Dynamic Compaction Of Soft Ground Salinization

The study is based on the project of dealing with the saline soil soft ground of Jia yu guan～An xi highway form Lian yun gang to Huo er guo si national highway. Depend on summarizing the prehuman of research fruit and through normal indoor experiment, the project characteristic of Jia An senior highway saline soil is studied and the choose range of basic physical mechanics index was given , which can provide basic data for the project of dealing with the saline soil design.Due to local situation of the saline soil soft ground of Jia An senior highway and compare schemes of dealing with the saline soil soft ground, the dynamic consolidation method is adopted. Through a series of field tests, the paper puts forward the best tamper number of times and the change regulation of the quantity of soil body swelled up outside the area, characteristics of ground subsidence and soil pressure under the condition of 2000kN·m dynamic consolidation energy. Also, the paper gives the technique parameter for design of dynamic consolidation reinforcement. The results of the field tests indicates the dynamic consolidation method deal with the saline soil soft ground is a economic and valid method and the bearing capacity of ground after reinforcement can reach 180 kPa, which can spread and apply to deal with soft ground of resemble area.