提高TSP预报准确率及资料快速分析方法研究

Methods to improve TSP forecast accuracy and to data rapid analysis

近年来,TSP(Tunnel Seismic Prediction)隧道地震预报法已经普遍运用于隧道建设中,在预防隧道开挖时发生地质灾害方面发挥了显著作用,已有不少成功案例,但也存在一些漏报和错报。文章从分析TSP法地质预报存在的缺陷及在数据采集过程中可能遇到的各种干扰入手,总结和补充了如何避免或降低各种干扰可采取的应对措施,并通过不断对比预报情况与实际围岩开挖情况,进行数据反分析,积累了一定的数据处理参数设置经验。同时,通过不断分析、总结TSP法对如破碎带、富水区等不良地质体所表现出的不同特性,提出了资料解译时的快速分析方法,并运用到实际预报工作中,取得了较好的效果。

In recent years,TSP has more and more widely been used in tunnel construction. This method plays a significant role in preventing geological disasters in tunneling. In practice, many successful achievements have been obtained. However,many engineers also have made a lot of omissions and errors in their work. Therefore,how to improve the TSP forecast accuracy is quite important. Based on the analysis possible interference in the defective method of TSP,geological forecast and data collection were carried out in this work. We also comprehensively summarize and complement the various response measurements to avoid or reduce various interferences,in order to improve the quality of the original data. We predict and make geological records at the same time,and compare them. When the prediction does not come with the actual,reprocess the data,until the prediction is consistent with the actual. This job let us find a more suitable parameter,provide us with some experience for future data processing. At the same time,we analyze and summarize constantly a variety of geological structure reflection characteristics. Combining with many examples of prediction,we proposal a rapid analysis method in performing the data interpretation. The method is proved effective in practical application and is of a good practicability.