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Monitoring and analysis of ground subsidence and backfill stress distribution in Jinchuan Mine, China

文献类型：期刊论文

作者Lu, Rong1,2,3; Ma, Fengshan1,3; Guo, Jie1,3; Zhao, Haijun1,3
刊名CURRENT SCIENCE
出版日期2018-11-25
卷号115期号:10页码:1970-1977
关键词Backfill deformation ground subsidence mining stress redistribution
ISSN号0011-3891
DOI10.18520/cs/v115/i10/1970-1977
英文摘要Backfilling is widely used in mining operations. Deformation of a large volume of backfill leads to rock movement and ground subsidence. This study analysed ground subsidence and backfill deformation, combined with ground subsidence monitoring and numerical simulation. The results showed that the ground subsidence trough was located at the centre of the hanging wall of the ore body. The maximum vertical displacement exceeded 2000 mm. Underground excavation and filling led to stress redistribution. The shear stress concentrated at the backfill boundary and contact zone of the backfill and surrounding rock. The shear stress distribution changed with the shape of the backfill. The corner of the backfill boundary was the key position of shear stress concentration. The Mohr's circle showed the envelope line where cohesion of 500 kPa could meet the strength requirement in the shallow part of the backfill; in the deep part, the cohesion required was 1500 kPa. The deep part of the backfill therefore failed more easily than the shallow part.
WOS关键词MOVEMENT
资助项目National Science Foundation of China[41772341] ; National Science Foundation of China[41372323]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000450877400033
出版者INDIAN ACAD SCIENCES
资助机构National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/89604]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Ma, Fengshan
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Rong,Ma, Fengshan,Guo, Jie,et al. Monitoring and analysis of ground subsidence and backfill stress distribution in Jinchuan Mine, China[J]. CURRENT SCIENCE,2018,115(10):1970-1977.
APA Lu, Rong,Ma, Fengshan,Guo, Jie,&Zhao, Haijun.(2018).Monitoring and analysis of ground subsidence and backfill stress distribution in Jinchuan Mine, China.CURRENT SCIENCE,115(10),1970-1977.
MLA Lu, Rong,et al."Monitoring and analysis of ground subsidence and backfill stress distribution in Jinchuan Mine, China".CURRENT SCIENCE 115.10(2018):1970-1977.

入库方式： OAI收割

来源：地质与地球物理研究所

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