Anchor recovering technology and anchor cable recovering technology in civil engineering

A technology for civil engineering and cable recovery, which is applied in infrastructure engineering, construction, sheet pile walls, etc. It can solve problems such as difficulty in pulling cables, inability to pull out recovery cables, and recovery costs, etc., and achieves low requirements for operating skills and facilitates construction , the effect of solid structure

Inactive Publication Date: 2004-08-25
陆观宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: (1) all "U"-shaped devices are all left underground, which is for one-time use, and the cost is high; (2) the positions of each "U" device are staggered, and the on-site construction is not easy to grasp; (3) Because the diameter of the steel strand's bending center is small because the aperture is small, when the steel strand passes through the "U"-shaped device and returns, it is more difficult to bind, so it is also more difficult to lower the cable; (4) due to the small diameter of the steel strand's bending center , it is more laborious to recycle, and it takes a long time to recycle with the help of jacks and other equipment; (5) The working rope can only be an even number, and the diameter of the steel strand should not be too large
The disadvantages of this method are: (1) the bearing body is the core part of the anchor cable, which is permanently placed in the ground for one-time use, and the cost is high; (2) the working cable is in a crimped state at the end of the bearing body, for Realize the anchorage of the carrier to the working cable. The recovery cable also bears a large anchoring force in the carrier. When the recovery cable is stretched, it needs to provide a large recovery force ("bang" can be heard at the hole when the recovery cable is pulled out. One bang), therefore, when the anchor cable is long, due to the frictional resistance of the free section, there may be a phenomenon that the recovery cable cannot be pulled out

Method used

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  • Anchor recovering technology and anchor cable recovering technology in civil engineering
  • Anchor recovering technology and anchor cable recovering technology in civil engineering
  • Anchor recovering technology and anchor cable recovering technology in civil engineering

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Embodiment 1

[0034] Such as Figure 1 to Figure 4 As shown in , a recovery anchor in civil engineering of the present invention is a two-cable recovery anchor, including an outer cylinder 1, a middle cylinder 2, an inner rod 3, a horizontal pin 4, a pin cap 5, a pull rod 6, and a sealing plate 7 And the positioning block 8, the outer cylinder 1 is a seamless steel pipe with a length of 450mm, a diameter of 83mm, and a wall thickness of 10mm, and two rows of four evenly distributed radial through holes are arranged on the wall of the outer cylinder 1 11; the middle tube 2 is a cylinder with a diameter of 61 mm and a length greater than the upper and lower positions of the through hole 11; a long hole 21 with a diameter of 20 mm and one-sided penetration is arranged axially in the middle of the middle tube 2, and the depth of the long hole 21 is greater than The upper and lower positions of the through holes 11; the middle cylinder 2 is provided with radial holes 22 corresponding to the eigh...

Embodiment 2

[0036] Such as Figure 5 to Figure 8As shown in , a recovery anchor in civil engineering of the present invention is a four-cable recovery anchor, including an outer cylinder 1, a middle cylinder 2, an inner rod 3, a horizontal pin 4, a pin cap 5, a pull rod 6, and a sealing plate 7 and the positioning block 8, the outer cylinder 1 is a seamless steel pipe with a length of 450mm, a diameter of 95mm, and a wall thickness of 10mm, and four rows of radial through holes are arranged on the wall of the outer cylinder 1 and each row is uniformly distributed. 11; the middle tube 2 is a metal cylinder with a diameter of 74mm and a length greater than the upper and lower positions of the through hole 11; the middle part of the middle tube 2 is provided with a single-sided long hole 21 with a diameter of 28mm in the axial direction, and the depth of the long hole 21 is greater than The upper and lower positions of the through holes 11; the middle cylinder 2 is provided with a radial hol...

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Abstract

The present invention discloses a technique for recovering anchorage device and recoverable anchor rope in the civil engineering. Said invention is mainly characterized by that it utilizes cross pin placed between an external cylinder and an intermediate cylinder and inner bar placed in the interior of intermediate cylinder to attain the goal of implementing fixation and release between the intemediate cylinder and external cylinder so as to implement recovery and utilization of anchor rope and main anchorage device.

Description

technical field [0001] The invention relates to an anchor cable in civil engineering and related technologies, more specifically, it relates to a recovery anchor and a recoverable anchor cable technology in civil engineering. Background technique [0002] Anchor cables are widely used in the support of underground foundation pits in my country. Compared with other support technologies, anchor cables have the advantages of low price, simple and mature construction, fast speed, and do not occupy the main construction face. One of the main techniques of protection. The biggest disadvantage of ordinary anchor cables is that the anchor cables cannot be recycled and left underground for a long time, occupying a large amount of underground space and forming permanent underground garbage, which has a great impact on the development of adjacent plots and the overall planning of the city in the future. Many countries and regions in the world have restricted the use of ordinary bolts a...

Claims

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Application Information

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IPC IPC(8): E02D5/74
Inventor 陆观宏
Owner 陆观宏
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