Pressure relief drilling (PRD) is a frequently-used measure in underground coal mine to control and prevent rock burst, which achieved the purpose of pressure relief by constructing PRD holes at the side of roadway. But up to now PRD is only used to achieve the pressure relief purpose, the important indicative information occurred in the process of drilling construction are all ignored. This paper innovatively put forward a new measurement method for monitoring-while-drilling (MWD) by arranging microseismic (MS) system beside the PRD hole, the MS system pick up vibration signals during PRD hole construction process and achieved excellent application results. The monitoring data can express the depth of PRD hole, identify and record drilling dynamic phenomena such as sticking drilling and vibration events, reflect the stress concentration degree in different depths, and evaluate pressure relief effect of PRD. The measurement method makes full use of PRD hole construction and achieves the aim of “one hole and multi-purpose”.

泄压钻进（PRD）是地下煤矿中常用的控制和防止岩爆的措施，其通过在巷道侧面建造PRD孔来达到泄压的目的。但是到目前为止，PRD仅用于实现卸压目的，在钻井施工过程中发生的重要指示信息都被忽略了。本文通过在珠三角孔旁设置微震（MS）系统，创新性地提出了一种随钻监测的新测量方法，该系统可以在珠三角孔施工过程中拾取振动信号，取得了良好的应用效果。监控数据可以表达PRD孔的深度，识别并记录钻进动态现象，例如粘钻和振动事件，反映不同深度的应力集中程度，并评估PRD的卸压效果。该测量方法充分利用了珠三角孔的构造，达到了“一孔多用”的目的。