长大隧道中涌(突)水处理施工技术

Construction Technology for Dealing with Water Gushing in Long and Large Tunnels

铁峰山隧道部分地段含水丰富,部分地段突水、突泥现象严重,针对此情况,施工过程中采用TSP-203物探与超前地质钻探相结合的超前地质预报方案进行地质预报,对于不同的出水方式分别采用裂隙出水点注浆与溶洞涌水注浆的施工方案,介绍了相关的工艺流程、关键技术和注意事项,对今后类似隧道工程施工有借鉴意义。

Owing to the fact that a few sections of the Tiefengshan Tunnel are abundant in groundwater, some of which are even serious in water gushing or silt gushing, the TSP-203 Physical Probe, in combination with the advanced geological drilling forecast plan, is adopted for forecasting geological conditions ahead in the course of construction, with point-slip-casting applied to water gushing from cracks, and slipcasting applied to water gushing from karst caves. The corresponding processes, key techniques, and points for attention are detailed in the paper, which may serve as a reference for similar projects in the future.