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Treatment method for soft soil foundation in coastal reclamation region

A soft soil foundation and treatment method technology, applied in soil protection, infrastructure engineering, construction, etc., can solve problems such as difficult to accurately predict the settlement of the soil layer, and achieve the effects of promoting harmonious development, shortening the construction period, and reducing the cost

Active Publication Date: 2013-02-13
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

In view of the lack of relevant experience and calculation formulas for this type of foundation treatment, it is difficult to accurately predict the settlement of the soil layer. Therefore, it is necessary to propose a reasonable and economical soft foundation treatment plan based on the conditions of the reclamation area.

Method used

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  • Treatment method for soft soil foundation in coastal reclamation region
  • Treatment method for soft soil foundation in coastal reclamation region
  • Treatment method for soft soil foundation in coastal reclamation region

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Embodiment Construction

[0021] The features of the present invention and other relevant features are described in further detail below in conjunction with the accompanying drawings through the embodiments, so as to facilitate the understanding of those skilled in the art:

[0022] figure 1 and figure 2 Constitute the whole construction process flowchart of the present invention.

[0023] Such as Figure 1-4 , marks 1-8 in the figure are respectively: long plastic drainage board 1, heap material 2, sand cushion layer 3, short plastic drainage board 4, soft soil layer 5, dredger filling soil layer 6, non-deep treatment area 7, deep layer Treat area 8.

[0024] Example: such as image 3 , 4 As shown, this embodiment specifically relates to a method for treating soft soil foundations in land reclamation areas, wherein the soft soil foundations are composed of a soft soil layer 5 and a post-filling soil layer 6 covering the soft soil layer 5, and the land reclamation area Including the deep treatme...

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Abstract

The invention belongs to the technical field of soft soil foundation treatment in geotechnical engineering, and particularly relates to a treatment method for a soft soil foundation in a coastal reclamation region. The soft soil foundation consists of a soft soil layer and a post-pumping filling soil layer covering on the soft soil layer, wherein the region comprises a deep layer treatment region and a non-deep layer treatment region. The treatment method comprise the following specific steps that long plastic drain boards are arranged in a beating manner before a pumping filling soil layer is formed in the deep layer treatment region; the heights of the long plastic drain boards are greater than the elevation of the pumping filling soil layer; then the pumping filling soil is formed; short plastic drain boards are arranged in a beating manner in the non-deep layer treatment region; and finally vacuum preloading is conducted in a large area in a partitioning manner. The treatment method has the advantages that treatment is finished by one step; pumping filling soil can be used as a load for accelerating consolidation settlement of the soft soil layer in the deep part during the pumping filling period; the construction period is saved; the manufacturing cost is lowered; and waste due to the conventional multistep and repeated treatment is reduced.

Description

technical field [0001] The invention belongs to the technical field of soft soil foundation treatment in geotechnical engineering, and in particular relates to a method for treating soft soil foundation in reclamation areas. Background technique [0002] At present, human beings only have one earth, so land resources are extremely limited. With the rapid increase of world population and the expansion of activity space, urban land resources are becoming more and more scarce. Rural land resources must be guaranteed in consideration of grain, oil, vegetable land and forestry needs to feed a large number of people. Therefore, urban construction can not be too much Occupy agricultural and forestry land. The state emphasizes that 1.88 billion mu of land cultivation resources must be preserved, which is a police boundary that cannot be broken through when new land resources are approved. [0003] For this reason, developers can only renovate the old urban areas of towns and carry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10
Inventor 白彦峰徐健温学钧刘丽
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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