According to field reconnaissance and geo-environmental problems in the mining area, the main factors affecting the slope stability are summarized, the slope deformation mechanism is analyzed, and the future deformation range is predicted. Through investigating the subsidence area within the mine museum-accelerator factory and the landslides on the west side of the museum, main factors causing the geo-environmental problems in the mining area are analyzed. The intrinsic factor is the own features of the slope and the external factors are long-term vibration and heaped load. On this basis, the slope deformation mechanism is analyzed, and slope deformation is divided into the following four phases nurturing, tensioning, shearing and sliding. Furthermore, the future landslide deformation range is predicted, which shows that there’s no wide range sliding and the deformation is still in the first two phases. Finally, control measures are proposed to ensure the slope stability.
Key words
goaf /
high rock slope /
geo-environmental problems of mine /
deformation mechanism
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References
[1] YOSHIDA R T, CLIFTON A W, MCCLARTY D VB. Stability of a Flood Diversion Channel Constructed through Mine Spoil[C]∥Canadian Geotechnical Society. Proceedings of the 45th Annual Candadian Geotechnical Conference, Vancouver, September 27-29,1993:503-504.
[2] 汤伏全. 采动滑坡的机理分析[J]. 西安矿业学院学报, 1989, (3): 32-36.(TANG Fu-quan. Mechanism Analysis of Landslide Caused by Mining[J]. Journal of Xi’an Mining Institute, 1989, (3): 32-36.(in Chinese)
[3] 林叔中. 地下采动山体变形活动的模型实验[J]. 西安地质学院学报, 1989, 11(4): 70-79.(LIN Shu-zhong. A Modeling Research into Slope Deformation Activities Associated with Underground Mining[J]. Journal of Xi’an College of Geology, 1989, 11(4): 70-79.(in Chinese)
[4] 房定旺. 采空区上覆山体的滑坡机理及其工程中的应用[J]. 中国矿业, 1994, 3(2): 32-37.(FANG Ding-wang. Mechanism of Mountain Landslip above Mined-out Area and Its Application[J]. China Mining Magazine, 1994, 3(2): 32-37.(in Chinese)
[5] 孔宪立, 胡德富. 采空区地表斜坡变形破坏类型及其运动机制[J]. 同济大学学报, 1995, 23(3): 247-252.(KONG Xian-li, HU De-fu. Deformation and Failure of Slope above Goaf and Its Moving Mechanism[J]. Journal of Tongji University, 1995, 23(3): 247-252.(in Chinese)
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