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Test method for measuring humidification, disintegration and dispersion of soil mass

A test method and soil technology, applied in disintegration and dispersion tests, and in the field of measuring soil moisture, can solve the problems of large measurement errors, many human factors, inaccurate calculation results, etc., and achieve clear meaning of physical concepts, Reduce the interference of human factors, and the effect of accurate and reliable test results

Inactive Publication Date: 2012-07-11
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively large measurement error of the volume change during the test, and the need to observe the instantaneous reading with the naked eye, there are many human factors and the calculation results are inaccurate

Method used

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  • Test method for measuring humidification, disintegration and dispersion of soil mass
  • Test method for measuring humidification, disintegration and dispersion of soil mass
  • Test method for measuring humidification, disintegration and dispersion of soil mass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] equipment:

[0062] 1. Bracket: a test bracket composed of a titration table and a cross, which can hang a digital push-pull gauge.

[0063] 2. Beaker: 2000ml beaker.

[0064] 3. Stencil: 10cm×10cm, metal square grid, hole 1cm2, can be hung under the digital push-pull gauge.

[0065] 4. Sample: a cube with side length 5cm×5cm×5cm.

[0066] 5. Digital display push-pull gauge: use a digital display push-pull gauge with a range of 10N or 20N and an accuracy of 0.005N or 0.01N, which can be connected to a computer to simultaneously display the test force curve and record the test process.

[0067] 6. Electronic computer: Commonly used electronic computer is connected with the digital push-pull force meter to record and save the test data.

[0068] Assembly method (see figure 1 ):

[0069] 1. Connect the digital push-pull force gauge to the computer with a data cable.

[0070] 2. Stabilize the bracket, hang the digital display push-pull gauge on the bracket, and then han...

Embodiment 2

[0092] equipment:

[0093] 1. Bracket: The test bracket is composed of a titration table and a cross, which can hang the mesh plate.

[0094] 2. Beaker: 2000ml beaker.

[0095] 3. Mesh plate: 10cm×10cm, metal square grid, hole 1cm2, can be hung under the bracket.

[0096] 4. Sample: a cube with side length 5cm×5cm×5cm.

[0097] 5. Electronic balance: use an electronic balance with a measuring range of 1kg or 2kg and an accuracy of 0.01g or 0.05g, which can be connected to a computer through a data cable to simultaneously display and record changes in mass.

[0098] 6. Electronic computer: Commonly used electronic computer, connected with electronic balance, records and saves test data.

[0099] Assembly method (see figure 2 ):

[0100] 1. Connect the electronic balance to the electronic computer through the data line.

[0101] 2. Stabilize the bracket, and hang the mesh panel on the bracket with a hanging wire.

[0102] 3. Put the beaker containing the aqueous solution...

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Abstract

The invention discloses a test method for measuring humidification, disintegration and dispersion of a soil mass. The test method comprises the following steps: preparing a device for immediately measuring the change in weight of the soil mass, wherein the device comprises a bracket, a beaker, a netted plate, an electronic balance, a digital display type tension gauge, an electronic computer, and the like; placing the soil mass into a water solution for disintegrating; and utilizing the change in weight of the soil mass to calculate the disintegrating volume and disintegrating speed of the soil mass. The physical conception significance of the device is clear and definite; the data is automatically and immediately collected; the personal factor interference is reduced; a test result is accurate and reliable; the magnitude of the disintegrating volume of the soil mass under different medium environmental conditions is reflected; the disintegrating volume and disintegrating speed of the structural viscid soil mass in water are accurately measured; the test method is used for evaluating the demands of various projects on the soil mass and especially has an important significance in judging the dispersibility of the viscid soil; a humidifying test based on an existing standard regulation is replaced by the test method; and the method is applied to evaluating the humidification, the disintegration and the dispersion of the soil mass in hydroelectric engineering, road engineering, agricultural engineering, and the like.

Description

technical field [0001] The invention belongs to the technical field of civil engineering testing, in particular to a test method for measuring soil wetting, disintegration and dispersion. Soil wetting, disintegration and dispersibility. Background technique [0002] In hydropower projects, road projects, agricultural projects, embankment projects, etc., where soil is used as building materials, the surface layer is directly exposed to the atmospheric environment. The moisture content in the soil is often affected by atmospheric precipitation and water level alternation, and the surface soil is prone to humidification. , disintegration and dispersion, so that cracking and spalling reduce the strength and stability of the soil. In addition, in the design and construction of wet dams, it is necessary to know the speed of soil material wetting and disintegration, as a basis for selecting stockyards. More importantly, an important characteristic of discriminating dispersed soil...

Claims

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Application Information

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IPC IPC(8): G01N33/24
Inventor 樊恒辉赵高文孔令伟高建恩侯斯嘉
Owner NORTHWEST A & F UNIV
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