Soil post sample making machine

Abstract

The invention belongs to the field of geotechnical tests, and discloses a soil post sample making machine. The soil post sample making machine comprises a base, a base table frame, a position limitingassembly, a driving assembly, a supporting support frame, a punching plate, a mold plate, a spring, a sample making tube and a pad block, wherein the base table frame is welded at the upper end of the base; the upper end of the supporting support frame supports the driving assembly; the driving assembly drives the punching plate to vertically slide; the mold plate horizontally slides between thebase table frame; the sample making tube is put on the mold plate; the pad block is arranged at the upper side of the sample making tube; the position limiting assembly is fixedly arranged on the basetable frame; the lower end of the spring is abutted and connected with the base. The structure is simple; the operation is convenient; precision and high efficiency are realized; in the sample makingprocess, the soil post stress is uniform; the manufactured soil posts have basically identical height, flatness and dry density; the quality of the manufactured soil posts can meet the test teachingrequirements of scientific research and college and university geotechnical tests; the manufacturing efficiency of the soil posts is greatly improved; a great amount of labor is saved.

Description

technical field [0001] The invention relates to a soil column sample making machine, which belongs to the technical field of geotechnical testing. Background technique [0002] Consolidation tests, direct shear tests, and density tests are all commonly used soil tests. The consolidation parameters of the soil sample under pressure can be obtained through the consolidation test, which can be used to evaluate the settlement amount and settlement time of the soil layer under the upper load. The shear strength parameters of the soil sample can be obtained through the direct shear test. To evaluate the strength of the soil and carry out stability calculation and analysis, the natural density of the undisturbed soil can be determined through the density test. Whether it is a consolidation test, a direct shear test or a density test, soil columns of the same size ( 6.18cm in diameter and 2.0cm in height) is the test object, and for college soil engineering tests, it is necessary t...

AI Technical Summary

Problems solved by technology

The compression method is one of the most commonly used methods for disturbing soil samples. The operation is relatively simple and the soil will not be disturbed by impact loads. However, it is difficult to maintain the same height, flatness and dry density of the samples when using the compression method. , holes may be formed in the soil body, and the static pressure demoulding is generally provided by the jack, which increases the operation process, and only one sample can be produced at a time, and the efficiency is low, which is difficult to meet the demand for large circular pie-shaped soil columns in college teaching experiments , also restricts the stable acquisition of relevant parameters of the soil column, and hinders the in-depth research and engineering application of soil column physical and mechanical parameters, so it is necessary to develop soil column sample preparation equipment

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