既有铁路岩溶路基病害探测综合分析方法研究  

Research on the Comprehensive Analysis Method of Detecting Karst Roadbed Disease of Existing Railway

作　　者：付明 FU Ming(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《路基工程》2022年第1期216-220,共5页Subgrade Engineering

摘　　要：依托某既有铁路岩溶路基病害段,采用多道地震面波、地质雷达法进行物理勘探,辅以钻孔验证勘探,进行综合分析研究。结果表明:测区内岩溶异常,分别为覆盖型岩溶、埋藏型岩溶以及受铁轨、接触网、桥涵干扰所致的异常;测区的岩溶发育程度可划分为岩溶发育区、岩溶较发育区、岩溶轻微发育区;岩溶发育区域以及顶板厚度较小的岩溶较发育区,建议优先考虑整治;对于埋藏较深的岩溶较发育区及岩溶轻微发育段落,建议加强监控。Based on the karst roadbed disease section of the railway,multichannel seismic surface wave and ground penetrating radar were used to carry out physical exploration,supplemented by confirmative mobile drilling exploration for comprehensive analysis and research.The result shows that karst anomalies in the survey area can be divided into three categories,namely covered karst,buried karst and anomalies caused by disturbance of railway track,contact network,bridge and culvert;the karst development degree in the survey area is divided into karst development area,relatively developed karst area and slightly developed karst area;Karst development areas and relatively developed karst areas with small roof thickness should be given priority for renovation;the more deeply buried relatively developed karst areas and slightly developed karst sections should be strengthened monitoring.

关 键 词：岩溶路基病害整治 多道地震面波 地质雷达法 验证性机动钻探 综合勘察 

分 类 号：U216.417[交通运输工程—道路与铁道工程]