气候变化领域集成服务门户(CCPortal): Inclination effect of coal mine strata on the stability of loess land slope under the condition of underground mining

CCPortal

DOI	10.1007/s11069-020-04193-4
	Inclination effect of coal mine strata on the stability of loess land slope under the condition of underground mining
	Sun X.-Y.; Ho C.-H.; Li C.; Xia Y.; Zhang Q.
发表日期	2020
ISSN	0921030X
起始页码	833
结束页码	852
卷号	104 期号:1
英文摘要	The coal seam mining-induced characteristics of overlying strata fracture and surface subsidence are tested and numerically analyzed using the similar materials. Two mining models were conducted in a laboratory with two different rock orientations and slopes to simulate the stability conditions and driving conditions of the loess land slope of under the guides of the V-shaped law. Given a 30° dip angle of coal seam in the Model 1, the results show that the loess landslide on top of inclined rock layers is in the state of critical instability when working face advances to 100 m. Whereas, given a 30° dip angle of coal seam in the Model 2, the loess landslide on top of anti-inclined rock layers is in the state of critical instability when working face advances to 120 m. Numerical analysis using a discrete element method was performed to compare the analysis results with laboratory findings. Based on the test and numerical analysis results both indicate that the land sliding along loess land slope are most likely be triggered on inclined rock layers than anti-inclined rock layers when an underground mining activity begins to excavate. © 2020, Springer Nature B.V.
关键词	Inclination Loess landslide Numerical simulation Similar material simulation The “V” glyph rule
英文关键词	coal mine; coal seam; computer simulation; landslide; loess; mining; slope stability
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205959
作者单位	College of Geology and Environment, Xi’an University of Science and Technology, Xi’an, 710054, China; Department of Civil Engineering, Construction Management, and Environmental Engineering, Northern Arizona University, Flagstaff, AZ 86011, United States; Key Laboratory of Mine Geological Hazards Mechanism and Control, Xi’an, 710054, China
推荐引用方式 GB/T 7714	Sun X.-Y.,Ho C.-H.,Li C.,et al. Inclination effect of coal mine strata on the stability of loess land slope under the condition of underground mining[J],2020,104(1).
APA	Sun X.-Y.,Ho C.-H.,Li C.,Xia Y.,&Zhang Q..(2020).Inclination effect of coal mine strata on the stability of loess land slope under the condition of underground mining.Natural Hazards,104(1).
MLA	Sun X.-Y.,et al."Inclination effect of coal mine strata on the stability of loess land slope under the condition of underground mining".Natural Hazards 104.1(2020).