下卧软弱夹层的软岩隧道式锚碇承载特性研究

doi:10.13722/j.cnki.jrme.2017.0698

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Abstract To study the bearing behavior of tunnel anchorage in soft rock with an underlying weak interlayer，a tunnel anchorage model with the size ration of(1∶10) to a bridge?s tunnel anchorage was used for field test. The loading，creeping and failure tests were carried out to the tunnel anchorage model. The tunnel anchorage in soft rock with an underlying weak interlayer has the carrying capacity and the long-term stability according to the research results. The curves of surface settlement of the rock behind the tunnel anchorage show the shape of “M” and the curves of surface settlement of the rock of the tunnel anchorage show the shape of “N”. The surface settlement of the surrounding rock reduced gradually from the front to the rear of the tunnel anchorage.

Key words： tunnelling engineering weak interlayer tunnel anchorage mudstone bearing behavior model test

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	Articles by authors
	LI Dongliang1
	2
	LIU Xinrong1
	2
	ZHOU Huoming3
	WU Xiangchao1
	2
	3
	LI Weishu3
	WANG Zhonghao3

Cite this article:

LI Dongliang1,2,LIU Xinrong1, et al. Bearing behavior of tunnel anchorage in soft rock with an underlying weak interlayer[J]. , 2017, 36(10): 2457-2465.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2017.0698 OR http://www.rockmech.org/EN/Y2017/V36/I10/2457

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