Bearing behavior of tunnel anchorage in soft rock with an underlying weak interlayer
LI Dongliang1，2，LIU Xinrong1，2，ZHOU Huoming3，WU Xiangchao1，2，3，LI Weishu3，WANG Zhonghao3
(1. School of Civil Engineering，Chongqing University，Chongqing 400045，China；2. Key Laboratory of New Technology for Construction of Cities in Mountain Area，Ministry of Education，Chongqing University，Chongqing 400045，China；3. Chongqing Branch，Yangtze River Scientific Research Institute，Chongqing 400026，China)
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.
李栋梁1，2，刘新荣1，2，周火明3，吴相超1，2，3，李维树3，王中豪3. 下卧软弱夹层的软岩隧道式锚碇承载特性研究[J]. 岩石力学与工程学报, 2017, 36(10): 2457-2465.
LI Dongliang1，2，LIU Xinrong1，2，ZHOU Huoming3，WU Xiangchao1，2，3，LI Weishu3，WANG Zhonghao3. Bearing behavior of tunnel anchorage in soft rock with an underlying weak interlayer. , 2017, 36(10): 2457-2465.
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2017, Vol. 36 
