平缓反倾采动滑坡形成的地质力学模式研究——以贵州省马达岭滑坡为例

doi:10.13722/j.cnki.jrme.2016.0106

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Abstract Madaling landslide is a typical mining induced landslide，of which the natural slope is a gently counter- inclined layered structure. In this paper，the physical modeling method was used to study the deformation process of the mining slope under the two layer mining condition and the geomechanical mode of the slope deformation was analyzed. After the coal mining，the stress concentration occurs in the overlying rock of goaf boundary leading to rock cracking initially mainly in the vertical direction. The mining fissures expand to the centre of goaf and gradually form the abscission fissures and shear fissures. After the deformation becomes stable，the overlying rock strata of goaf were bended to form a subsidence area on the surface. Due to the pushing of goaf overburden subsidence，the outer slope slides along the coal seam resulting in the uplift of the lower part of the slope. The geo-mechanical model of this kind slope deformation and failure can be divided into the bending-tensile (“supergene” transformation stage)，plastic flow-tensile and creep-tensile three stages.

Key words： slope engineering mining landslide deformation process geomechanical model physical modeling

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	Articles by authors
	ZHAO Jianjun1
	MA Yuntao1
	LIN Bing1
	LAN Zhiyong1
	2
	SHI Wenbing1

Cite this article:

ZHAO Jianjun1,MA Yuntao1,LIN Bing1, et al. Geomechanical mode of mining landslides with gently counter-inclined bedding─a case study of Madaling landslide in Guizhou Province[J]. , 2016, 35(11): 2217-2224.

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http://rockmech.org/EN/10.13722/j.cnki.jrme.2016.0106 OR http://rockmech.org/EN/Y2016/V35/I11/2217

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