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Tension experiment device and method of columnar jointing structural surface

A technology of columnar joints and experimental devices, which is applied in the direction of applying stable tension/pressure to test the strength of materials, can solve the problems of difficult stretching of irregular joint surfaces, and achieves convenient operation, simple structure, effective and rapid tensile test. Effect

Active Publication Date: 2014-03-19
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The purpose of the present invention is to aim at the above-mentioned problems existing in the prior art, to provide an experimental device for stretching a columnar joint structural surface, and to provide an experimental method for stretching a columnar joint structural surface, which solves the problems in the prior art. The Difficult Tensile Test of Irregular Joints in Regular Rock Blocks

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0038] An experimental method for tensioning of columnar joint structural surface. According to the characteristics of columnar jointed rock mass, the test device of changing pressure to tension is redesigned. Mainly reflected in: the device mainly includes three parts: pressure bearing device, fixed sample placement device, and sample bonding device;

[0039] Among them, the pressure bearing device includes three parts: the bearing plate 5, the adhesive plate 13 at the lower end of the sample, and the connecting rod 6. The bearing plate 5 is mainly used to bear the load applied by the press, and the adhesive plate 13 is mainly used to hold the sample. The lower end is connected with the bonding plate, and the connecting rod 6 connects the bearing plate with the bonding plate.

[0040] The fixed sample device runs through the three parts of the ir...

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Abstract

The invention discloses a tension experiment device of a columnar jointing structural surface. The tension experiment device comprises a tester base, two screw rods, an adhesion plate and a carrying plate, wherein the two screw rods are arranged on the tester base; two ends of a penetration iron rod are movably connected with the two screw rods respectively; the penetration iron rod penetrates through a cylindrical iron plate; the cylindrical iron plate is connected with an upper-end-surface iron plate; the carrying plate is arranged above the adhesion plate; the adhesion plate is connected with the carrying plate through a connecting rod and is connected with a lower-end-surface iron plate; the upper and lower end surfaces of a columnar jointed rock are adhered to the upper-end-surface iron plate and the lower-end-surface iron plate respectively. The invention also discloses a tension experiment method of the columnar jointing structural surface. The method has the advantages of simple structure and convenience in operation; the tension experiment can be performed on the columnar jointing structural surface effectively and quickly; sample processing is not needed, and breakage or weakening caused by processing of the jointed rock is avoided; the method is suitable for the large-scale rock sample experiment and facilitates the dimensional effect on rock research.

Description

technical field [0001] The invention belongs to the field of rock mechanics, in particular to an experimental device for stretching a columnar joint structural surface, and also relates to an experimental method for stretching a columnar joint structural surface, which is suitable for stretching when irregular rock blocks contain irregular joint surfaces experimental occasions. Background technique [0002] There are a large number of structural planes in the rock mass, which makes the rock mass easily deformed and damaged along these structural planes. Therefore, the mechanical properties of the structural planes, especially the determination of the tensile strength, have always been one of the key points in the study of the mechanical properties of the rock mass. Tensile tests generally include three types, namely, direct tensile test, variable pressure to tensile test, and Brazilian disc test. The direct tensile test needs to make the sample into a dumbbell shape, instal...

Claims

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Application Information

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IPC IPC(8): G01N3/08
Inventor 郝宪杰冯夏庭江权徐鼎平李邵军李帅军段淑倩周扬一崔洁
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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