A prestressed anchor cable and its inner anchor bearing body

A bearing body and inner anchoring technology, which is applied in construction, sheet pile wall, foundation structure engineering, etc., can solve the problem that the inner anchor bearing body is not tightly combined with the surrounding grouting body, and achieves simple structure, uniform and reasonable stress distribution, close-knit effect

Active Publication Date: 2016-01-20
昊鼎地基基础工程有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide an inner anchor carrier, which aims to solve the problem that the existing inner anchor carrier and the surrounding grouting body are not tightly combined; at the same time, the purpose of the present invention is also to provide a Prestressed anchor cables suitable for foundation pit engineering

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  • A prestressed anchor cable and its inner anchor bearing body
  • A prestressed anchor cable and its inner anchor bearing body
  • A prestressed anchor cable and its inner anchor bearing body

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no. 1 example

[0028] The first embodiment of the inner anchor carrier in the present invention: as figure 1 As shown, the inner anchor carrier 1 includes a rod body 11, the connecting body that fixes the rod body 11 and makes it spaced is a short rod body 12, the number of the rod body 11 is 3, and the number of the short rod body 12 is 6. Both of them are cut with 18mm diameter steel bars, and then welded and fixed into a cage-shaped cylinder. The diameter of the central through hole of the cage-shaped cylinder is 20mm, which can be used for the steel strands of Φ13, Φ15, and Φ18 commonly used in China. However, the length of the rod body 11 is 400 mm, and the length of the short rod body 12 is 75 mm. The inner anchor bearing body 1 has a wide range of materials and is easy to process. It can be threaded with a steel strand and has a compact structure, which is conducive to lowering and grouting of anchor cables.

[0029] When the inner anchor carrier 1 is used, the outer end surfaces of ...

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Abstract

The invention discloses a pre-stressed anchor cable and an inner anchoring supporting body thereof. The pre-stressed anchor cable comprises an inhaul cable and the inner anchoring supporting body fixedly connected to the inhaul cable, wherein the inner anchoring supporting body comprises rod bodies which are vertically arranged at intervals and connecting bodies which are located at two ends of each rod body and fixedly connect the rod bodies together, the rod bodies and the connecting bodies surround to form a cage-shaped cylinder, the cage-shaped cylinder is provided with a pressure bearing face at the end, an anchor cable through hole is arranged in the center of the cage-shaped cylinder, and an inhaul cable can penetrate through the anchor cable through hole. The inner anchoring supporting body is the cage-shaped cylinder, and grouting can flow into the interior of the inner anchoring supporting body, and therefore the inner anchoring supporting body and the grouting are bonded fully and combined compactly. When the inhaul cable is stretched and drawn, the inner anchoring supporting body can apply not only pressure but also tensile force to the grouting, wherein the tensile force predominates, and therefore the cage-shaped supporting body can disperse loads transmitted by the inhaul cable well, reduce stress concentration, and avoid a phenomenon of crushing the grouting in front of the supporting body.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering anchoring, and in particular relates to an inner anchoring carrier, and also relates to a prestressed anchor cable using the inner anchoring carrier. Background technique [0002] Prestressed anchor cable is an anchoring system that can withstand tension and transmit tension to stable rock formations or soils. It is widely used in various fields of geotechnical reinforcement engineering, such as slope stability engineering, underground cavern engineering, structural Anti-floating engineering, deep foundation pit engineering and high-pressure water pipeline engineering, etc. [0003] The prestressed anchor cable includes the anchor cable bundle body (referred to as the bundle body), the outer anchor head and the anchor hole. The inner end is consolidated with the bottom of the anchor hole, the outer end is connected with the outer anchor head, and the middle part plays the role of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/74E02D5/76
Inventor 王保军王坤王素勤
Owner 昊鼎地基基础工程有限公司
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