( 3 ) the hydrogeology parameters " acquisition and calculation principles of the deep well dewatering in the excavation in two - layer structure strata of soft soil zone . the acquisition and calculation method of hydrogeology parameters are discussed distraughtly according to different deep foundations (三)介绍了软土地区深基坑降水二元结构地层相关水文地质参数的求取原则，并分别讨论了相应求取方法。
