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Rock fracture frost heaving deformation testing device

A technology of rock fissures and testing devices, which is applied in the field of rock mechanics testing to achieve the effects of easy processing, easy operation, and high testing accuracy

Active Publication Date: 2016-02-17
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a test device for the amount of frost heave deformation of rock cracks in view of the current status of test equipment in the field of low temperature rock mechanics

Method used

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  • Rock fracture frost heaving deformation testing device
  • Rock fracture frost heaving deformation testing device
  • Rock fracture frost heaving deformation testing device

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Embodiment 1

[0034] Combine below figure 1 , figure 2 , image 3 The present invention is described in detail with examples.

[0035] A test device for frost heaving deformation of rock cracks, which consists of a base plate 1, a first base 2a, a second base 2b, a third base 2c, a fourth base 2d, a frame 3, a fastening support 4, and a fastening bolt 5 , rubber gasket 6, fastening block 7, first positioning block 8a, second positioning block 8b, first measuring point fixed web 9a, second measuring point fixed web 9b, wire laying plate 10, slide Groove 11, slider 12, measuring point positioning screw 13, strain gauge 14, strain gauge laying strip 15, quartz glass sheet 16, compensation block placement groove 17, temperature compensation strain gauge, 18, wire 19, rock block 20, crack 21 constitute.

[0036]The connection relationship is: the bottom plate 1 is made of Q235 steel, and the bottom of the bottom plate 1 is installed with the first base 2a, the second base 2b, the third bas...

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Abstract

The invention discloses a rock fracture frost heaving deformation testing device. The bottom of a bottom plate is provided with screw holes, and bases are mounted at the bottom of the bottom plate. A frame is welded to the bottom plate. A fastening support and a fastening stop dog are welded to the bottom plate. A fastening bolt is mounted on the fastening support. A rubber gasket is arranged at the tail end of the fastening bolt. Locating stop dogs are welded to the bottom plate. The two ends of each test point fixing web are welded to the bottom plate and the frame respectively. The fixing webs are provided with slide grooves and compensation block containing grooves. Slide blocks are arranged at the two ends of a strain sheet laying strip and embedded in the slide grooves. Test point locating screws are arranged on the slide blocks. A strain sheet is pasted to the strain sheet laying strip and connected with a wire. A temperature compensation strain sheet is pasted to quartz glass. A wire laying plate is mounted between the bottom plate and the frame. The wire is led out of the wire laying plate. The rock fracture frost heaving deformation testing device is simple in structure, high in test accuracy and capable of accurately and continuously testing frost heaving deformation of rock mass factures in the frost heaving process to obtain fracture deformation characteristics at different frost heaving stages.

Description

technical field [0001] The present invention relates to a technical field of rock mechanics test, more specifically to a test device for frost heave deformation of rock fissures, which is suitable for freezing primary cracks in hard rocks such as granite and sandstone and medium-hard rocks, and prefabricated cracks in artificial materials such as concrete. Swelling measurement. Background technique [0002] Freezing damage seriously threatens the safety and stability of engineering rock mass and concrete structures in cold regions. The main factor inducing freezing damage to rock mass is that the water in cracks produces frost heave in low temperature environment, which causes rock mass damage. Studying the law of frost heave deformation of different rock types and cracks with different openings is very important for revealing the freeze-thaw damage mechanism of rock mass and the design of freeze damage prevention for rock mass engineering. [0003] At present, the researc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/14
Inventor 康永水刘泉声朱元广黄兴刘学伟黄诗冰雷广峰张静
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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