| 壁板坡隧道富水逆断层综合超前地质预报实践 |
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| 作者单位： | ;1.中铁五局集团第四工程有限公司;2.同济大学道路与交通工程教育部重点实验室 |
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| 摘 要： | 壁板坡隧道为沪昆客运专线最长隧道,洞身被3条逆断层带切割,围岩破碎,地下水发育,工程地质条件复杂,针对壁板坡隧道富水逆断层带,建立超前地质预报体系。在分析总结已有超前地质预报成功经验的基础上,从短距离预报和中、长距离预报的角度,建立适用于壁板坡隧道复杂地质条件的超前地质预报体系。在隧道大角度穿越杨梅山-小达村逆断层中,以TSP长距离预测、红外探水短距离预测、超前地质钻探复核预测的方式,准确探知施工中可能出现的富水破碎带的位置和富水程度,为防范施工风险,确保施工安全提供了可靠依据,验证了该超前地质预报体系的可靠性及其效果。
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| 关 键 词： | 铁路隧道 超前地质预报 富水逆断层 岩溶 综合预报技术 |
Advanced Geological Prediction of Water-rich Reverse Faults in Tunnel Wall Slope |
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| Institution: | ,The Forth Engineering Co.,Ltd. China Railway No.5 Engineering Group,Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University |
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| Abstract: | Bibanpo extra-long tunnel is the longest tunnel on Shanghai-Kunming high-speed railway. The tunnel body is cut by three by faults with broken surrounding rock,rich groundwater and complex engineering geological conditions. An advanced geological prediction system is established in perspective of short-term forecasting and medium and long-term forecasting for such a tunnel. The system uses TSP for long range forecasting,infrared exploring meter for short range and geological drilling to accurately detect the location of water-rich broken zone and the degree of water content,providing an important basis for construction plan and tunnel safety and verifying the effectiveness of the system in engineering application. |
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| Keywords: | Railway tunnel Advanced geological prediction Water-rich reverse fault Karst synthetic prediction technique |
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