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A Rock Expansion Pressure Tester Considering the Effect of Dry-Wet Cycle

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 rock mass occurrence environment in the drawdown zone of the bank slope

Active Publication Date: 2018-05-11
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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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  • A Rock Expansion Pressure Tester Considering the Effect of Dry-Wet Cycle
  • A Rock Expansion Pressure Tester Considering the Effect of Dry-Wet Cycle

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Embodiment Construction

[0023] Such as 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, the airtight container 8 is provided with a pressure air bag 22, the pressure air bag 22 communicates with the gas storage cylinder outside the airtight container 8, the water supply device communicates with the airtight container 8 through the water supply pipe, and the drying device passes through the air supply pipe It communicates with the airtight container 8 .

[0024] 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 device 4 is connected with the load through the...

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Abstract

A rock expansion pressure tester considering the effect of drying and wetting includes a closed container and a door-shaped frame for fixing the closed container, the upper end of the closed container is provided with a sealing cover, the closed container is provided with a pressure airbag, the pressure airbag and the closed container are provided. The external gas storage bottle is connected, the water supply device is connected with the airtight container through the water supply pipe, and the drying device is connected with the airtight container through the air supply pipe; the axial pressure device is arranged on the beam of the door frame, and the loading pressure of the axial pressure device The head is connected with the load sensor through the adapter and pre-pressed on the sealing cover; the displacement sensor is fixed on the beam of the door frame through the magnetic meter seat, the displacement sensor top rod is in contact with the sealing cover, and the rock sample is placed in the airtight container. in the test box. The advantage of the invention is that it simulates the actual occurrence environment of the bank slope ebb and flow zone, takes into account the fluctuation of the reservoir water pressure, the dry-wet cycle and the temperature coupling, so as to accurately test the expansion pressure of the 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 Patents(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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