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Temperature-suction-stress coupling multifunctional direct-shearing and single-shearing testing system and operation method thereof

A testing system and multi-functional technology, which can be used in the application of stable shear force to test material strength, soil material testing, material inspection products, etc. It is difficult to meet the test requirements of special geotechnical materials and other problems to achieve the effect of improving accuracy and reducing errors

Active Publication Date: 2017-08-18
南京泰克奥科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, few people in China use simple shear instrument to study the mechanical properties of geotechnical materials. The main reasons are: first, the simple shear mechanism is not perfect; The needs of multi-field coupling test research, the fourth is that the effective reception of shear waves in the single shear test process cannot be realized, and the fifth is that the test efficiency is low

Method used

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  • Temperature-suction-stress coupling multifunctional direct-shearing and single-shearing testing system and operation method thereof
  • Temperature-suction-stress coupling multifunctional direct-shearing and single-shearing testing system and operation method thereof
  • Temperature-suction-stress coupling multifunctional direct-shearing and single-shearing testing system and operation method thereof

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Experimental program
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Effect test

Embodiment 1

[0070] like Figure 1-13 Shown, a kind of temperature-suction-stress coupling multifunctional direct shear simple shear test system, it comprises control cabinet 1, direct shear single shear instrument 2, diffused bubble washing device 3, temperature control device 4 and computer 5, described The control cabinet 1 is connected with the direct shear simple shear instrument 2 , the temperature control device 4 and the computer 5 , and the direct shear simple shear instrument 2 is connected with the diffusion bubble flushing device 3 and the temperature control device 4 .

[0071] In the temperature-suction-stress coupled multifunctional direct shear simple shear test system described above, the direct shear simple shear instrument 2 includes an axial loading system 2-1, a horizontal shear system 2-2, and a pressure chamber 2- 3 and brackets 2-4;

[0072] Both the horizontal shearing system 2-2 and the pressure chamber 2-3 are installed on the bracket 2-4, and the horizontal she...

Embodiment 2

[0098] The temperature-suction-stress coupled multifunctional direct shear single shear test system can perform both saturated soil tests and unsaturated soil tests. The main operations are:

[0099] When performing the direct shear single shear test on saturated soil, it is sufficient to close the first high-pressure ball valve 2-45 and the second high-pressure ball valve 2-46;

[0100] When performing the unsaturated soil direct shear single shear test, it is sufficient to close the second high-pressure ball valve 2-46 and the third high-pressure ball valve 2-44.

Embodiment 3

[0102] During the test, the temperature-suction-stress coupled multifunctional direct shear single shear test system can effectively control the temperature, and the main operations are:

[0103] The temperature of the sample 2-25 is controlled by the circulating liquid in the water-bath circulating copper pipe 4-3, and the heat insulation material 4-4 is used as the heat insulation material between the pressure chamber 2-3 and the outside world, and the above-mentioned first A temperature sensor 4-1 and a second temperature sensor 4-2 monitor and feed back the temperatures in the pressure chamber 2-3 and the sample 2-25 respectively, and compare the temperature values ​​obtained through the feedback with the temperature values ​​required for the test, Control the temperature change during the test.

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Abstract

The invention discloses a temperature-suction-stress coupling multifunctional direct-shearing and single-shearing testing system and an operation method thereof. The temperature-suction-stress coupling multifunctional direct-shearing and single-shearing testing system comprises five parts including a control cabinet (1), a direct-shearing and single-shearing instrument (2), a diffused air bubble washing device (3), a temperature control device (4) and a computer (5), wherein the five parts are connected through a communication protocol; a testing process and data acquisition are controlled by utilizing the computer (5); manual testing control can also be carried out on the direct-shearing and single-shearing instrument (2), the diffused air bubble washing device (3) and the temperature control device (4) by adopting the control cabinet (1). The temperature-suction-stress coupling multifunctional direct-shearing and single-shearing testing system is applicable to soil body shearing strength tests and research under a temperature-suction-stress coupling effect; conventional consolidation, direct shearing and single shearing tests on a soil body can be effectively carried out, and consolidation, direct shearing and single shearing tests under a multi-field coupling effect of temperature, suction, stress and shearing waves can be realized; soil body shearing strength, a consolidation and sedimentation property and a soil-water characteristic curve under different environment conditions can be researched.

Description

technical field [0001] The invention relates to a temperature-suction-stress coupled multifunctional direct shear single-shear test system and its operating method, in particular to a method for testing soil shear strength and consolidation settlement characteristics under the condition of temperature-suction-stress multi-field coupling Rock and soil testing equipment. Background technique [0002] In geotechnical engineering, the shear resistance of geotechnical materials reflects the ability of geotechnical materials to resist shear failure, which is of great significance to engineering design and research. Generally, the research methods of shear performance of geotechnical materials can be divided into two categories: in-situ test and indoor test research. The former mainly includes static penetration test, dynamic penetration test, standard penetration test and cross-plate shear test, etc. It is highly representative to accurately measure the engineering mechanical pro...

Claims

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Application Information

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IPC IPC(8): G01N3/24G01N33/24
CPCG01N3/24G01N33/24Y02E30/30
Inventor 季李通韦昌富
Owner 南京泰克奥科技有限公司
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