Method for monitoring fault displacement in tunnel construction

The invention discloses a method for monitoring fault displacement in tunnel construction. The method comprises the following steps: step 1, determining an embedding position and an embedding depth of an eddy current sensor in a tunnel; 2, drilling a fault drill hole to a required depth, and setting a monitoring site; step 3, laying a waterproof sleeve around the monitoring site; 4, a probe and a metal conductor are embedded in the waterproof sleeve, and the probe is fixed to the inner wall of the drill hole through a bolt; and 4, connecting a lead of the probe to data acquisition equipment, and arranging a shielding case. 本发明公开了一种隧道施工中断层位移的监测方法，包括以下步骤：步骤一：确定电涡流传感器在隧道中的埋设位置和埋设深度；步骤二：钻取断层钻孔至所需深度，设置监测位点；步骤三：监测位点周围铺设防水套管；步骤四：在防水套管内分别埋入探头与金属导体，采用螺栓将探头固定至钻孔的内壁上；步骤四：将探头的导线连接至数据采集设备上，设置屏蔽罩。