Rapidly-formed expansion steel pipe pile and construction method thereof

A technology of steel pipe piles and outer steel pipes, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of cumbersome construction technology, long pile-forming period, vibration, noise, pollution, etc., and achieve simple construction equipment and environmental protection The effect of less pollution and less space occupation

Inactive Publication Date: 2020-06-09
SOUTHEAST UNIV
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cast-in-situ piles have no vibration and low noise during construction, and are suitable for use in urban areas with dense population and buildings. However, they are highly dependent on on-site wet work, the construction process is cumbersome, the pile-forming period is long, and the quality of poured concrete is unstable. and other

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
  • Rapidly-formed expansion steel pipe pile and construction method thereof
  • Rapidly-formed expansion steel pipe pile and construction method thereof
  • Rapidly-formed expansion steel pipe pile and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of rapid expansion steel pipe pile, such as figure 1 As shown, including outer steel pipe 1 and inner steel pipe 2; figure 2 As shown, a number of expansion anchor claws 3 are installed at different depths around the outer steel pipe 1. The length of the inner steel pipe 2 is longer than the length of the outer steel pipe 1, and the outer diameter is smaller than the inner diameter of the outer steel pipe 1. The bottom end is processed into a wedge-shaped end 4. The wedge-shaped end and The transition zone of the straight part is processed as an arc surface.

[0032] The installation method of expansion anchor fluke is as follows: image 3 As shown, the expansion anchor fluke 3 is in the shape of a flat triangular prism as a whole, and the bottom is processed as an arc surface; the outer steel pipe wall is processed with a square opening 5; the expansion anchor fluke 3 is placed in the opening 5, and its side is flush with the outer wall of the outer steel pipe...

Embodiment 2

[0036] A construction method for rapid expansion of steel pipe piles, including the following steps:

[0037] S1, level the site, set out the line to determine the pile position, excavate the hole 7, the depth of the hole 7 is less than the length of the outer steel pipe 1, and the diameter of the hole is larger than the diameter of the outer steel pipe 1;

[0038] S2, such as Figure 5 As shown, lower the outer steel pipe 1 to the hole 7;

[0039] S3, lift the inner steel pipe 2 to the top of the outer steel pipe 1, first insert the bottom end of the inner steel pipe 2 into the outer steel pipe 1, then Figure 5 detailed figure 1 As shown, steel rope 8 is used around the pile body to connect the inner steel pipe wall with the top of the outer steel pipe, and the winch 9 is used to wind the steel rope 8, thereby pulling the inner steel pipe 2 into the outer steel pipe 1; For the self-balancing of the inner steel pipe, use the winch 9 to insert the inner steel pipe 2 into th...

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 discloses a rapidly-formed expansion steel pipe pile and a construction method thereof. The rapidly-formed expansion steel pipe pile comprises an outer steel pipe with an expansion anchor claw, and an inner steel pipe with a wedge-shaped bottom end. The expansion anchor claw is firstly fixed in the outer steel pipe, and after the outer steel pipe is lowered to a hole well, the innersteel pipe is inserted into the outer steel pipe through a steel rope and a winch; in the insertion process, the wedge-shaped bottom end of the inner steel pipe extrudes the expansion anchor claw andpushes the expansion anchor claw out of the outer steel pipe; and the expansion anchor claw is wedged into soil around a pile body, so that the bearing capacity of a pile foundation is provided. The rapidly-formed expansion steel pipe pile has the advantages of short pile forming period, no vibration and low noise on the construction site, no environmental pollution, simple construction equipment,standardization design, batch production and assembly construction, is widely applicable to various civil engineering such as buildings and bridges, and has positive significance for meeting the current urban construction requirements and promoting industrial innovation and development.

Description

technical field [0001] The invention belongs to the technical field of pile foundations, and in particular relates to a steel pipe pile capable of rapid pile formation, and a steel pipe pile and a construction method thereof which utilize pile body expansion and anchor claws to be wedged into soil to obtain bearing capacity. Background technique [0002] Since the beginning of the 21st century, the process of urbanization and motorization in China has been accelerating, and the rapid growth of population, vehicles, and buildings has continued to compress urban space, causing more and more serious traffic congestion problems. At the same time, the environmental problems brought about by urbanization are becoming increasingly prominent. Under such circumstances, the traditional civil construction methods, which have a long construction period, occupy a large area, rely on the handicraft production mode, and easily cause traffic congestion and environmental pollution, are incre...

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
IPC IPC(8): E02D5/28E02D27/12
CPCE02D5/285E02D27/12
Inventor 程钊王景全李帅
Owner SOUTHEAST UNIV
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