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Permeation consolidation device for measuring soil saturation and use method thereof

A saturation and soil technology, which is applied in measuring devices, permeability/surface area analysis, soil material testing, etc., can solve the problems that the testing process is easily disturbed by external conditions, and the error of the penetration test is large, so as to achieve the accuracy of the test results High, high degree of automation, the effect of saving measurement time

Pending Publication Date: 2022-04-12
SOUTHEAST UNIV
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  • Claims
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Problems solved by technology

[0004] Technical problem: In order to correctly describe the hydrodynamic coupling characteristics of the soil, the present invention adds resistivity technology to the traditional seepage consolidation instrument to measure the hydrodynamic coupling characteristics of the soil during the penetration test or consolidation test, and proposes a quantitative The seepage consolidation device for measuring soil saturation and its use method solve the problems of large errors in traditional seepage tests and the test process is easily disturbed by external conditions, save social resources, and have good economic benefits and engineering application prospects

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  • Permeation consolidation device for measuring soil saturation and use method thereof
  • Permeation consolidation device for measuring soil saturation and use method thereof
  • Permeation consolidation device for measuring soil saturation and use method thereof

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Embodiment Construction

[0028] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence.

[0030] See figure 1 and figure 2 , a osmotic consolidation device for measuring soil saturation, the test device mainly includes: a vertical micro-stepping motor (4), a stress sensor (5), a piston (7), a top plate (9), a fixed Rod (10), polyvinyl chloride side wall (11), nut piece (12), soil sample (13), electrode (14), rubber ring (15), permeable membrane (16), permeable stone (17), Base (18), polyethylene glycol solution (19).

[0031] The stainle...

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Abstract

The invention discloses a permeation consolidation device for measuring soil saturation and a use method thereof. The device mainly comprises a base, a side wall, two permeable stones, two permeable membranes, a driving part, a piston and an electrode, the side wall is arranged on the base, the two permeable stones and the side wall are encircled to form an accommodating cavity for accommodating a soil sample, the two permeable membranes are respectively attached to the corresponding permeable stones, and the permeable membranes can permeate water molecules and block polyethylene glycol molecules; the driving piece is connected with the piston so as to drive the piston to be close to or away from the permeable stone; the base and the piston are respectively provided with a channel communicated to the corresponding porous stone, the channels are used for introducing a polyethylene glycol solution, and the electrode is embedded into the side wall and partially extends into the accommodating cavity to measure the resistivity of the soil sample. The testing device is used for measuring the saturation degree in the soil consolidation test or penetration test, and has the advantages of high accuracy, high automation degree, monitoring cost saving and the like.

Description

technical field [0001] The invention relates to a seepage consolidation device for measuring soil saturation and a use method thereof, belonging to a test technology in the field of consolidation seepage of geotechnical engineering. Background technique [0002] Developments in unsaturated soil mechanics are closely related to advances in laboratory testing equipment, especially those involving suction measurement and control. Early equipment such as humidity probes, large-capacity tensiometers, and suction control systems are helpful for studying soil wetting collapse, suction stress, suction hardening, and corresponding elastoplastic models. In order to correctly describe the hydrodynamic coupling characteristics of soil, it is necessary to The hydraulic parameters of the soil were measured. Conventional osmosis tests estimate changes in hydraulic parameters by measuring water exchange through capillary tubes or by recording mass changes in polyethylene glycol solutions w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01N27/04G01N33/24
CPCY02A90/30
Inventor 王才进蔡国军武猛常建新
Owner SOUTHEAST UNIV
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