In order to improve the application efficiency of cement-solidified soil construction technology in dredger fill site,a water content control method was designed based on the reinforcement project of dredger fill site in Shanghai.The effects of delayed compaction time and rolling method on the application effect of cement-solidified soil were studied through experiments.In the test results,the 7 d unconfined compressive strength of cement-solidified soil will decreases by 44.3%-47.1%when the delayed compaction time exceeds 4 hours.So the delayed compaction time in engineering should not exceed 4 hours.By comparing the surface finishing effect and compaction degree of the site under two rolling methods,the optimal rolling construction process was determined.The research results can provide support for the construction of this project,and provide reference for the construction and quality control of similar projects.
关键词
水泥土/最佳含水率/延迟击实/碾压施工技术
Key words
cement-solidified soil/optimal water content/delayed compaction/rolling construction technology