Device and method for measuring water and soil characteristic curve under dry and wet circulation

A technology of soil and water characteristic curve and dry-wet cycle, which can be used in measuring devices, instruments, scientific instruments, etc., can solve the problems of low accuracy of test results, difficult measurement, etc. Effect

Inactive Publication Date: 2018-09-07
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a device and method for measuring water and soil characteristic curves under dry-wet cycles, so as to solve the problems of low accuracy of test results and difficult measurement

Method used

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  • Device and method for measuring water and soil characteristic curve under dry and wet circulation
  • Device and method for measuring water and soil characteristic curve under dry and wet circulation
  • Device and method for measuring water and soil characteristic curve under dry and wet circulation

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Embodiment Construction

[0034] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0035] Such as figure 1 As shown, a device for measuring water and soil characteristic curves under dry-wet cycles includes experimental parts, which are placed in Micro-CT detection equipment. 1. The bottom is provided with a first base 3, and the suction applying part includes a water storage chamber 4, a plexiglass tube 5 and a second base 7. The bottom of the water storage chamber 4 is connected to the plexiglass tube 5 through a valve, and a second base is provided under the plexiglass tube 5. The base 7, the second base 7 and the first base 3 are connected through the connecting pipeline 2, and the suction force applying part is fixed by the iron frame 8 and the clamp 6 arranged on the iron frame 8, and the ir...

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Abstract

The invention relates to a device and a method for measuring a water and soil characteristic curve under dry and wet circulation. The device comprises an experiment part, wherein the experiment part is arranged in Micro-CT detection equipment; the experiment part comprises a soil sample chamber, a suction force applying part and a connecting pipeline; a first base is arranged at the bottom part ofthe soil sample chamber; the suction force applying part comprises a water storage chamber, an organic glass tube and a second base; the organic glass tube is connected below the water storage chamber through a valve; the second base is arranged under the organic glass tube, and is connected with the first base through the connecting pipeline; the suction force applying part is fixedly connectedwith a fixture on an iron stand through the iron stand; a laser displacement meter is arranged on the iron stand, and is used for measuring the change of water level in the organic glass tube.

Description

technical field [0001] The invention relates to the technical field of water and soil characteristics, in particular to a device and method for measuring water and soil characteristic curves under dry-wet cycles. Background technique [0002] Under natural conditions, the soil undergoes several dry-wet cycles of "rainfall-drying", and the mechanical and hydraulic properties of the soil will change greatly. Especially after the slope has undergone this process, it becomes more prone to surface slippage. Natural disasters such as landslides and landslides have caused huge loss of life and property. From a microscopic point of view, it becomes particularly important to explain the properties of unsaturated soils after drying and wetting cycles. [0003] The water and soil characteristic curve of unsaturated soil is a curve that reflects the relationship between the water state of the soil (such as saturation, volume water content, mass water content, etc.) and the matric sucti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/046
CPCG01N23/046
Inventor 张建经胡君龙闫世杰周永毅
Owner SOUTHWEST JIAOTONG UNIV
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