Different-gradient soil stable infiltration instrument

A technology for stabilizing infiltration and soil, applied in the field of infiltration

Inactive Publication Date: 2012-07-18
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the study of slope stable infiltration, the vertical infiltration process and the lateral infiltration process must be measured separately, and the original double-ring infiltration method cannot achieve this goal at all.
Disc type imbibrator also disturbs the soil and is not suitable for field measurement on slopes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The contour water level plate on the slope is composed of 14~29 thin-layer stainless steel plates with a length of 598mm, 298mm and 148mm, a width of 150mm and a thickness of 0.5mm. The contour water level plate is inserted into the soil layer 100~130mm along the contour line along the inner and outer frame surface grooves to form contour water level plates arranged along the slope. angle is the slope angle. Each adjacent equal-height water level plate is closed with the inner and outer frames. After the water is injected into the space enclosed by the uppermost contour water level plate from the water inlet pipe, it gradually overflows over the top of the plate and enters the space of the lower level contour water level plate; finally, the water levels of all the contour water level plate enclosure spaces are equal, forming equal water potential along the slope ground A differential infiltration system for simulating rainfall-induced slope infiltration.

[0030] 3) I...

Embodiment 2

[0037] 4) Pull out 200mm of the steel plate on the upper part of the inner and outer frames on the downhill and fix it, adjust the water inflow to ensure that the average water layer thickness of each water potential difference unit is 20mm, observe the change of the water outflow until it is stable, continue to observe, and determine the water inflow and outflow After the flow rate is stable, read the inflow and outflow flow, and the difference between the two is the sum of the lateral infiltration and vertical infiltration along the slope. Combined with the vertical stable infiltration observation results in the third step, the stable lateral seepage can be calculated (for the basic principle see image 3 ).

[0038]

[0039] Example 3:

[0040] The soil stabilization infiltration instrument with different slopes includes a flow meter and a water storage container 6, and also includes an inner infiltration frame 1, an outer infiltration frame 2 and a slope equal high water...

Embodiment 3

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Abstract

The invention relates to a different-gradient soil stable infiltration instrument. The different-gradient soil stable infiltration instrument comprises a flowmeter and a water storage container as well as an inner infiltration frame, an outer infiltration frame and slope contour water level plates, wherein the inner infiltration frame and the outer infiltration frame are coaxially arranged and run through vertically; the thickness of each surface of the inner frame and the outer frame is reduced from top to bottom; water outlets are formed on the inner frame and the outer frame; the corresponding vertical surface of the inner frame and the outer frame is formed by embedding upper and lower plates; the embedding junction is sealed; a group of grooves are formed on the inner side of the two opposite surfaces of the outer infiltration frame and the inner side and the outer side of the two opposite surfaces of the inner infiltration frame equidistantly; the slope contour water level plates are arranged in the grooves; and the adjacent slope contour water level plates and the inner frame and the outer frame are closed. The different-gradient soil stable infiltration instrument overcomes the defects that the original measuring methods at home and abroad disturb soil and are not suitable for slope soil measurement, adopts an inner and outer square infiltration frame method, and can measure slope vertical stable infiltration speed and slope lateral stable infiltration speed respectively under the condition of different-gradient natural soil section.

Description

[0001] technical field [0002] The invention belongs to the field of soil infiltration measurement, in particular to an infiltration meter used for soils with different slopes. [0003] Background technique [0004] The stable soil infiltration rate refers to the amount of water infiltration per unit time through a certain thickness of soil layer under the condition of a stable water potential difference between two different positions of the soil saturated with soil water, that is, the infiltration rate; West's law calculates a certain soil stability infiltration coefficient, which has a certain relationship with soil texture, structure, soil configuration and the influence of human management measures, and is one of the important parameters of soil infiltration properties. At present, the measurement of this parameter mostly adopts the method of double-ring infiltration. This method is very simple to apply on the horizontal ground, and can measure the stable infiltratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
Inventor 夏立忠吴永红马力杨林章
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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