滑坡区隧道自锚式加固结构受力变形研究

doi:10.13722/j.cnki.jrme.2015.1727

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Abstract The self-anchored strengthening structure was put forward to solve the reinforcement issue of tunnels located in the deep landslide，in this paper，stress and deformation of the entire reinforcing structure under the interaction of landslide soil were studied. A physical and mechanical calculation model was established and the matrix transfer method was adopted to establish the calculation formulas of internal force and deformation. The internal force and displacement distribution characteristics of the reinforced structure were obtained by MTLAB programming calculation. Numerical simulation calculation and model test were carried out to verify the theoretical results. The results indicate that：(1) The anti-slide sustaining pile and anchor can control the displacement of the tunnel well and improve the stress state of the tunnel；(2) In the design， the angle between the anchor cable and horizontal plane should be minimized，and the design anchor force values in the scope of the landslide boundary should be increased；(3) The internal force and deformation results of numerical simulation calculation and physical model test are in good agreement with the theoretical calculation results，which verify the correctness of the theoretical calculation method.

Key words： slope engineering anti-slide sustaining pile anchor strengthening structure matrix transfer method numerical simulation physical model test

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	Articles by authors
	YIN Jing1
	DENG Ronggui1
	LI Kaitian1
	CHEN Bajin1
	SUN Chunping2

Cite this article:

YIN Jing1,DENG Ronggui1,LI Kaitian1, et al. Stress and deformation of self-anchored reinforcement structures for landslide tunnels[J]. , 2016, 35(10): 2062-2079.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2015.1727 OR http://www.rockmech.org/EN/Y2016/V35/I10/2062

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