【摘要】 地下水的运动和地表水的流动会使可溶岩发生化学溶蚀作用、机械侵蚀作用以及与之并生的迁移、堆积作用。一些岩溶地区渗流作用强烈,给既有铁路的安全运营带来了极大的隐患。为了探测铁路路基下的岩溶灾害,选择浅表地层的瑞雷波法,它具有分辨率高、受场地影响小、装备轻便快捷等优点。结合实例,首先介绍瑞雷面波原理,然后直行野外的数据采集,最后进行数据处理。结果表明瑞雷面波能够有效地检测运营铁路岩溶灾害。本次研究给钻孔注浆等地质处理手段提供了合理的依据。更多还原

【Abstract】 With the movement of groundwater, the flow of groundwater and surface water will cause chemical dissolution, mechanical erosion, concurrent migration and accumulation of soluble rocks. Some seepage in karst areas is strong, bringing hidden danger to the safe operation of existing railways. In order to detect karst disasters under the railway subgrade, we chose the Rayleigh wave method of the superficial stratum with the advantages of high resolution, small impact on the site and being portable. Combined with examples, the principle of Rayleigh wave, the data acquisition and data processing in the field will be introduced. Combined with the analysis of the data results, the Rayleigh wave is used to detect the operation of railway karst disasters, which can provide the effectiveness and superiority in preventing geological disasters as well as a reasonable basis for geological means such as borehole grouting.更多还原