Multifunctional unsaturated soil consolidation apparatus and test method

A consolidation instrument, multi-functional technology, applied in the direction of applying stable tension/compression to test the strength of materials, etc., can solve the lack of accurate and effective unsaturated soil testing instruments, the inability to realize the lateral pressure of unsaturated soil, and the limitation of unsaturated soil Mechanics development and other issues to achieve the effect of rich functions, compact structure, and reduced preload

Inactive Publication Date: 2015-03-25
DALIAN UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

Looking back on the development of unsaturated soil mechanics, it can be said that the lack of accurate and effective unsaturated soil testing instruments is an important factor limiting the development of unsaturated soil mechanics
[0005] Most of the existing unsaturated soil consolidation instruments ca

Method used

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  • Multifunctional unsaturated soil consolidation apparatus and test method
  • Multifunctional unsaturated soil consolidation apparatus and test method

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Embodiment Construction

[0026] The specific implementation manner of the present invention will be described in detail in conjunction with the accompanying drawings and technical solutions.

[0027] The multifunctional unsaturated soil consolidation instrument is mainly composed of a consolidation instrument loading platform 35, a weight tray 37, a weight 38, a lever 36, a counterweight 33, a loading connection block 34, a connecting rod 32, an air pressure chamber and a consolidation instrument. component composition;

[0028] The loading platform 35 is a rectangular table body structure, and is located on another larger lower table body table, the lower table body table is fixed with a lever support, and the lever 36 is fixed on the lever support; one end of the lever 36 is fixed with a counterweight 33, and the other One end is hinged to the weight tray 37, and the loading connection block 34 is an axisymmetric member. The center of the loading connection block 34 is fixed on the side of the weigh...

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Abstract

The invention discloses a multifunctional unsaturated soil consolidation apparatus and a test method, belonging to the field of geotechnical testing instruments. A thrust bearing, a linear bearing, a self-aligning assembly and an axial pressure sensor are arranged on a loading rod of a consolidation apparatus test platform in a built-in mode, so that the influence of friction force is eliminated during loading; and unnecessary pre-compression on a sample is reduced due to the design of a rotary rigid connection assembly, and the problem that the loading rod and the sample are eccentric due to machining and mounting is solved by virtue of the design of the self-aligning assembly. Meanwhile, according to the optimization design of the structure, the apparatus can be adaptive to multiple loading platforms, and the test can be performed on a conventional saturated soil consolidation apparatus and also can be performed on a triaxial compression tester.

Description

technical field [0001] The invention relates to a multifunctional unsaturated soil consolidation instrument, which belongs to the field of geotechnical testing instruments, and relates to a consolidation test of unsaturated soil, in particular to a lateral force test for controlling suction of unsaturated soil. Background technique [0002] Before planning and construction of infrastructure in the geotechnical industry, it is necessary to test the mechanical properties of the rock and soil involved in the building foundation. The test is usually carried out in an indoor laboratory. The test of the mechanical properties of the soil is called a geotechnical test. The main tool used is the geotechnical testing instrument. Unsaturated soil testing equipment refers to the equipment used to test the mechanical properties of unsaturated soil. [0003] At present, the development of unsaturated soil testing equipment is not perfect enough, but it is very important to study the mech...

Claims

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Application Information

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IPC IPC(8): G01N3/14
Inventor 邵龙潭高君生郭晓霞
Owner DALIAN UNIV OF TECH
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