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Concrete drainage pile with annular reinforced permeable sleeve and pile forming method

A technology for concrete and drainage piles, which is applied to sheet pile walls, buildings, infrastructure projects, etc., can solve the problem of not taking into account the blockage of permeable concrete piles by soil particles, setting protective measures for permeable concrete piles, and reducing drainage performance, etc. problem, to achieve good drainage effect, excellent water absorption, reduce the possible effect of liquefaction

Pending Publication Date: 2021-02-05
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method does not take into account the situation that the permeable concrete piles are blocked by soil particles, and no protective measures are set for the permeable concrete piles.
As the use time increases, the holes of the permeable concrete pile will be blocked, and the drainage performance will be reduced

Method used

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  • Concrete drainage pile with annular reinforced permeable sleeve and pile forming method
  • Concrete drainage pile with annular reinforced permeable sleeve and pile forming method
  • Concrete drainage pile with annular reinforced permeable sleeve and pile forming method

Examples

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Embodiment Construction

[0036] The present invention will be described in detail below in combination with specific embodiments.

[0037] The invention relates to a concrete drainage pile with a circumferentially reinforced permeable casing. The drainage pile includes a soft permeable pipe 2. The inside of the soft permeable pipe 2 is a cast-in-place permeable concrete pile 1; the outside of the soft permeable pipe 2 A helical spring steel ring 5 is provided as a support.

[0038] The soft permeable pipe 2 includes a three-layer structure, the inner wall is a smooth plastic sleeve with holes, the middle is a non-woven geotextile, the outer wall is a corrugated plastic sleeve with holes, and the spring steel ring 5 is located in the trough of the outer wall. The bottom of the soft permeable pipe 2 is also provided with a prefabricated pile point 3; the prefabricated pile point 3 is conical, and the top is a concrete casing interface 8. The center of the concrete casing interface 8 on the top of the p...

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Abstract

The invention relates to a concrete drainage pile with an annular reinforced permeable sleeve and a pile forming method. The concrete drainage pile comprises a soft permeable pipe. A cast-in-place permeable concrete pile is arranged in the soft permeable pipe. A spiral spring steel ring is arranged outside the soft permeable pipe as a support. The concrete drainage pile with the annular reinforcedpermeable sleeve is used for liquefaction resistance and foundation consolidation drainage acceleration, the permeable concrete is used as a vertical drainage body, the soft permeable pipe is arranged outside to prevent the permeable concrete from being blocked, the process is simplified, and meanwhile, the spring steel ring on the soft permeable pipe can enhance the strength of the pile to a certain extent.

Description

technical field [0001] The invention relates to a pile type for treating liquefied foundations, in particular to a concrete drainage pile with a circumferentially reinforced permeable casing and a pile forming method. Background technique [0002] my country has a vast territory, and earthquakes occur frequently in this vast area. Under the action of earthquakes, liquefied sandy soil will generate excess pore water pressure. If the excess pore water pressure cannot be dissipated in time, it will lead to liquefaction damage to the foundation. Cause serious personal and property losses. Drainage piles are an important direction of anti-liquefaction research. [0003] The utility model "low-strength rigid pile-permeable concrete pile new binary composite foundation" (CN 202787211 U) discloses a low-strength rigid pile-permeable concrete pile new binary composite foundation, which utilizes the water permeability of the permeable concrete pile , so that the excess pore water pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/38E02D5/60E02D5/48E02D5/72E02D19/20
CPCE02D5/38E02D5/60E02D5/48E02D5/72E02D19/12E02D2250/0023E02D2300/002E02D2300/0029
Inventor 冯义刘新军李世辉张海高志宏王洪波朱小蓉王天明王俊张碧文胡双平相旭邓保顺张玉佩
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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