CN2667007Y

CN2667007Y - Multi-stage prestressed finished anchorage cable

Info

Publication number: CN2667007Y
Application number: CN 03205155
Authority: CN
Inventors: 甘国荣; 吕兵; 廖松山; 杨雄文; 陈文杰; 甘秋萍
Original assignee: Liuzhou OVM Machinery Co Ltd
Current assignee: Liuzhou OVM Machinery Co Ltd
Priority date: 2003-07-24
Filing date: 2003-07-24
Publication date: 2004-12-29
Anticipated expiration: 2013-07-24

Abstract

The utility model relates to a multi-stage prestressed finished anchorage cable comprising an inner anchorage section I, a free section II and an anchor head, characterized in that the inner anchorage section I consists of non-bond steel wire strands and 1-8 elliptic bearing components 8; the free section II an alignment frame 6, a non-bond steel wire strand bundle 5 covered with a PE layer or cased with a PVC hose and restriction rings 4 and 7; and the anchor head is an ordinary anchor head, or a sealed anchor head consisting of an airtight tube 11, an anchor plate 2, an anchorage and a protective cover 13; bond section 16 on one end of each non-bond steel wire strand 9 in the inner anchorage section I after removing PE is extruded into a P anchor by an extrusion sheath; epoxy resin 17 consolidates each P anchor, a bearing plate 14 and non-bond steel wire strands 9 into the elliptic bearing component 8; each non-bond steel wire strand of an anchor cable runs across the elliptic bearing components 8 and reaches the anchor head through the free section II. The anchor cable can be wholly manufactured within a factory and has the advantages of better anticorrosion performance, convenient construction and helping to guarantee construction quality.

Description

Multi-stag prestressing force finished product anchor cable

Technical field:

The utility model relates to a kind of presstressed reinforcing steel anchoring body device, the monolithic prestressing force finished product anchor cable that particularly a kind of ground anchorage is used.

Background technology:

In current geotechnical engineering practice, life requirement to prestress anchorage cable is more and more higher, and the prestress anchorage cable that existing ground anchorage is used generally adopts assembled on site, loose formula, its anti-corrosion measure is also perfect inadequately, and the also difficult control quality of production of assembled on site, thereby, difficulty reaches high-level requirement for anticorrosion, brings great hidden danger for the long-term safety operation of engineering.In recent years, though there is the integrated anchor cable of minority to occur, because its emphasis difference of dealing with problems, structure is also different, and the scope of application has nothing in common with each other; As ZL00218172X described " a kind of anchor is annotated integrated tubular type anchor cable ", total length is made up of threaded steel pipe or seamless steel pipe, and its scope of application is restricted.

Summary of the invention:

The technical problems to be solved in the utility model is: existing ground anchorage is perfect inadequately with the prestress anchorage cable anti-corrosion measure, and the assembled on site construction is unfavorable for controlling product quality, the inconvenient problem of construction, provide a kind of in factory integral manufacturing, have better antiseptic property, and easy construction, be beneficial to the monolithic finished product anchor cable that guarantees construction quality.

The scheme that solves its above-mentioned technical problem is: a kind of multi-stag prestressing force finished product anchor cable, anchoring section I in comprising, free section II, outer anchor head III, it is characterized in that: anchoring section I is by non-bending steel cable in described, 1～8 oval bearing assembly constitutes, described free section II is by the centering frame, the lining PE layer or put the PVC flexible pipe after the non-bending steel cable bundle, the constraint circle constitutes, outer anchor head III is common outer anchor head or sealed outer anchor head, the bonding portion that has that each root non-bending steel cable one end of interior anchoring section I divests behind the PE is extruded the single P of the being squeezed into anchor of cover, epoxy resin is with each P anchor, bearing plate and non-bending steel cable are consolidated into one and form oval bearing assembly, and the non-bending steel cable bundle of this anchor cable passes oval bearing assembly by through outer anchor head behind hot extrude PE overcoat or the PVC flexible pipe.

As a kind of conversion of the present utility model, described outer anchor head also can add upper seal bore, fills with anticorrosion grease in the sealing drum.

The multi-stag prestressing force finished product anchor cable of the utility model is owing to the beneficial effect that adopts said structure to produce is:

1, improved the antiseptic property of whole anchor cable, more can guarantee the long-term functional performance of anchor cable body: in interior anchored end---the oval bearing assembly of being made by the single extruding of non-bending steel cable, the fixed extruded sleeve of epoxy resin, bearing plate can provide the multi-layer anticorrosion protection, and it is stuck that anchor cable is difficult in the hole; Free section II is by the centering frame, lining PE layer or put the PVC flexible pipe after the non-bending steel cable bundle, the constraint circle constitutes, because multilayer proofing, improved free section whole antiseptic property, outside anchor head---adopt pipe protection in the sealing drum, also improved the antiseptic property of anchor head.

2, can reduce the peak stress of anchoring section in the anchor cable significantly, bigger anchored force is provided, durability is also better simultaneously.

3, adopt the monolithic anchor cable of the utility model, need not assembled on site, simplified construction technology, and can adopt notes formula construction behind the first anchor, disposable slip casting, help accelerating speed of application, be convenient to the management and the raising of workmanship;

But 4 batch production productions are convenient to guarantee product quality.

Description of drawings:

The multi-stag prestressing force finished product anchor cable structure schematic diagram of Fig. 1: embodiment one;

The multi-stag prestressing force finished product anchor cable structure schematic diagram of Fig. 2: embodiment two;

Oval bearing assembly structural representation among Fig. 3: Fig. 1, Fig. 2.

The specific embodiment:

Embodiment one:

A kind of multi-stag prestressing force finished product anchor cable; anchoring section I in comprising; free section II; outer anchor head III; anchoring section I is by non-bending steel cable in described; 1～8 oval bearing assembly 8 constitutes; described free section II is by centering frame 6; the lining PE layer or put the PVC flexible pipe after non-bending steel cable bundle 5; constraint circle 4; 7 constitute; the bonding portion 16 that has that each root non-bending steel cable 9 one end of interior anchoring section I divest behind the PE is extruded the cover 15 single P of being squeezed into anchors; epoxy resin 17 is with each P anchor; bearing plate 14 and non-bending steel cable 9 are consolidated into one and form oval bearing assembly 8; described outer anchor head III is by anchor plate 2; ground tackle 1; protective cover 13 compositions such as grade, non-bending steel cable bundle 5 enters anchoring behind the outer anchor head III by constraint circle 4; and divest PE and become the bonding steel strand are arranged.

Embodiment two:

A kind of multi-stag prestressing force finished product anchor cable with sealing drum; anchoring section I, free section II, outer anchor head III in comprising; basic structure of anchoring section I, free section II is with embodiment one in it; institute's difference is: the sealed outer anchor head that described outer anchor head III is made up of sealing drum 11, anchor plate 2, ground tackle 1, protective cover 13 etc.; non-bending steel cable bundle 5 enters outer anchor head sealing drum 11 anchorings afterwards by constraint circle 4 and divests PE to be become the bonding steel strand is arranged, and fills with anticorrosion grease in the sealing drum.

Among Fig. 1, Fig. 2: 3-permeability cell, 6-centering frame, 12-Grouting Pipe, 18-spiral bar.

Claims

1, a kind of multi-stag prestressing force finished product anchor cable, comprise interior anchoring section (I), free section (II), outer anchor head (III), it is characterized in that: anchoring section (I) is by non-bending steel cable in described, (1～8) individual oval bearing assembly (8) constitutes, described free section (II) is by centering frame (6), the lining PE layer or put the PVC flexible pipe after non-bending steel cable bundle (5), constraint circle (4), (7) constitute, outer anchor head (III) is common outer anchor head or sealed outer anchor head, the bonding portion (16) that has that each root non-bending steel cable (9) one end of interior anchoring section (I) divest behind the PE is extruded the single P of the being squeezed into anchor of cover (15), and epoxy resin (17) is with each P anchor, bearing plate (14) and non-bending steel cable (9) are consolidated into one and form oval bearing assembly (8).

2, according to the described multi-stag prestressing force of claim (1) finished product anchor cable; it is characterized in that: the sealed outer anchor head that described outer anchor head (III) is made up of sealing drum (11), anchor plate (2), ground tackle (1), protective cover (13); non-bending steel cable bundle (5) enters outer anchor head sealing drum (11) back anchoring by constraint circle (4) and divests PE to be become and the bonding steel strand is arranged, the anticorrosion grease of injection in the sealing drum (11).