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探地雷达隧道超前预报的数值模拟及应用分析
引用本文:李枝文1,郑志高2,高 建2,廉虎山3,余仕刚3,袁 坤3. 探地雷达隧道超前预报的数值模拟及应用分析[J]. 中州煤炭, 2016, 0(7): 143-147
作者姓名:李枝文1  郑志高2  高 建2  廉虎山3  余仕刚3  袁 坤3
作者单位:(1.中煤科工集团重庆研究院有限公司,重庆 404100; 2.重庆渝广梁忠高速公路有限公司,重庆 404100; 3.重庆渝广高速公路总承包部,重庆 404100)
摘    要:隧道地质超前预报在指导隧道安全施工中起着重要的作用,探地雷达法作为常用的隧道超前预报方法,具有探测效率高、对施工干扰小的优势,但在成果精确解释和探测深度方面存在不足。运用gprmax正演模拟软件,探讨了正演基本参数的选取,对隧道施工中遇到的常见不良地质异常体进行正演计算,得到不同地质异常体的正演图像特征,并结合工程实例,为探地雷达在隧道超前预报中取得更好的探测效果提供了借鉴。

关 键 词:地质超前预报  探地雷达(GPR)  正演模拟  地质异常体

 Numerical simulation of GPR and application examples for tunnel geological advanced prediction
Li Zhiwen1,Zheng Zhigao2,Gao Jian2,Lian Hushan3,Yu Shigang3,Yuan Kun3.  Numerical simulation of GPR and application examples for tunnel geological advanced prediction[J]. Zhongzhou Coal, 2016, 0(7): 143-147
Authors:Li Zhiwen1  Zheng Zhigao2  Gao Jian2  Lian Hushan3  Yu Shigang3  Yuan Kun3
Affiliation:(1.China Coal Technology Engineering Group Chongqing Research Institute,Chongqing 404100,China; 2.Chongqing Yuguang-Liangzhong Expressway Co.,Ltd.,Chongqing 404100,China; 3.General Contract Department of Chongqing Yuguang Expressway,Chongqing 404100,China)
Abstract:Tunnel geological advanced prediction plays an important role in the guiding of safe construction of tunnel.As the conventional method of tunnel geological advanced prediction,the method of ground penetrating radar(GPR) has the advantages of little interference and high efficiency,while it also has limitations in the aspects of results accurate interpretation and probing depth.By using gprmax,a forward simulation software,the authors discussed the selection of basic parameters of the forward simulation,and made forward calculation of the frequent geologic anomalies in the tunnel construction. This paper can provide lessons for a better exploration effect of GPR in advanced prediction combining with project cases.
Keywords:geological advanced prediction  ground penetrating radar(GPR)  forward simulation  geological anomalous body
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