CN201809768U - Recyclable pre-stressing anchor rope with U-shaped anchoring head - Google Patents
Recyclable pre-stressing anchor rope with U-shaped anchoring head Download PDFInfo
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- CN201809768U CN201809768U CN2010201384059U CN201020138405U CN201809768U CN 201809768 U CN201809768 U CN 201809768U CN 2010201384059 U CN2010201384059 U CN 2010201384059U CN 201020138405 U CN201020138405 U CN 201020138405U CN 201809768 U CN201809768 U CN 201809768U
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Abstract
The utility model discloses a recyclable pre-stressing anchor rope with a U-shaped anchor head, comprising an outer anchoring section, a free section and an inner anchor section, wherein the outer anchoring section comprises an outer anchor tool, a support and an anchor pier; and the free section comprises a centering isolation bracket, an injection pipe and a steel strand. The recyclable pre-stressing anchor rope is characterized in that the inner anchor section consists of a guiding cap, a joining steel sheet, inner anchor section sleeves, a support steel pipe and a U-shaped inner anchor head, wherein the U-shaped inner anchor head is formed by penetrating one steel strand in and out of the two inner anchor section sleeves, the inner anchor section sleeves are connected with the joining steel sheet, the U-shaped inner anchor head is sheathed into the guiding cap, and two ends of the support steel pipe are respectively connected with the guiding cap and the joining steel sheet. In the utility model, the construction is simple relatively, the anchor rope can be processed and manufactured at the construction site, the placement and the operation are easy, the residual underground steel bar is relatively fewer, the recycling rate is high, the recycling cost is low, the labor intensity is low, the larger anchoring force can be provided, the recycling and the construction are simple and convenient, and good effect can be obtained in the practical application.
Description
Technical field
The utility model relates to a kind of prestress anchorage cable, relates in particular to the recoverable prestressed anchor cable of a kind of U type anchor head.
Background technology
The prestressed anchor reinforcement supporting is a kind of important support form of building foundation pit, is used in the supporting of down town deep foundation ditch that safe class is had relatively high expectations more.Along with the development of society, building land is more and more nervous, and foundation depth is also along with increasing, and therefore also more and more higher to the requirement of safe class, the prestressed anchor reinforcement technology has also more highlighted the critical role of oneself.Yet, widespread usage along with prestress anchorage cable, the not recyclable property of general anchor cable has also been brought very big social concern, and corrosion causes pollution, anchor cable to soil to invade building line as anchor cable influences the construction of next architectural planning land used, interim foundation ditch with wasting of resources that anchor cable caused or the like.At the problems referred to above, each ground worker has proposed this novel anchor pole form of recoverable anchor rod, and has made a large amount of demonstration testings for this reason through site operation experience and experimental study for many years, worked out multiple recoverable anchor rod, made major contribution for addressing the above problem.But there is following shortcoming in present recoverable prestress anchorage cable: complex structure, and the anchor head processing difficulties needs specialized factory's processing, and cost is higher; Whole slip casting, the anchor head place causes the breakage of outsourcing sebific duct, lumps to enter arc groove easily and causes the frictional resistance increase and be difficult for recovery when reclaiming; When anchor cable was laid construction behind pore-forming, easy and surrounding soil bonded together, and made and laid comparatively difficulty, caused the hole plug-hole that collapses easily; Reclaim constructional difficulties, the rate of recovery is little, because that anchor head is provided with is excessive long, particularly under the situation of multistage anchor head, it is more to remain in underground anchor head number of steel bars.
The utility model content
Technical problem to be solved in the utility model provides the recoverable prestressed anchor cable of a kind of U type anchor head, has overcome the shortcoming of above-mentioned prior art.
Technical problem to be solved in the utility model is achieved through the following technical solutions:
The recoverable prestressed anchor cable of a kind of U type anchor head, comprise outer anchor section and free section, outer anchor section comprises outer ground tackle, base and anchor pier, free section comprises centering isolation mount, Grouting Pipe and steel strand, it is characterized in that: described prestress anchorage cable also comprises interior anchor section, is made of anchor head in guiding cap, linking steel disc, interior anchor section sleeve pipe, supporting steel pipe and the U type;
Anchor head is a steel strand one-in-and-one-out to be penetrated two interior anchor section sleeve pipes respectively constitute in the described U type;
Anchor section sleeve pipe is connected with the linking steel disc in described, and anchor head is inserted in the guiding cap in the described U type, and described supporting steel pipe two ends are connected with the linking steel disc with guiding cap respectively.
After steel strand are all evenly smeared with butter in the free section, overcoat PVC plastic bushing; Described PVC plastic bushing is connected with interior anchor section sleeve pipe.Smear steel strand with butter, and use casing protection, prevent mud, concrete intrusion, steel strand and concrete adhesion can't be extracted, or corrosion can't utilize again.
Anchor section sleeve pipe and the welding of linking steel disc in described; Described supporting steel pipe two ends are respectively with guiding cap with is connected steel disc and welds.
The centering isolation mount is housed on the described steel strand; Described Grouting Pipe is installed between two sections steel strand of free section.Load onto Grouting Pipe, and steel strand are separated with the centering isolation mount every 1.5-2m, the colligation of bundle silk is firm.
The utlity model has following advantage:
The recoverable prestressed anchor cable of the utility model U type anchor head is textural simple relatively, at the construction field (site) processing and fabricating; Do not have slurries to enter at the anchor head place, guaranteed that anchor head U type is in the smooth recovery when reclaiming; Be easy to lay operation; It is less relatively to remain in underground reinforcing bar, rate of recovery height, and it is longer to reclaim the steel strand length that obtains, and alternative building site is more when reusing.Cost is little during recovery, and labor strength is low, and bigger anchored force can be provided, and reclaims easy construction, has obtained good effect in actual applications.
Description of drawings
Fig. 1 the utility model structural representation
Fig. 2 the utility model 1-1 sectional drawing
Fig. 3 the utility model 2-2 sectional drawing
Anchor head drawing in Fig. 4 the utility model
Fig. 5 the utility model guiding cap drawing
The outer anchor section elevation of Fig. 6 the utility model
The outer anchor section front view of Fig. 7 the utility model
The outer anchor section side view of Fig. 8 the utility model
Fig. 9 the utility model anchor cable recovery apparatus scheme of installation
The specific embodiment
The utility model is described in further detail below in conjunction with Figure of description.
To shown in Figure 5, the recoverable prestressed anchor cable of U type anchor head is made up of interior anchor section, free section, outer anchor section three parts, comprises outer ground tackle 1 as Fig. 1, base 2, anchor pier 3, PVC plastic bushing 4, steel strand 5, centering isolation mount 6, Grouting Pipe 7, cement stone 8, guiding cap 9, be connected steel disc 10, anchor head 12 in the supporting steel pipe 11, U type.
Described steel strand 5 penetrate earlier the outer ground tackle 1 of outer anchor section respectively, base 2 and anchor pier 3, be with PVC plastic bushing 4 outside the steel strand of free section, free section also is equipped with Grouting Pipe 7 and centering isolation mount 6, and last one-in-and-one-out penetrates two interior anchor section sleeve pipes respectively and constitutes anchor head 12 in the U type.Anchor section sleeve pipe and be connected steel disc 10 and connect in described, anchor head 12 is inserted in the guiding cap 9 in the described U type, and described supporting steel pipe 11 two ends are respectively with guiding cap 9 be connected steel disc 10 and weld.
Anchor cable length is made up of interior anchor section, free section, outer anchor section, free section promptly is roughly the length that anchored force cement stone 8 is provided, and interior anchor segment length is generally got about 50cm, and outer anchor section is got about 100cm, just can obtain the substantial distance of anchor cable thus, adjust again according to the practice of construction needs.
As Fig. 6, Fig. 7 and Fig. 8 is practice of construction China and foreign countries anchor section construction schematic diagram, comprises steel strand 5, outer ground tackle 1, billet 13, soldier pile 14, channel-section steel waist rail 15, concrete 16 between stake, the floor 17 of putting more energy into.Wherein channel-section steel waist rail 15 should meet certain rigidity requirement; The floor 17 of putting more energy into is and the contour steel plate of channel-section steel to be welded in channel-section steel inside at interval by 2m, raising channel-section steel rigidity.
After deep foundation ditch is finished the use task, carry out backfill, just can reclaim construction, generally can reclaim to the following 0.5m-1.0m of anchor cable absolute altitude place at pit backfill to anchor cable through after the reasonable computation.All scribble butter on the recyclable anchor cable body of rod, and protected with plastic bushing, guarantee that the body of rod does not have any bonding with concrete after slip casting, the body of rod can be free movable when promptly not stressing at light state like this.
The recovery of anchor cable is as shown in Figure 9: wherein soldier pile 14, concrete 16 between stake, outer ground tackle 1, channel-section steel waist rail 15, connector 18, support 19, vertically-displacable jack 20.
Removal process is: use connector 18 with outer anchor section steel strand 5 spreadings earlier, load onto support 19, jack 20, anchor cable is destroyed stretch-draw, this moment, the oil meter reading sharply descended; Then reclaim outer ground tackle 1, the channel-section steel inner concrete is removed totally, steel strand 5 are in free state; Load onto jack at last, steel strand are pulled out.
Claims (6)
1. recoverable prestressed anchor cable of U type anchor head, comprise outer anchor section and free section, outer anchor section comprises outer ground tackle, base and anchor pier, free section comprises centering isolation mount, Grouting Pipe and steel strand, it is characterized in that: described prestress anchorage cable also comprises interior anchor section, is made of anchor head in guiding cap, linking steel disc, interior anchor section sleeve pipe, supporting steel pipe and the U type;
Anchor head is a steel strand one-in-and-one-out to be penetrated two interior anchor section sleeve pipes respectively constitute in the described U type;
Anchor section sleeve pipe is connected with the linking steel disc in described, and anchor head is inserted in the guiding cap in the described U type, and described supporting steel pipe two ends are connected with the linking steel disc with guiding cap respectively.
2. the recoverable prestressed anchor cable of U type anchor head as claimed in claim 1 is characterized in that: the centering isolation mount is housed on the described steel strand.
3. the recoverable prestressed anchor cable of U type anchor head as claimed in claim 1 is characterized in that: steel strand overcoat PVC plastic bushing in the free section.
4. the recoverable prestressed anchor cable of U type anchor head as claimed in claim 1 is characterized in that: described PVC plastic bushing is connected with interior anchor section sleeve pipe.
5. the recoverable prestressed anchor cable of U type anchor head as claimed in claim 1 is characterized in that: anchor section sleeve pipe and the welding of linking steel disc in described; Described supporting steel pipe two ends are respectively with guiding cap with is connected steel disc and welds.
6. the recoverable prestressed anchor cable of U type anchor head as claimed in claim 1 is characterized in that: described Grouting Pipe is installed between two sections steel strand of free section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201384059U CN201809768U (en) | 2010-03-23 | 2010-03-23 | Recyclable pre-stressing anchor rope with U-shaped anchoring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201384059U CN201809768U (en) | 2010-03-23 | 2010-03-23 | Recyclable pre-stressing anchor rope with U-shaped anchoring head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201809768U true CN201809768U (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201384059U Expired - Fee Related CN201809768U (en) | 2010-03-23 | 2010-03-23 | Recyclable pre-stressing anchor rope with U-shaped anchoring head |
Country Status (1)
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|---|---|
| CN (1) | CN201809768U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392444A (en) * | 2011-10-26 | 2012-03-28 | 中冶集团武汉勘察研究院有限公司 | Easily-recycled anchor rod device and recycling method |
| CN102561337A (en) * | 2012-02-09 | 2012-07-11 | 上海强劲地基工程股份有限公司 | Sand-filling stiffening pile |
| CN105672324A (en) * | 2016-01-22 | 2016-06-15 | 山东大学 | Construction method of recyclable assembled composite soil-nailed wall support based on anchor cables and soil nails |
| CN105672325A (en) * | 2016-01-22 | 2016-06-15 | 山东大学 | Recoverable assembly type composite soil nailing wall supporting structure system based on anchor cables and soil nails |
| CN106522250A (en) * | 2016-12-30 | 2017-03-22 | 西南交通大学 | Prestress anchoring structure suitable for freeze thawed-slope reinforcement in frozen soil region |
| CN112252335A (en) * | 2020-11-19 | 2021-01-22 | 贵州建工集团第一建筑工程有限责任公司 | Building foundation pit pile anchor combined supporting structure |
| CN113006061A (en) * | 2021-03-05 | 2021-06-22 | 浙江大学 | Pressure type recoverable anchor cable structure and construction method |
| CN113123373A (en) * | 2021-04-23 | 2021-07-16 | 建研地基基础工程有限责任公司 | Pressure-bearing uplift pile with rear-inserted unbonded steel strand U-shaped pipe and construction method thereof |
-
2010
- 2010-03-23 CN CN2010201384059U patent/CN201809768U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392444A (en) * | 2011-10-26 | 2012-03-28 | 中冶集团武汉勘察研究院有限公司 | Easily-recycled anchor rod device and recycling method |
| CN102561337A (en) * | 2012-02-09 | 2012-07-11 | 上海强劲地基工程股份有限公司 | Sand-filling stiffening pile |
| CN105672324A (en) * | 2016-01-22 | 2016-06-15 | 山东大学 | Construction method of recyclable assembled composite soil-nailed wall support based on anchor cables and soil nails |
| CN105672325A (en) * | 2016-01-22 | 2016-06-15 | 山东大学 | Recoverable assembly type composite soil nailing wall supporting structure system based on anchor cables and soil nails |
| CN105672325B (en) * | 2016-01-22 | 2017-12-05 | 山东大学 | Recyclable assembled Foundation Supported with Composite Soil Nailing system based on anchor cable and soil nailing |
| CN105672324B (en) * | 2016-01-22 | 2017-12-05 | 山东大学 | The construction method of recyclable assembled Composition Soil Nailing Walls based on anchor cable and soil nailing |
| CN106522250A (en) * | 2016-12-30 | 2017-03-22 | 西南交通大学 | Prestress anchoring structure suitable for freeze thawed-slope reinforcement in frozen soil region |
| CN112252335A (en) * | 2020-11-19 | 2021-01-22 | 贵州建工集团第一建筑工程有限责任公司 | Building foundation pit pile anchor combined supporting structure |
| CN113006061A (en) * | 2021-03-05 | 2021-06-22 | 浙江大学 | Pressure type recoverable anchor cable structure and construction method |
| CN113006061B (en) * | 2021-03-05 | 2021-11-16 | 浙江大学 | Pressure type recoverable anchor cable structure and construction method |
| CN113123373A (en) * | 2021-04-23 | 2021-07-16 | 建研地基基础工程有限责任公司 | Pressure-bearing uplift pile with rear-inserted unbonded steel strand U-shaped pipe and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20170323 |