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隧道施工中,充分应用先进的地球物理勘探技术预报隧道掌子面前方的地质状况,能有效地避免事故的发生。地质雷达以其操作方便、对施工影响小、分辨率高、图像清晰等优点,在隧道短期地质超前预报中被广泛应用。本文在介绍地质雷达技术的工作原理及资料处理的基础上,应用地质雷达技术对叙大铁路隧道掌子面进行探测,并结合现场地质情况成功预测了掌子面前方的地质状况,对隧道的安全施工具有指导意义。
In tunnel construction, the application of advanced geophysical prospecting technology to forecast the geological conditions in front of the tunnel face can effectively prevent the accident from happening. Geological radar is widely used in the short-term geological advance prediction of the tunnel due to its advantages of convenient operation, little impact on the construction, high resolution and clear image. Based on the working principle and data processing of GPR technology, this paper applies the GPR technology to detect the palm face of the XU Shadai Railway Tunnel. The geological conditions in front of the face of the tunnel are predicted in combination with the geological conditions of the tunnel. Safe construction is instructive.