Sample preparation method and sample preparation device of saturated sand-soil mixture soil sample for direct shear test

• Main Authors: YIN KEXIN, FAUCHLER ANNE-LAURE, VASILESCU, ROXANA
• Format: Patent
• Language: Chinese; English
• Published: 27.09.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a sample preparation method and a sample preparation device of a saturated sand-soil mixture soil sample for a direct shear test, and belongs to the field of soil sample preparation of a soil mechanics test. The sample preparation method comprises the following steps: mixing dry sand, dry clay and water with 1.5 times of liquid limit, and fully stirring according to the mixing sequence of sand, water and clay; the mixed slurry is vacuumized; pouring the slurry into a sample preparation device, and mounting and fixing a sample pressing device; step-by-step consolidation is carried out until the required pressure is reached; disassembling the sample pressing device, and cutting the soil sample to a required size by using a sample cutting tool; and transferring the cut sample into a shear box. The sample preparation method of the saturated sand-soil mixture soil sample for the direct shear test can be used for preparing the sand-soil mixture soil sample for the direct shear test, and a un