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TSP(tunnel seismic prediction)数据采集质量是保证超前预报准确性的前提条件,为此在前人基础上进一步归纳总结了TSP数据采集应注意的问题,主要分析了炮孔、接收孔以及炮孔-接收孔关系等对TSP数据采集的影响.TSP对预报不良地质体具有良好的效果,本文分别列举了TSP对溶洞、松散破碎带以及软夹层等成功预报案例.通过对比TSP解译结果与隧道开挖实际地质情况发现,相同的岩石特性曲线,对应着不同的地质情况,有的地质情况可能存在重大安全隐患,而通过对该类曲线的分析总结为TSP结果解译提供参考和经验累积,有助于提高解译准确性.
TSP (tunnel seismic prediction) data acquisition quality is a prerequisite to ensure the accuracy of advance prediction. Based on the previous studies, we further summarize the issues that should be paid attention to in TSP data acquisition, and mainly analyze the characteristics of borehole, receiving borehole and shothole- The relationship between the receiving hole and other TSP data acquisition.TSP on the prediction of adverse geological body with good results, this paper lists the TSP of karst caves, loose broken zone and soft sandwiches and other successful forecasting cases.Compared TSP interpretation results with the tunnel open Digging the actual geological conditions found that the same rock characteristics curve, corresponding to different geological conditions, and some geological conditions may exist a major security risk, and through the analysis of these types of curves for the interpretation of TSP results provide reference and experience accumulation, there are Help to improve the accuracy of interpretation.