Device for controlling deposition direction of rock mass in sample based on large triaxial test

Abstract

The invention discloses a device for controlling the deposition direction of a rock mass in a sample based on a large triaxial test. The device comprises a base; mounting frames are symmetrically arranged on the upper end face of the base; a mounting flange is arranged at the upper part of the mounting frame; the mounting flange is rotationally connected with an intermediate shaft through a connecting bearing; the end, away from the mounting flange, of the intermediate shaft is detachably connected with a limiting frame through a first connecting base for limiting the placement of a sample preparation barrel; and a transmission mechanism is arranged in the middle of the upper end face of the base through a mounting base, and an output mechanism of the transmission mechanism is rotatably connected with the limiting frame through a second connecting base. According to the device for controlling the deposition direction of the rock mass in the sample based on the large triaxial test, which belongs to the technical field of triaxial compression test equipment, the problems that in the triaxial test sample preparation process of an existing device, the sample preparation barrel is inconvenient to incline at a fixed angle, and meanwhile the whole device is suitable for sample preparation barrel specification limitation are solved.

Description

technical field [0001] The invention relates to the technical field of triaxial compression test equipment, in particular to a device for controlling the deposition direction of rock bodies inside a sample based on a large triaxial test. Background technique [0002] The triaxial test adopts a cylindrical specimen, which can exert pressure on the three coordinate directions of the specimen in space. During the test, first pass the pressurized liquid in the pressure chamber, so that the sample is subjected to the same ambient pressure σ3 in the three axial directions (the size is determined by the pressure gauge), and the whole test process is maintained unchanged. A vertical axial pressure is then applied to the specimen through the piston until the specimen is sheared. [0003] Before the start of the triaxial test, it is necessary to prepare the sample through the sample preparation barrel. During the preparation process, a device is required to tilt the sample preparatio...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a device for controlling the deposition direction of the rock body inside the sample based on the large triaxial test, which solves the problem of inconvenient tilting of the sample preparation barrel at a fixed angle during the sample preparation process of the triaxial test sample in the existing device, and at the same time The whole device is suitable for the problem of the limitation of the size of the sample preparation barrel

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