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本文以南京基准地震台短水准场地的改造工作为例,分析了场地的地质构造、地貌、岩土性质、水文地质、植被、气温等环境地质条件,提出了地下水位的变化与点位所在的岩土相互作用,可能是南京基准地震台短水准点位变化的主要干扰机制。为改善场地测点的环境条件,制订了设置基岩标和水位观测孔的改造方案。新老点位对比观测的资料表明:场地改造工程达到了预期目的。
Taking the reconstruction of Nanjing shortest leveling station as an example, this paper analyzes the geological and geological conditions of the site such as geological structure, geomorphology, geotechnical properties, hydrogeology, vegetation and air temperature, and presents the change of groundwater level and the location of the point The interaction between soil and rock may be the main disturbance mechanism of the short-level point change of Nanjing datum seismic station. In order to improve the environmental conditions at the measuring point of the site, a modification plan was set up to set the base rock mark and the water level observation hole. Comparison of new and old points Observed data show that: the site renovation project has achieved its intended purpose.