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地震波反射超前预报方法(TSP)是利用人工激发的地震波在不均匀地质体中产生的反射波特性进行超前地质预报的,因其预报距离长而被广泛应用。但从具体应用效果来看,还存在着应用成本高、洞内操作工序繁锁、激发点炮孔破坏衬砌、使用炸药破坏性强且有安全隐患等问题。为了解决常规TSP技术的不足,提出了将机械能无损探测技术运用到隧道地质超前预报中,利用稳定可控安全的机械能量来激发地震波,消除了由于炸药爆炸激发地震波过程中存在的安全隐患。并研究了激发点和接收点位置合理布置方式,使地震反射波在第一时间到达接收孔,从而减少杂波干扰,提高预报准确性。
Seismic wave reflection advanced prediction method (TSP) is the use of artificial excitation of seismic waves in the uneven geology of the reflected wave characteristics of advanced geological prediction, because of its long-term prediction and has been widely used. However, from the perspectives of specific application effects, there are still problems such as high application costs, complicated operation procedures in the tunnel, blasting of linings by the excitation points, destructive use of explosives and potential safety problems. In order to solve the shortcomings of conventional TSP technology, the paper presents the application of mechanical energy non-destructive detection technology to the advanced prediction of tunnel geological conditions. The stable and controllable mechanical energy is used to excite the seismic waves and eliminate the potential safety hazard caused by the explosions. The reasonable arrangement of the excitation point and the receiving point is studied, so that the seismic reflection wave reaches the receiving hole at the first time, so as to reduce the clutter interference and improve the prediction accuracy.