Erosion prevention suction bucket foundation and layered soil layer grouting reinforcement method thereof

A technology of grouting reinforcement and suction bucket, which is applied in basic structural engineering, construction, etc., can solve problems such as inability to precisely grouting, and the direction of cement slurry diffusion is uncertain, so as to improve the integrity and shear strength, and increase the friction force of bucket soil. Large, improve the effect of shear strength

Active Publication Date: 2018-04-06
HOHAI UNIV
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Problems solved by technology

For example, the Chinese invention patent with the notification number CN 106240749 A discloses a "grouting suction anchor and its installation method". It pours cement slurry into the gap between the middle cylinder and the soil body. The diffusion direction of the cement slurry is uncertain and cannot be accurately injected. pulp

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  • Erosion prevention suction bucket foundation and layered soil layer grouting reinforcement method thereof
  • Erosion prevention suction bucket foundation and layered soil layer grouting reinforcement method thereof
  • Erosion prevention suction bucket foundation and layered soil layer grouting reinforcement method thereof

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Embodiment Construction

[0027] The present invention will be further clarified below in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0028] figure 1 Is a schematic diagram of the three-dimensional structure of the present invention; figure 2 Is a front view of the present invention; image 3 It is a schematic diagram of the A-A section of the present invention; Figure 4 It is a perspective schematic diagram of the stiffener pipe of the present invention; the names of the reference numerals are in order: self-weight pneumatic valve 1, bucket lid 2, connecting rod 3, vacuum pump pneumatic valve 4, grouting pipe 5, grouting hole 6, stiffening rib pipe 7, Barrel wall 8, moving piston 9, high pressure nozzle 10.

[0029] It can be seen from the accompanying drawings that the foundation of the anti-scouring suction bucket includes ...

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Abstract

The invention discloses an erosion prevention suction bucket foundation and a layered soil layer grouting reinforcement method thereof. The suction bucket foundation comprises a connecting rod and a barrel body, wherein the periphery of the barrel body is uniformly provided with a plurality of stiffened rib pipes each of which is provided with a plurality of grouting holes; a grouting pipe penetrates through each stiffened rib pipe; and a high-pressure sprayer is arranged on the bottom end of each grouting pipe. The method comprises the following operation steps: step (1): placing the suctionbucket foundation; step (2): grouting; step (3): performing high classification; and step (4): lifting a moving piston step by step. The erosion prevention suction bucket foundation and the layered soil layer grouting reinforcement method thereof can not only realize active erosion protection, but also strengthen the soil in the buried depth range of the whole bucket in a layered manner accurately, and increase the friction force of the bucket soil after grouting, and greatly improve the anti-pull, anti-compression and anti-overturning bearing capacity of the suction bucket foundation.

Description

Technical field [0001] The invention relates to a marine foundation scour protection device, in particular to a scour-proof suction bucket foundation and a layered grouting reinforcement method for soil, belonging to the technical field of marine engineering. Background technique [0002] The suction bucket foundation is a kind of marine foundation. In the marine environment, it is subject to the erosion of seawater, the soil around the foundation is lost, and the effective buried depth of the foundation is reduced, resulting in a serious reduction in the bearing capacity of the foundation. The existing marine foundation scour protection is mainly riprap protection and overlying protection. Rock dumping protection means placing stones in a certain area around the foundation to reduce local erosion around the foundation; or using steel plates or geotextiles to cover the soil around the foundation to achieve the purpose of protecting the soil layer. These anti-scouring methods hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/52
CPCE02D27/525
Inventor 刘金忠朱珍德王保田张明生阙相成张聪龚超何燕新
Owner HOHAI UNIV
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