Electroosmosis-load combined consolidometer

Abstract

The invention discloses an electroosmosis-load combined consolidometer. An electroosmosis cathode is positioned at a central shaft of a cylinder container which is made of an insulant ,and an electroosmosis anode is arranged to cling to four walls of the cylinder container; a piston type loading cap is arranged at the top of the cylinder container; the center of the soleplate of the cylinder container is provided with a drain hole; the electroosmosis cathode and the electroosmosis anode are respectively connected with the anode and the cathode of a regulated DC power supply which supply voltage; and the loading cap is connected with a lever system which supplies mechanical pressure. The drain hole is connected with a graduated cylinder by a hose to measure the volume of water discharged from soil consolidation; a clock gauge is arranged on the loading cap to measure soil settlement; an exploring tube for measuring voltage distribution and a pore pressure sensor for measuring pressure of water in a pore are arranged in a proper depth of the soil through a pore on the loading cap according to a fixed interval; and the exploring tube and the pore pressure sensor are respectively used for measuring the potential distribution in radial direction of the soil and the pressure of the water in the pore. The invention is mainly applied in electroosmosis-load consolidation test of soft clay, dredged soil, mucky soil, etc.

Description

technical field [0001] The invention relates to a test device, in particular to an electroosmosis-loading combined consolidation instrument. Background technique [0002] The electroosmotic drainage method can overcome the shortcomings of conventional drainage methods (such as well point method and preloading method) that have obvious initial effect but slow drainage speed and unsatisfactory reinforcement effect in the later stage when dealing with soft soil and silt. Therefore, in recent years, the combination of electroosmosis, vacuum preloading, low energy dynamic compaction and other loading methods has achieved better results than pure electroosmosis or simple loading. But at present, the design and construction of this combined drainage reinforcement method mainly rely on the experience of technicians. On the one hand, because the method is relatively new, its mechanism and properties are not completely clear; on the other hand, there is a lack of accurate design calcu...

AI Technical Summary

Problems solved by technology

But at present, the design and construction of this joint drainage reinforcement method mainly rely on the experience of technicians. On the one hand, because the method is relatively new, its mechanism and properties are not completely clear; on the other hand, there is a lack of accurate design calculation parameters.

The existing indoor consolidation instrument can only consider the effect of loading, while the test device for electroosmosis or the combined action of electroosmosis and loading cannot measure the parameters of consolidation

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