Remodeling fine grain soil test sample preparation device

Abstract

The invention relates to a remodeling fine grain soil test sample preparation device. The remodeling fine grain soil test sample preparation device is characterized in that a lower pressing plate (11) is provided with a sample preparation device consisting of a cover plate (1), a base (2) and a sample preparation cylinder (3); the lower end surface of the cover plate (1) is connected with a water permeable stone (4) as well as a sample preparation annular cutter (6); the cover plate (1) is internally provided with an air exhaust hole (8); an upper pressing plate (12) is provided with a pressure device (9). A wet soil sample is put into a sample preparation room; the pressure device presses a soil body into the annular cutter, and a prepared test sample annular cutter is taken out, and soil samples at two ends of the annular cutter are cut evenly, and the test sample preparation operation is completed. The remodeling fine grain soil test sample preparation device provided by the invention has the advantages that the problems of remodeling soil preparation unevenness and test sample dimension restriction are solved, and the problem of air exhaust during the fine grain soil sample preparation process is solved; the dry density of a test sample is controllable, and the prepared test sample has less errors; the operation is convenient; the sample discharge is simple; the preparation is rapid.

Description

[0001] technical field [0002] The invention relates to the field of geotechnical tests in the discipline of civil engineering, in particular to a device for preparing remolded fine-grained soil samples. Background technique [0003] In engineering survey and design, in order to obtain the physical, mechanical, seepage and other engineering properties of saturated or unsaturated remolded fine-grained soil, it is necessary to carry out laboratory tests on remolded soil samples. The dry density of the remolded soil can be tested on the same type of soil according to the pre-design requirements, so as to provide a reliable basis for engineering design and analysis and calculation. [0004] At present, there are two main methods for preparing remolded soil samples: (1) Compaction method: the soil sample is layered and compacted into the required test equipment by hammering, and the compacted soil sample is cut into a size slightly larger than The soil column with the diameter ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the shortcomings of poor controllability and complicated operation in making samples in the existing remolded soil sample preparation device, and provide a remolded fine-grained soil sample preparation device

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