|
|
|
| Treatment of the Collapse of Gangcheng Tunnel of Taiyuan-Zhongwei-Yinchuan Railway |
| HOU Jun-hong |
| The Third Railway Design and Survey Institute Group Corporation, Tianjin 300251, China |
|
|
|
|
Abstract Research purposes: Gangcheng Tunnel is a single tunnel and double track tunne,l located in the Hengshan County of Shanxi Province, with total length of 4575 m. The collapse happened during the construction of the tunnel,with the inrushmud volume ofabout1 000m3. The buried depth of the tunnel in collapse place was 94 meters, and the maximal ground settlementvolumewas5. 137 m. According to the characteristics of the collapse and inrushmud, the method of " large pipe roof construction plus the upper face grouting in advance " was selected to reinforce the rock stratum aftermaking comparisonwith the ramming pipemethod and freezing method.
Research conclusions:(1) The scheme for treatment of inrush mud and collapse is reasonable. (2) The support in advance along with grouting reinforcement of the inrushmud and collapse areaGangcheng Tunnel is an effective way to treat collapse and inrush mud. (3) The treatment of the collapse and inrush mud of Gangcheng Tunnel shows the geological forecast in advance is essential to the safe construction of tunnel.
|
|
Received: 25 June 2009
|
|
|
|
|
|
[1] 铁道部第二勘测设计院.铁路工程设计技术手册?隧道[K].北京:中国铁道出版社, 1995.
[2] TB 10003)2005,铁路隧道设计规范[S].
[3] TB 10204)2002 /J 163—2002,铁路隧道施工规范[S].
[4] 赵勇,等.我国高速铁路隧道主要技术标准和关键技术[J].铁道经济研究, 2006(3): 19 -21.
|
|
|
|
2009, Vol. 26 
