Discussion on the Construction Techniques of Taoshuping Tunnel in Immature Fine Sandstone Stratum with Rich Water
(1 Project Department of Lanzhou-Chongqing Railway, China Railway No.21 Construction Bureau Group Co., Ltd., Lanzhou 730000;
2 Lanzhou-Chongqing Railway Co., Ltd., Lanzhou 730050;
3 Project Department of Lanzhou-Chongqing Railway,China Railway No.18 Construction Bureau Group Co.,Ltd, Wudu 746000)
Abstract：
It is very seldom for a tunnel to encounter the immature fine sandstone stratum with rich water, of which the lithology is extremely unstable after tunnel excavation. This paper analyzes and discusses the construction techniques of Taoshuping tunnel Lot LYS-7 on Lanzhou-Chongqing Railway embedded in fine sandstone stratum with rich water in terms of the project profile, construction method, existing problems and countermeasures.
LI Shi-Cai- 1,
Liu-Zhong-Ren-2,
ZHENG Wen-Jun-3
.Discussion on the Construction Techniques of Taoshuping Tunnel in Immature Fine Sandstone Stratum with Rich Water[J] MODERN TUNNELLING TECHNOLOGY, 2011,V48(2): 120-124
2011, Vol. 48 