水利水电技术2012，Vol.43Issue(4)：57-60,72,5.
富水地区隧洞衬砌开裂的外水压力原因分析
Analysis on tunnel lining cracking caused by external water pressure in water-rich area
崔炜 1朱新民 1朱银邦 1曹小武 2李敏1
作者信息
- 1. 中国水利水电科学研究院,北京 100038
- 2. 深圳市东江水源工程管理处,深圳广东518036
- 折叠
摘要
Abstract
During the maintenance of a free-flow tunnel built in a water-rich area, severe cracks of the concrete lining with continuous disengagement between both the lining and the surrounding rock are found; for which, the seepage and stress field around the tunnel are simulated herein with the 3-D finite element method in accordance with variation process of the seepage field. The result shows that the external water pressure is possibly to be the cause of the cracking. Therefore, the relevant treatment measures and suggestions of lowering the external water pressure and tension stress of the lining are put forward. The in situ observation shows that the calculation scheme given herein and the results are reasonable.关键词
隧洞/裂缝/外水压力/有限元法Key words
tunnel/ crack/ external water pressure/ finite element method分类
建筑与水利引用本文复制引用
崔炜,朱新民,朱银邦,曹小武,李敏..富水地区隧洞衬砌开裂的外水压力原因分析[J].水利水电技术,2012,43(4):57-60,72,5.
