云湛高速浅层覆盖型岩溶路基处置关键技术研究

The study on key technology of shallow cover Karst Subgrade treatment of Yunzhan highway

采用高密度电法(物探)与钻探相结合的方法对云湛高速浅层覆盖型岩溶分布进行了综合勘察,结合溶洞埋藏情况和地质水文状况,进行了岩溶风险评估。借鉴以往的处治经验,采用工程类比法结合风险评估结果提出了不同路段的岩溶处治方案,并给出了处治方案的实施要点。

The combination of high density electrical method(geophysical prospecting)and drilling method is used to carry out comprehensive investigation on the Karst distribution of the shallow.The karst risk assessment is carried out by combining the burial conditions and geological and hydrological conditions.Based on the previous experience,the engineering analogy method is used to combine the risk assessment results,and the karst treatment scheme of different sections is put forward,and the implementation points of the treatment scheme are given.