Device capable of simultaneously preparing multiple triaxial disturbed soil samples

Abstract

The invention relates to a device capable of simultaneously preparing multiple triaxial disturbed soil samples, and belongs to the field of soil engineering testing. The device capable of simultaneously preparing the multiple triaxial disturbed soil samples comprises a die forming frame (1), a jack (2), a base plate (3), sample loading devices (4), fixed pistons (5), size troughs (6) and a size snap-gauge (7), wherein the jack (2) is arranged on the lower part of the die forming frame (1); the base plate (3) is arranged on the jack (2); the sample loading devices (4) are respectively placed inupper groove of the base plate (3); the fixed pistons (5) are fixed on the upper part of the die forming frame (1); the size troughs (6) are placed on a left frame rod and a right frame rod of the die forming frame (1); the size snap-gauge (7) is placed in the size troughs (6). The device has the advantages of simple structure and convenience in operation, working efficiency and sample making quality are improved through a semi-mechanization operation, human impact factors are avoided, and the device is suitable for all soil types of which the specimen particle size is smaller than 2cm.

Description

technical field [0001] The invention relates to a device capable of simultaneously preparing multiple triaxial disturbed soil samples, belonging to the field of geotechnical testing. Background technique [0002] With the advancement of modern engineering technology, the accumulation height of the tailings sand in the tailings pond has grown from more than ten meters to hundreds of meters, and the difficulty of the tailings pond survey project has been greatly increased. It is required to carry out triaxial compression and dynamic characteristic tests, simulation Dynamic analysis of the stress state of tailings sandy soil. However, triaxial compression and dynamic tests have high requirements on the quality and quantity of samples, and it is difficult to obtain original samples or the success rate of original samples is low in field work. The usual practice is as follows: ① Take a certain number of original samples Carry out indoor routine tests and some triaxial compressio...

AI Technical Summary

Problems solved by technology

The one-way impact load causes the lower end of the sample to receive more compaction than the upper end, resulting in uneven density

[0005] (2) The compaction of each layer of soil samples is manually operated, which has a great subjective influence, and it is difficult to ensure that the guide rod of the compaction hammer remains vertical during the compaction process, resulting in uneven surface of the sample

[0006] (3) To prepare soil samples with high density, too many hammering times are required, and only single-point sample preparation is required, which is time-consuming, labor-intensive, and inefficient

[0007] The device provided by the present invention that can simultaneously prepare multiple triaxial disturbed soil samples has not been found in the same public reports as the present invention through literature search

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