A kind of remodeling soil sample preparation device

Abstract

The invention discloses a remoulding soil sample preparation device, comprising a base, a sample containing mould, a compacting instrument, a positioning device, a clamping rod and a bearing plate, wherein the sample containing mould is fixedly arranged on the base; the positioning device is sheathed on the clamping rod, is vertically moved along the body of the clamping rod, is rotated by a set angle along the horizontal direction, and is clamped on the clamping rod by a clamping mechanism to position the height of a sample; the compacting device and the bearing plate are respectively and fixedly arranged at both ends of the clamping rod; the diameter of the compacting device is matched with the inner diameter of the sample containing mould, the inner diameter of the positioning device is matched with the size of the clamping rod, and the outer diameter of the positioning device is greater than the outer diameter of the sample containing mould; after the compacting device compacts the sample, the bottom end surface of the positioning device is connected with the top end surface of an opening of the sample containing mould to prepare the sample; by changing the height of the sample positioned by the positioning device on the clamping rod, soil samples with different heights can be prepared. The remoulding soil sample preparation device has the advantages that the structure is simple, the operation is convenient, the accuracy is higher, the suitability is wide, and the number of sample compacting layers and the sample compacting height of each single layer can be flexibly changed according to different heights of the prepared samples.

Description

Technical field [0001] The invention relates to a sample preparation device, in particular to a remodeled soil sample preparation device, and belongs to a sample preparation device used for geotechnical tests in the technical field of civil engineering. Background technique [0002] Indoor tests can accurately obtain various strength indexes required for soil engineering design so as to be stored as design and construction data. Usually the test soil samples can be divided into undisturbed soil samples and remolded soil samples. The undisturbed soil sample can better reflect the original structural state of the soil, but it is highly sensitive to changes in the test environment and conditions, that is, small changes in test conditions can cause huge changes in test results. Because the test results of undisturbed soil are highly discrete, the soil samples for indoor tests are usually remolded soil samples with stable properties and small test results. [0003] At present, the com...

AI Technical Summary

Problems solved by technology

However, the height of each sample layer determined by these two invention patents is fixed. When the total height of the soil sample changes or the total height is no longer an integral multiple of the preset height of each layer of sample, the sample preparation device will no longer work

Images