|
|
|
| Analyses and Treatment of Geological Disaster of Heavy Water Bursting to Large Tunnel in Complex Geological Condition Zone |
| YE Qiao |
| Yuxi - Mengzi Railway Construction Project Headquarter, CREC, Tonghai, Yunnan 652700, China |
|
|
|
|
Abstract Research purposes： The geological condition of Tonghai Tunnel is complex with big amount of bursting - water，so the large -scaled water bursting easily happens in construction. The heavy water bursting happened at PDK 35 + 770 of Tonghai Tunnel portal，so it is necessary to analyze and treat such geological disaster in theory.
Research results ： Through doing study on and analysis of local geological conditions and hydrographic conditions，the measures of blocking with mortar - stopping wall, radial and ahead grouting reinforcement, central draining water by pipe and by - pass pilot tunnel are taken to the flat pilot tunnel on main line，which avoid the risk of water bursting and guarantee the construction safety, resulting in saving the construction cost and time.
|
|
Received: 04 May 2008
|
|
|
|
|
|
[1]铁道第二勘察设计院.新建铁路昆明至河口线玉溪至蒙 自段通海隧道设计图[Z].成都:铁道第二勘察设计院， 2006.
[2]中铁二院工程集团有限责任公司.通海隧道平导涌水处 理紧急预案[Z].成都:中铁二院工程集团有限责任公 司，2007.
[3]TB 10003—2005,铁路隧道设计规范[S].
[4]TB 10204 — 2002,铁路隧道施工规范[S].
|
|
|
|
2008, Vol. 25 
