Cast-in-place X-shaped tapered pile with threaded end and construction method of tapered pile

A construction method, the technology of conical piles, applied in the direction of sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of reducing bearing capacity, large settlement, etc., and achieve the effect of eliminating impact, reducing impact, and improving utilization rate

Inactive Publication Date: 2012-12-26
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This frictional resistance constitutes a part of the load of the pressure-bearing pile, which reduces the bearing capacity of the pile and may also cause a large settlement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cast-in-place X-shaped tapered pile with threaded end and construction method of tapered pile
  • Cast-in-place X-shaped tapered pile with threaded end and construction method of tapered pile
  • Cast-in-place X-shaped tapered pile with threaded end and construction method of tapered pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 with figure 2 As shown, it is a cast-in-place X-shaped end threaded conical pile provided in Embodiment 1 of the present invention, which includes a plastic sleeve 7 and a pile body 12 filled in the cavity of the plastic sleeve 7 . The cross section of the pile body 12 is X-shaped. The cross-sectional area of ​​the pile body 12 decreases gradually from top to bottom, and the pile body is vertically inverted tapered. The lower end of the pipe wall of the plastic sleeve 7 is a threaded pipe wall 13, and the rest of the pipe wall of the plastic sleeve 7 is a smooth pipe wall 14, so the pile body 12 also has a corresponding thread structure. The boundary position of the threaded pipe wall 13 and the smooth pipe wall 14 is mainly determined according to the boundary position of the negative friction resistance and the positive friction resistance of the pile body.

[0034] Such as Figure 3 to Figure 7 As shown, the embodiment of the present invention a...

Embodiment 2

[0044] Such as Figure 8 As shown, this embodiment is roughly the same as the cast-in-place X-shaped end threaded conical pile in Embodiment 1, the difference is that the lower end of the pipe wall of the plastic casing in this embodiment is a threaded pipe wall 15, The upper end is also a threaded pipe wall 16, and the middle is a smooth pipe wall 17. Preferably, the threaded pipe wall 15, the threaded pipe wall 16 and the smooth pipe wall 17 each account for one-third of the height.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a cast-in-place X-shaped tapered pile with a threaded end, which comprises a plastic casing and a pile body filled in a cavity of the plastic casing. The cross section of the pile body is X-shaped. The sectional area of the pile body is decreased gradually from the top down, and the pile body is in an inverted cone shape longitudinally. A threaded casing wall is arranged at the lower end of a casing wall of the plastic casing. The invention further provides a construction method of the cast-in-place X-shaped tapered pile with the threaded end. With the adoption of the cast-in-place X-shaped tapered pile with the threaded end, the usage of concrete is saved obviously, the unit material strength utilization ratio is increased, positive frictional resistance on the side of the pile is increased significantly, and the effect of negative frictional resistance on a pile foundation is eliminated to a greater extent. Furthermore, the construction process is simple, the operability is high, the construction indentation efficiency is high, and the bearing capacity of a single pile is high.

Description

technical field [0001] The invention belongs to the technical field of building pile foundations, and in particular relates to a cast-in-place X-shaped end threaded tapered pile and a construction method thereof. Background technique [0002] The pile foundation bears the load of the superstructure mainly through the frictional resistance of the pile side and the resistance of the pile end. When the settlement of the soil around the pile is greater than the settlement of the pile body due to self-consolidation, water subsidence, site filling, ground surcharge, pile top load, and groundwater level drop, negative frictional resistance will occur on the pile side. This frictional resistance constitutes a part of the load of the pressure-bearing pile, which reduces the bearing capacity of the pile and may cause greater settlement. [0003] The generation of negative friction resistance has the following adverse effects: reducing the bearing capacity of the pile foundation, incr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/38E02D5/72
Inventor 代先尧李长冬雍睿王凯
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap