A study on the stability of a big-section tunnel in karst area

被引：0
|
作者：
Ma, H. [1 ]
Chen, S. G. [1 ]
Hu, C. [1 ]
Tan, X. R. [1 ]
机构：
[1] Southwest Jiaotong Univ, Chengdu, Sichuan, Peoples R China
来源：
ADVANCES IN DISCONTINUOUS NUMERICAL METHODS AND APPLICATIONS IN GEOMECHANICS AND GEOENGINEERING | 2012年
关键词：
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
A modeling methodology is suggested to model tunnel process including excavation and rock support using the two dimensional distinct element code UDEC. A load ratio is proposd and involved in the methodology, which is defined as the excavation load released before a specific tunneling procedure divided by a finally load released. The methodology is then applied to assess the stability of Doupengshan tunnel, which has a big section and is located in karst area. It was found that the designed rock support is capable of assuring the tunnel stability.
引用
收藏
页码：315 / 320
页数：6
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