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在长大隧道施工过程中,由于工程地质条件的复杂性和不确定性,常会出现如塌方、涌水等地质灾害,为了规避这些地质灾害的发生,在施工过程中实施综合地质超前预报就显得十分有必要。本文以宜(昌)—万(州)铁路齐岳山隧道PDK366+020~PDK365+984段为实例,详细介绍地质分析-TSP地震勘探-超前水平钻探相结合的综合地质超前预报方法,结果证明,该方法具有较高的精度和准确度。
Due to the complexity and uncertainty of engineering geological conditions, geological disasters such as landslides and gushing water often occur during the construction of long and narrow tunnels. In order to avoid the occurrence of these geological disasters, it is quite obvious that the implementation of comprehensive geological advance forecast in the process of construction Is necessary. This paper takes the section of PDK366 + 020 ~ PDK365 + 984 of Qiyueshan tunnel of Yichang-Wanzhou Railway as an example to introduce the method of comprehensive geological prediction combining geological analysis, TSP seismic prospecting and advanced horizontal drilling. The results show that, The method has high accuracy and accuracy.