【摘要】 在岩溶地区修建隧道,经常会遇到溶洞、暗河、突水、突泥等地质灾害,给施工带来巨大损失。介绍了TGP系统的基本工作原理、数据采集和处理过程。与其它预报方法相比,TGP在准确性和预报距离以及可操作性等具有一定的优势,本文基于TGP系统对城(口)万(源)快速公路通道八台山隧道进口避难通道溶洞进行了预报,通过TGP系统软件得到深度偏移图、同侧综合预报成果图、3D横断面扫描图等,通过分析波速、反射界面等,均证实了有溶洞存在,仪器测出的各项数据相互验证,具有一定的互补性,同时也具有一定的准确性。对照实际开挖情况,验证分析了该系统的实用性和可信性以及在指导施工方面所起的重要作用,这对于促进TGP系统在我国工程界的运用起到一定的推动作用。更多还原

【Abstract】 Some geological disasters such as Karst cave,Underground river,Water burst,mud burst are usually met during the course of tunnel construction in Karst region,leading to huge loss.It is really necessary to predict them ahead of time.TGP(Tunnel Geological Prediction) system principle is introduced in the paper,compared with other methods,TGP system has advantage in accuracy,prediction length and manipuility.TGP geological prediction system is used in Bataishan tunnel of Chenwan expressway,karst cave is existed by analyzing depth-offset figure,comprehensive analysis figure on the same side,3-demensional cross-section scanned picture and wave speed.Compared with actual excavation geological condition,it coincides with prediction results.In practice,the data collected by TGP are certified each other,complementarities are exist,accuracy is also proper.Reliability and role of TGP are acknowledged.It’s really good for the application of TGP system in our engineering world.更多还原