Device and method for measuring soil body displacement in layering mode

Abstract

The invention discloses a device and a method for measuring soil body displacement in a layering mode. The device for measuring soil body displacement in a layering mode comprises a casing pipe, a pre-buried rod piece and a displacement meter. The casing pipe is buried in a measured soil body, the pre-buried rod piece is movably arranged in the casing pipe in a penetrating mode, the pre-buried rod piece comprises an extension bar, the top of the extension bar is connected with a carrier rod, the bottom of the extension bar is connected with a base, a groove is formed in the top of the carrier rod, the bottom of the base stretches out from the bottom of the casing pipe to form a chassis, the chassis is arranged on a measured point, the displacement meter is fixed over the carrier rod, a centre of the displacement meter abuts against the interior of the groove, and the center symmetric line of the displacement meter and the center symmetric line of the pre-buried rod piece are located in a same straight line. The pre-buried rod piece and the casing pipe are buried in the measured soil body in advance, then the pre-buried rod piece can generate relative displacement in the casing pipe, layering displacement of stratums is conducted to the ground, and therefore displacement of the soil body with designated depth can be measured. The device for measuring soil body displacement in a layering mode is simple and reliable in structure, can be reused, and is particularly suitable for measuring displacement of the deep soil body in a test.

Description

technical field [0001] The invention relates to a soil displacement measurement technology and a device thereof, in particular to a device and a method for layered measurement of soil displacement. Background technique [0002] In civil engineering practice and physical simulation experiments involving soil, it is often necessary to measure the displacement of soil at various depths to grasp the overall law of soil deformation. Displacement at any depth within a soil mass. However, in actual engineering, the soil is often distributed in layers. The physical and mechanical properties of the soil at different layers are very different, and the displacements under the load are also different. If only the surface displacement of the soil can be obtained, it is impossible to distinguish each The displacement of the soil layer. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a device and method for layered measuremen...

AI Technical Summary

Problems solved by technology

[0002] In civil engineering practice and physical simulation experiments involving soil, it is often necessary to measure the displacement of soil at various depths in order to grasp the overall law of soil deformation. However, common displacement meters can only measure the displacement of the soil surface and cannot Displacement at any depth inside the soil

However, in actual engineering, the soil is often distributed in layers, and the physical and mechanical properties of the soil in different layers are very different, and the displacements under the load are also different. If only the surface displacement of the soil can be obtained, it cannot be distinguished. Displacement size of layer soil

Images