TSP在隧道超前预报中的应用效果分析
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摘要
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。
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.
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.
引文
[1]王兴泰.工程与环境物探[M].北京:地质出版社,1993.
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[4]Dickmann T,Sander B.Drivage concurrent tunnel seismic prediction[J].Felsbau-rock and Soil Engi-neering,1996,14(1):406～411.
[5]王小安.TSP观测系统处理参数的研究[J].工程地球物理学报,2013,10(2):242～247.
[6]曾昭磺.隧道地震反射波法超前预报[J].地球物理学报,1994,37(2):218～230.
[7]Bruckl E,Chwatal W,Dolzlmuller J,et al.A study of the application of VSP to exploration ahead of a tunnel[J].International Journal of Rock Mechanics and Mining Sciences,2001,38(6):833～841.
[8]Inazaki T,Isahai H,Kawamura S,et al.Stepwise application of horizontal seismic profiling for tunnel prediction ahead of the face[J].The Leading Edge,1999,18(12):1429～1431.
[9]李政,苏有财,卢松.综合法超前地质预报在特长隧道中的应用[J].工程地球物理学报,2011,8(1):78～81.
[10]Zhao Y G,Jiang H,Zhao X P.Tunnel seismic tomography method for geological prediction and its application[J].Applied Geophysics,2006,3(2):69～74.
[2]陈建峰.隧道施工地质超前预报技术比较[J].地下空间,2003,23(1):5～16.
[3]宁刚,沙镇海,韩永琦.地震地质超前预报技术对后山坪隧道富水性的成功预报[J].工程地球物理学报,2011,8(5):600～604.
[4]Dickmann T,Sander B.Drivage concurrent tunnel seismic prediction[J].Felsbau-rock and Soil Engi-neering,1996,14(1):406～411.
[5]王小安.TSP观测系统处理参数的研究[J].工程地球物理学报,2013,10(2):242～247.
[6]曾昭磺.隧道地震反射波法超前预报[J].地球物理学报,1994,37(2):218～230.
[7]Bruckl E,Chwatal W,Dolzlmuller J,et al.A study of the application of VSP to exploration ahead of a tunnel[J].International Journal of Rock Mechanics and Mining Sciences,2001,38(6):833～841.
[8]Inazaki T,Isahai H,Kawamura S,et al.Stepwise application of horizontal seismic profiling for tunnel prediction ahead of the face[J].The Leading Edge,1999,18(12):1429～1431.
[9]李政,苏有财,卢松.综合法超前地质预报在特长隧道中的应用[J].工程地球物理学报,2011,8(1):78～81.
[10]Zhao Y G,Jiang H,Zhao X P.Tunnel seismic tomography method for geological prediction and its application[J].Applied Geophysics,2006,3(2):69～74.
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