Mould for making any surface structural surface

Abstract

The invention provides a mould for making any surface structural surface. The mould comprises two first main boards and two second main boards, the two first main boards and the two second main boardsform a movable rectangular frame, the rectangular frame is provided with a plurality of model needles, the model needles are arranged in a rectangular array, rank positions of the model needles are fixed, and the model needles can move up and down in the vertical direction; the mould is placed on a properly sized original rock structural surface, the model needles fall onto the surface of the original rock structural surface and lock, top structures of the model needles are almost equal to the surface of the original structural surface, and grit, cement, water, and a water reducing agent arepoured into the top end of the mould in proportion to prepare a sample. The mould is simple in structure and convenient to operate, and the problems that rock structure surface field sampling is difficulty, test samples are less, the test period is long, and the cost is high can be solved.

Description

technical field [0001] The invention relates to the field of rock mechanics tests, in particular to a mold for making arbitrary surface structure surfaces. Background technique [0002] Structural planes have caused many rock slope landslide hazards. Rock texture planes are geological interfaces with different origins and characteristics in rock bodies, including material differentiation planes and discontinuity planes. Due to the nature of bedrock, the problem at hand is that the methods used in traditional shear tests cannot fully reproduce the characteristics of this actual rock structure. Therefore, the study of structural planes in rock mass is the key to solving the problem of rock slope stability. [0003] The direct shear test is an important method to obtain the shear strength parameters of the structural surface. The mechanical parameters of the structural surface are obtained through the direct shear test, which provides a basis for engineering design. In the t...

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Problems solved by technology

[0005] In order to solve the problems of on-site sampling of rock structural surfaces, few test samples, long test period, and high cost, and further simplify operations, the invention provides a mold for making any surface structural surface, which is characterized in that: it includes two first main boards and two second main boards, each side of the first main board is provided with a vertical connecting groove, and the first main board is also provided with a plurality of first longitudinal grooves parallel to each other and arranged equidistantly, all the first The longitudinal grooves are arranged on the inner side of the two vertical connecting grooves, and the second main board is provided with a plurality of second longitudinal grooves parallel to each other and arranged equidistantly, and each of the two ends of the second main board passes through two The two vertical connecting slots of the first main board, and the two first main boards and the two second main boards form a rectangular frame, each of the first longitudinal slots and all the second longitudinal slots are parallel and in the The vertical direction is staggered, and a plurality of first torsion bars are arranged between the two first main boards. Both ends of each first torsion bar respectively pass through a first main board and are provided with first fasteners, so The rectangular frame is vertically covered with rectangular strip model needles, the upper part of the model needles is provided with upper perforations, the lower part is provided with lower perforations, the upper perforations and the lower perforations are vertical, all the model needles are arranged in a matrix, and each row The upper holes of the model needles are all aligned, and the lower holes of each row of the model needles are aligned, and a plurality of first connecting rods and a plurality of second connecting rods are arranged in the rectangular frame, and each of the first connecting rods The two ends pass through the first longitudinal groove on the first main board respectively, and the middle part of the first connecting rod passes through the upper holes of a row of model needles, and the two ends of each second connecting rod respectively Through a second longitudinal groove on a second main board, and the middle part of the second connecting rod passes through the lower hole of a row of model pins, the first fastener is used for locking or loosening the two The first main board, so that each of the model pins can move in the vertical direction, for simulating the structural surface

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