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Large-diameter thin-wall cylindrical pile mesh combined structure with pile cap and construction method thereof

A technology of thin-walled cylindrical piles and composite structures, which is applied in foundation structure engineering, sheet pile walls, roads, etc., can solve problems such as single structure form, and achieve the effect of reducing settlement.

Inactive Publication Date: 2011-02-09
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the commonly used large-diameter thin-walled cylindrical pile network composite structure usually excavates the upper part of the pile after the pile is formed and casts the concrete cover. Advantages of flexible composition of various forms

Method used

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  • Large-diameter thin-wall cylindrical pile mesh combined structure with pile cap and construction method thereof
  • Large-diameter thin-wall cylindrical pile mesh combined structure with pile cap and construction method thereof
  • Large-diameter thin-wall cylindrical pile mesh combined structure with pile cap and construction method thereof

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Embodiment Construction

[0039] In the present invention, due to the presence of a soil core in the large-diameter thin-walled cylindrical pile body, in the case of adding a pile cap, when it is loaded and produces settlement, the pile end will penetrate into the underlying layer. The compression of the lower soil makes the soil around the pile end further squeezed into the barrel, so that the inner wall of the pile generates greater pile side friction resistance, effectively inhibiting the occurrence of settlement. Therefore, when the settlement cannot meet the requirements, it is recommended to add a pile cap on the top of the pile to make full use of the joint action of the pile and soil to enhance the ability of the pile-net composite foundation to control the settlement and deformation of the subgrade. At the same time, it is recommended to use large-scale single piles in the design Caps or multi-pile pile caps, using the characteristics of large-diameter thin-walled cylindrical pile caps to give ...

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Abstract

The invention discloses a large-diameter thin-wall cylindrical pile mesh combined structure with pile caps and a construction method thereof. The structure comprises large-diameter thin-wall cylindrical piles, a geogrid, an earthfill road embankment and pile caps, wherein the plurality of large-diameter thin-wall cylindrical piles are inserted into a soil body; a pile cap is built on the upper end of each large-diameter thin-wall cylindrical pile or a pile cap is built on the upper ends of the plurality of large-diameter thin-wall cylindrical piles; the geogrid is built on the upper ends of the pile caps; the earthfill road embankment is built on the geogrid; and the diameter of the large-diameter thin-wall cylindrical piles is 1 to 2 meters. The invention has the advantages that: the advantage of flexibly forming various forms of the cylindrical piles is taken fully, the function of a soil core is fully played according to the characteristics of the pile caps of the large-diameter thin-wall cylindrical piles, and settlement is further relieved.

Description

technical field [0001] The invention relates to a large-diameter thin-wall cylindrical pile net composite structure with a pile cap and a construction method thereof. Background technique [0002] The large-diameter thin-walled cylindrical pile was invented by Xie Qingdao, the Second Institute of Oceanography of the State Oceanic Administration, on the basis of long-term scientific research and engineering practice in marine engineering. It has obtained the Chinese national invention patent (ZL98113070.4). Concrete or reinforced concrete is formed at one time. This technology has been successfully applied in many highways, industrial and civil construction, and ocean engineering. At present, the commonly used large-diameter thin-walled cylindrical pile network composite structure usually excavates the upper part of the pile after the pile is formed and casts the concrete cover. The advantages of flexible composition of various forms. Contents of the invention [0003] T...

Claims

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Application Information

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IPC IPC(8): E02D7/18E02D5/30E01C3/00E02D27/14
Inventor 周建李一雯
Owner ZHEJIANG UNIV
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