A movable steel casing and a construction method for cast-in-situ piles using the steel casing

A construction method and technology of steel casing, applied in sheet pile wall, foundation structure engineering, construction, etc., can solve the problems of reducing the quality of pile foundation and easy collapse of concrete.

Active Publication Date: 2016-02-24
ZHEJIANG JINZHU TRANSPORTATION CONSTR
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a movable steel casing and a construction method for cast-in-situ piles using the steel casing. It is necessary to solve the problem that the existing integral steel casing must be set aside before the initial setting of the pile foundation concrete in the construction of the existing integral steel casing, resulting in steel The technical problem that the concrete around the casing is easy to collapse and thus reduce the quality of the pile foundation

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
  • A movable steel casing and a construction method for cast-in-situ piles using the steel casing
  • A movable steel casing and a construction method for cast-in-situ piles using the steel casing
  • A movable steel casing and a construction method for cast-in-situ piles using the steel casing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Examples see Figure 1 to Figure 5 As shown, a movable steel casing is composed of a front semicircular cylinder wall 1 and a rear semicircular cylinder wall 3. The diameters and heights of the front semicircular cylinder wall 1 and the rear semicircular cylinder wall 3 are are the same;

[0039] The opening of the front semicircular cylinder wall 1 is welded with two sets of unequal angle steels 2, and the backs of the long limbs of the unequal angle steels 2 are closely attached to the outside of the opening of the front semicircular cylinder wall 1. , the lower sleeve 7 is welded at intervals between the tips of the short limbs;

[0040] The opening of the rear semicircular cylinder wall 3 is welded with two sets of equilateral angle steel 4, and the back of one limb of the equilateral angle steel 4 is close to the outside of the opening of the rear semicircular cylinder wall 3. , the back of the other limb is welded with an upper sleeve 9 at intervals close to the...

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

Disclosed are a moving steel casing and a cast-in-place pile construction method using the same. The moving steel casing is formed by butt-splicing a front semicircular tubular wall and a rear semicircular tubular wall. The front semicircular tubular wall and the rear semicircular wall are aligned. A lower casing and an upper casing are in top-bottom alignment and are fixedly connected through pins inserted into the upper and lower casings from top to bottom. A lift ring is welded at the top of each pin. The front and rear tubular walls are pulled out respectively one by one after the cast-in-place pile is cast, so that the problem that the conventional integrated steel casing guarantees no pile base quality is avoided. Through the split structure, the steel casing is easy to pull out whenever concrete finally sets and pulling out the steel casing in the later stage is not difficult in construction anymore.

Description

technical field [0001] The invention relates to a steel casing and a construction method for a cast-in-situ pile using the steel casing, in particular to a movable steel casing that can be split into two halves and a construction method for using the steel casing to carry out a pouring pile. Background technique [0002] The steel casing is a casing set up during the construction of cast-in-situ piles to protect the pile holes, prevent the holes from collapsing, and avoid affecting the construction progress and safety. The steel casing has the functions of stabilizing the hole wall, preventing hole collapse, isolating surface water, guiding the drill bit, fixing the pile position, and protecting the original ground during operation. [0003] The structure of the commonly used steel casing is usually a whole composed of steel plates, and the joints are welded and connected. The steel casing of this structure is in the construction process of the cast-in-place pile, and the st...

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 Patents(China)
IPC IPC(8): E02D5/66E02D5/38
Inventor 叶水标申屠德进郑竟友曾先才刘国超何永平李少波栗海军田南明
Owner ZHEJIANG JINZHU TRANSPORTATION CONSTR
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