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Device and method for measuring soil moisture characteristic curve under dry-wet alternation condition based on saline solution method

A soil-water characteristic curve, salt solution method, applied in measuring devices, analytical materials, soil material testing, etc., can solve problems such as low efficiency and inconvenient operation, and achieve the effect of simple operation, simple operation, and improved work efficiency.

Active Publication Date: 2021-06-29
HUAZHONG AGRI UNIV
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  • Description
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  • Application Information

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Problems solved by technology

The above method is prone to errors, inconvenient operation and low efficiency

Method used

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  • Device and method for measuring soil moisture characteristic curve under dry-wet alternation condition based on saline solution method
  • Device and method for measuring soil moisture characteristic curve under dry-wet alternation condition based on saline solution method
  • Device and method for measuring soil moisture characteristic curve under dry-wet alternation condition based on saline solution method

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Embodiment Construction

[0054] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

[0055] Such as Figure 1-Figure 22 The device shown is a device that uses the salt solution method for dry-wet cycle treatment and real-time monitoring of soil-water characteristic curves, including a base 1, a connection box 2 is fixedly installed on the upper end of the base 1, and a box body is movably installed on the upper end of the connection box 2 45. The inner side top surface of the box body 45 is movably equipped with soil grooves 50 through the lifting mechanism, and the upper end surface of the base 1 is provided with several chutes 11, and several storage compartments 3 are slidingly inserted in each chute 11, and the storage compartments 3. The number is several and arranged in an array. The ...

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Abstract

The invention relates to the technical field of water and soil characteristics, in particular to a device and a method for measuring a soil moisture characteristic curve under the dry-wet alternation condition based on a saline solution method. The device comprises a base, a connecting box is fixedly installed on the upper end face of the base, and a box body is movably installed at the upper end of the connecting box. A soil groove is movably formed in the top face of the inner side of the box body through a lifting mechanism, a plurality of sliding grooves are formed in the upper end face of the base, a plurality of storage cells are slidably inserted in each sliding groove, the storage cells are arranged in an array mode, and the storage cells located in the front and the rear correspondingly and movably penetrate through the front end face and the rear end face of a connecting box. According to the device, different saturated salt solutions can be replaced, different times of dry-wet cycles can be carried out, dry-wet cycles with different intensities can also be carried out, determination of a soil sample soil-water characteristic curve before and after dry-wet cycle treatment can also be carried out, and the device has multiple purposes and is easy and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of water and soil characteristics, in particular to a device and a method for measuring soil moisture characteristic curves under alternating wet and dry conditions based on a salt solution method. Background technique [0002] Due to global climate change, drought and flood disasters occur frequently, and the phenomenon of soil cracking is becoming more and more common. Under the condition of natural rainfall and evaporation, the soil undergoes repeated cycles of drying and wetting. During this process, the volume of the soil will expand and shrink, which will further change the permeability, water and solute migration laws, cause irreversible deterioration and attenuation of the soil structure and strength, and then lead to instability such as landslides, slips, collapses, and collapses. The occurrence of the phenomenon will lead to the occurrence of disasters, and it will also have a great impact on engi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/246
Inventor 魏玉杰周小荃辜婧瑶
Owner HUAZHONG AGRI UNIV
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