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Capillary soil water climbing height measuring device

A height measurement device and capillary water technology, which is applied in the direction of measuring devices, suspension and porous material analysis, scientific instruments, etc., can solve the problem of inaccurate rise of capillary water and achieve the effect of maintaining a dry and wet state

Inactive Publication Date: 2010-04-07
SOUTHEAST UNIV
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Problems solved by technology

[0003] At present, most of the research on the application of capillary water in my country is concentrated in the agricultural water conservancy department, and the research area is mostly limited to the soil salinization area and the seasonal freeze-thaw area. The relatively simple vertical pipe method is generally used to measure the rising height of capillary water , that is, the test is carried out after the soil sample is buried with a small-diameter circular tube. The device is relatively simple, and the measured capillary water rise height is not accurate enough.

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  • Capillary soil water climbing height measuring device
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  • Capillary soil water climbing height measuring device

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Embodiment Construction

[0023] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] Such as figure 1 with figure 2 As shown, the soil capillary water rising height measuring device of the present invention includes a soil holding cylinder for filling the soil sample 13, a water holding base 5 for supplying the soil sample 13 capillary water penetration, and a water supply with a constant water level. The device, the two ends of the soil holding cylinder are open, and it includes more than one soil holding cylinder section 1, and the adjacent two soil holding cylinder sections 1 are connected by flanges 2, and the soil holding cylinders of different heights can be set according to the needs. , the upper end of the soil holding cylinder is equipped with a sealing cover 3 to prevent water from evaporating during capillary water penetration, causing inaccurate measurement of the penetration parameters of the soil samp...

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Abstract

The invention relates to a capillary soil water climbing height measuring device which performs capillary water osmosis to a soil mass sample in a soil containing barrel by supplying water source with constant water level in the lower part of the soil containing barrel in which the soil mass sample is compacted so as to more accurately measure capillary water climbing speed, height and water content of different soil mass samples, thus providing basic data for foundation design of projects, such as freeways, airports, dams and the like. The invention can effectively prevent underground water from dipping into the foundation and keep relatively stable dry and moisture states of foundation soil.

Description

technical field [0001] The invention relates to a device for measuring the rising height of soil capillary water, which belongs to the technical field of geotechnical engineering testing. Background technique [0002] In the foundation design of highways, airports, dams and other projects, how to waterproof and keep moisture and keep the relative stability of soil moisture is a very critical issue. One of the factors that causes the change of the dry and wet state of the foundation soil is the capillary water penetration of the groundwater to the foundation soil. For example, the subgrade of a highway project is easily infiltrated by capillary water. Due to the rise of capillary water, the dry and wet state of the subgrade soil changes. , resulting in the strength reduction or instability of the subgrade, which in turn affects the strength and stability of the pavement structure. Therefore, it is necessary to prevent groundwater from infiltrating into the foundation during t...

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Application Information

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IPC IPC(8): G01N15/08
Inventor 朱志铎刘松玉郝建新
Owner SOUTHEAST UNIV
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