Multilayer detachable constant-temperature porous medium seepage test device suitable for PIV (particle image velocimetry)

A technology of porous media and test equipment, which is applied in the direction of measurement equipment, suspension and porous material analysis, permeability/surface area analysis, etc., can solve problems affecting shooting effects, lens damage, etc., and achieve the effect of flexible sample preparation and sampling

Pending Publication Date: 2021-06-25
NANJING UNIV OF TECH
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AI Technical Summary

Problems solved by technology

Although Particle Image Velocimetry (PIV) can capture images of the flow state of particles inside the column, the cylindrical column of the traditional seepage column will interfere with the laser, affecting the shooting effect and causing irreversible damage to the lens

Method used

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  • Multilayer detachable constant-temperature porous medium seepage test device suitable for PIV (particle image velocimetry)

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Embodiment Construction

[0026] The device structure and specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] like figure 1 As shown, the device includes a constant temperature seepage loading system (1), a seepage model box (2), a seepage pressure measurement system (3), and a water quality monitoring system (4). The seepage test loading system (1), seepage pressure measurement system (3), the water quality monitoring system (4) is respectively connected with the seepage model box (2); the seepage test column in the seepage test model box (2) is connected from top to bottom by the inflow box chamber (2-1), The first seepage section box chamber (2-2), the second seepage section box room (2-3), the third seepage section box room (2-4) and the outflow box room (2-5) are formed, which are adjacent to each other up and down The chambers are detachably connected, and the aperture plate (2-10) and the filter screen (2-11) can be s...

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Abstract

The invention provides a multilayer detachable constant-temperature porous medium seepage test device suitable for PIV (particle image velocimetry). The multilayer detachable constant-temperature porous medium seepage test device comprises a seepage model box, a constant-temperature seepage loading system, a seepage pressure measuring system and a water quality monitoring system. The test device has the advantages of constant temperature, detachability, flexibility in sample preparation and sampling, sterilization and the like. The multilayer detachable sample preparation and sampling is adopted, and the problems that in a traditional integrated one-dimensional soil seepage test bed, media are uniform and single, accurate segmented sampling cannot be achieved, and the test environment temperature is unstable are mainly solved. Meanwhile, by matching with a detachable light-transmitting box body suitable for a particle image testing technology, the defect that a conventional testing device is not suitable for a particle image velocity measurement system due to column refraction of a cylindrical seepage column is overcome. The invention further provides a testing method of the multilayer detachable sampling constant-temperature porous medium seepage testing device suitable for PIV.

Description

technical field [0001] The invention relates to an indoor one-dimensional soil column seepage test device, in particular to a multi-layer detachable constant temperature porous medium seepage test device and a test method suitable for PIV. Background technique [0002] Excessive exploitation of groundwater resources will lead to a series of environmental geological problems such as groundwater resource attenuation, land subsidence, surface cracks, karst collapse, seawater intrusion, groundwater quality formation, and groundwater quality deterioration. Therefore, in order to protect groundwater resources and alleviate the geological problems caused by over-exploitation of groundwater, it is necessary to use reasonable and reliable means to artificially recharge groundwater to maintain the balance of groundwater resources. With the gradual increase in the application of groundwater recharge, the problems of clogging and overflow of recharge wells have gradually emerged. Ground...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/08G01N15/0806
Inventor 马苏宁陈丽萍龚延风王世林周彦杰
Owner NANJING UNIV OF TECH
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