DOI: 10.1007/s11069-020-04193-4
论文题名: Inclination effect of coal mine strata on the stability of loess land slope under the condition of underground mining
作者: Sun X.-Y. ; Ho C.-H. ; Li C. ; Xia Y. ; Zhang Q.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 104, 期: 1 起始页码: 833
结束页码: 852
语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168758
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
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]. Natural Hazards,2020-01-01,104(1)