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新密市某局拟建的 16层综合楼位于第四系覆盖的岩溶发育区。为有效评价隐伏型岩溶地段带来的不稳定性因素 ,有必要查明区内浅层溶洞的发育规律及分布特征。进而为高大建筑物选址及地基处理方案提供决策的依据。本文通过微重力测量结合高密度电法对相关地区进行详细勘查 ,基本查明了区内浅层溶洞的平面分布情况和空间展布形态 ,从环境地球物理角度对工程选址及地基处理提出了合理的建议 ,得到了建筑设计部门的高度评价。
The new 16-storey complex planned by a bureau in Xinmi City is located in the karst development area covered by Quaternary. In order to effectively evaluate the instability brought by hidden karst areas, it is necessary to find out the developmental rules and distribution characteristics of shallow karst caves in the area. Which in turn provides the basis for decision-making of tall buildings location and foundation treatment programs. In this paper, a detailed survey of the relevant areas by microgravity measurement combined with high-density electrical method is conducted, and the plane distribution and spatial distribution of shallow karst cave in the area are basically ascertained. From the point of view of environmental geophysics, the project site selection and foundation treatment Reasonable suggestions, has been highly praised by the architectural design department.