Compound vacuum negative pressure soft foundation solidification technology indoor simulation analysis meter

Abstract

The invention discloses a compound vacuum negative pressure soft foundation solidification technology indoor simulation analysis meter. A counterforce plate can be placed and fixed on a stand column at the upper part of a model slot; a compression airbag and a bearing plate are arranged below the counterforce plate in sequence; a pore pressure sensor, an electric potential sensor and a compressible drainage electrode can be inserted in a soil sample according to a predesigned arrangement manner; wires at ends of the pore pressure sensor, the electric potential sensor and the compressible drainage electrode are respectively connected with a pore pressure data acquisition instrument, an electric potential acquisition instrument and an electric osmosis automatic controller through wire conduits; the end of the compressible drainage electrode in a sand cushion clings to a horizontal drainage pipe; and the horizontal drainage pipe is connected with a water-gas separation bottle through a rubber hose. According to the compound vacuum negative pressure soft foundation solidification technology indoor simulation analysis meter, the amplitude of the vacuum degree in the soil mass can be regulated and controlled and an electric osmosis electrode can be arranged according to the design requirement; and by combining the automatic intermittent electrification and electrode conversion technology, the distribution form of the seepage field, the stress field and the electric field of the soil mass in the engineering practice are comprehensively demonstrated, and quantified indoor simulation and analysis with electric osmosis, vacuum and preloading combined compound negative pressure solidification technology effect can be carried out on the soil mass.

Description

technical field [0001] The invention relates to a test device, in particular to a compound vacuum negative pressure soft foundation reinforcement technology indoor simulation analyzer. Background technique [0002] With the rapid development of my country's economy, the demand for land in coastal areas, especially in economically developed areas, continues to increase, and the contradiction between supply and demand of land resources has become increasingly prominent. Artificial foundation filling and land reclamation technology provide a new solution to this problem The idea and approach of this paper have been rapidly popularized and applied in the past 20 to 30 years. At present, many coastal areas of our country are planning or implementing land reclamation projects to drive the rapid development of the local economy. [0003] However, due to the special engineering nature of dredger fill, its foundation treatment often becomes a difficult point in production and constru...

AI Technical Summary

Problems solved by technology

In addition, the proven effective electrode switching and intermittent energization technologies in electroosmosis were not included in the test simulation process, and the impact of these two technological innovations on the reinforcement effect cannot be demonstrated; the electroosmosis consolidation treatment soft soil model can only Two rows of electrodes with fixed positions cannot pass the comparison test between different electrode spacings to optimize the test plan, and cannot simulate complex and changeable actual engineering conditions

[0009] (3) In addition, the electro-osmosis combined loading and consolidation instrument and the vacuum combined electro-osmosis consolidation instrument are both a combination of two methods, and the test structure cannot apply the third treatment method to the soil, which is soft soil treated by electro-osmosis consolidation. Although the model can carry out combined tests of the three methods, it has deficiencies in the loading system, vacuum preloading system, and electroosmotic system

Therefore, none of the above patents can comprehensively and truly simulate the actual situation of compound vacuum negative pressure consolidation technology to strengthen soft soil foundations, and it is difficult to serve the actual engineering application of this method

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