在隧道施工安全要求较高的今天，由于超前地质预报占用的施工时间太长，在施工工期比较紧张且工程顺利的时候就经常忽略地质预报工作。为了保证隧道施工的安全，结合工程实践，提出通过改进隧道超前地质预报方法，尽可能缩短超前地质预报在隧道施工占用的时间，提高超前地质预报效率。

 At present, the requirements for safety in tunnel construction are strict. Due to the fact that advance geological forecast takes a long time, geological forecast is always neglected in the event of limited construction period and smooth performance of a project. In order to ensure the safety in tunnel construction, the authors improve the advance geological forecast methods based on practices in construction. After the optimization, the time required by advance geological forecast is minimized and the efficiency of advance geological forecast is raised.