True three-dimensional swell-shrink instrument

Abstract

A true three-dimensional swell-shrink instrument relates to the technical field of soil sample testing devices. According to the invention, balance of droplet is placed inside the pedestal. The lower end of the pedestal is equipped with a plurality of adjustable bolts, and the upper end of the pedestal is equipped with a container, in which silicone membrane of internal suit type is equipped; both the upper and the lower ends of the silicone membrane are equipped with permeable stones; the upper end of the silicone membrane is equipped with a tray; the pedestal is equipped with at least four supports; the silicone membrane and the tray are connected with the supports by connecting rods respectively; the connecting rod between the silicone membrane and the supports is equipped with a lateral indicator; the lower end of the tray is equipped with a plurality of pervious holes. A connecting rod through the central hole of the tray is equipped above the permeable stones on the upper end of the silicone membrane, and the connecting rod is equipped with a normal indicator; a water supply system is equipped above the tray, and the container is connected with a drainage system. The true three-dimensional swell-shrink instrument provided by the invention accomplishes the objective of observing normal and lateral swelling deformation of the soil sample simultaneously in the form of seepage, and observing normal and lateral contraction distortion simultaneously without water, and the measurement is more accurate.

Description

[0001] technical field [0002] The invention relates to the technical field of soil sample detection devices, in particular to the technical field of dilatometers. [0003] Background technique [0004] Existing dilatometers for measuring cylindrical soil samples place the sample in a cylindrical container to constrain the lateral deformation, and can only be used to observe the vertical deformation of the soil sample, but cannot measure the lateral deformation of the soil sample. In addition, a cuboid dilatometer can be used, the application number is 201110160363.8, and the patent application titled "A Dilatometer" discloses that the structure is a closed cuboid container. During the test, it is filled with water. The sample is a cuboid and can be observed simultaneously. Lateral deformation, but the corners of the sample intruded into the water are easy to disintegrate, and there is confining pressure of water. [0005] Contents of the invention [0006] The purpose...

AI Technical Summary

Problems solved by technology

[0004] Existing dilatometers for measuring cylindrical soil samples place the sample in a cylindrical container to constrain the lateral deformation, which can only be used to observe the vertical deformation of the soil sample, but cannot measure the lateral deformation of the soil sample

In addition, a cuboid dilatometer can be used, the application number is 201110160363.8, and the patent application titled "A Dilatometer" discloses that the structure is a closed cuboid container. During the test, it is filled with water. The sample is a cuboid and can be observed simultaneously. Lateral deformation, but the corners of the sample intruded into the water are easy to disintegrate, and there is confining pressure of water

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