Self-balancing soil frost heaving experiment barrel and experiment method thereof

Abstract

The invention discloses a self-balancing soil frost heaving experiment barrel and an experiment method thereof. The self-balancing soil frost heaving experiment barrel comprises a barrel body, a cylindrical anchor rope dynamometer passage is mounted at the center of the barrel body, an organic glass top plate closely contacting with the wall of the barrel body and capable of sliding up and down is arranged at the top end of the barrel body, a hole is reserved in the center of each of the top plate and a bottom plate of the barrel body, an anchor rope dynamometer is connected with a collector through a lead, five temperature measuring holes are reserved in the height direction of the barrel wall, five water replenishing ports are arranged on the barrel wall close to the bottom of the barrel body and higher than the upper edge of a fixing support along the circumference direction, a water replenishing pipeline terminal connected with the water replenishing ports is connected with a water pressure tank with constant volume, a liquid turbine flow meter is mounted on each water replenishing pipeline, five exhaust ports are arranged on the bottom plate of the barrel body, and the bottom of the barrel body is nested with the fixing support. The experiment barrel is simple in structure, needless of a separate pressurizing device, convenient to operate and wide in application range.

Description

technical field [0001] The invention relates to a frost heave test device and a test method, in particular to a self-balancing soil frost heave test barrel for performing a frost heave test on soil, and a test method for performing a frost heave characteristic test on soil using the test barrel. Background technique [0002] Permafrost is a kind of soil rock with a temperature below 0 ℃ and containing ice. According to the duration of the frozen state, frozen soil can be divided into three categories, namely instantaneous frozen soil, seasonal frozen soil and permafrost. Seasonally frozen soil is widely distributed in all continents of the world and most of China's land. In my country, seasonally frozen soil accounts for 53.5% of the country's land area. A large number of engineering practices and research results at home and abroad have shown that frost heave is an important cause of frost damage in various projects in seasonally frozen soil areas, especially for linear pr...

AI Technical Summary

Problems solved by technology

On the one hand, reduce the use quality of railways, highways and other projects, and reduce their service life

On the other hand, the subgrade deformation caused by frost heaving will seriously affect the safe operation of railways and highways, bring huge economic losses, and have a negative impact on society

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