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Buckling anchor system combined rock anchor

A combined and systematic technology, which is applied in the field of balanced cable anchorage and buckle-anchor system combined rock anchor, can solve the problem that the quality of the project cannot be well guaranteed, the anchorage cannot well meet the construction requirements, and the angle of the balanced cable The problems of high control precision can overcome the difficulty of setting anchors, the concrete pouring volume is small, and the construction is convenient.

Inactive Publication Date: 2014-02-12
CHINA RAILWAY 18TH BUREAU GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] According to the current construction practice of arch bridges at home and abroad, most of the anchorages of the same type of bridges adopt the anchorage of anchor pier, gravity type and tunnel type as the anchorage of buckle-anchor system. Anchorage, and at the same time it is necessary to solve the problems of high precision of balance cable angle control, great influence on slope protection construction and tight construction period, the above-mentioned anchorages of several structural forms cannot meet the construction requirements very well, and the project quality is also poor. can't be well guaranteed

Method used

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  • Buckling anchor system combined rock anchor
  • Buckling anchor system combined rock anchor
  • Buckling anchor system combined rock anchor

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Embodiment Construction

[0028] A combined rock anchor of buckle-anchor system is composed of a prestressed anchor cable 1, a reinforced concrete beam 2, a prestressed anchor bar 3, an anchor seat 4, an anchor box 6 and an anchor block 9. The anchor seat and the anchor box are hinged through the pin shaft 5, the anchor box is connected with the balance cable 8 through the P-type anchor, the anchor seat is fixed on the anchor block of the reinforced concrete beam through a plurality of prestressed anchor bars, and a section of the prestressed anchor bars wears The other section penetrates into the anchor seat, and the prestressed anchor cable penetrates into the reinforced concrete beam.

[0029] The above prestressed anchor cable is selected from 1860 type 7 5 steel strands, and adopt tension dispersion type arrangement. A bellows 17 is set on the outside of the prestressed anchor cable. The prestressed anchor cable is composed of an anchor section 11 and a free section 12. The head of the anchor se...

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Abstract

A buckling anchor system combined rock anchor comprises a reinforced concrete girder, a prestressed anchor cable, prestressed anchor ribs, an anchor seat, an anchor box and an anchor block; the anchor seat is hinged to the anchor box connected with a balance cable by a P-shaped anchor; the anchor seat is fixed on the anchor block of the reinforced concrete girder by multiple prestressed anchor ribs; one section of each prestressed anchor rib penetrates through the reinforced concrete girder while the other section penetrates into the anchor seat; the prestressed anchor cable penetrates through the reinforced concrete girder. The buckling anchor system combined rock anchor is clear in stressing, safe, reliable and convenient to construct and effectively overcomes the difficult problem that an anchorage is difficult to set under the condition of a steep side slope. The side slope does not need to be excavated in the construction process of the buckling anchor system combined rock anchor, the concrete pouring volume is less, and the defects of a heavy anchorage side slope that the excavating volume of side slope earth and rocks is large, the side slope protective work is influenced, the concrete pouring volume is large and the cost is high are overcome.

Description

technical field [0001] The invention belongs to equipment for building construction, and in particular relates to a combination rock anchor of buckle-anchor system. The device is an auxiliary facility for cantilever assembly of a stiff frame of a reinforced concrete arch bridge, and is especially suitable for a balanced cable anchor for stiff frame hoisting under steep slope conditions. Anchoring work. Background technique [0002] According to the current construction practice of arch bridges at home and abroad, most of the anchorages of the same type of bridges adopt the anchorage of anchor pier, gravity type and tunnel type as the anchorage of buckle-anchor system. Anchorage, and at the same time it is necessary to solve the problems of high precision of balance cable angle control, great influence on slope protection construction and tight construction period, the above-mentioned anchorages of several structural forms cannot meet the construction requirements very well, ...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D19/14
Inventor 杨继明樊秋林于长彬贺常松王新泽刘利严德育王永福
Owner CHINA RAILWAY 18TH BUREAU GRP CO LTD
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