EXPERIMENTAL STUDY ON THIN FLEXIBLE TUNNEL SUPPORT SYSTEM
EXPERIMENTAL STUDY ON THIN FLEXIBLE TUNNEL SUPPORT SYSTEM
复制标题
薄型柔性隧道支护系统试验研究
DOI：
10.2208/jscej.1985.358_47
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
A. Yashima
中科院分区：
文献类型：
--
作者：
T. Adachi;T. Tamura;A. Yashima
The mechanical efficiency of a thin flexible tunnel support system such as shotcrete lining and rock bolts is investigated on the basis of experimental works. At first, model tests of tunnel excavation in which shotcrete lining and rock bolts were simulated by thin papers were carried out in a dry sand ground. It was found out that even if so flexible thin paper closed ring lining has a remarkable effect on the tunnel stability and that the effect of rock bolts appears only when they are placed to get into the outside of a plastic zone developed in the surrounding ground. A circular tunnel excavation was simulated by shrinking a metal ring in an aluminum rod mass and the development of a loosened zone in the ground due to tunneling was discussed. (Author abstract)
