Large model test box for studying electroosmosis consolidation treated soft soil foundation

A soft soil foundation and model box technology, applied in the direction of material analysis, measuring devices, instruments, etc. by electromagnetic means, can solve problems such as differences, differences in soft soil consolidation treatment, etc.

Inactive Publication Date: 2012-03-28
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this instrument is mainly used for the mechanism analysis of electroosmotic consolidation. Although the instrument forms a uniform and stable one-dimensional electric field in the soil, the electroosmotic direction, drainage direction and soil deformation direction are consistent, which is consistent with one-dimensional electroosmotic consolidation. Theory can facilitate calculation and analysis, but there are differences from the actual project where electrodes are vertically inserted into the soil for soft soil consolidation treatment, and there are also certain differences between the one-dimensional electroosmotic consolidation theory and the actual electroosmotic consolidation mechanism

Method used

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  • Large model test box for studying electroosmosis consolidation treated soft soil foundation
  • Large model test box for studying electroosmosis consolidation treated soft soil foundation
  • Large model test box for studying electroosmosis consolidation treated soft soil foundation

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Embodiment Construction

[0028] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029]During the experiment, the electrode 2 can be inserted into the openings 4 of the bottom plate at both ends of the tempered glass model box 1, which can be in the form of round pipes such as steel bars and steel pipes, and the vertical fixation of the electrode 2 can be achieved by binding geogrids and using soil samples 15 to bury and fix. The holes 4 at both ends of the bottom plate are used as drainage holes; during the experiment, the electrodes 2 can be inserted into the positions of the two rows of holes 4 at both ends of the model box 1, which can be in the form of metal mesh, perforated metal plates, etc. 1. The electrode 2 is vertically fixed by burying and fixing the soil sample 15, and the openings 4 at both ends of the bottom plate or the openings 3 on the side plate are used as drainage holes.

[0030] During the experiment, close th...

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Abstract

The invention relates to a novel model box testing device for an electroosmosis consolidation treated soft soil foundation. Electroosmosis consolidation can be simulated in a way of better approaching actual conditions through opening setting, dimension setting and strength setting of the testing device, device installation in a test, and various treatment means in test process control to consolidate the soft soil foundation. The model box can simulate electroosmosis consolidation, preloading, vacuum preloading, forced ramming and other foundation treating technologies to jointly treat the foundation. Besides functions of controlling electrification, being suitable for different electrode materials and controlling properties of a soil sample of the traditional electroosmosis consolidationtesting device, the model box has the advantage that different electrode arrangement forms and the application of an electrode conversion technology are fully considered, and has main characteristicsof economy, simpleness and multiple functions.

Description

technical field [0001] The invention relates to a new type of model box test device for electroosmotic consolidation treatment of soft soil foundation, which can simulate electroosmotic consolidation combined with various foundation treatment technologies such as surcharge preloading, vacuum preloading, and dynamic compaction for foundation treatment. And fully consider the impact of various factors. Background technique [0002] When a direct current is passed through the soil sample, under the action of the electric field, the water in the soil easily combines with cations to form hydrated cations and flows 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 c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00
Inventor 王军蔡袁强刘飞禹张乐杨芳丁光亚胡秀青
Owner WENZHOU UNIVERSITY
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