广州大坦沙地区三维地质结构模型建成及其对城市建设和规划的指导性意义

Achivement of 3D geological structure model in Guangzhou Datansha area And Meaning of Guiding City Construction

广州市城市地质调查项目本着以地质工作服务于城市建设需要的目的,在大坦沙设计了大量的钻探工作量,通过对岩芯的对比分析和多种测试成果,以及对周边金沙洲地区出露基岩和构造的多次验证分析,对大坦沙地表以下的三维地质结构特征有了新的认识,并构建了高精度三维地质结构模型,对近年来大坦沙地区频发的地面塌陷灾害的成因机制做了专业剖析。对大坦沙区域的前景规划从地质专业角度给了适当的意见和建议。

Urban Geological Survey Project of Guaugzhou is working on service of the city-building needs.We drill a lot in Datansha of Guangzhou. Then we have some new knowledges about 3D geological structure below Datansha. In another way,we construct a hlgh--precision three--dimensional model of geological structure there.From the model,we can analysis how can surface collapse hazards of Datansha area happen in recent years professionally.So from the view of geological staff,we conclude some appropriate advice or recommendations about regional vision of Datansha.