地震映象法与高密度电法在岩溶塌陷勘察中的联合应用

The Combined Application of Seismic Imaging Method and High-density Electric Method to the Survey of Karst Collapse Areas

石灰岩地区的岩溶塌陷是工程建设中必须重视的安全隐患。为查明某高速公路工程岩溶塌陷区的范围、发育形态和规模,联合应用了地震映象法和高密度电法。成果表明:地震映象法和高密度电法反映的结果具有较好的一致性;地震映象法能更精细地反映岩溶塌陷异常范围;高密度电法能更全面地揭露岩溶发育形态;联合采用两种方法进行岩溶塌陷勘察能取得更全面的成果。

Arst caves are the potential security risks for engineering construction in limestone areas, which require special attention. In order to investigate the spatial characteristics of karst caves at a highway construction site, a combined application of the seismic imaging method and high-density electric method has been accomplished. The result indicates that the two methods coincide well. The seismic imaging method detects the range of karst caves more precisely while high-density electric method reveals the spatial characteristics of karst caves more clearly. Therefore, the combined application of the two methods gives a more comprehensive result in the karst caves survey projects.