坡顶超载下加筋三维网–锚杆防护边坡的模型试验

doi:10.13722/j.cnki.jrme.2019.0556

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Abstract In order to explore the mechanical characteristic of slope under flexible protection，the soil slope model under reinforced three-dimensional mat -anchor protection was designed and made. The earth pressure cells，axial force sensors，dial indicators and other components were set inside and outside the model. Various stages of uniform loads were applied to the top of slope to test the development of stress，deformation and anchor axial force. Finally，the mechanism for flexible protected slope was discussed. The results show that the deformation and bearing capacity of slope under overloading condition have experienced three stages，which is elastic compression，bearing capacity development and yield failure. The lateral displacement mode of the slope surface was firstly “concave in the middle-upper part，convex in the lower part”，and then changed to “integral convexity” with the increase of load. The lateral deformation of the inner slope was mainly distributed near the middle-upper part of the slope surface，and the deformation contour was in circular-arc shape. The vertical deformation of the slope surface mainly occurred in the upper middle part of the slope. The vertical deformation of the inner slope mainly distributed directly below the loading zone. Under overloading on slope top，the upper anchor worked first，and its force was also greater than that of the middle and lower anchors. The strength design of the anchor should be in a progressive way.

Key words： slope engineering flexible protection reinforced three-dimensional mat anchor；model test

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	Articles by authors
	HE Fan1
	LIU Ze1
	CHEN Li1
	LOU Huafeng2

Cite this article:

HE Fan1,LIU Ze1,CHEN Li1, et al. Model test on reinforced three dimensional mat-anchor protected slope under overloading on slope top[J]. , 2020, 39(S1): 2665-2673.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2019.0556 OR https://rockmech.whrsm.ac.cn/EN/Y2020/V39/IS1/2665

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