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Method and special pressure-resistant rod for removing steel bar in multi-rod anchor cable

A technology of steel bars and anchor cables, which is used in construction, infrastructure engineering, sheet pile walls, etc., can solve the problem of not being able to remove steel bars and achieve the effect of rapid removal.

Active Publication Date: 2021-04-02
SUZHOU NG FOUND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for general steel bars without special hollow passages, especially for anchor cables formed by multi-strand steel bars and their sheaths to form multi-bar bodies, this method cannot realize the removal of steel bars.

Method used

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  • Method and special pressure-resistant rod for removing steel bar in multi-rod anchor cable
  • Method and special pressure-resistant rod for removing steel bar in multi-rod anchor cable
  • Method and special pressure-resistant rod for removing steel bar in multi-rod anchor cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In the method for removing the reinforcement body in the multi-rod body anchor cable in this embodiment, the reinforcement body has a sheath and constitutes the anchor body, and more than two anchor bodies are close to each other to form a multi-rod body anchor cable. If there is a length mark on the surface of the sheath, the length mark is usually engraved or printed on the surface of the sheath when the manufacturer makes the bolt body.

[0035] Such as figure 1 As shown, this embodiment exemplifies that there are five anchor bodies (respectively 1-1, 1-2, 1-3, 1-4 and 1-5) close to each other to form a multi-rod body anchor cable 2, wherein Anchor bodies 1-1 and 1-2 are threaded on the same integral pressure bearing plate 3-1 to fix each other, and anchor bodies 1-3 and 1-4 are threaded on the same integral pressure bearing plate 3-2 to fix each other Fixed, the anchor rod body 1-5 is pierced on the integral pressure bearing plate 3-3. Such as figure 2 As shown...

Embodiment 2

[0048] Such as Figure 10 As shown, the present embodiment is aimed at passing through a pair of anchor rod bodies 10 and 11 on the pressure bearing plate 9, wherein the anchor rod body 10 has been removed from the reinforcement body and the remaining empty sheath, and the anchor rod body 11 has not yet removed the reinforcement body, Same as the first embodiment above, the hole area 8 is first formed around the anchoring section of the anchor body 10, and then the construction is carried out in the same way as the first embodiment above, and the specific steps will not be repeated.

[0049] The specific practical application scenarios of the method for removing the bolt body in the above embodiment are as follows: Figure 11 , Figure 12 and Figure 13 As shown, there are three scenarios.

[0050] The scene is the same Figure 11 Shown: It belongs to the first treatment. After the anchor body is stretched and locked, it is found that the anchor body cannot be recovered. A...

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Abstract

The invention relates to a method for disassembling reinforcing steel bars in a multi-rod anchor rope, and a special hollow pressure-withstanding rod, and belongs to the technical field of the disassembling of foundation anchoring parts. The method comprises the steps of aiming at an anchor rod body formed by a reinforcing steel bar with a length-marked protecting jacket, and the multi-rod anchorrope formed by more than two anchor rod bodies staying close to each other, when at least one reinforcing steel bar in the multi-rod anchor rope is disassembled and an empty protecting jacket is remained, firstly determining a distance from an underground anchorage section of the anchor rope to the ground; selecting a customized water cutter mechanism, and determining the hollow pressure-withstanding rod and a nozzle at the front end of the hollow pressure-withstanding rod according to the inner diameters and the distances of the remained empty jacking sleeves; and propelling the hollow pressure-withstanding rod from the remained empty jacking sleeves to the anchorage section, starting the water cutter mechanism, adjusting and injecting high-pressure liquid through rotating the pressure-withstanding rod, cutting and abrading the non-disassembled reinforcing steel bars of the anchor rod bodies until disassembling the reinforcing steel bars, accumulating injected liquid into a hidden cave pre-scoured near the anchorage section, and permeating into a peripheral stratum.

Description

technical field [0001] The invention relates to a method for removing a reinforcement body in a multi-rod anchor cable, and belongs to the technical field of removal of foundation anchors. Background technique [0002] Anchor cable (or anchor rod) is an anchoring component commonly used in infrastructure construction, especially in cities. Such as large buildings, subway sections, subway stations or underground garages, etc. However, these widely used anchor rods also often face the problem of needing to be removed after the construction is completed or during the construction of new construction. In the face of cutting existing underground bolts, the reinforcement body in the bolt body that can remove the anchor cable by itself is widely used at present, such as hot-melt anchor cables and the like. However, there are still a large number of non-self-removable anchor cables left over from previous constructions, and there is also a problem of demolition failure or partial ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D9/00
CPCE02D9/00
Inventor 周建明
Owner SUZHOU NG FOUND ENG