Silt triaxial sample preparation device

Abstract

The invention relates to a silt triaxial sample preparation device which comprises a sample preparation device, a loading consolidation device and a sample modification device, the sample preparation device comprises a chassis, at least one A module and a B module, the chassis is provided with the B module, the B module is sleeved with a guard ring, the guard ring can be sleeved with the A module, a protective cylinder is arranged at the top of the module A, and the protective rings can be connected to the upper end and the lower end of the module A in a sleeving mode; drain holes are formed in the module A and the module B, and the module A and the module B are annular split dies. By improving the sample preparation device, the modulus of each sample is equal, the uniformity degree of the sample is increased, and the drainage consolidation efficiency is improved; and manual operation in the sample cutting and trimming process is replaced by instrument operation, so that the sample manufacturing speed is increased, the sample disturbance is reduced, the smooth and balanced degree of the surface of the sample is ensured, and the reliability of the test result is improved.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to a triaxial sample preparation device for silt soil. Background technique [0002] In recent years, domestic infrastructure construction has advanced by leaps and bounds, highways and railways criss-cross, and high-rise buildings have sprung up, making land gradually scarce, and the development of weak soil areas is imperative. Silt soil is widely distributed in some inland areas and coastal areas in my country, and its components are different, and its mechanical properties are complex and changeable. Due to its multiple functions and reliable test results, the indoor triaxial test is often used in the testing of foundation soil mechanical properties. During the test, the preparation of the sample has a huge influence on the test results. When preparing the triaxial sample of silt soil, the collected silt soil is poured into the consolidation cylinder step by step, ...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the sample is easy to seal the bubbles during the process of entering the mold, and the amount of pouring in different batches is different, and the degree of local stirring is different, resulting in more bubbles inside the sample and the overall unevenness. In addition, after demolding The cutting speed is slow, and there is a large disturbance to each sample during the manual cutting process, and the degree of disturbance is different, and it is difficult to ensure the smooth and balanced surface of the sample by manual cutting, which will cause the sample to be stressed during the test. Inhomogeneity, and deviations in test results

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