Soil capillary porosity tester and testing method thereof

A technology for measuring device and porosity, which is applied in the direction of measuring device, suspension and porous material analysis, instruments, etc. It can solve the problems of unfixed water tray, large occupied area, inaccurate test, etc., and achieves a small occupied area , to ensure normal progress and accurate test data

Pending Publication Date: 2017-03-22
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Existing soil capillary porosity measurement adopts white porcelain plate or enamel tray to fill water, and the bottom of volumetric soil extractor or ring knife is covered with filter paper or clean towel, and the bottom of filter paper is diffused dish or white porcelain plate. There are many filter papers, and the water tray is not fixed, which can easily lead to slippage, inaccurate testing, and large floor space

Method used

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  • Soil capillary porosity tester and testing method thereof
  • Soil capillary porosity tester and testing method thereof

Examples

Experimental program
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Embodiment 1

[0024] Embodiment 1: as Figure 1-Figure 2 As shown, a soil capillary porosity measuring device includes a beaker 1, a ring knife 2 and a fixed frame 3, the lower end of the ring knife 2 is sleeved on the inner bottom boss 4 of the beaker 2, and a fixed frame 3 is arranged on the upper part of the bottom end , the fixed frame 3 is an annular structure, its outer cylindrical surface is close to the bottom of the beaker 1, its upper end surface is provided with a fixed net 5 made of elastic material, the fixed net 5 is sleeved on the ring knife 2, and the bottom of the beaker 1 is provided with The coarse filter paper 6 covers the entire bottom of the beaker 1, and the top of the beaker 1 is covered with a frosted glass sheet 7.

[0025] Preferably, the diameter of the boss 4 is 0.5-1 cm larger than the diameter of the ring cutter.

[0026] Preferably, the above-mentioned fixed net 5 is provided with two layers, which can ensure a more stable placement of the ring knife and a m...

Embodiment 2

[0031] Embodiment 2: a kind of measuring method of soil capillary porosity measuring device, this method comprises the following steps:

[0032] (1) Spread the coarse filter paper on the inner bottom of the beaker and cover it on the boss, then add a certain amount of water into the beaker, the height of the water surface is lower than the height of the boss, and the excess coarse filter paper on the boss touches the water surface;

[0033] (2) Then pass the collected ring knife sample through the double-layer fixed net on the fixed frame, and place the lower end of the ring knife sample on the boss covered with coarse filter paper to ensure that the soil in the ring knife sample can be in contact with the coarse filter paper, Cover with frosted glass;

[0034] (3) Record the test time. The soil used is 4-6 hours for sandy soil and 8-12 hours for clay soil;

[0035] (4) Weigh and record as W immediately after reaching the set time 1 , after weighing, place the ring knife sam...

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Abstract

The invention discloses a soil capillary porosity tester and a testing method thereof. The soil capillary porosity tester comprises a beaker, a ring cutter and a fixing frame; the lower end of the ring cutter is sleeved on a lug boss at the bottom part in the beaker, and one section of the bottom end closing to upper part is provided with the fixing frame, and the fixing frame is an annular structure, and an outer pillar face is closely pasted to the bottom part of the beaker, and the upper end face thereof is provided with a fixing screen made of elastic materials; the fixing screen is sleeved on the ring cutter, and the bottom part of the beaker is provided with a rough filter paper; the rough filter paper covers the whole bottom part of the beaker, and the top part of the beaker is covered with a ground glass piece.

Description

technical field [0001] The invention relates to a soil capillary porosity measuring device and a measuring method thereof, belonging to the technical field of soil testing devices. Background technique [0002] Existing soil capillary porosity measurement adopts white porcelain dish or enamel tray to fill water, and the bottom of volumetric earth taker or ring knife is covered with filter paper or clean towel, and the diffuser dish or white porcelain plate under the filter paper bottom, this device has a lot of water, and the use of There are many filter papers, and the water tray is not fixed, which is easy to cause sliding, inaccurate testing, and occupies a large area. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a soil capillary porosity measuring device and its measuring method, so as to solve the problems existing in the above-mentioned prior art. [0004] The technical scheme adopted by the present inv...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/0893Y02A90/30
Inventor 段建军焦克强易香郭振
Owner GUIZHOU UNIV
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