Ground movement mechanism in tectonic stress metal mines with steep structure planes

doi:10.1007/s11771-017-3618-2

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	Ground movement mechanism in tectonic stress metal mines with steep structure planes
	Liu Xiu-min; Fu Hua; Zheng Yuan; Xia Kai-zong; Chen Cong-xin
刊名	JOURNAL OF CENTRAL SOUTH UNIVERSITY
	2017
卷号	24 期号:9 页码:2092-2104
关键词	mining engineering underground mining ground movement horizontal stress column cantilever pillar
ISSN号	2095-2899
DOI	10.1007/s11771-017-3618-2
英文摘要	When mining metal mines with steep structure planes by the caving method, there is a mechanical model in which the horizontal stress on the rock mass is simplified as a column before surface subsidence. The model is used to deduce critical support load and limiting column length for a given horizontal stress and support pressure. Considering the impact of the column effect, a method is proposed to determine the movement of the ground and caving area in a mine. After surface subsidence, the horizontal stress on a surrounding rock mass can be simplified to a cantilever beam mechanical model. Expressions for its bending fracture length are deduced, and a method is given to determine its stability. On this basis, an explanation for the large ground movement and subsidence scope was given. A case study shows that the damage effect of column and cantilever beam is significant for ground movement in metal-ore mine, and an appropriate correction value should be applied when designing for its angle of ground movements.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL OF CENTRAL SOUTH UNIV TECHNOLOGY
WOS记录号	WOS:000413420200019
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4140]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Liu Xiu-min,Fu Hua,Zheng Yuan,et al. Ground movement mechanism in tectonic stress metal mines with steep structure planes[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY,2017,24(9):2092-2104.
APA	Liu Xiu-min,Fu Hua,Zheng Yuan,Xia Kai-zong,&Chen Cong-xin.(2017).Ground movement mechanism in tectonic stress metal mines with steep structure planes.JOURNAL OF CENTRAL SOUTH UNIVERSITY,24(9),2092-2104.
MLA	Liu Xiu-min,et al."Ground movement mechanism in tectonic stress metal mines with steep structure planes".JOURNAL OF CENTRAL SOUTH UNIVERSITY 24.9(2017):2092-2104.