Frozen soil mechanics model test device

Abstract

The present invention relates to a model test device, and specifically to a frozen soil mechanics model test device. The invention is characterized in that the frozen soil mechanics model test device has a full-steel box type structure which comprises a heat insulation box body, a baseboard temperature controller, a water supplying device, a loading device and a data collecting and processing device. The device adopts a welding mode for connecting to a whole, and only one side plate adopts bolt connection, wherein, the baseboard structure of heat insulation box body comprises a heat insulationbaseboard, a water supplying pool and a top plate of water supplying pool. The structure gives attention to the functions of water supplying and temperature control. The water supplying device comprises a water level controller, the water supplying pool and a water supplying pipeline device. The charging device comprises a hydraulic jack and a hydraulic oil pump. The data collecting and processing device comprises a DT500 / 600 series data collector, a XSL series temperature measuring instrument and various types of sensors. The device of the invention has the advantages of realizing unidirectional and bidirectional freezing condition, realizing the water supplying of water migration in freezing process, providing the load of model test load application damage, monitoring the temperature field and stress field of frozen soil, monitoring the frost heaving, subgrade settlement deformation, etc.; and realizing the automatic collection and analysis of test data in the test process.

Description

Technical field: [0001] The invention relates to a model test device, in particular to a model test device for frozen soil mechanics. Background technique: [0002] At present, in the field of geotechnical engineering, there is no mature test device for the research on the physical and mechanical properties of frozen soil, which can realize one-way and two-way freezing conditions, simulate the temperature field, displacement field and stress field of frozen soil, and freeze Conditions such as moisture migration during the process. Especially in the aspect of carrying out large-scale physical and mechanical model tests of frozen soil in the laboratory, there is still no set of test devices that can meet the test requirements. According to the CD-ROM search by the National Patent Office, in China, the only similar test device is the "3D Geomechanics Model Test Device" (Patent No.: 200510045291.7). However, this device can only meet the needs of conventional geomechanics test ...

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Problems solved by technology

[0002] At present, in the field of geotechnical engineering, there is no mature test device for the research on the physical and mechanical properties of frozen soil, which can realize one-way and two-way freezing conditions, simulate the temperature field, displacement field and stress field of frozen soil, and freeze Conditions such as moisture migration during the

Especially in the laboratory to carry out large-scale frozen soil physical and mechanical model test research, there is no set of test equipment that can meet the test requirements.

According to the CD-ROM search by the National Patent Office, in China, the only similar test device is the "3D Geomechanics Model Test Device" (Patent No.: 200510045291.7). However, this device can only meet the needs of conventional geomechanics test simulations and cannot carry out The physical and mechanical model test of frozen soil under low temperature conditions can not realize the water supply of water migration during the freezing process of the soil, nor can it control the temperature process, and can not control the freezing conditions of one and two directions. Moreover, the effect of frost heave force Under the condition, the deformation of the side wall of the box cannot meet the requirements of force measurement

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