论复杂地质条件下长大隧道的综合勘察技术

复杂地质条件下长大隧道的勘察工作是设计阶段的重点和难点,应当采用综合的勘察技术手段,包括遥感、地质调查测绘、物探、钻探、各项试验及测试、关键问题专项研究等,查明隧道的主要工程地质条件,并通过综合分析,做出合理的工程地质评价,为设计及施工提供科学指导。

The investigation of long and large tunnels under complex geological conditions is the key and difficult point in the design stage, where comprehensive survey techniques should be adopted, including remote sensing, geological survey and mapping, geophysical exploration, drilling, various experiments and tests, and special research on key problems, so as to find out the main engineering geological conditions of the tunnel. Through comprehensive analysis, it is supposed to make a reasonable engineering geological evaluation, so as to provide scientific guidance for the design and construction.