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Rock expansion pressure test instrument considering dry-wet circulation effect

A technology of expansion pressure, dry-wet cycle, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve problems such as the inability to simulate the occurrence environment of rock mass in the ebb and flow zone of bank slopes

Active Publication Date: 2015-12-23
CHINA THREE GORGES UNIV
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing rock expansion pressure tester cannot simulate the actual occurrence environment of the rock mass in the sinking zone of the bank slope

Method used

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  • Rock expansion pressure test instrument considering dry-wet circulation effect
  • Rock expansion pressure test instrument considering dry-wet circulation effect

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Embodiment Construction

[0022] like figure 1 , 2 Shown, a kind of rock expansion pressure tester that considers dry-wet cycle effect, comprises airtight container 8, and the door-shaped frame of fixed airtight container 8, and door-shaped frame includes frame foundation beam 3, frame column 34 and frame beam 2; The upper end of the container 8 is provided with a sealing cover 11, and the airtight container 8 is provided with a pressure air bag 22. The pressure air bag 22 communicates with the gas storage bottle 23 outside the airtight container 8, the water supply device communicates with the airtight container 8 through a water supply pipe, and the drying device communicates with the airtight container 8 through a water supply pipe. The trachea communicates with the airtight container 8 .

[0023] An axial pressing device 4 is installed on the central axis of the frame beam 2. The axial pressing device 4 is arranged on the frame beam 2 of the portal frame. The loading head 5 of the axial pressing d...

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Abstract

The invention relates to a rock expansion pressure test instrument considering dry-wet circulation effect. The test instrument comprises a sealed container and a door-shaped frame fixing the sealed container. The upper end of the sealed container is provided with a seal cover, the sealed container is internally provided with a pressure air sac, the pressure air sac is communicated with a gas bomb outside the sealed container, a feedwater unit is communicated with the sealed container through a water supply pipe, and a drying device is communicated with the sealed container through a gas supply pipe. An axial pressurization device is disposed on the cross beam of the door-shaped frame, the loading pressure head of the axial pressurization device is connected to a load sensor through a conversion adapter to preload the seal cover. A displacement sensor is fixed on the cross beam of the door-shaped frame through a magnetometer seat, the displacement sensor ejector rob is in contact with the seal cover, and a rock sample is placed in a test-piece box within the sealed container. The rock expansion pressure test instrument provided by the invention has the advantages of simulating the actual occurrence environment of reservoir bank slope hydro-fluctuation belts, considering the reservoir water pressure fluctuation change, dry-wet circulation and temperature coupling effects, and accurately testing the expansion pressure of soft rock.

Description

technical field [0001] The invention relates to the technical field of rock property testing equipment, in particular to a rock expansion pressure tester considering the dry-wet cycle effect. technical background [0002] Existing rock expansion pressure testers generally can only test the expansion pressure of rocks in a saturated state. However, when the rock and soil mass in the reservoir bank slope drawdown zone, when the water level of the reservoir rises and falls repeatedly, not only the dynamic change of the water pressure , but also in the dynamic environment of the soak-air-dry cycle. However, the existing rock expansion pressure tester cannot simulate the actual environment of the rock mass in the drawdown zone of the bank slope. Contents of the invention [0003] The purpose of the present invention is to solve the deficiencies of the above-mentioned technologies, provide a simulation of the actual environment of the bank slope water-fluctuation zone, and cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12
Inventor 邓华锋魏重洁熊田凌子李建林胡玉王哲张小景胡安龙常德龙
Owner CHINA THREE GORGES UNIV
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