprehensively learn the mechanical, electrical, communication, control, and mining methods involved in the mining equipment. Finally, this system provides a virtual practice path for training innovative engineering technicians.","PeriodicalId":44166,"journal":{"name":"Mining Technology-Transactions of the Institutions of Mining and Metallurgy","volume":"63 1","pages":"89 - 105"},"PeriodicalIF":1.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79658444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of UAVs in the mining industry and towards an integrated UAV-AI-MR technology for mine rehabilitation surveillance 无人机在采矿工业中的应用以及面向地雷恢复监视的集成无人机- ai - mr技术
IF 1.1 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-02-13 DOI: 10.1080/25726668.2023.2174831
P. Stothard, Roohollah Shirani Faradonbeh
ABSTRACT This paper discusses integrating Unmanned Aerial Vehicle (UAV) data, Artificial Intelligence (AI), and Mixed Reality (MR) as a hybrid system for monitoring mine site rehabilitation. UAV systems are reviewed and the application of MR and AI to mining is discussed. The most common UAVs are low-cost multi-rotor systems however, their capabilities may be limited for long-term autonomous operation. The application scope is broad but identifies many trial UAV applications and sensors that could be integrated with MR and AI to produce an autonomous system. A simplified model for autonomous UAV, AI, and MR integrated systems is suggested along with some core modules. Via collaborative, modular development, the integration of UAV data, AI, and MR may be possible. Such a system will provide a powerful tool for mine site rehabilitation and compliance sign-off via a visual tool that allows all stakeholders to comprehend processes and data and agree when final rehabilitation is achieved.
摘要:本文讨论了将无人机(UAV)数据、人工智能(AI)和混合现实(MR)集成为一个混合系统来监测矿井现场恢复。综述了无人机系统,讨论了核磁共振和人工智能在采矿中的应用。最常见的无人机是低成本的多旋翼系统,然而,它们的能力可能受到长期自主操作的限制。应用范围很广,但确定了许多试验无人机应用和传感器,可以与MR和AI集成以产生自主系统。提出了自主无人机、人工智能和核磁共振集成系统的简化模型以及一些核心模块。通过协作、模块化开发,无人机数据、人工智能和MR的集成可能成为可能。这样一个系统将提供一个强有力的工具,通过一种可视工具,使所有利益攸关方了解进程和数据,并在最终恢复时达成一致。
{"title":"Application of UAVs in the mining industry and towards an integrated UAV-AI-MR technology for mine rehabilitation surveillance","authors":"P. Stothard, Roohollah Shirani Faradonbeh","doi":"10.1080/25726668.2023.2174831","DOIUrl":"https://doi.org/10.1080/25726668.2023.2174831","url":null,"abstract":"ABSTRACT This paper discusses integrating Unmanned Aerial Vehicle (UAV) data, Artificial Intelligence (AI), and Mixed Reality (MR) as a hybrid system for monitoring mine site rehabilitation. UAV systems are reviewed and the application of MR and AI to mining is discussed. The most common UAVs are low-cost multi-rotor systems however, their capabilities may be limited for long-term autonomous operation. The application scope is broad but identifies many trial UAV applications and sensors that could be integrated with MR and AI to produce an autonomous system. A simplified model for autonomous UAV, AI, and MR integrated systems is suggested along with some core modules. Via collaborative, modular development, the integration of UAV data, AI, and MR may be possible. Such a system will provide a powerful tool for mine site rehabilitation and compliance sign-off via a visual tool that allows all stakeholders to comprehend processes and data and agree when final rehabilitation is achieved.","PeriodicalId":44166,"journal":{"name":"Mining Technology-Transactions of the Institutions of Mining and Metallurgy","volume":"6 1","pages":"65 - 88"},"PeriodicalIF":1.1,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83655258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Optimization of escape routes during mine fire using GIS 基于GIS的矿井火灾逃生路线优化
IF 1.1 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-01-02 DOI: 10.1080/25726668.2022.2163550
Mohamed Ali, A. A. El-Aziz, Mohamed Elwageeh
ABSTRACT One of the essential factors in underground mining operations is safety during potential mine accidents, like fires, for example. We used Geographical Information System (GIS) for network analysis to identify the best escape routes from different locations inside an underground mine during a fire to a safe place inside or outside the mine. We created an effective evacuation system with a more accurate 2D model based on fire dynamics, the actual dimensions of the mine, and its related elements. We applied our system to the Maghara coal mine to predict the possible fire outbreak scenarios. Our results could be used as a guide to evacuation and rescue plans during harmful events in underground mines, especially fires. Our system is an integrated system that analyses potential fire scenarios and elects the best evacuation plan using GIS technology.
摘要地下采矿作业的关键因素之一是安全处理火灾等潜在矿山事故。利用地理信息系统(GIS)进行网络分析,确定了火灾发生时井下不同位置到矿内外安全地点的最佳逃生路线。我们根据火灾动力学、矿井的实际尺寸及其相关元素,用更精确的二维模型创建了一个有效的疏散系统。我们将我们的系统应用于马格哈拉煤矿来预测可能的火灾爆发情景。研究结果可为地下矿山发生火灾灾害时的人员疏散和救援提供指导。我们的系统是一个综合系统,可以分析潜在的火灾场景,并使用GIS技术选择最佳的疏散计划。
{"title":"Optimization of escape routes during mine fire using GIS","authors":"Mohamed Ali, A. A. El-Aziz, Mohamed Elwageeh","doi":"10.1080/25726668.2022.2163550","DOIUrl":"https://doi.org/10.1080/25726668.2022.2163550","url":null,"abstract":"ABSTRACT One of the essential factors in underground mining operations is safety during potential mine accidents, like fires, for example. We used Geographical Information System (GIS) for network analysis to identify the best escape routes from different locations inside an underground mine during a fire to a safe place inside or outside the mine. We created an effective evacuation system with a more accurate 2D model based on fire dynamics, the actual dimensions of the mine, and its related elements. We applied our system to the Maghara coal mine to predict the possible fire outbreak scenarios. Our results could be used as a guide to evacuation and rescue plans during harmful events in underground mines, especially fires. Our system is an integrated system that analyses potential fire scenarios and elects the best evacuation plan using GIS technology.","PeriodicalId":44166,"journal":{"name":"Mining Technology-Transactions of the Institutions of Mining and Metallurgy","volume":"28 1","pages":"55 - 64"},"PeriodicalIF":1.1,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77980413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimal junction localization minimizing maximum miners’ evacuation distance in underground mining network 井下采矿网络中最大矿工疏散距离最小化的最优结点定位
IF 1.1 Q3 MINING & MINERAL PROCESSING Pub Date : 2022-12-28 DOI: 10.1080/25726668.2022.2159307
Zhixuan Shao, Maximilien Meyrieux, M. Kumral
ABSTRACT Safety is a primary consideration in underground mining operations. Accidents could cause fatalities, injuries, and permanent disability of labourers, as well as irreparable financial and reputational losses. As an underground mine consists of many workspaces distributed in various zones, the selection of a junction location will be significant for timely evacuation of miners from different areas. This paper aims to determine the optimal location of the junction point for emergency evacuation in the underground network. The location problem is formulated as a MiniMax problem. Three methods are presented: Elzinga–Hearn algorithm, a three-dimensional extension of the Elzinga–Hearn algorithm, and the Welzl algorithm. The proposed methods are fully implemented in Python, and their functionality is demonstrated by conducting various case studies in 2D and 3D. The case studies showed that the proposed approaches could be used to determine junction point(s) in an underground network to serve as an evacuation location.
安全是地下采矿作业的首要考虑因素。事故可能导致劳动者死亡、受伤和永久残疾,以及无法弥补的经济和声誉损失。由于地下矿井由多个工作空间组成,分布在不同的区域,因此选择一个接点位置对于从不同区域及时疏散矿工具有重要意义。本文的目的是确定地下网络中应急疏散枢纽的最优位置。定位问题被表述为一个极大极小问题。提出了三种方法:Elzinga-Hearn算法、Elzinga-Hearn算法的三维扩展和Welzl算法。所提出的方法在Python中完全实现,并且通过在2D和3D中进行各种案例研究来演示其功能。案例研究表明,所提出的方法可用于确定地下网络中的连接点作为疏散地点。
{"title":"Optimal junction localization minimizing maximum miners’ evacuation distance in underground mining network","authors":"Zhixuan Shao, Maximilien Meyrieux, M. Kumral","doi":"10.1080/25726668.2022.2159307","DOIUrl":"https://doi.org/10.1080/25726668.2022.2159307","url":null,"abstract":"ABSTRACT Safety is a primary consideration in underground mining operations. Accidents could cause fatalities, injuries, and permanent disability of labourers, as well as irreparable financial and reputational losses. As an underground mine consists of many workspaces distributed in various zones, the selection of a junction location will be significant for timely evacuation of miners from different areas. This paper aims to determine the optimal location of the junction point for emergency evacuation in the underground network. The location problem is formulated as a MiniMax problem. Three methods are presented: Elzinga–Hearn algorithm, a three-dimensional extension of the Elzinga–Hearn algorithm, and the Welzl algorithm. The proposed methods are fully implemented in Python, and their functionality is demonstrated by conducting various case studies in 2D and 3D. The case studies showed that the proposed approaches could be used to determine junction point(s) in an underground network to serve as an evacuation location.","PeriodicalId":44166,"journal":{"name":"Mining Technology-Transactions of the Institutions of Mining and Metallurgy","volume":"56 1","pages":"41 - 54"},"PeriodicalIF":1.1,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87382392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Airborne dust pollution due to mechanised scaling in underground metalliferous mine cross-cut drive under buoyancy-driven airflow 浮力驱动气流作用下地下金属矿山横切巷道机械结垢对空气粉尘的污染
IF 1.1 Q3 MINING & MINERAL PROCESSING Pub Date : 2022-12-28 DOI: 10.1080/25726668.2022.2159301
B. Paluchamy, D. P. Mishra
ABSTRACT Nowadays, mechanised scaling is extensively used in fully mechanised underground metalliferous mines (FMUMM) for removing potentially dangerous loose rocks from the mine roof and side walls. This study measures and analyses the generation and dispersion of airborne dust due to mechanised scaling operation by scaler in cross-cut (X-cut) drive of an underground mine using real-time aerosol spectrometers. The airborne dust is analysed in terms of the concentration of various size particles in total airborne dust (TAD). The analyses of different dust sizes, viz. ≤20 μm, ≤15 μm, ≤10 μm, ≤5 μm and ≤1 μm revealed that the per cent proportion of ≤1 μm and ≤10 μm varies from 2.6 to 22.4% and 60.5 to 88.3%, respectively, in the cross-cut. Moreover, the concentration proportions of alveolic and thoracic dusts in TAD during the 20-min retention time are assessed. This study can aid in developing safe re-entry periods and efficient dust control appliances.
摘要:目前,综采地下金属矿山(FMUMM)广泛采用机械化结垢技术,以清除矿山顶板和侧壁上存在潜在危险的松散岩石。本研究利用实时气溶胶光谱仪测量和分析了某地下矿山横切驱动中,因刮刮机机械化刮刮作业而产生的空气粉尘的产生和扩散。根据空气粉尘中不同粒径颗粒的浓度对空气粉尘进行了分析。对不同粉尘粒径(≤20 μm、≤15 μm、≤10 μm、≤5 μm和≤1 μm)的分析表明,≤1 μm和≤10 μm在断面中的占比分别为2.6% ~ 22.4%和60.5% ~ 88.3%。此外,我们还评估了在20分钟的滞留时间内,TAD中肺泡和胸部粉尘的浓度比例。这项研究有助于开发安全的再入期和有效的粉尘控制设备。
{"title":"Airborne dust pollution due to mechanised scaling in underground metalliferous mine cross-cut drive under buoyancy-driven airflow","authors":"B. Paluchamy, D. P. Mishra","doi":"10.1080/25726668.2022.2159301","DOIUrl":"https://doi.org/10.1080/25726668.2022.2159301","url":null,"abstract":"ABSTRACT Nowadays, mechanised scaling is extensively used in fully mechanised underground metalliferous mines (FMUMM) for removing potentially dangerous loose rocks from the mine roof and side walls. This study measures and analyses the generation and dispersion of airborne dust due to mechanised scaling operation by scaler in cross-cut (X-cut) drive of an underground mine using real-time aerosol spectrometers. The airborne dust is analysed in terms of the concentration of various size particles in total airborne dust (TAD). The analyses of different dust sizes, viz. ≤20 μm, ≤15 μm, ≤10 μm, ≤5 μm and ≤1 μm revealed that the per cent proportion of ≤1 μm and ≤10 μm varies from 2.6 to 22.4% and 60.5 to 88.3%, respectively, in the cross-cut. Moreover, the concentration proportions of alveolic and thoracic dusts in TAD during the 20-min retention time are assessed. This study can aid in developing safe re-entry periods and efficient dust control appliances.","PeriodicalId":44166,"journal":{"name":"Mining Technology-Transactions of the Institutions of Mining and Metallurgy","volume":"8 1","pages":"30 - 40"},"PeriodicalIF":1.1,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73258128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quality assurance considerations for friction rock stabilizers 摩擦岩石稳定剂的质量保证考虑
IF 1.1 Q3 MINING & MINERAL PROCESSING Pub Date : 2022-12-05 DOI: 10.1080/25726668.2022.2151112
J. Hadjigeorgiou, S. Thorpe, K. Cole
ABSTRACT Friction rock stabilizers (FRS) are routinely used to provide rock reinforcement to excavations in hard rock. Since the expiration of the original patent taken out in 1977, FRS are now available from multiple suppliers. The expectation that all FRS are equivalent, however, is not necessarily accurate. There are inherent variations in the design configuration, material chemistry/properties, and consequently in performance. In this context, a full traceability from steel grade and heat treatment to final product is critical. This paper reports the results of a QA/QC investigation aiming to identify the material properties for three equivalent FRS from the same supplier. A series of mechanical and accelerated corrosion tests highlighted the differences in these rockbolts. This work provides a template for a more comprehensive quality assurance programme to ensure compliance of FRS. This is critical when rockbolts, due to global supply chain constraints, are outsourced from multiple sources worldwide.
摩擦岩石稳定器(FRS)通常用于在硬岩中开挖时提供岩石加固。自1977年最初的专利到期以来,FRS现在可以从多个供应商处获得。然而,所有的FRS都是相等的期望并不一定准确。在设计配置、材料化学/性能以及性能方面存在固有的变化。在这种情况下,从钢级和热处理到最终产品的完全可追溯性至关重要。本文报告了一项QA/QC调查的结果,该调查旨在确定来自同一供应商的三种等效FRS的材料性能。一系列的机械和加速腐蚀测试突出了这些岩石螺栓的差异。这项工作为更全面的质量保证计划提供了一个模板,以确保FRS的合规性。由于全球供应链的限制,当螺栓从世界各地的多个来源外包时,这一点至关重要。
{"title":"Quality assurance considerations for friction rock stabilizers","authors":"J. Hadjigeorgiou, S. Thorpe, K. Cole","doi":"10.1080/25726668.2022.2151112","DOIUrl":"https://doi.org/10.1080/25726668.2022.2151112","url":null,"abstract":"ABSTRACT\u0000 Friction rock stabilizers (FRS) are routinely used to provide rock reinforcement to excavations in hard rock. Since the expiration of the original patent taken out in 1977, FRS are now available from multiple suppliers. The expectation that all FRS are equivalent, however, is not necessarily accurate. There are inherent variations in the design configuration, material chemistry/properties, and consequently in performance. In this context, a full traceability from steel grade and heat treatment to final product is critical. This paper reports the results of a QA/QC investigation aiming to identify the material properties for three equivalent FRS from the same supplier. A series of mechanical and accelerated corrosion tests highlighted the differences in these rockbolts. This work provides a template for a more comprehensive quality assurance programme to ensure compliance of FRS. This is critical when rockbolts, due to global supply chain constraints, are outsourced from multiple sources worldwide.","PeriodicalId":44166,"journal":{"name":"Mining Technology-Transactions of the Institutions of Mining and Metallurgy","volume":"14 1","pages":"17 - 29"},"PeriodicalIF":1.1,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86952005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of carbon tax and optimal slope profiles on profitability and emissions of open pit mines 碳税和最优坡度剖面对露天矿盈利能力和排放的影响
IF 1.1 Q3 MINING & MINERAL PROCESSING Pub Date : 2022-10-06 DOI: 10.1080/25726668.2022.2122336
Andrea Agosti, S. Utili, James Tasker, C. Zhang, P. Knights, M. Nehring, Soab Zia
ABSTRACT This paper investigates the financial and environmental consequences stemming from the introduction of a carbon levy applied to mining and processing activities. The novelty is twofold: (1) the effect of a carbon tax, proportional to the emissions produced by all relevant mining activities, is accounted for in the determination of the Ultimate Pit Limit (UPL), i.e. the environmental costs are not applied a posteriori to pit optimization but included concurrently to Net Present Value (NPV) maximization, allowing to investigate the relationship between carbon tax value versus NPV, amount of ore extracted and carbon emissions; (2) we use a new software, OptimalSlope, to automatically determine geotechnically optimal profiles for the mine pitwalls. The Marvin copper deposit (block model data publicly available from MineLib repository) was adopted as a case study. Several pit optimizations were performed based on four different values of carbon tax and adopting either traditional planar or non-linear optimal pitwalls. It emerges that the relationships between carbon tax value versus NPV, amount of ore extracted, and carbon emissions exhibited linearity in both cases of planar and optimal pitwall profiles. Moreover, the adoption of optimal profiles realizes gains up to 215 million AUD, without compromising the safety of the UPL.
本文研究了引入适用于采矿和加工活动的碳税所产生的财务和环境后果。其新颖性有两方面:(1)在确定最终矿坑限额(UPL)时考虑了与所有相关采矿活动产生的排放量成比例的碳税的影响,即环境成本不是后验地应用于矿坑优化,而是同时包括净现值(NPV)最大化,从而可以研究碳税价值与NPV、矿石采出量和碳排放量之间的关系;(2)利用OptimalSlope软件自动确定矿井井壁的最优地质技术剖面。以Marvin铜矿(MineLib存储库中公开的区块模型数据)为例进行研究。基于四种不同的碳税值,采用传统的平面或非线性优化坑壁,进行了几种坑壁优化。结果表明,碳税值与净现值、矿石开采量和碳排放量之间的关系在平面和最佳坑壁剖面中均呈线性关系。此外,在不影响UPL安全性的前提下,采用最佳配置文件可实现高达2.15亿澳元的收益。
{"title":"The effect of carbon tax and optimal slope profiles on profitability and emissions of open pit mines","authors":"Andrea Agosti, S. Utili, James Tasker, C. Zhang, P. Knights, M. Nehring, Soab Zia","doi":"10.1080/25726668.2022.2122336","DOIUrl":"https://doi.org/10.1080/25726668.2022.2122336","url":null,"abstract":"ABSTRACT This paper investigates the financial and environmental consequences stemming from the introduction of a carbon levy applied to mining and processing activities. The novelty is twofold: (1) the effect of a carbon tax, proportional to the emissions produced by all relevant mining activities, is accounted for in the determination of the Ultimate Pit Limit (UPL), i.e. the environmental costs are not applied a posteriori to pit optimization but included concurrently to Net Present Value (NPV) maximization, allowing to investigate the relationship between carbon tax value versus NPV, amount of ore extracted and carbon emissions; (2) we use a new software, OptimalSlope, to automatically determine geotechnically optimal profiles for the mine pitwalls. The Marvin copper deposit (block model data publicly available from MineLib repository) was adopted as a case study. Several pit optimizations were performed based on four different values of carbon tax and adopting either traditional planar or non-linear optimal pitwalls. It emerges that the relationships between carbon tax value versus NPV, amount of ore extracted, and carbon emissions exhibited linearity in both cases of planar and optimal pitwall profiles. Moreover, the adoption of optimal profiles realizes gains up to 215 million AUD, without compromising the safety of the UPL.","PeriodicalId":44166,"journal":{"name":"Mining Technology-Transactions of the Institutions of Mining and Metallurgy","volume":"17 1","pages":"1 - 16"},"PeriodicalIF":1.1,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81843460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modelling flooding due to runoff from spoil heaps during heavy rainfall 模拟暴雨期间由废土堆径流引起的洪水
IF 1.1 Q3 MINING & MINERAL PROCESSING Pub Date : 2022-10-02 DOI: 10.1080/25726668.2022.2143645
M. D. Bedford, P. J. Foster, M. Gibson, Albert S. Chen
ABSTRACT Flash floods generated by runoff from abandoned spoil heaps have posed great risks to neighbouring areas but there has been little study on the process, so it is difficult to evaluate the effectiveness of runoff retention or detention measures. These events are likely to become more frequent in a future climate change scenario. To provide a means by which interested parties can study such events, including methods of mitigation, a computer modelling approach is proposed using free open-source software. Unlike conventional tools that solve the shallow water equations, the software tool uses a cellular automata approach to reduce the computational overhead. It is also easy to use so it is suitable for use by practitioners who are not hydrology experts. The method is illustrated by modelling a historical flood in the UK involving spoil heap runoff. Good correlation was observed between the characteristics of the actual and simulated flood event.
摘要废弃矸石堆径流引发的山洪给周边地区带来了巨大的风险,但对这一过程的研究很少,因此很难评价径流截留或滞留措施的有效性。在未来的气候变化情景中,这些事件可能会变得更加频繁。为了提供一种手段,使有关各方能够研究这类事件,包括减轻影响的方法,建议使用免费的开源软件进行计算机建模。与解决浅水方程的传统工具不同,该软件工具使用元胞自动机方法来减少计算开销。它也很容易使用,所以它适合由不是水文学专家的从业者使用。该方法是通过模拟历史洪水在英国涉及废渣堆径流说明。实际和模拟洪水事件的特征具有较好的相关性。
{"title":"Modelling flooding due to runoff from spoil heaps during heavy rainfall","authors":"M. D. Bedford, P. J. Foster, M. Gibson, Albert S. Chen","doi":"10.1080/25726668.2022.2143645","DOIUrl":"https://doi.org/10.1080/25726668.2022.2143645","url":null,"abstract":"ABSTRACT Flash floods generated by runoff from abandoned spoil heaps have posed great risks to neighbouring areas but there has been little study on the process, so it is difficult to evaluate the effectiveness of runoff retention or detention measures. These events are likely to become more frequent in a future climate change scenario. To provide a means by which interested parties can study such events, including methods of mitigation, a computer modelling approach is proposed using free open-source software. Unlike conventional tools that solve the shallow water equations, the software tool uses a cellular automata approach to reduce the computational overhead. It is also easy to use so it is suitable for use by practitioners who are not hydrology experts. The method is illustrated by modelling a historical flood in the UK involving spoil heap runoff. Good correlation was observed between the characteristics of the actual and simulated flood event.","PeriodicalId":44166,"journal":{"name":"Mining Technology-Transactions of the Institutions of Mining and Metallurgy","volume":"53 11","pages":"239 - 248"},"PeriodicalIF":1.1,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72431337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Mining Technology-Transactions of the Institutions of Mining and Metallurgy
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1