在平川隧道施工过程中,采用GPR法探测隧道,预测掌子面前方围岩的地质情况、不良地质体的位置、工程性状、水文地质状况等信息.分析相关施工段,从而判断隧道围岩的类别,并根据围岩的稳定性,改进支护参数,使得施工更为安全,施工进度得到保证.通过对平川隧道的施工进行指导,确保隧道施工安全进行,得出的结论可为类似条件的隧道施工起参考作用.%In the process of Pingchuan tunnel construction, GPR method is used to detect the tunnel, including predicting the geological conditions of the surrounding rock in front of the tunneling face, the position of the adverse geological body, engineering properties, hydrogeological conditions and other information. By analyzing relevant construction period, the category of the surrounding rock can be determined, and according to the stability of surrounding rock, the supporting parameters are improved, so as to make the construction safer, and ensure the construction progress. Through the guidance of the construction of Pingchuan Tunnel, the tunnel construction security can be ensured, and the conclusion can be reference for the similar conditions of tunnel construction.
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