Triaxial remodeling soil sample forming method and device

Abstract

The invention discloses a three-axis remolding soil sample molding device, which is characterized in that the device includes a worm gear mechanism (1), a hand wheel (3), a support platform (5), a pillar (6), a connecting sleeve (7 ), movable extrusion plug (8), soil holding cylinder (10), base (13) and lifting rod (14); the worm gear mechanism (1) is installed on the support platform (5) through nut a (2); The worm (101) of the worm gear mechanism (1) is connected to the handle (3), and the worm gear (102) of the worm gear (1) is set in cooperation with the lifting rod (14); the support table (5) is connected by a nut b (4) is connected with the pillar (6), and the support platform (5) is connected with the base (13) through the pillar (6); the lower end of the lifting rod (14) is connected with the movable extrusion plug (8) ) connection; the movable extrusion plug (8) is located inside the soil storage cylinder (10); the soil storage cylinder (10) is located on the base (13). The invention overcomes the technical defect that the traditional method cannot well control the water content and compactness of soil samples, and can conveniently produce cylindrical soil samples with arbitrary water content and compactness for triaxial tests.

Description

technical field [0001] The invention belongs to the field of soil mechanics, and relates to a preparation method and device for remolding soil samples, in particular to a triaxial remolding soil sample forming method and a device thereof. Background technique [0002] The triaxial shear test is a shear strength test in which the sample gradually increases the axial pressure until the sample is destroyed under a certain fixed surrounding pressure. It is a triaxial shear test designed on the basis of the Moore-Coulomb strength theory. Pressurized shear test. [0003] The triaxial shear test is a relatively complete indoor test method for measuring the shear strength of soil. Usually, 3 to 4 cylindrical samples are used to measure the shear strength of soil under different surrounding pressures, and then use The Mohr-Coulomb failure criterion determines the shear strength parameters of the soil. [0004] The triaxial shear test can strictly control the drainage conditions and...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the above problems, to provide a triaxial remolding soil sample forming method and its device, which overcomes the technical defects that the traditional method cannot control the water content and compactness of the soil sample well, and can conveniently make any Cylindrical soil samples for triaxial testing of water content and compactness

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