TSP在隧道超前预报中的应用效果分析

在隧道工程中,为了能够安全、顺利地进行隧道建设,对隧道周边以及掌子面前方的地质构造进行探测是非常必要的,目前运用TSP(Tunnel Seismic Prediction)进行超前预报是准确而又高效的方法之一。本文在介绍了TSP系统的基本原理的基础上,设计了不同的观测系统对隧道进行探测,通过对实际采集的资料进行处理、解释以及对重叠段的对比分析,验证了TSP在隧道探测中的有效性和可靠性。此外,分析不同的观测系统可以发现对于小偏移距的观测系统有利于获得隧道周围岩体的地质信息,而靠近掌子面的观测系统则更有利于获得掌子面前方岩体的地质信息,这些结论可以为TSP在实际隧道中的应用提供相应的理论依据。

Prediction of Geological Structures Ahead of the Tunnel Using TSP

In order to keep up with operational safety and efficiency demands of modern tunnel infrastructure,there is a need to carry out an effective tunnel prediction method to detect expected lithological and structural heterogeneities ahead of tunnel face.Nowadays TSP（Tunnel Seismic Prediction） is regarded as a correct and high-effective method.In this paper,we introduced the basic principles of TSP and then designed different observing systems for seismic prediction in the tunnel.Through the field data collection processing,interpretation and analysis of the comparison of the overlapping segments,we verified the validity and reliability of TSP in tunnel prediction.Besides,after analyzing data collected by different observing systems,we found that observing system with small offset is conducive to the detailed knowledge of rock mass characteristics around the tunnel,while the one close to the tunnel face benefits the rock condition ahead of the tunnel face.These conclusions can provide a theoretical basis for TSP application in tunnel advance prediction.