Soil body vertical fracture model observation test device and test method

The technology of a test device and test method, which is applied in the field of geotechnical engineering, can solve the problems such as the inability to observe vertical cracks, and achieve the effects of high precision, high imaging quality and simple test device

Pending Publication Date: 2021-06-25
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the present invention provides a soil vertical crack model observation test device and

Method used

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  • Soil body vertical fracture model observation test device and test method
  • Soil body vertical fracture model observation test device and test method
  • Soil body vertical fracture model observation test device and test method

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Embodiment

[0046] as attached Figure 1-7 As shown, this embodiment provides a soil vertical crack model observation test device, including a bracket 1, a soil container 2, a CIS scanning module 3, a driving mechanism 4, an observation soil sample 5, a buffer unit 6, and a weighing device 7 and a heating plate; the support 1 is vertically fixed on the ground, and the soil container 2 is vertically arranged in the support 1, and the lateral displacement of the soil container 2 is limited by the support 1, ensuring that the soil container 2 remains vertically Straight state.

[0047] The support 1 includes a guide rail 11 and two transverse support frames 12, the guide rail 11 is vertically fixed on the ground, and the two transverse nails 12 are respectively arranged at the upper and lower ends of the guide rail 11; the soil container 2 is vertically arranged between the guide rails 11, And it is located between two transverse support frames 12; in this embodiment, the guide rail 11 is a...

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Abstract

The invention discloses a soil body vertical fracture model observation test device and test method. The device comprises a support, wherein the support is vertically fixed, and a soil body container is vertically arranged in the support; the soil body container is of a hollow cuboid structure, the observation soil sample is compacted in the soil body container, and the top of the soil body container is open; a CIS scanning module is vertically arranged on the support in a sliding mode, and an image sensor of the CIS scanning module is tightly attached to a vertical face of the soil body container; a driving mechanism is connected with the CIS scanning module and used for driving the CIS scanning module to vertically move along the vertical face of the soil body container. According to the test device, the observation soil sample in the soil body container is humidified or dehumidified, so the observation soil sample generates a vertical crack, and simulation of the vertical crack of the soil body is realized; the driving mechanism drives the CIS scanning module to vertically slide along the vertical face of the soil body container, the vertical crack information of an observed soil sample is obtained, and displacement field changes in the soil body cracking process are accurately determined. The test device is simple and high in precision.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, in particular to a soil vertical crack model observation test device and test method. Background technique [0002] When the soil structure is complete, the impact depth of rainfall infiltration is limited, but due to the periodic water content changes, the compacted soil will have different degrees of cracks in the horizontal and vertical directions. On the one hand, the appearance of cracks will destroy the structural integrity of the soil and lead to a decrease in strength; on the other hand, it will provide channels for water infiltration, increase the scope of water infiltration and further aggravate the development of cracks. The undisturbed soil in the natural slope has been in a relatively stable state after long-term natural environment. In contrast, the filled slope is mainly composed of compacted and remolded soil, and its structure is still in an undeveloped state com...

Claims

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Application Information

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IPC IPC(8): G01N33/24G01N21/84G01N1/44G01N1/28
CPCG01N33/24G01N1/28G01N1/44G01N21/84
Inventor 袁一力胡长明梅源
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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