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Constant-head batch measurement device of soil saturated water conductivity

A technology for measuring device and water head, which is applied to measuring device, permeability/surface area analysis, suspension and porous material analysis, etc. Simple and convenient effects to use

Pending Publication Date: 2018-07-13
LIAOCHENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Martens bottle of this device is simply used as a water container provided by the water source, and does not play the role that the Martens bottle should have.

Method used

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  • Constant-head batch measurement device of soil saturated water conductivity
  • Constant-head batch measurement device of soil saturated water conductivity
  • Constant-head batch measurement device of soil saturated water conductivity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as Figure 1-3 As shown, a batch measuring device for soil saturated hydraulic conductivity at a constant water head: comprising a water supply cabinet 1, a water supply cabinet support 2, a sample ring knife 7, a water head holding cylinder 6, a funnel stand 9, a beaker 11, and an electronic balance 12. The cabinet 1 is fixed on the support 2 of the water supply cabinet. The upper left side of the water supply cabinet 1 is provided with a water supply cabinet water inlet rubber plug 1-2. The sample ring knife 7 is inserted into the beaker 11 through the funnel frame 9, and the beaker 11 Placed on the electronic balance 12, the upper right side of the water supply tank 1 is provided with a water supply tank pressure regulating / intake pipe 1-3, the lower right side of the water supply tank 1 is connected to the water pipe 3-2, and the water pipe 3-2 is adjacent to the water supply tank 1 A main valve 3-1 is arranged on one side, and a hose 3-4 is arranged below the ...

Embodiment 2

[0027] Such as Figure 2-4 As shown, the difference from Example 1 is that the length L of the water head holding cylinder is greater than the height difference h between the lower end of the pressure regulating / intake pipe of the water tank and the upper surface of the sample ring knife soil sample.

[0028] When using this embodiment to conduct tests, it can be compatible with all series of tests where h is less than the length of the water head holding cylinder. For example, when the test adopts a water layer thickness of 10cm, the length of the head holding cylinder cannot be less than 10cm. At this time, the water head holding cylinder longer than 10cm can carry out tests on the thickness of the water layer in series of 10cm, 9cm, 8cm, ... and so on.

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Abstract

The invention discloses a constant-head batch measurement device of soil saturated water conductivity by following a measurement method of LY / T 1218-1999.Measurement of Forest Soil Permeability. The measurement device mainly comprises a water supply cabinet used for controlling water pressure according to the principle of the Markov bottle, head retaining cylinders (annular cutters), sample annular cutters, a funnel bracket, beakers and electronic scales, wherein a parallel opening is formed in the water supply cabinet; the water supply cabinet is used for supplying a stable water source by adjusting the height of a water supply cabinet pressure adjustment / air inlet pipe; a hard pipe with a valve is connected with the water supply cabinet; valves are arranged on branched pipes of the hardpipe; one end of a hose pipe is connected with the valve of each branch pipe; the other end of each hose pipe falls into each head retaining cylinder; the head retaining cylinders are arranged above the sample annular cutters; connection parts between the head retaining cylinders and the sample annular cutters are fixed by elastic sealing rubber rings; an upper plate, a lower plate, funnels and amesh plate are arranged on the water collection funnel bracket; the beakers and the electronic scales are arranged under the funnels. The device is capable of measuring single sample or simultaneouslymeasuring multiple samples according to the number of the samples, and is low and controllable in cost, convenient and simple to use and convenient in popularization and application.

Description

technical field [0001] The application relates to a measuring device for measuring soil parameters, in particular to a batch measuring device for constant water head soil saturated hydraulic conductivity. Background technique [0002] Soil saturated hydraulic conductivity is an important parameter of soil physical properties, which plays an important role in the soil water transfer model. The specific numerical value of this parameter varies greatly, and the accuracy of the measurement range is determined according to the actual application. In the "LY / T 1218-1999. Determination of Forest Soil Permeability" standard, a purely manual water head determination method is specified, but it needs to be manually measured in a laboratory, which is time-consuming and labor-intensive. The measurement error with a graduated cylinder is relatively large. At the same time, the saturated hydraulic conductivity measuring instruments sold on the market are usually complex in structure, pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/08
Inventor 苗秀莲刘传栋
Owner LIAOCHENG UNIV
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