Novel independent well point water collecting and draining united vacuum preloading strengthening method and strengthening system

Abstract

The invention discloses a novel independent well point water collecting and draining united vacuum preloading strengthening method and strengthening system. The method includes the steps that a land area is selected, and a vacuum preloading scope is set; all independent well points and sensors in the well points are distributed and controlled; a sinking pump and evacuating equipment are installed; horizontal drain pipes and drain boards are distributed; sealing separation is carried out; and vacuum preloading, vacuum well point dewatering and unloading after completion of strengthening are carried out. The novel independent well point water collecting and draining united vacuum preloading strengthening method and strengthening system have the beneficial effects that a pervious layer in a soil layer enables all independent well points and the drain boards to be organically combined into a communicating vessel, and an independent well point water collecting and draining system serves as a main water collecting and draining body of a deep layer soil body; through two independent systems, air exhausting work and water drainage work are done, deep phreatic water in a foundation is gathered into the well points to be drained out of the foundation, the problem of the poor deep layer soil body strengthening effect caused by process defects of traditional vacuum preloading is fundamentally solved, the working period is shortened while the strengthening effect is strengthened, resources and cost are saved, and environmental protection and economical efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of soft foundation treatment of civil engineering foundations and foundations, in particular to a novel independent well point collection and drainage combined with vacuum preloading reinforcement method and reinforcement system. Background technique [0002] At present, the vacuum preloading method has gradually developed into a mature foundation reinforcement method. For naturally formed soft ground, vacuum preloading has a very significant effect. However, for newly filled soil foundations, especially deep dredged filled soils, traditional vacuum preloading is often difficult to effectively discharge deep groundwater. Because in the later stage of vacuum preloading, since the water in the foundation has been discharged, the remaining water cannot form a continuous water flow in the pumping pipeline under the action of vacuum, so there is often a part of water in the drainage board and the pumping pipe th...

AI Technical Summary

Problems solved by technology

Due to the innovation in concept and the attempt in construction, without in-depth analysis and research on the reinforcement mechanism and specific operation methods of vacuum preloading combined with well point dewatering, it cannot fundamentally solve the process defects of vacuum preloading. Does not significantly enhance reinforcement

Therefore, so far, the reinforcement method of vacuum preloading combined with well point precipitation has not made breakthrough progress, and the reinforcement effect in actual engineering is not significantly enhanced compared with vacuum preloading.

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