TSP超前地质预报在膨胀岩隧道施工中的应用

TSP Application for Tunnel Construction in Expansive Rock

隧道施工特别是复杂地质条件下的施工面临着很多地质灾害问题,如突水突泥、断层破碎带的塌方等,准确地进行隧道超前预报,能有效降低施工风险,确保施工安全和进度,减少工程事故的发生。针对云桂铁路建设中那达1号膨胀岩隧道工程,利用TSP超前地质预报技术,并结合隧道工程地质情况,通过准确预报工作,阐述了TSP超前地质预报的基本原理和方法,探讨了该技术在那达1号隧道施工过程中的应用效果,并将预报结果与实际工程进行对比,验证了该技术的可靠性。

Geological hazard accidents often occur during the tunnel constructions especially in the condition of complex geolo- gy, such as the water and mud rush in karst region and the landslip of the faulted zone. The construction risk in tunnel is re- duced effectively by the accurate advanced geological forecast, the construction security and the progress are guaranteed and the project accident＇s occurrence is reduced. According to Nada tunnel engineering of YunGui railway in Guangxi province, based on the correct geology forecast, the basic principle and method of TSP is introduced. And its application effect is discussed. Then by compared the forecast results with the actual engineering, the method of TSP in advance geology forecast is proved reliably.