绕射波在掘进巷道中超前探测小构造的应用

便携式矿井探测仪是应用绕射波来超前探测巷道掌子面前方小构造的,在速度低于上下围岩的中等速度的特定层位中,地震波将在前方的小断层或小构造处反射,以绕射波形式返回到检波器,其最远的探测距离达184m,成为在掘进巷道中预测预报的有效辅助工具。

The Application of Diffracted Wave in the Advance Detection of the Small Structure in the Tunnelling

The portable mine detector,which is used to make advance detection of the front small structure of the mining faces by utilizing the diffracted wave,has become an effective auxiliary tool for the forecasting in the tunnelling.In the special horizons,with the speed below the medium one of the upper and lower wall rocks,the seismic wave will be reflected in the front small faults or small structures and return to the detector with the form of the diffracted wave,its longest detecting distance had reached 184 meters.