Tubular EKG gradual advancing electrochemical grouting soft foundation reinforcement experiment method and device

Abstract

The invention discloses a tubular EKG gradual advancing electrochemical grouting soft foundation reinforcement experiment method and device. According to the method, vacuum preloading and an electrochemical grouting reinforcement method are combined together, secondary reinforcement is conducted on a soil body by means of electrically conductive, groutable and corrosion-resistant functions of EKG tubes, and meanwhile grouting is conducted in a separate grouting mode. The device comprises an organic glass model tank, the EKG tubes are novel electrically-conductive plastic drain tubes, two groups of copper wires penetrate through and are symmetrically inserted into the tube walls, the EKG tubes can serve as electroosmosis electrodes, vertical drainage channels and electrochemical grouting tubes simultaneously, and the positions of the cathode, the anode and the middle position are each provided with a PVC tube with holes; the bottom plate cathode of the model tank is provided with a hole which is sealed with a rubber plug, the copper wires in the EKG tubes can be connected with an external power supply through wires, and the EKG tubes are arranged on the two sides of the model tank in the length direction. By means of the tubular EKG gradual advancing electrochemical grouting soft foundation reinforcement experiment method and device, the drainage amount, potential and current changes and the like of the soil body can be monitored accurately, the soil body reinforcement effect is improved, the soft foundation bearing capacity is improved, and the reinforcement effect is more uniform.

Description

technical field [0001] The invention relates to a tubular EKG layered electrochemical grouting soft foundation reinforcement test method and device, and belongs to the technical field of soil reinforcement. Background technique [0002] Although my country has a vast territory, the distribution of soil utilization is very uneven. Most of the population lives in the eastern coastal area, and most of the foundations in this area are composed of dredging fill, marine soft soil, and silty soft soil. The foundations formed by these soils have the characteristics of high water content, low bearing capacity, and high compressibility, which often lead to some foreseeable engineering problems. At present, there are many soft foundation reinforcement methods for the above-mentioned foundations, such as soil replacement method, vibration compaction, compaction method, replacement method, reinforcement method, cementation method, cold and heat treatment method, etc. However, such foun...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a tubular EKG (Electrokinetic Geosynthetics) layered electrochemical grouting soft foundation reinforcement test method and device, which solves the problem that the existing methods are limited in improving the strength of the soil

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