Novel low-position water draining body suitable for ultra-low-position vacuum pre-pressing method

A vacuum preloading method and drainage body technology, which is applied in soil protection, construction, and infrastructure engineering, etc., can solve problems such as unsatisfactory reinforcement effects, easy inward deformation, and poor drainage, so as to improve drainage efficiency and avoid The effect of weakening the underlying layer and increasing stability

CN107700471APending Publication Date: 2018-02-16NORTH CHINA MUNICIPAL ENG DESIGN & RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-02-16

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Abstract

The invention provides a novel low-position water draining body suitable for an ultra-low-position vacuum pre-pressing method. A spatial lattice type keel frame is adopted for the water draining body,and a water draining passage and a vacuum transmitting passage are formed in the inner spatial part of the spatial lattice type keel frame. Water inflow holes and vacuum transmitting holes are formedin a keel frame body, and a vacuum conduction pipe hole is reserved in the centroid of the cross section of the keel frame. A vacuum conduction pipe is embedded into the vacuum conduction pipe hole and connected with the spatial lattice type keel frame through a lower end head. The water draining body adopts the ultra-low-position vacuum pre-pressing method, the water draining efficiency can be effectively improved through the low-position water draining mode, the phenomena of bending, folding, blocking and the like of an original water draining body are reduced or eliminated, and the problem, existing in the construction process, of an original vacuum pre-pressing system is fundamentally solved.
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Description

technical field

[0001] The invention belongs to a device for foundation reinforcement, and particularly relates to a new low-level drainage body suitable for ultra-low-level vacuum preloading method. The drainage body is especially suitable for reinforcement treatment of large-area and high-water-content deep dredging-filled soft clay foundations in coastal areas. . Background technique

[0002] With the development of society, people's pursuit of the quality of living environment is increasing day by day, especially the pursuit of a wide living space. The existing land can no longer meet the large-scale development of cities. Land reclamation is an effective way to solve land resources. Building a city full of high-rise buildings on the filled soil requires a solid foundation, but the strength of the filled soil is extremely weak. Therefore, improving the strength of the filled soil is a necessary condition for urban construction.

[0003] The vacuum preloading method is a...

Examples

Embodiment Construction

[0030] Such as Figure 1-4 Shown: a new type of low-level drainage body suitable for ultra-low vacuum preloading method. The drainage body adopts a space lattice dragon skeleton, and the internal space part forms a drainage channel and a vacuum transmission channel. The dragon skeleton body is equipped with a water inlet Holes and vacuum transmission holes, a vacuum conduction tube hole is reserved at the centroid of the cross-section of the dragon skeleton, the vacuum conduction tube is embedded in the vacuum conduction tube hole and connected with the space lattice dragon skeleton through the lower end to realize the vacuum load from the vacuum conduction tube The transmission diffuses to the vacuum transmission channels in the space lattice dragon skeleton of the drainage body, and further diffuses into the reinforced soil through the vacuum transmission holes. The above-mentioned space lattice type dragon skeleton is wrapped with a water-filtering non-woven fabric. The ou...