地形因子对坡脚型地震滑坡运动参数的影响研究

doi:10.13722/j.cnki.jrme.2014.s2.083

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Abstract Slope-toe landslide is a typical disaster induced by the Wenchuan earthquake. The influential factors of topography，including length of sliding surface above slope toe(L′)，landslide gradient()，angle of slope toe() and gradient of landslide accumulation() were considered. The maximum vertical motion distance(Hmax)，maximum horizontal motion distance(Lmax)，horizontal motion distance under the slope toe(L) and equivalent fraction coefficient(Hmax/Lmax) were studied by the orthogonal，range，variance and regression analysis. The L′ is the most important and significant influence factor on Hmax and Lmax which the landslide volume is from 1×104 m3 to 1×106 m3. Among the influence factors on Hmax/Lmax，the is the most important one and the and are the significant influence factors. The is the most important factor on Lmax and L of landslides with the volume more than 1×106 m3 and significant influence factor on L of landslides with volumes more than 1×105 m3. The landslide volumes from 1×104 m3 to 1×106 m3，the topography factors play more consistent role on the factor combinations of the landslide maximum motion parameters，and it is different on the landslides with the volumes more than 1×106 m3. These results could provide references for determining the influence and significant of topography factors on the motion parameters of slope-toe landslides，and it is a practical significance to the prevention and mitigation of slope-toe landslides.

Key words： slope engineering slope-toe landslide topography factor motion parameter

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	Articles by authors
	FAN Xiaoyi1
	2
	TIAN Shujun1
	DUAN Xiaodong1
	ZHANG Youyi1

Cite this article:

FAN Xiaoyi1,2,TIAN Shujun1, et al. STUDY OF TOPOGRAPHY FACTORS INFLUENCE ON MOTION PARAMETERS FOR SEISMIC SLOPE-TOE LANDSLIDES[J]. , 2014, 33(S2): 4056-4066.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.083 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/4056

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