研究岩体节理对哈萨克斯坦Katpar北部矿床发育过程中台阶稳定性的影响

IF 2.8 Q2 MINING & MINERAL PROCESSING Mining of Mineral Deposits Pub Date : 2023-06-30 DOI:10.33271/mining17.02.099
Bauyrzhan Tolovkhan, Assemgul Smagulova, N. Khuangan, S. Asainov, Sayat Issagulov, Dinara Kaumetova, Bolatkhan Khussan, Manarbek Sandibekov
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引用次数: 2

摘要

目的是识别岩体中的基本节理系统及其特征、分布,确定节理对台阶稳定性的影响。方法。根据岩石稳定性损失的定义,确定了局部区域内以块体沿软弱面滑动形式出现应变的风险。采用圆形图和条形图以及立体网格对大型焊接测量结果进行了处理。在本文的背景下,运动学分析是通过dip Rocscience公司实现的。软件发现。已经确定了五个基本的关节系统;其中最常见的是二系和五系关节。给出了露天矿边界内的节理确定结果,以及考虑滑动面的潜在应变的露天矿围岩稳定性。创意。首次对露天矿围岩滑块类型进行了分区。确定棱柱体块体的潜在剪切力为33%;同时,66%为台阶破坏伴块体倾倒。楔形块体剪切的风险最小。实际意义。研究结果有助于在特定的采矿和地质条件下确定和选择安全开采的参数和条件。反过来,上述将有助于减少事故的风险,同时为选择采石顺序、技术和系统提供科学依据。
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Studying rock mass jointing to provide bench stability while Northern Katpar deposit developing in Kazakhstan
Purpose is to identify the basic joint systems, their characteristics, distribution within the rock mass, and determine impact of the joints on the bench stability. Methods. The risks of strain emergence in the form of blocks sliding along weakness surfaces within the local areas were determined based upon the definition of rock stability loss. The results of large-scale measurements of jointing were processed using circular and bar diagrams as well as stereographic grids. In the context of the paper, kinematic analysis was implemented through Dips Rocscience Inc. Software. Findings. Five basic joint systems have been identified; joints of 2nd and 5th systems are the most commonly encountered among them. The results of the jointing determination within the open pit boundaries have been represented as well as the open pit wall stability in terms of each site inclusive of consideration of potential strains along the sliding surface. Originality. For the first time, zoning of the open pit wall in terms of slide types has been performed. It has been identified that potential shear of a prismatic block is 33%; at the same time, 66% are bench destruction with the block toppling. The risk of wedge-shaped block shear is minimal. Practical implications. The research findings may be helpful to define and select both parameters and conditions of safe mineral extraction under the specific mining and geological conditions. In turn, the abovementioned will help reduce the risk of accidence while providing scientifically substantiated approach to select quarrying sequence, techniques, and system.
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来源期刊
Mining of Mineral Deposits
Mining of Mineral Deposits MINING & MINERAL PROCESSING-
CiteScore
5.20
自引率
15.80%
发文量
52
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