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Anti-liquefaction treatment method for liquefiable foundation

A technology for liquefying foundations and treatment methods, which is applied in soil protection, infrastructure engineering, construction, etc. to achieve the effects of increasing the density, improving the density, and increasing the stress of the overlying stratum.

Active Publication Date: 2020-12-04
CCCC FOURTH HARBOR ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an anti-liquefaction treatment method for liquefiable foundations, aiming to solve the shortcomings of the existing anti-liquefaction treatment methods for liquefiable foundations

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  • Anti-liquefaction treatment method for liquefiable foundation

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Embodiment Construction

[0054] The present invention will be further described below in conjunction with drawings and embodiments.

[0055] see Figure 1 to Figure 4 , figure 1 It is a flow chart of the steps of the anti-liquefaction treatment method of liquefiable foundation of the present invention, figure 2 It is a schematic plan layout diagram of an embodiment of gravel piles and drainage boards in the anti-liquefaction treatment method for liquefiable foundations of the present invention, image 3 It is a schematic plan layout diagram of another embodiment of gravel piles and drainage boards in the anti-liquefaction treatment method for liquefiable foundations of the present invention, Figure 4 It is a schematic cross-sectional view of an embodiment of a gravel pile and a drainage board in the anti-liquefaction treatment method for liquefiable foundations of the present invention. An anti-liquefaction treatment method for a liquefiable foundation, comprising the following steps:

[0056] S...

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Abstract

The invention provides an anti-liquefaction treatment method for a liquefiable foundation. The anti-liquefaction treatment method comprises the following steps that a broken stone hardcore is laid, and specifically the broken stone hardcore with the preset thickness is laid on the surface of the liquefiable foundation; drainage plate construction is conducted, wherein the construction positions ofgravel piles are determined, the gravel piles are arranged in a regular triangle or square shape, and drainage plates are inserted into the geometric centers of the gravel piles arranged in the regular triangle or square shape; gravel pile construction is carried out; the broken stone hardcore is continuously laid, and the broken stone hardcore is laid to the designed thickness according to the designed thickness of the broken stone hardcore; and a non-liquefied soil layer is laid. The anti-liquefaction treatment method aims to overcome the defects of an existing anti-liquefaction treatment method for the liquefiable foundation.

Description

technical field [0001] The invention belongs to the technical field of foundation treatment, in particular to a liquefaction-resistant treatment method for liquefiable foundations. Background technique [0002] For the liquefiable foundation treatment of deep sandy soil, the traditional method mainly adopts the compaction method and the drainage method. The compaction method mainly resists the cyclic shear stress under the earthquake force by increasing the compactness of the sandy soil. There are mainly dynamic compaction method and vibratory compaction method, but the treatment depth of dynamic compaction method is limited, generally the treatment effect is not good if it is larger than 10m, and the vibro compaction method is generally used for sandy soil larger than 10m, but the vibro compaction method is suitable for fine grain content greater than 20 % sandy soil treatment effect is not good; the drainage method mainly provides vertical drainage channels to dissipate th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10E02D3/08
CPCE02D3/08E02D3/10
Inventor 梁小丛陈平山周红星王婧徐雄朱明星
Owner CCCC FOURTH HARBOR ENG CO LTD
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