多物探技术在湘桂铁路岩溶路基注浆检测中的应用  

Application of multi-physical prospecting technology in grouting detection of karst subgrade of Hunan-Guangxi railway

作　　者：肖建勇 XIAO Jianyong(Hunan Zhongda Design Institute Co.,Ltd.,Hunan Changsha 410075 China)

机构地区：[1]湖南中大设计院有限公司,湖南长沙410075

出　　处：《山东交通科技》2024年第2期45-48,53,共5页

摘　　要：针对铁路既有线岩溶路基注浆效果检测的复杂性和局限性,结合湘桂铁路二塘站岩溶路基注浆效果检测,通过研究分析注浆前后波速变化对注浆效果进行综合评价。结果表明:在地表应用多道面波法可以全天候、高效、可靠地进行注浆检测工作;在井间应用弹性波CT法可以精细刻画地下目标体形态,两者配合,既可以快速查明异常范围,又可以精准查明异常形态。In view of the complexity and limitations of the grouting effect detection of the karst subgrade of the existing railway line,combined with the karst subgrade effect detection of the Ertang Station of the Hunan-Guangxi Railway,the grouting effect is comprehensively evaluated by studying and analyzing the change of the wave velocity before and after the grouting.The results show that the application of the multi-channel surface wave method on the surface can carry out the grouting detection work allweather,efficiently and reliably.The application of elastic wave CT method between wells can accurately depict the shape of underground targets.The combination of the two methods can not only quickly identify the abnormal range,but also accurately identify the abnormal shape.

关 键 词：综合物探 注浆检测 多道面波 地震层析成像 

分 类 号：U212.2[交通运输工程—道路与铁道工程]