Soft foundation reinforcing construction method with good reinforcing effect

A technology of weak foundation and construction method, applied in basic structure engineering, soil protection, sheet pile wall, etc., can solve problems such as affecting construction quality, complexity, and unsatisfactory reinforcement effect, achieve strong bearing capacity, reduce settlement, prevent The effect of vibrational liquefaction

Inactive Publication Date: 2021-01-15
福建新华夏建工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that the weak geological conditions in the same construction area are sometimes encountered in actual construction. The current reinforcement method for some specific weak geological conditions is not ideal, which affects the construction quality.

Method used

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  • Soft foundation reinforcing construction method with good reinforcing effect
  • Soft foundation reinforcing construction method with good reinforcing effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] refer to figure 1 and figure 2 , a weak foundation reinforcement construction method with good reinforcement effect, comprising the following steps:

[0044] S1. Desilting: remove 40cm of floating silt from the upper layer of the area to be reinforced;

[0045] S2, laying first-level reinforcement piles 1: bury several first-level reinforcement piles 1 in the area where the floating silt has been cleared in step S1, adopt an equilateral triangle arrangement between the first-level reinforcement piles 1, and place between adjacent first-level reinforcement piles 1 The pile distance is 1m, and the diameter of the first-level reinforcement pile 1 is 0.4m;

[0046] S3. Embedding the secondary reinforcement pile 2: the secondary reinforcement pile 2 is buried in the periphery of the area where the primary reinforcement sand pile is buried, the secondary reinforcement pile 2 is a cement mixing pile, and the secondary reinforcement pile 2 is located on the periphery of the ...

Embodiment 2

[0053] refer to figure 1 and figure 2 , a weak foundation reinforcement construction method with good reinforcement effect, comprising the following steps:

[0054] S1. Desilting: remove 50cm of floating silt from the upper layer of the area to be reinforced;

[0055] S2, laying first-level reinforcement piles 1: bury several first-level reinforcement piles 1 in the area where the floating silt has been cleared in step S1, adopt an equilateral triangle arrangement between the first-level reinforcement piles 1, and place between adjacent first-level reinforcement piles 1 The pile distance is 1.2m, and the diameter of the first-level reinforcement pile 1 is 0.5m;

[0056] S3. Embedding the secondary reinforcement pile 2: the secondary reinforcement pile 2 is buried in the periphery of the area where the primary reinforcement sand pile is buried, the secondary reinforcement pile 2 is a cement mixing pile, and the secondary reinforcement pile 2 is located on the periphery of th...

Embodiment 3

[0060] refer to figure 1 and figure 2 , a weak foundation reinforcement construction method with good reinforcement effect, comprising the following steps:

[0061] S1. Desilting: remove 60cm of floating silt from the upper layer of the area to be reinforced;

[0062] S2, laying first-level reinforcement piles 1: bury several first-level reinforcement piles 1 in the area where the floating silt has been cleared in step S1, adopt an equilateral triangle arrangement between the first-level reinforcement piles 1, and place between adjacent first-level reinforcement piles 1 The pile distance is 1.5m, and the diameter of the first-level reinforced pile 1 is 0.6m;

[0063] S3. Embedding the secondary reinforcement pile 2: the secondary reinforcement pile 2 is buried in the periphery of the area where the primary reinforcement sand pile is buried, the secondary reinforcement pile 2 is a cement mixing pile, and the secondary reinforcement pile 2 is located on the periphery of the p...

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Abstract

The invention relates to a soft foundation reinforcing construction method with a good reinforcing effect. The soft foundation reinforcing construction method comprises the following steps of S1, siltremoval, wherein floating silt on the upper layer of an area to be subjected to reinforcing construction is removed; S2, first-stage reinforcing pile burying, wherein multiple first-stage reinforcingpiles are buried in the area where the floating silt is removed in the step S1; S3, second-stage reinforcing pile burying, wherein second-stage reinforcing piles are buried in the periphery of the area where the first-stage reinforcing sand piles are buried; S4, gravel layer laying, wherein a graded gravel layer is laid at the tops of the first-stage reinforcing piles; and S5, overload pre-pressing, wherein an overload pre-pressing layer is arranged on the graded gravel layer, and overload pre-pressing reinforcing is conducted on the to-be-reinforced area through the overload pre-pressing layer. The method has the advantage that the soft foundation reinforcing effect is remarkably improved.

Description

technical field [0001] The application relates to the field of foundation treatment engineering technology, in particular to a weak foundation reinforcement construction method with good reinforcement effect. Background technique [0002] Weak ground is a foundation formed by silt, silty soil, miscellaneous fill, flush fill, or other highly compressive coatings. Weak foundation is a kind of bad foundation, which has very poor stability, low strength, high compressibility, easy liquefaction, and large settlement. Therefore, in the construction process of the project, the deformation and stability of the foundation should be fully considered. Projects built on weak foundations often cannot meet the requirements of upper load and deformation due to insufficient foundation strength and large deformation. [0003] At present, it is usually necessary to strengthen the foundation during construction on weak foundations. According to different geological conditions, there are gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10E02D3/02E02D5/48E02D5/38E02D27/16
CPCE02D3/10E02D3/02E02D5/48E02D5/38E02D27/16E02D2300/002
Inventor 沈洪鹰罗志斌吴鸿锐
Owner 福建新华夏建工集团有限公司
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