微动探测方法在城市隐伏岩溶探查中的应用  

Application of the Microtremor Survey Method in the Exploration of Urban Buried Karst

作　　者：龙称心 陈喜峰 牛广天 LONG Chengxin;CHEN Xifeng;NIU Guangtian(CCCC Second Highway Consultants Co.,Ltd.,Wuhan 430052,China)

机构地区：[1]中交第二公路勘察设计研究院有限公司,武汉430052

出　　处：《路基工程》2024年第6期133-138,共6页Subgrade Engineering

摘　　要：结合黄石市桂林南路与苏州路交叉口立交工程中的勘察案例,介绍微动探测方法原理,并应用在城市隐伏岩溶区勘察中,根据物探解译结果,结合剪切波测试和相应钻孔进行异常区域验证。结果表明:微动探测方法发现溶蚀沟槽1处、溶洞3处、串珠状溶蚀发育带1处,验证成功率高;微动探测方法能够在复杂的城市背景和噪声环境中,准确圈定灰岩区岩溶发育情况,为工程设计提供良好的地质资料。Based on the investigation case of the intersection of South Guilin Road and Suzhou Road in Huangshi City,the principle of the microtremor survey method is introduced,and it is applied to the investigation of the buried karst area in the city.According to the results of geophysical interpretation,the abnormal region is verified by shear wave test and corresponding drilling.The results show that 1 solution groove,3 karst caves and 1 beaded solution development zone were found by the microtremor survey method,with high verification success rate.The microtremor survey method can accurately delineate karst development in limestone area under complex urban background and noisy environment,providing good geological data for engineering design.

关 键 词：微动探测方法 拓展空间自相关法 城市勘察 灰岩区 串珠状岩溶 

分 类 号：P642.254[天文地球—工程地质学]