Sample preparation equipment of triaxial sample for simulating overall process erosion

Abstract

The invention relates to the field of indoor civil engineering test of a civil engineering subject, in particular to sample preparation equipment of a triaxial sample for simulating overall process erosion. The sample preparation equipment of the triaxial sample for simulating the overall process erosion comprises a pressing mechanism, a sample bearing mechanism, a supporting mechanism, an erosionmechanism, a cutting mechanism, a soil injecting device and a triaxial membrane bearing barrel. The sample bearing mechanism is mounted on the supporting mechanism, cemented soil is injected into thesample bearing mechanism through the soil injecting device, the sample bearing mechanism is placed into the erosion mechanism, the pressing mechanism can cooperate with the sample bearing mechanism to press the cemented soil to obtain a parent body sample, the parent body sample is cut into the standard triaxial sample through the cutting mechanism after being placed into the triaxial membrane bearing barrel, the sample bearing mechanism comprises a sample bearing barrel, annular holes are uniformly distributed in the barrel wall of the sample bearing barrel, and a semipermeable membrane is arranged on the inner wall of a hole of the sample bearing barrel. By adopting the scheme, the problems that an existing high-water content cemented soil triaxial sample is difficult to manufacture, and simulating degree of true force and erodent condition of the cemented soil on site is not high are solved.

Description

technical field [0001] The invention relates to the field of indoor geotechnical testing of civil engineering, in particular to a sample preparation device for simulating a triaxial sample of the whole process of erosion. Background technique [0002] The southeast coastal area is an economically developed area in my country. With the continuous expansion of the building foundation area in the coastal area, more and more buildings need to be built on soft soil foundations. Because of its high water content and poor bearing capacity, soft soil makes it difficult to build large buildings in soft soil areas. The treatment of soft soil foundations has become a problem that the construction industry must face. Low cost, strong practicability, low environmental pollution and fast construction are widely used. [0003] At the same time, the groundwater in the southeastern coastal areas has the characteristics of high salt content and weak alkalinity, and the depth of the cement-so...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a sample preparation equipment for triaxial samples simulating the whole process of erosion, so as to solve the existing difficulties in making triaxial samples of cement soil with high moisture content, and the real stress and erosion of cement soil on site. Problems such as the degree of simulation of the situation is not high

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