TRT超前预报技术在TBM施工隧洞中的应用研究

Application Research of TRT Advanced Geological Prediction Method in TBM Tunnel

隧洞施工中超前地质预报关系到工程的安全、质量和进度。TRT7000超前地质预报系统采用三维空间观测方式、锤击震源、无线连接方式,是一种TBM施工工况下隧道施工长距离超前地质预报的优选方法。在TRT7000超前地质预报系统的数据处理过程中,直达波的选取、滤波器设计极为关键,并且应进行多参数分析。最终成果解释应结合各参数的结果及工程地质情况进行综合解释。阐述TRT7000超前地质预报系统的基本原理、数据处理过程中关键参数的选取方法及成果解释的方法。通过某隧道工程实例,验证了该方法的有效性和实用性。

Advanced geological prediction is related to the safety,quality and progress of the project in tunnel construction.The advanced geological prediction system of TRT7000 adopts three-dimensional space observation method,hammer source and wireless connection method.It is one of the preferred methods for Long-distance advanced geological prediction in TBM tunneling.In the data processing of TRT7000 advanced geological prediction system,the selection of direct wave and the design of filter are extremely critical,and multi-parameter analysis should be carried out.The final results should be combined with the results of the various parameters and the engineering geological conditions for a comprehensive interpretation.This paper describes the basic principles of advanced geological prediction system of TRT7000,the selection of key parameters in the data processing process and the method of interpretation of results.Finally,the effectiveness and practicability of the method is verified by an example of a tunnel project.