Multifunctional soil electroosmosis solidification device

Abstract

A multifunctional soil electroosmosis solidification device is provided with a soil sample room which consists of an outer soil sample room wall, a base at the lower end of the outer soil sample room wall and a top cover at the upper end of the outer soil sample room wall. An upper partition and a lower partition which are made of filter paper, electrodes and bearing water through plates are arranged in the soil sample room. The upper partition is provided with a loading plate. The upper and the lower electrodes are respectively connected with an upper and a lower conductive wire. The base is provided with a water discharge pipe and a water outlet. The loading plate is also provided with a water discharge pipe and a water outlet. The multifunctional soil electroosmosis solidification device can carry out electroosmosis solidification, loading solidification and electroosmosis and loading combined solidification, causes a uniform and stable one-dimensional electric field to be formed in the soil body, facilitates the calculation of relative parameters, uniforms the electroosmosis direction, the water discharge direction and the soil deforming direction, conforms to the one-dimensional electroosmosis solidification theory and provides convenience for calculation and analysis. The multifunctional soil electroosmosis solidification device can monitor main parameters in a test in the real time. Moreover, the multifunctional soil electroosmosis solidification device can measure an electroosmosis coefficient and a soil resistance so as to cause the electroosmosis solidification design to be more scientific and reasonable.

Description

technical field [0001] The invention belongs to a test instrument applied to soil electroosmosis reinforcement technology, in particular to a multifunctional soil electroosmosis consolidation instrument. Background technique [0002] When direct current is passed through the soil, under the action of potential difference, water in the soil flows from the anode to the cathode. This phenomenon is called electroosmosis. If the water accumulated in the cathode is discharged in time, the moisture content of the soil can be continuously reduced, so electroosmosis can be used to strengthen the foundation. Casagrande applied electroosmosis technology to geotechnical engineering for the first time in 1939, and scholars from various countries have carried out a lot of research work on its reinforcement mechanism and application. The electroosmotic method has the advantages of good reinforcement effect on fine particles and low permeability soil. [0003] With the rapid economic deve...

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Problems solved by technology

Dredged soil often has the characteristics of fine particles, high plasticity, and low permeability. When the conventional drainage consolidation method is used to reinforce this kind of foundation, a large settlement will occur after reinforcement, but the strength is small, and the reinforcement effect is not very ideal. Therefore, the electroosmosis method It is expected to be an effective reinforcement method for such soils

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