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Investigation of the Mechanism of Roof Caving in the Jinchuan Nickel Mine, China

文献类型：期刊论文

作者Ding, Kuo1,2; Ma, Fengshan2; Guo, Jie2; Zhao, Haijun2; Lu, Rong2; Liu, Feng2
刊名ROCK MECHANICS AND ROCK ENGINEERING
出版日期2018-04-01
卷号51期号:4页码:1215-1226
关键词Collapse event Filling method Fault activation Numerical model
ISSN号0723-2632
DOI10.1007/s00603-017-1374-0
文献子类Article
英文摘要On 13 March 2016, a sudden, violent roof caving event with a collapse area of nearly 11,000 m(2) occurred in the Jinchuan Nickel Mine and accompanied by air blasts, loud noises and ground vibrations. This collapse event coincided with related, conspicuous surface subsidence across an area of nearly 19,000 m(2). This article aims to analyse this collapse event. In previous studies, various mining-induced collapses have been studied, but collapse accidents associated with the filling mining method are very rare and have not been thoroughly studied. The filling method has been regarded as a safe mining method for a long time, so research on associated collapse mechanisms is of considerable significance. In this study, a detailed field investigation of roadway damage was performed, and GPS monitoring results were used to analyse the surface failure. In addition, a numerical model was constructed based on the geometry of the ore body and a major fault. The analysis of the model revealed three failure mechanisms acting during different stages of destruction: double-sided embedded beam deformation, fault activation, and cantilever-articulated rock beam failure. The fault activation and the specific filling method are the key factors of this collapse event. To gain a better understanding of these factors, the shear stress and normal stress along the fault plane were monitored to determine the variation in stress at different failure stages. Discrete element models were established to study two filling methods and to analyse the stability of different filling structures.
WOS关键词COAL-MINE ; FILL
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:000427802600014
出版者SPRINGER WIEN
资助机构Natural Science Foundation of China(41372323 ; Natural Science Foundation of China(41372323 ; 41372325 ; 41372325 ; 41402280) ; 41402280) ; Natural Science Foundation of China(41372323 ; Natural Science Foundation of China(41372323 ; 41372325 ; 41372325 ; 41402280) ; 41402280) ; Natural Science Foundation of China(41372323 ; Natural Science Foundation of China(41372323 ; 41372325 ; 41372325 ; 41402280) ; 41402280) ; Natural Science Foundation of China(41372323 ; Natural Science Foundation of China(41372323 ; 41372325 ; 41372325 ; 41402280) ; 41402280)
源URL[http://ir.iggcas.ac.cn/handle/132A11/82948]  
专题中国科学院地质与地球物理研究所
通讯作者Ma, Fengshan
作者单位1.North China Univ Technol, Sch Civil Engn, Beijing 100144, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Ding, Kuo,Ma, Fengshan,Guo, Jie,et al. Investigation of the Mechanism of Roof Caving in the Jinchuan Nickel Mine, China[J]. ROCK MECHANICS AND ROCK ENGINEERING,2018,51(4):1215-1226.
APA Ding, Kuo,Ma, Fengshan,Guo, Jie,Zhao, Haijun,Lu, Rong,&Liu, Feng.(2018).Investigation of the Mechanism of Roof Caving in the Jinchuan Nickel Mine, China.ROCK MECHANICS AND ROCK ENGINEERING,51(4),1215-1226.
MLA Ding, Kuo,et al."Investigation of the Mechanism of Roof Caving in the Jinchuan Nickel Mine, China".ROCK MECHANICS AND ROCK ENGINEERING 51.4(2018):1215-1226.

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来源：地质与地球物理研究所

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