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Freeze-thaw thermal cycle triaxial seepage multifunctional pressure chamber for geotechnical materials

A geotechnical material and thermal cycle technology, which is applied in soil material testing, material inspection products, etc., can solve problems such as the inability to control the test temperature and the inability to perform seepage testing.

Active Publication Date: 2019-01-22
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this device is that it cannot realize the control of the test temperature, nor can it perform the seepage test of the sample.

Method used

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  • Freeze-thaw thermal cycle triaxial seepage multifunctional pressure chamber for geotechnical materials
  • Freeze-thaw thermal cycle triaxial seepage multifunctional pressure chamber for geotechnical materials
  • Freeze-thaw thermal cycle triaxial seepage multifunctional pressure chamber for geotechnical materials

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Embodiment Construction

[0040] Below in conjunction with accompanying drawing and embodiment the invention will be further described:

[0041] like Figure 1 to Figure 5 In the shown geotechnical material freeze-thaw thermal cycle triaxial seepage multifunctional pressure chamber, the cylindrical outer cavity 2 is fixed on the base 1 . The upper part of the side wall of the outer cavity body 2 is provided with an outer cavity circulating liquid outlet 3, and an inner cavity body is arranged in the outer cavity body 2, and the lower end of the inner cavity body is fixed to the base 1. The upper end of the inner cavity passes through the top cover 12 provided on the top of the outer cavity 2 , and an annular chamber is formed between the inner cavity and the outer cavity 2 . A heat insulation layer 39 is embedded in the side wall of the outer cavity 2 .

[0042] As a preferred mode of the present invention, the inner cavity has a two-stage tube 21 with a small top and a large bottom. In the ring gro...

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Abstract

The invention discloses a freeze thawing thermal cycle tri-axial seepage multifunctional pressure chamber for a geotechnical material. The multifunctional pressure chamber comprises a mounting table and a seat body, wherein the seat body comprises a vertically-arranged square panel; a threaded hole is formed in the four corners of the left side face of the square panel respectively; a circular big through hole is formed horizontally in the middle; a casing body extends into the cavity of a square body; a plurality of bearings are arranged side by side inside the casing body; two support legs are arranged on the mounting table; the two support legs are positioned on the front and back sides of the square body respectively; the upper end of each support leg is connected with a fixed clamping plate through a bolt; each fixed clamping plate is correspondingly fixed to the upper end of a transverse waist plate in a pressing way from top to bottom. The multifunctional pressure chamber has the advantages of reasonable design, simple structure, and convenience in production and operation; the whole seat body is molded integrally, and the structure of the seat body is strengthened repeatedly, so that the structure of the seat body becomes firm, and a motor runs stably, accurately and reliably.

Description

technical field [0001] The invention belongs to the field of rock and soil test devices, in particular to a three-axis seepage multifunctional pressure chamber for freezing and thawing heat cycles of rock and soil materials. Background technique [0002] Affected by geographical and engineering conditions, many geotechnical projects in nature, such as slope engineering in cold regions, tailings pond engineering, roadbed engineering, and liquid nitrogen cooling coal anti-permeability and temperature enhancement used to prevent coal and gas outburst in coal mines Ascension-drive gas and gas production projects, etc., all involve the freeze-thaw thermal cycle process of rock-soil materials. Rock-soil materials are three-phase porous media materials. The mechanical properties of rock and soil materials are extremely complex, and the phenomenon of freeze-thaw cycles has a serious impact on the physical, mechanical and deformation characteristics of rock and soil materials. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 张东明郑彬彬杨玉顺白鑫楚亚培李树建周斌
Owner CHONGQING UNIV
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