瞬变电磁仪法与超前水平钻孔法在隧道施工中的综合运用

Comprehensive Application of Transient Electromagnetism Method and Advanced Horizontal Drilling Method in Tunnel Construction

富水地层隧道施工易引发涌水、涌泥地质灾害,威胁施工人员生命安全,阻碍工程的顺利进行。单一的超前地质预报方法难以准确、全面的对掌子面前方地质情况进行预报,本文根据四川省南充~大竹~梁平高速公路铜锣山隧道工程地质条件,科学地运用瞬变电磁仪法与超前水平钻孔法来综合分析并预测前方地质状况,经实践检验分析和预测的结果可以有效规避工程地质灾害提供可靠的地质参考依据。

The construction of water-rich stratum tunnel is easy to cause gushing water, mud flushing and other geological disasters,threatening the safety of construction personnel and hindering the smooth progress of the project. The advanced geological prediction method only is difficult to accurately and comprehensively predict the geological situation. According to the engineering geological conditions of the Tonggongshan tunnel of Nanchong-Dazhu-Liangping Expressway in Sichuan Province, this paper scientifically uses the transient electromagnetic method and the advanced horizontal drilling method to comprehensively analyze and predict the geological status of the front. The results of practical test analysis and prediction can provide a reliable basis to effectively avoid the geological hazards in contraction.