A spin-down undisturbed soil triaxial sample preparation device

Abstract

The application relates to a spin-down type undisturbed soil triaxial sample preparation device, which belongs to the technical field of indoor geotechnical testing in the discipline of civil engineering. It includes a support mechanism, a cutting mechanism, and a sample-holding mechanism; the present invention drives the cutting mechanism up and down through two lifting shafts, six wedge-shaped detachable cutting blades replace manual cutting, and uses two kinds of cutting blades with different diameters to divide the soil sample Cut the cylindrical sample required for the test twice. After the sample preparation is completed, turn off the cutting speed switch, raise the cutting turntable, and take out the prepared sample. The present invention will not disturb the undisturbed soil during the cutting process, avoiding Influenced by uncertain factors and human factors in the soil cutting process, the sample preparation can be completed accurately and efficiently. Compared with the undisturbed soil cutter in the existing laboratory, the sample preparation efficiency is increased by 2 times, and the sample preparation time is about 15 minute.

Description

technical field [0001] The application relates to a spin-down type undisturbed soil triaxial sample preparation device, which belongs to the technical field of indoor geotechnical testing in the discipline of civil engineering. Background technique [0002] At present, with the continuous development of the construction industry, it is necessary to determine the mechanical properties of the undisturbed soil at the beginning of the project. Triaxial mechanical tests are usually used to provide information for the design of building structures. When the undisturbed soil is tested for triaxial mechanical tests, the cylindrical soil body with a diameter of 150 mm and a height of 200 mm should be made into a standard sample. The standard sample is usually a cylinder with a diameter of 39.1 mm and a height of 80 mm; To disturb the sample, appropriate sample preparation equipment, commonly called a soil cutter or sampler, must be used. [0003] At present, although the sample prep...

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Problems solved by technology

[0005] The present invention provides a spin-down type undisturbed triaxial sample sample preparation device to solve the problem of cumbersome operation steps in the sample preparation process of the existing sample preparation equipment, which is greatly affected by the operating proficiency of the sample preparation personnel, low sample preparation efficiency, and low sample preparation efficiency. During the sample preparation process, the disturbance of the soil sample is large, and the success rate of sample preparation is not high.

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