Geotechnical High Pressure Penetrometer
A permeameter and high pressure technology, applied in the field of permeameter, can solve the problem of no penetration test conditions, and achieve the effect of stable pressure and convenient testing.
Active Publication Date: 2016-07-06
YELLOW RIVER ENG CONSULTING +1
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Problems solved by technology
Some researchers use equipment such as soil triaxial meter and consolidation meter to indirectly test the permeability coefficient of soil, but this test method does not have strict permeability test conditions, and the test results are for reference only
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Embodiment Construction
[0014] Such as figure 1 As shown, the geotechnical high-pressure osmometer of the present invention includes a high-pressure container, and the high-pressure container is divided into an upstream section 1, a sample carrying section 2, and a downstream section 3 from top to bottom; the sample carrying section 2 and the downstream section 3 A water-permeable orifice 4 is arranged between them for isolation; the upstream section 1 of the high-pressure container communicates with the bottom of the high-pressure water storage tank 5 through a pipeline; Pass; The pressure tester 8 is installed on the wall of the high-pressure vessel located in the upstream section 1, and the water temperature tester 9 and the water outlet 10 are installed on the wall of the high-pressure vessel located in the downstream section 3.
[0015] The working principle of the present invention is briefly described as follows:
[0016] When performing a penetration test, first place the sample to be tested...
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The invention discloses a geotechnical high-pressure osmometer, which comprises a high-pressure container, and the high-pressure container is divided into an upstream section, a sample carrying section, and a downstream section from top to bottom; the sample carrying section and the downstream section are separated by a water-permeable orifice; The upstream section of the high-pressure container is connected to the bottom of the high-pressure water storage tank through a pipeline; the upper part of the high-pressure water storage tank is connected to the gas storage tank through a filter pressure reducing valve; A water temperature tester and a drain are arranged on the wall of the high-pressure container. The present invention has the advantages of realizing the penetration test of soil with extremely weak permeability and modified soil conveniently, which is embodied as follows: 1. Any continuously adjustable test pressure between 0 and 2 MPa can be applied according to the test requirements; 2. The test pressure during the test The pressure is stable and reliable; 3. When the sample is subjected to the test pressure, there will be no misalignment with the side wall of the high-pressure vessel; 4. The pressure and water temperature data during the test are intuitively displayed, and it is convenient to test the amount of water flowing through the sample.
Description
technical field [0001] The invention relates to a osmometer, in particular to a geotechnical high-pressure osmometer. Background technique [0002] Natural soil is an important building material in civil engineering construction, and the permeability of soil is one of the important technical indicators, which reflects the property of liquid penetrating through the soil. Seepage flow, seepage deformation and seepage control in civil engineering all need to master the law of soil seepage. The permeability coefficient of soil in civil engineering is generally within the range, but the commonly used geotechnical infiltration meter cannot effectively complete the permeability test with the permeability coefficient within the range. [0003] With the development of engineering technology, more and more new materials are used. Like natural soil, some special materials also need to test their permeability coefficient, such as modified soil such as cement soil and lime soil. Some ...
Claims
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IPC IPC(8): G01N15/08
Inventor 邓伟杰金义德房后国张广禹于洋
Owner YELLOW RIVER ENG CONSULTING