我单位1台阿特拉斯凿岩台车在巷道掘进施工中,遇到石质破碎及裂隙扩展现象。在排险不及时、锚网喷未紧跟作业面的状况下,发生小面积巷道塌方,将钻臂瞬间砸断,使设备无法工作。该凿岩台车钻臂主要由后臂、延伸筒、中臂、前臂和推进梁等组成,如图1所示。现将该凿岩台车钻臂损坏现场救援与修复方案介绍如下。一、现场救援事故发生后,操作人员首先要做到以下几点:第一,通知施工分队, I unit 1 Atlas drilling rig in the roadway construction, encountered rock crushing and crack expansion phenomenon. In the risk is not in time, the anchor net spray is not close to the operating conditions, the occurrence of small area roadway landslides, the boom instantly smashed, so that equipment can not work. The drilling rig drilling arm mainly by the rear arm, extension tube, the arm, forearm and propulsion beam and other components, shown in Figure 1. Now the drilling rig damaged drilling site rescue and repair programs are described below. First, the scene after the rescue accident, the operator must first do the following: First, notify the construction team,