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Indoor model test device for testing permeability of geomembrane and operation method

An indoor model and test device technology, applied in the direction of measurement device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problem of geomembrane permeability coefficient, poor bonding quality of geomembrane, and defective products and other issues to achieve the effect of practicality, convenient assembly and easy operation

Inactive Publication Date: 2017-04-19
SHANDONG UNIV
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Problems solved by technology

The permeability coefficient of the geomembrane itself is generally 1×10 -10 m / s~1×10 -15 m / s, but when it is used as an anti-seepage layer for construction and operation under different engineering conditions, due to the direct lapping of the geomembrane or poor bonding quality, the factory product is defective, and it is punctured by sharp objects in the cushion soil, etc. The actual permeability coefficient of the geomembrane will be greatly affected by the existence of

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  • Indoor model test device for testing permeability of geomembrane and operation method

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Embodiment Construction

[0033] Below in conjunction with accompanying drawing, the specific implementation manner of this patent is described in further detail.

[0034] Such as Figure 1-4 As shown, the indoor model test device for testing the permeability of the geomembrane includes a visual square monitoring box, and two permeable panels parallel to each other and used for fixing and overlapping the geomembrane are inserted in the monitoring box. A rectangular soil sample box is formed between each permeable plate and the side wall of the monitoring box. The rectangular soil sample box is used to contain the soil sample. Various sensors for measuring soil sample parameters are placed in the soil sample. The sensors are connected with the information analysis system; the two sides of the rectangular soil sample box are variable water level water tank chambers, and the variable water level water tank chamber is connected with an external water supply device, and the external water supply device is c...

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Abstract

The invention relates to an indoor model test device for testing permeability of a geomembrane and an operation method, the indoor model test device includes a visual monitoring box system, a boundary condition regulation system, a geomembrane fixed adhesive system, a comprehensive measurement system and an information feedback analysis system. A visual monitoring box is used as a main body, toughened glass is used as a material, boundary conditions are controlled by a variable water level water box room, and the geomembrane fixed adhesive system comprising a geomembrane, a water permeation board, a cementing agent, a plugging layer and then like is used for bonding and fixing of the geomembrane. The boundary conditions of working states and paving conditions of the geomembrane can be studied by the indoor model test device for concrete design, the indoor model test device can be used for full-range and multi-level monitoring of pore water osmotic pressure, soil settlement, seepage flow, seepage time, permeability area, water level difference and seepage path length, permeability of a geotextile material can be evaluated and measured, compared with the previous, the indoor model test device is more simple, practical and comprehensive, and has obvious advantages.

Description

technical field [0001] The invention relates to an indoor model test device and an operation method for testing the permeability of a geomembrane. Background technique [0002] Earth-rock dams often use clay, concrete, and geosynthetics as anti-seepage materials. Among them, geomembrane has been widely used because of its high anti-seepage performance, strong adaptability to deformation, fast construction speed, simple process, and low cost. Geomembrane is a non-porous medium, and the existing research has not fully understood the permeability mechanism of geomembrane under hydraulic gradient. The permeability coefficient of the geomembrane itself is generally 1×10 -10 m / s~1×10 -15 m / s, but when it is used as an anti-seepage layer for construction and operation under different engineering conditions, due to the direct lapping of the geomembrane or poor bonding quality, the factory product is defective, and it is punctured by sharp objects in the cushion soil, etc. In the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01D21/02
CPCG01D21/02G01N15/08G01N2015/086
Inventor 李术才王欣桐马秀媛胡杰
Owner SHANDONG UNIV
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