Failure mechanism recognition and optimum support design of roadway groups in soft and fractured surrounding rock - case study: Paner coal mine

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Failure mechanism recognition and optimum support design of roadway groups in soft and fractured surrounding rock - case study: Paner coal mine
	Lu, Xingli 1; Liu, Quansheng 1; Su, Peifang 2
刊名	DISASTER ADVANCES
	2013
卷号	6 页码:406-414
关键词	Roadway Groups Deformation Characteristics Deformation Mechanism Optimum Support Measures
ISSN号	0974-262X
英文摘要	As increasing number of coal mines turn to deep mining stage, stability control of surrounding rock in deep roadway groups has become a major technical problem. Based on the roadway groups in shaft station of second east mining area, Paner coal mine, the characteristics of deformation split of surrounding rock, failure of supporting structure, and asymmetric deformation mechanism of roadway are analyzed. It is concluded that the soft and fractured surrounding rock, lower supporting intensity, especially the almost orthogonal between strike direction of roadway and direction of maximum horizontal primary stress are the main causes of roadway deformation characterized mainly by wall-to-wall convergence and floor heave. Besides, the asymmetric deformation mechanism of roadway can be explained by the flexural deformation and high-stress squeezing of surrounding rock starting at the position of right sidewall and floor corner of roadway due to the smaller lateral confinement from inclined rock mass structure. Based on the above analysis, a combined multiple-step control countermeasure for roadway groups with soft and fractured surrounding rock are put forward. Moreover, through numerical analysis and field monitor measuring, the control countermeasure is analyzed and verified which indicates that it-is rational and efficient for the stability control of surrounding rock in deep mining engineering.
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
语种	英语
出版者	DISASTER ADVANCES
WOS记录号	WOS:000317246200053
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3434]
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	1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech ; 2.Changjiang Inst Survey Planning Design & Res, Res Ctr Natl Dam Safety Engn Technol
推荐引用方式 GB/T 7714	Lu, Xingli,Liu, Quansheng,Su, Peifang. Failure mechanism recognition and optimum support design of roadway groups in soft and fractured surrounding rock - case study: Paner coal mine[J]. DISASTER ADVANCES,2013,6:406-414.
APA	Lu, Xingli,Liu, Quansheng,&Su, Peifang.(2013).Failure mechanism recognition and optimum support design of roadway groups in soft and fractured surrounding rock - case study: Paner coal mine.DISASTER ADVANCES,6,406-414.
MLA	Lu, Xingli,et al."Failure mechanism recognition and optimum support design of roadway groups in soft and fractured surrounding rock - case study: Paner coal mine".DISASTER ADVANCES 6(2013):406-414.