别岩槽隧道大型突水溶腔综合地球物理特征分析

别岩槽隧道为建设中的复杂岩溶风险隧道，曾发生溶腔突水事故，该隧道在勘测设计阶段采用了综合物探技术对隧道不良地质体进行普查，在隧道施工阶段又采用超前地质预报手段配合施工掘进。本文通过该大型突水溶腔地面及洞内综合物探异常的分析，总结出如何利用综合地球物理特征，提高在复杂岩溶隧道的勘测设计及施工中对该类危害巨大的不良地质体的认知能力，从而指导施工，最大程度规避地质灾害。

Analysis of the Comprehensive Geophysical Characteristics of the Large-scale Cave with an Outburst of Water in the Bieyancao Tunnel

The Bieyancao tunnel being constructed is of tunnel danger with its complicate karst,in which a geological disaster once occurred because of the accident of water bursting.The synthetic geophysical method was applied to broad-survey the bad geological body during the field investigation and engineering designing.The geological forecast methods like the TSP and the ground penetrating radar were used to cooperate with the tunneling.This paper analyzes the comprehensive geophysical characteristics of the large-scale cave and summarizes how to use these characteristics to predict the adverse geological condition,to raise our ability to know about where a big harm geological condition would likely occur and to avoid the potential risk in the tunneling.