本文对用现场原位控制冻结法取得的高质量迁西原状砂,进行了等压固结的静、动力三轴不排水试验,较全面地研究了迁西饱和原状砂的静、动力强度特性。用比较试验结果的方法,着重研究了原状砂及重塑砂的静、动强度差别以及产生差别的机理。 In this paper, the static and dynamic triaxial undrained tests of isobaric consolidation are performed on the high-quality Qianxi undisturbed sand obtained by the in-situ controlled freezing method, and the static and dynamic strength characteristics of Qianxi saturated intact sand are studied comprehensively. . Using the method of comparing test results, the static and dynamic strength differences and the mechanism of the difference between the undisturbed and reconstituted sands were studied.