Rail type movable triaxial apparatus

Abstract

The invention provides a rail type movable triaxial apparatus belonging to a soil sample test device. Pressure chambers of the movable triaxial apparatus is connected with a circular rail in an embedding way, piston rods capable of applying a reciprocating load and a pressure sensor are fixedly arranged on a stander beam, a power transmission shaft connected with a pressure chamber cover is connected with each piston rod through a threaded sleeve, a displacement sensor is fixedly arranged on the power transmission shaft, when a pressure chamber slides on the circular rail below the stander beam, the center of each pressure chamber just aligns with the center of the piston rods under the stander beam, and the piston rods are connected with hydraulic cylinders. The movable triaxial apparatus is simple in structure, various soil samples can be prepared at the same time, when one sample is tested, the sample slides right below the corresponding piston rod, a pressure chamber base and a stander platform are fixed by a position pin, and the pressure chambers of the other samples move to the other side of the circular rail and the other samples are subjected to a saturation and consolidation process for the next step in a test. After the rail type movable triaxial apparatus is used, the test efficiency can be greatly improved, the samples can be conveniently assembled and disassembled, and the occupation space of test equipment can be effectively saved.

Description

technical field [0001] The invention relates to an orbital dynamic triaxial instrument, which belongs to a soil sample testing device. technical background [0002] When studying the deformation characteristics and strength characteristics of soil, it is often necessary to carry out dynamic triaxial tests of soil. After the traditional dynamic triaxial instrument tests the soil samples, the pressure chamber cover should be removed from the frame, and then replaced with new soil samples. Continue the test on the sample. In this way, a set of triaxial pressure chamber is used to carry out the test. For soil samples with small permeability coefficient, the saturation and consolidation process will take several days. Test efficiency, then it will greatly increase the cost of equipment, and it will take up too much laboratory space. SUMMARY OF THE INVENTION [0003] In order to overcome the problems existing in the prior art, the present invention provides a track-type dynamic...

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Problems solved by technology

[0002] When studying the deformation characteristics and strength characteristics of soil, it is often necessary to carry out dynamic triaxial tests of soil. After the traditional dynamic triaxial instrument tests the soil samples, the cover of the pressure chamber should be removed from the frame, and then replaced with a new soil. The sample will continue to be tested. In this way, a set of triaxial pressure chambers is used to carry out the test. For soil samples with a small permeability coefficient, the saturation and consolidation process will take several days. Test efficiency, then it will greatly increase the cost of equipment, and will take up too much laboratory space

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