Supporting disc pile for soft stratum filled with sea and construction method thereof

A technology of weak ground and construction methods, applied in sheet pile walls, soil protection, foundation structure engineering, etc., can solve the problems of pile foundation bearing capacity not meeting the requirements, thick sediment, and difficulty in pile foundation hole formation, etc., to achieve small deformation , High bearing capacity, increase the effect of end bearing

Pending Publication Date: 2021-10-22
CHINA RAILWAY SOUTH INVESTMENT GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the reclamation stratum has a relatively thick soft soil layer, and it is difficult to form holes in the pile foundation and the sediment is thick, and the bearing capacity of the pile foundation after pile formation often cannot meet the requirements.

Method used

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  • Supporting disc pile for soft stratum filled with sea and construction method thereof
  • Supporting disc pile for soft stratum filled with sea and construction method thereof

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0040] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative...

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Abstract

The invention discloses a supporting disc pile for a soft stratum filled with sea and a construction method thereof. The construction method comprises the steps of site leveling, surveying and setting out, steel casing embedding, drilling machine in-place, drilling construction, final hole inspection, first-time hole cleaning and measuring, supporting disc extrusion and expansion forming, hole sweeping, second-time hole cleaning and measuring, reinforcement cage placing, guide pipe hoisting and placing, third-time hole cleaning, underwater concrete pouring and high-pressure grouting. According to the construction method, through the mode of three-time hole cleaning and dual detection of an ultrasonic hole forming detector and a caliper, high-quality slurry is selected in the construction process, the pile forming quality of the supporting disc pile is ensured, the construction problem of the supporting disc pile in the complex soft stratum filled with sea, especially in the area covered with deep soft soil is solved, the construction cost is low, and safety and reliability are achieved.

Description

technical field [0001] The invention relates to the technical field of support piles, in particular to a support pile used for reclamation of weak strata and a construction method thereof. Background technique [0002] The distribution of offshore reclamation strata is more complicated than that of general rock and soil layers, and its physical and mechanical properties are poor, and its physical and mechanical properties may become worse due to the influence of the sea environment. Therefore, the foundation reinforcement method of reclamation strata is particularly important important. [0003] Based on the compression and pullout mechanism of tree roots, extruded branch pile is a special-shaped pile designed and developed in combination with the shape of variable cross-section bored pile. The branch not only increases the lateral surface area of ​​the pile, but also can make full use of The end-bearing capacity of each soil layer greatly improves the bearing capacity of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E02D5/44
CPCE02D3/00E02D5/44
Inventor 肖友银汪波施劭矗马龙祥姬繁戴文沈道旭刘厚朴
Owner CHINA RAILWAY SOUTH INVESTMENT GRP CO LTD
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