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基于地质雷达探测技术对水工隧洞溶洞特性的研究 预览

Research on fluctuation characteristics of hydraulic tunnels based on geological radar detection technology
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摘要 地下工程一直是施工的难点问题,地下工程是隐蔽工程,地下地质环境复杂多变,而且隧洞工程庞大,如果不能准确探明地下地质情况,在施工过程中存在极大的安全隐患.本文结合实际隧洞工程,首先通过采用数值分析软件GprMax2.0对地质雷达电磁波在溶洞传播特性进行正演分析,在理论上得出了其电磁波形图;其次结合现场试验采用地质雷达测试技术对隧道掌子面进行超前地质预报;最后通过实际开挖进行验证,建立了相关溶洞地电模型,得出了地质雷达波在隧洞溶洞中传播的波动特性. Underground engineering has always been a difficult problem in construction.Underground engineering is a hidden project.The underground geological environment is complex and variable,and the tunnel engineering is huge.If the underground geological conditions cannot be accurately detected,there is a great potential safety hazard during the construction process.In this paper,combined with the actual tunnel engineering,the numerical analysis software GprMax2.0 is used to carry out the forward analysis of the electromagnetic wave propagation characteristics of the geological radar in the cave,and the electromagnetic waveform diagram is theoretically obtained.Secondly,the geological radar test technology is used in combination with the field test.The tunnel face was advanced for geological prediction,and finally verified by actual excavation.The related cave geoelectric model was established and the relevant fluctuation characteristics of the fracture zone were obtained.
作者 杜燕 彭世琥 DU Yan;PENG Shihu(Poyang County Water Resources and Electric Power Survey and Design Office of Jiangxi Province,Poyang 333100,China)
出处 《江西水利科技》 2019年第1期23-27,共5页 Jiangxi Hydraulic Science & Technology
关键词 水工隧洞 溶洞 地质雷达 Hydraulic tunnel Cave Geological radar
作者简介 杜燕(1985-),女,大学本科,工程师.
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