Soil sample prover tank device
A technology for calibrating tanks and soil samples, which is applied in the preparation of test samples, etc., can solve problems such as uneven pressure, complicated operation, and poor drainage
Inactive Publication Date: 2007-05-23
OCEAN UNIV OF CHINA
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Problems solved by technology
The use of the existing calibration tank device proves to be a valuable tool for researching this kind of test evidence, but the supporting sample plate and the top plate of the existing calibration tank device are all plane structures, which may easily cause poor drainage during the test. Affect the test results; in addition, the bottom pressurization device uses three independent pressure bags or uses hydraulic pistons or hydraulic jacks, which is likely to cause problems such as uneven pressure or poor sealing, and the operation is complicated
Method used
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[0010] As shown in Figure 1, the present invention has a static penetration device 15, a tank cover 11, a top plate 10, and a gasket 12 therebetween, a tank body 8, a support template 4 below the tank body, a displacement sensor 14 and a bottom pressurization device 3 and the inlet and outlet pipes 19 and the bottom plate 1; the air inlet 6 around the tank body 8 and the test pressure gauge 13; the tank body 8 has a rubber membrane 9 and a sheath 7 to withstand the confining pressure. It is characterized in that the above-mentioned supporting template 4 and the top plate 10 are provided with annular and / or cross-shaped grooves 16; as shown in Fig. 3 and Fig. 4 . As another embodiment, a plurality of test holes are provided at the 1 / 2~2 / 3 radius of the existing top plate, as shown in Fig. as a drainage channel. The above-mentioned pressurizing device 3 in the vertical direction is a similar square rubber pressure bag with a larger force-bearing area. As shown in Figure 2, A i...
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The invention relates to indoor in situ simulation testing device-soil sample calibration pot device for rock and soil engineering. It includes a static contacting device, pot cover, top board and a sealing cushion, pot, sample board under the pot, shift sensor and the bottom pressing device, and water pipe and bottom board; the air inlet around the pot and the pressure meter; there has rubber film and protection cover bearing around pressure in the pot, the character is that the sample board and the top board are arranged with a ring and / or cross concave slots; considering that, the invention also can measure the criteria effect of the soil sample to be measured, there has several testing apertures on the 1 / 2-2 / 3 position of the external radius; the pressing device is designed into a pressure bag square type whose stress area is larger.
Description
technical field [0001] The invention relates to an indoor in-situ simulation test device in geotechnical engineering investigation, a soil sample calibration tank device. Background technique [0002] The function of the soil sample calibration tank device is to simulate the in-situ stress state of the underground soil layer, and provide indoor test evidence for the interpretation of the in-situ test results of static penetration testing. The use of the existing calibration tank device proves to be a valuable tool for researching this kind of test evidence, but the supporting sample plate and the top plate of the existing calibration tank device are all plane structures, which may easily cause poor drainage during the test. Affect the test results; in addition, the bottom pressurization device uses three independent pressure bags or uses hydraulic pistons or hydraulic jacks, which is likely to cause problems such as uneven pressure or poor sealing, and the operation is compl...
Claims
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IPC IPC(8): G01N1/28
Inventor 李安龙杨少丽杨荣民林霖
Owner OCEAN UNIV OF CHINA