A method for pulling out prestressed pipe piles of a bridge abutment and its supporting equipment

A technology of prestressed pipe piles and supporting equipment, which is applied in the direction of sheet pile walls, buildings, and foundation structure engineering, etc. It can solve the problems of long construction period, large hole expansion rate of bored piles, and noise impact, and achieve the construction hole expansion rate Small size, improved pile pulling efficiency, and low noise impact

Active Publication Date: 2019-11-22
THE 3RD ENG CO LTD OF CHINA RAILWAY 16TH BUREAU GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet the specifications and design requirements, improve the traditional construction methods such as impact and water flushing; avoid the problems of long construction period, large hole expansion rate of bored piles, and noise impact, etc., a prestressed pipe pile pull-out method for the abutment was designed for construction research. Method and supporting equipment

Method used

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  • A method for pulling out prestressed pipe piles of a bridge abutment and its supporting equipment
  • A method for pulling out prestressed pipe piles of a bridge abutment and its supporting equipment
  • A method for pulling out prestressed pipe piles of a bridge abutment and its supporting equipment

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Experimental program
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Effect test

Embodiment 1

[0035] The length of the prestressed pipe pile 7 to be pulled is 22 meters. The supporting equipment for the method of pulling out the prestressed pipe pile of the abutment includes 4 cranes, 6 vibrating hammers, 5 excavators, 1 sinking steel pipe, and chuck plates 2 and tensile steel bar 3, the diameter of tensile steel bar 3 is ∅25, and the length is 22 meters.

[0036] according to image 3 , Figure 4 As shown, the sinking steel pipe 1 includes a hollow cylindrical pipe body 11 and an overhanging vibration plate 12 at the head of the pipe body 11, and the overhanging vibration plate 12 and the head of the pipe body 11 are welded into a unified whole . Reinforcing ribs 13 are welded on both sides of the overhanging vibration plate 12, the overhanging vibration plate 12 is made of 20mm thick steel plate, and the sinking steel pipe 1 is 25 meters in length.

[0037] The chuck plate 2 includes a splint 21 and a hanging plate 22, the upper end of the hanging plate 22 is prov...

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Abstract

The invention relates to the field of various pipe piles, in particular to a bridge abutment prestressed pipe pile pulling-out method and a matched device thereof. The matched device comprises an excavator, a crane, a vibration hammer and auxiliary tools, wherein the auxiliary tools comprise a sinking steel pipe, a clamp plate and a tensile reinforcement. The method comprises the steps of sinking of the sinking steel pipe, pulling out of a pile body, pulling out of the sinking steel pipe and the like. All matched facilities of water jet and impact construction methods are avoided, noise is low, and the construction speed is high.

Description

technical field [0001] The invention relates to the field of various pipe piles, in particular to a method for pulling out a bridge abutment prestressed pipe pile and its supporting equipment. Background technique [0002] With the rapid development of my country's transportation industry, bridge engineering is an important part of the transportation system. The construction and operation status of bridges play a very important role in economic development. During the construction of bridge projects, it is inevitable to encounter problems such as crossing lines and overlapping old lines, and the problems of municipal engineering are becoming more and more prominent. In order to meet the specifications and design requirements, improve the traditional construction methods such as impact and water flushing; avoid the problems of long construction period, large hole expansion rate of bored piles, and noise impact, etc., a prestressed pipe pile pull-out method for the abutment wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D9/02
CPCE02D9/02
Inventor 田伟权胡松王东兴王勤荣曹军吴强
Owner THE 3RD ENG CO LTD OF CHINA RAILWAY 16TH BUREAU GRP CO LTD
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