Immediate processing method for drainage solidifying of super soft soil shallow surface space

A drainage consolidation and treatment method technology, which is applied in the engineering field of ultra-weak foundation reinforcement, can solve problems such as inapplicability, achieve effective drainage consolidation, improve transfer and drainage efficiency, and avoid air leakage
CN102220757BActive Publication Date: 2013-01-09CCCC FOURTH HARBOR ENG INST +4
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CCCC FOURTH HARBOR ENG INST
Publication Date
2013-01-09

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Abstract

The invention discloses an immediate processing method for drainage solidifying of a super soft soil shallow surface. The method comprises the following steps: (1) arranging a plurality of layers of horizontal drainage channel nets on the area to be reinforced of a super soft foundation, wherein each horizontal drainage channel net comprises a plurality of longitudinal, lateral or criss-cross horizontal drainage channels and a plurality of horizontal converging tubes, and the longitudinal, lateral or criss-cross horizontal drainage channels at the same layer are converged at the correspondinghorizontal converging tubes; (2) converging the horizontal converging tubes at different layers to a plurality of vertical corrugated pipe, and connecting the corrugated pipes with vacuumizing equipment to form a stereo net-shaped drainage system; and (3) laying a geotextile layer and 1-2 layers of sealing films on the surface of a reinforced area, utilizing the vacuumizing equipment to vacuumize, spraying water on the surfaces of the sealing films, and unloading about 30-60 days later. The immediate processing method provided by the invention can be used as a shallow surface pretreatment measure, and also can be used for carrying out one-time process on a foundation with lower requirement on processing depth until the processed foundation can meet the operating requirement. By utilizing the technology provided by the invention to reinforce the foundation, the construction period can be greatly shortened, and the construction cost is lowered.
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Description

technical field

[0001] The invention relates to the fields of port engineering, highway engineering, construction engineering and the like, in particular to an engineering technology for super-soft foundation reinforcement such as silt or newly dredged floating mud, silt and the like. Background technique

[0002] With the continuous and rapid development of my country's economy, the scale of infrastructure construction in my country's coastal areas in recent years has been unprecedented. A large number of land reclamation projects have been carried out. In order to reduce the cost, most land reclamation projects are combined with the dredging and dredging of waterways or sea outlets, and ultra-soft soil such as floating mud and silt is used as backfill materials. The surface layer of the foundation formed is ultra-soft soil with extremely high water content. Taking Tianjin Lingang Industrial Zone as an example, its average moisture content is more than 200%, its strength an...

Claims

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