Simple test piece making mould for irregular rock direct shear test
A technology of irregularity and moulds, which is applied in the manufacture of tools, preparation of test samples, ceramic molding machines, etc., can solve the difficulty of rock shear strength, fault gouges, fracture fracture zones and structural surfaces that are difficult to process and obtain Rock test blocks and other problems, to achieve the effect of convenient and quick disassembly, simple structure, and convenient operation
Inactive Publication Date: 2019-06-21
NORTHEASTERN UNIV
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Problems solved by technology
[0004] At present, most of the existing technologies can only conduct direct shear tests on rocks by making rock specimens into regular specimens, and it is difficult to process rock masses of standard sizes such as fault gouges, fractured fracture zones, and structural surfaces.
However, the construction environment encountered in the project is complex and changeable, and rock masses with broken structures cut by various joints and fissures are often encountered. It is difficult to obtain relatively complete rock test blocks. The weak structural plane and the shear strength of the rock itself caused great difficulty
Method used
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Embodiment 1
[0039] A simple specimen-making mold for the direct shear test of irregular rocks, the mold includes a first mold and a second mold, the first mold and the second mold both include a base, two side plates, three partitions and stud bolts , where the structural schematic diagram of the first mold is shown as figure 1 As shown, including a first base 1, two first side plates 2, and three first partition plates 3, the two first side plates 2 of the first mold are installed on the front and rear sides of the first base 1 respectively, and can be passed through The base is provided with grooves that can be inserted into the first side plates 2 to fix the two first side plates 2; the front and rear ends of the two side plates are respectively connected by the first stud bolts 5 and nuts, The inner side is provided with a concave tenon groove, and the two sides and the middle of the first side plate are provided with a concave tenon groove, and the three first partitions 3 are respec...
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The invention relates to a simple test piece making mould for an irregular rock direct shear test. The mould comprises a first mould and a second mould. The first mould and the second mould respectively comprise a base, two side plates, three separating plates and a stud bolt. The front and rear sides of the base are respectively provided with a groove. The two side plates are inserted into the grooves. The two ends of the two side plates are fixedly connected with nuts by the stud bolts. The inward-facing side surfaces of the two side plates are provided with concave tenon grooves on both sides and in the middle positions. The separating plates are inserted and clamped in the concave tenon grooves, and the three separating plates separate the middle of the two side plates into two mould cavities. In addition, the two side plates of the first mould are provided with protrusions corresponding to the upper ends of the mould cavities, and the protrusions are provided with bolt holes and capped bolts are arranged in the bolt holes. The mould has the advantages of simple structure, convenient use and operation, convenient and rapid disassembling and assembling, simple cost and can makeirregular rock test pieces into standard direct shear test pieces quickly and efficiently.
Description
technical field [0001] The invention relates to a simple mold for making specimens for irregular rock direct shear tests, belonging to the field of rock mechanics test equipment. Background technique [0002] Rock is one of the materials that make up the crust and the main component of the earth's lithosphere. In human production practice, it has established a close relationship with rock mechanics very early. Rock is a common raw material in the field of construction engineering, and it is also widely used in civil engineering structural experiments. Many accidents in engineering are caused by the deformation of rocks. Therefore, the deformation of rock has a great influence on the safety and firmness of engineering buildings. [0003] The shear strength of rock refers to the ability of rock to resist shear failure. The shear strength test of rock is relatively complicated, and the shear strength is the main characteristic of rock, but in actual engineering, rock is in a...
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IPC IPC(8): G01N1/36B28B7/00
Inventor 贾蓬王德超吴振东杨楠王晓帅杨其要李磊杜功成任云阳梁立民
Owner NORTHEASTERN UNIV