Pub Date : 2023-07-14DOI: 10.1080/17480930.2023.2235845
Kunze Li, H. L. Ramandi, Chengguo Zhang, Sarp Saydam, Joung-Bae Oh, S. Saydam
ABSTRACT The feasibility of using a portable photogrammetric device to digitalise rock surface roughness is investigated. Structured light 3D scanner, terrestrial LiDAR scanner, and portable photogrammetry device are used to scan precast different roughness lab-scale specimens. The reconstructed 3D surface is evaluated for accuracy using point cloud distance, joint roughness coefficient, and 3D roughness parameters. Results show that the portable device can reconstruct a 3D model comparable in accuracy to a structured light 3D scanner in 15 minutes. The proposed method is applied to laboratory-scale model reconstruction, with the potential to scan rock surfaces efficiently and economically in a mine.
{"title":"Exploring the capabilities of portable device photogrammetry for 3D surface roughness evaluation","authors":"Kunze Li, H. L. Ramandi, Chengguo Zhang, Sarp Saydam, Joung-Bae Oh, S. Saydam","doi":"10.1080/17480930.2023.2235845","DOIUrl":"https://doi.org/10.1080/17480930.2023.2235845","url":null,"abstract":"ABSTRACT The feasibility of using a portable photogrammetric device to digitalise rock surface roughness is investigated. Structured light 3D scanner, terrestrial LiDAR scanner, and portable photogrammetry device are used to scan precast different roughness lab-scale specimens. The reconstructed 3D surface is evaluated for accuracy using point cloud distance, joint roughness coefficient, and 3D roughness parameters. Results show that the portable device can reconstruct a 3D model comparable in accuracy to a structured light 3D scanner in 15 minutes. The proposed method is applied to laboratory-scale model reconstruction, with the potential to scan rock surfaces efficiently and economically in a mine.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":"37 1","pages":"630 - 647"},"PeriodicalIF":2.4,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44379434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-11DOI: 10.1080/17480930.2023.2233866
Baoxu Yan, Hanwen Jia, Zhen-sheng Yang, E. Yilmaz, Hong-lei Liu
ABSTRACT The stability of concealed goafs in open-pit mines under the influence of blasting disturbances is directly related to successful mining production. Based on large-scale similar simulations, this study steadily analyses the evolution of full-stress/strain and acoustic emission response information relevant to the instability and failure of the concealed goaf under multiple blasting disturbances in an open-pit iron mine. The results show that after three blasting disturbances, a tension-shear dislocation area is formed at the side corner of the goaf. The goaf roof’s vertical displacement exhibits a ‘two-stage increase’ before roof caving. In contrast, the axial stress on the side wall undergoes ‘two-stage pressure relief’ before roof caving. The stress pattern of ‘stretch-unload-compression-shear’ is observed near the free surface of the side angle before roof caving, while ‘two-stage pressurisation’ is observed at the far end of the free surface. This paper delivers a new way of exploring goaf stability under blasting disturbances.
{"title":"Goaf instability in an open pit iron mine triggered by dynamics disturbance: a large-scale similar simulation","authors":"Baoxu Yan, Hanwen Jia, Zhen-sheng Yang, E. Yilmaz, Hong-lei Liu","doi":"10.1080/17480930.2023.2233866","DOIUrl":"https://doi.org/10.1080/17480930.2023.2233866","url":null,"abstract":"ABSTRACT The stability of concealed goafs in open-pit mines under the influence of blasting disturbances is directly related to successful mining production. Based on large-scale similar simulations, this study steadily analyses the evolution of full-stress/strain and acoustic emission response information relevant to the instability and failure of the concealed goaf under multiple blasting disturbances in an open-pit iron mine. The results show that after three blasting disturbances, a tension-shear dislocation area is formed at the side corner of the goaf. The goaf roof’s vertical displacement exhibits a ‘two-stage increase’ before roof caving. In contrast, the axial stress on the side wall undergoes ‘two-stage pressure relief’ before roof caving. The stress pattern of ‘stretch-unload-compression-shear’ is observed near the free surface of the side angle before roof caving, while ‘two-stage pressurisation’ is observed at the far end of the free surface. This paper delivers a new way of exploring goaf stability under blasting disturbances.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":"37 1","pages":"606 - 629"},"PeriodicalIF":2.4,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49533299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-05DOI: 10.1080/17480930.2023.2232987
A. Bascetin, S. Tuylu, D. Adiguzel
ABSTRACT There are many factors affecting the mechanical and geochemical stability of the surface paste disposal (SPD) method. The most important of these are the cracks occurring during the storage of tailings. The relationship between the volumetric water content (VWC), matrix absorption (MS), and oxygen (O2) values of the paste material are important in the formation of cracks. In this study, surface crack formations of the paste material stored at the laboratory in accordance with 3 different storage methods (cemented and uncemented) were observed during the pour and after the deposition, and crack intensity factor (CIF) was measured. The relationship between CIF with VWC, MS, and O2 parameters was examined. As a result, the CIF value decreases approximately by %75 with cement addition in the lowest and highest layers in the SPD method. In a case receiving the most rain, the crack intensity value of the highest layer was determined to be 3,9% in the Design 3 where cement was used in the lowest and highest layers. In addition, VWC, MS, and O2 levels were 35%, −29 kPa, and 17.5%, respectively, making the paste material more efficient in terms of mechanical and geochemical stability.
{"title":"Investigation of optimal surface paste disposal design based on crack intensity","authors":"A. Bascetin, S. Tuylu, D. Adiguzel","doi":"10.1080/17480930.2023.2232987","DOIUrl":"https://doi.org/10.1080/17480930.2023.2232987","url":null,"abstract":"ABSTRACT There are many factors affecting the mechanical and geochemical stability of the surface paste disposal (SPD) method. The most important of these are the cracks occurring during the storage of tailings. The relationship between the volumetric water content (VWC), matrix absorption (MS), and oxygen (O2) values of the paste material are important in the formation of cracks. In this study, surface crack formations of the paste material stored at the laboratory in accordance with 3 different storage methods (cemented and uncemented) were observed during the pour and after the deposition, and crack intensity factor (CIF) was measured. The relationship between CIF with VWC, MS, and O2 parameters was examined. As a result, the CIF value decreases approximately by %75 with cement addition in the lowest and highest layers in the SPD method. In a case receiving the most rain, the crack intensity value of the highest layer was determined to be 3,9% in the Design 3 where cement was used in the lowest and highest layers. In addition, VWC, MS, and O2 levels were 35%, −29 kPa, and 17.5%, respectively, making the paste material more efficient in terms of mechanical and geochemical stability.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":"37 1","pages":"590 - 605"},"PeriodicalIF":2.4,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47203856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Machine learning models for occurrence form prediction of heavy metals in tailings","authors":"Jiashuai Zheng, Mengting Wu, ZaherMundher Yaseen, Chongchong Qi","doi":"10.1080/17480930.2023.2229689","DOIUrl":"https://doi.org/10.1080/17480930.2023.2229689","url":null,"abstract":"","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43787023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-21DOI: 10.1080/17480930.2023.2226474
A. C. Buch, D. B. Sims, M. Correia, E. D. Marques, E. Silva-Filho
ABSTRACT The magnitude of the impacts caused by tailing dam failures represents, in a very short space of time, the potential risks of metals on the environment along time. In riparian soils affected by the failure of Córrego do Feijão Mine dam (Brazil), potential pollution risks were estimated using geochemical indices. Based on background and baseline values, strong anthropogenic interferences in the soil metal enrichment has been evidenced after collapse. Abnormal levels of Cd (1.01 mg kg−1), Cr (80 mg kg−1), As (28 mg kg−1), Cu (90 mg kg−1), Pb (80 mg kg−1), and Ni (35 mg kg−1) in soils were associated to the highest risks. Overall, the potential ecological risk (>600) and pollution load (>5) indices indicated Brumadinho, Mário Campos, Betim and São Joaquim de Bicas as the areas most affected by the tailings spill. For the most areas, the geological accumulation index calculated from baseline values showed high commitments in soil quality, with pollution degree from moderately to strongly polluted (from 3 to 5, for Hg and Ni) and extremely polluted (>5, for Cd and Pb). In order to maintain the functional ecosystem integrity, restorative and reparative actions must be urgently carried out in these areas
尾矿库溃坝影响的大小，反映了金属在很短时间内对环境的潜在风险。利用地球化学指标对巴西Córrego do feij矿坝溃坝影响的河岸土进行了潜在污染风险评价。基于背景值和基线值，塌陷后土壤金属富集受到强烈的人为干扰。土壤中Cd (1.01 mg kg - 1)、Cr (80 mg kg - 1)、As (28 mg kg - 1)、Cu (90 mg kg - 1)、Pb (80 mg kg - 1)和Ni (35 mg kg - 1)的异常水平与最高风险相关。总体而言，潜在生态风险指数(bbb600)和污染负荷指数(bbb5)表明Brumadinho、Mário Campos、Betim和 o Joaquim de Bicas是受尾矿泄漏影响最大的地区。在大多数地区，根据基线值计算的地质堆积指数显示出土壤质量的高承诺，污染程度从中度到重度污染(Hg和Ni从3到5)到重度污染(Cd和Pb从bbb50)。为了保持生态系统功能的完整，必须在这些地区紧急采取恢复和修复行动
{"title":"Preliminary assessment of potential pollution risks in soils: case study of the Córrego do Feijão Mine dam failure (Brumadinho, Minas Gerais, Brazil)","authors":"A. C. Buch, D. B. Sims, M. Correia, E. D. Marques, E. Silva-Filho","doi":"10.1080/17480930.2023.2226474","DOIUrl":"https://doi.org/10.1080/17480930.2023.2226474","url":null,"abstract":"ABSTRACT The magnitude of the impacts caused by tailing dam failures represents, in a very short space of time, the potential risks of metals on the environment along time. In riparian soils affected by the failure of Córrego do Feijão Mine dam (Brazil), potential pollution risks were estimated using geochemical indices. Based on background and baseline values, strong anthropogenic interferences in the soil metal enrichment has been evidenced after collapse. Abnormal levels of Cd (1.01 mg kg−1), Cr (80 mg kg−1), As (28 mg kg−1), Cu (90 mg kg−1), Pb (80 mg kg−1), and Ni (35 mg kg−1) in soils were associated to the highest risks. Overall, the potential ecological risk (>600) and pollution load (>5) indices indicated Brumadinho, Mário Campos, Betim and São Joaquim de Bicas as the areas most affected by the tailings spill. For the most areas, the geological accumulation index calculated from baseline values showed high commitments in soil quality, with pollution degree from moderately to strongly polluted (from 3 to 5, for Hg and Ni) and extremely polluted (>5, for Cd and Pb). In order to maintain the functional ecosystem integrity, restorative and reparative actions must be urgently carried out in these areas","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":"37 1","pages":"569 - 589"},"PeriodicalIF":2.4,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47511075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-27DOI: 10.1080/17480930.2023.2216498
Ich D. Ngo, Liqiang Ma, Jiangtao Zhai, Yangyang Wang, Tianxiang Wei
ABSTRACT This study aims to investigate the weakening of CO2-fly ash-based backfill (CFBF) material in cation water. Weakening is determined in an order of Na+ > Ca2+ > Mg2+ by slake durability and mechanical properties analysis. Na+ damages the microstructure of CFBF through the ion exchange phenomenon, causing the ejection of tetrahedral calcium. In Ca2+ and Mg2+ water, N-M-A-S-H gel is precipitated and filled in openings via a two electrical-layer mechanism, which mitigates the materials from further deterioration. On this basis, the suitable cation type and concentration range are proposed as criteria to implement CFBF in mine-water affected backfill coal mining.
{"title":"Durability of CO2-fly ash-based backfill materials in cation water deterioration","authors":"Ich D. Ngo, Liqiang Ma, Jiangtao Zhai, Yangyang Wang, Tianxiang Wei","doi":"10.1080/17480930.2023.2216498","DOIUrl":"https://doi.org/10.1080/17480930.2023.2216498","url":null,"abstract":"ABSTRACT This study aims to investigate the weakening of CO2-fly ash-based backfill (CFBF) material in cation water. Weakening is determined in an order of Na+ > Ca2+ > Mg2+ by slake durability and mechanical properties analysis. Na+ damages the microstructure of CFBF through the ion exchange phenomenon, causing the ejection of tetrahedral calcium. In Ca2+ and Mg2+ water, N-M-A-S-H gel is precipitated and filled in openings via a two electrical-layer mechanism, which mitigates the materials from further deterioration. On this basis, the suitable cation type and concentration range are proposed as criteria to implement CFBF in mine-water affected backfill coal mining.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":"37 1","pages":"544 - 567"},"PeriodicalIF":2.4,"publicationDate":"2023-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45465790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.1080/17480930.2023.2213549
S. B. Çelik, İ. Çobanoğlu, T. Koralay, K. Gireson
ABSTRACT The Leeb hardness is a practical, economical and non-destructive test method in rock characterisation in engineering. Hardness measurements on core samples with lower values of length-to-diameter (L/D) ratios cause unstable measurements, and as a result, erroneous evaluations can be made. To overcome this limitation, this study aimed to reveal the effect of different L/D ratios both in axial and diametral measurement directions. Eleven types of rock samples were prepared and tested. Mineralogical and petrographic examinations were performed and evaluated together with the hardness values. Equations have been proposed to estimate correct hardness and uniaxial compressive strength values for all rock types.
{"title":"Investigation of the Leeb hardness test in rapid characterisation of rock cores with particular emphasis on the effect of length to diameter ratio","authors":"S. B. Çelik, İ. Çobanoğlu, T. Koralay, K. Gireson","doi":"10.1080/17480930.2023.2213549","DOIUrl":"https://doi.org/10.1080/17480930.2023.2213549","url":null,"abstract":"ABSTRACT The Leeb hardness is a practical, economical and non-destructive test method in rock characterisation in engineering. Hardness measurements on core samples with lower values of length-to-diameter (L/D) ratios cause unstable measurements, and as a result, erroneous evaluations can be made. To overcome this limitation, this study aimed to reveal the effect of different L/D ratios both in axial and diametral measurement directions. Eleven types of rock samples were prepared and tested. Mineralogical and petrographic examinations were performed and evaluated together with the hardness values. Equations have been proposed to estimate correct hardness and uniaxial compressive strength values for all rock types.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":"37 1","pages":"524 - 543"},"PeriodicalIF":2.4,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41806918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-17DOI: 10.1080/17480930.2023.2212575
Hua Tian, David J. Williams, K. Mandisodza, Chenming Zhang, Sebastian Quintero Olaya, Wenqiang Zhang, Chongyi Tang
ABSTRACT Basic engineering parameters of fine-grained red mud tailings were evaluated via laboratory tests; the coupled effect of mineralogy and microstructure was investigated by appraising the stress-deformation characteristics; and the static and seismic liquefaction susceptibilities were evaluated via critical state soil mechanics and empirical equations, respectively. Results indicated the presence of cementitious minerals without swollen clay minerals. The textural and compression properties were similar to those of clays, whereas the strength parameters were similar to those of sand. The stress-deformation curves show overall strain softening with a temporary strain-hardening curve at the beginning, which can be qualitatively explained by the coupled effect of the microstructure and mineral components. Hydroxysodalite precipitated at the contact points among the particles afforded microstructural cementation bonds, allowing the aggregates to resist external loads at the initial loading stage. Red mud presented strong resistance to static liquefaction but was potentially seismically liquefiable.
{"title":"Engineering properties of fine-grained red mud","authors":"Hua Tian, David J. Williams, K. Mandisodza, Chenming Zhang, Sebastian Quintero Olaya, Wenqiang Zhang, Chongyi Tang","doi":"10.1080/17480930.2023.2212575","DOIUrl":"https://doi.org/10.1080/17480930.2023.2212575","url":null,"abstract":"ABSTRACT Basic engineering parameters of fine-grained red mud tailings were evaluated via laboratory tests; the coupled effect of mineralogy and microstructure was investigated by appraising the stress-deformation characteristics; and the static and seismic liquefaction susceptibilities were evaluated via critical state soil mechanics and empirical equations, respectively. Results indicated the presence of cementitious minerals without swollen clay minerals. The textural and compression properties were similar to those of clays, whereas the strength parameters were similar to those of sand. The stress-deformation curves show overall strain softening with a temporary strain-hardening curve at the beginning, which can be qualitatively explained by the coupled effect of the microstructure and mineral components. Hydroxysodalite precipitated at the contact points among the particles afforded microstructural cementation bonds, allowing the aggregates to resist external loads at the initial loading stage. Red mud presented strong resistance to static liquefaction but was potentially seismically liquefiable.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":"64 7","pages":"399 - 418"},"PeriodicalIF":2.4,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41305888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT To explore the dynamic crack propagation behaviour in the fracture zone and the damage characteristics of the rock mass around the blasthole during eccentric uncoupled blasting of a deep-level rock mass, theoretical analysis, model experiments and numerical simulation studies have been described in this paper. Firstly, the stress state of the crack and the stress distribution state and failure mechanism of the rock mass around the blasthole under the influence of the in-situ stress, and the pressure distribution of blast shock wave on the blasthole were analysed. Secondly, with the help of a new digital laser caustics experimental system, the eccentric uncoupled blasting model experiment under the action of the in-situ stress was carried out. The fractal damage theory is used to quantitatively evaluate the damage degree of the rock mass in different areas around the blasthole, and the blast-induced crack propagation mechanical behaviour characteristics in the fracture zone are analyzed from the perspective of dynamics. Then, based on the LS-DYNA software, a numerical simulation study was conducted on the eccentric blasting of deep rock mass. Finally, some discussions and suggestions are provided for the analysis of blasting mechanisms in a deep-level rock mass.
{"title":"Study on the crack propagation behaviour of eccentric uncoupled blasting in a deep-level rock mass","authors":"Fei Zhang, Li-yun Yang, Huanning Hu, Chen Huang, Siyu Chen","doi":"10.1080/17480930.2023.2213546","DOIUrl":"https://doi.org/10.1080/17480930.2023.2213546","url":null,"abstract":"ABSTRACT To explore the dynamic crack propagation behaviour in the fracture zone and the damage characteristics of the rock mass around the blasthole during eccentric uncoupled blasting of a deep-level rock mass, theoretical analysis, model experiments and numerical simulation studies have been described in this paper. Firstly, the stress state of the crack and the stress distribution state and failure mechanism of the rock mass around the blasthole under the influence of the in-situ stress, and the pressure distribution of blast shock wave on the blasthole were analysed. Secondly, with the help of a new digital laser caustics experimental system, the eccentric uncoupled blasting model experiment under the action of the in-situ stress was carried out. The fractal damage theory is used to quantitatively evaluate the damage degree of the rock mass in different areas around the blasthole, and the blast-induced crack propagation mechanical behaviour characteristics in the fracture zone are analyzed from the perspective of dynamics. Then, based on the LS-DYNA software, a numerical simulation study was conducted on the eccentric blasting of deep rock mass. Finally, some discussions and suggestions are provided for the analysis of blasting mechanisms in a deep-level rock mass.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":"37 1","pages":"419 - 440"},"PeriodicalIF":2.4,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46281674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-13DOI: 10.1080/17480930.2023.2199378
Zeyneb Brika, M. Gamache, R. Dimitrakopoulos
ABSTRACT This paper presents an approach to optimise the long-term production scheduling of an open pit mine with multiple processing streams, while accounting for investment decisions under mineral supply uncertainty. The solution approach consists of first solving the linear relaxation using an extension of the Bienstock-Zuckerberg algorithm to the stochastic optimisation. Then, a rounding heuristic based on the topological sorting is applied, followed by a parallel multi-neighbourhood Tabu search. The proposed method is applied to a multi-product open pit mine deposit, with the possibility of investing in new shovels, trucks or crushers to increase related capacities.
{"title":"Optimising the mine production scheduling accounting for stockpiling and investment decisions under geological uncertainty","authors":"Zeyneb Brika, M. Gamache, R. Dimitrakopoulos","doi":"10.1080/17480930.2023.2199378","DOIUrl":"https://doi.org/10.1080/17480930.2023.2199378","url":null,"abstract":"ABSTRACT This paper presents an approach to optimise the long-term production scheduling of an open pit mine with multiple processing streams, while accounting for investment decisions under mineral supply uncertainty. The solution approach consists of first solving the linear relaxation using an extension of the Bienstock-Zuckerberg algorithm to the stochastic optimisation. Then, a rounding heuristic based on the topological sorting is applied, followed by a parallel multi-neighbourhood Tabu search. The proposed method is applied to a multi-product open pit mine deposit, with the possibility of investing in new shovels, trucks or crushers to increase related capacities.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":"37 1","pages":"355 - 374"},"PeriodicalIF":2.4,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47563451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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