CN108018858A - A kind of detachable prestressed anchor cable anchorage - Google Patents
A kind of detachable prestressed anchor cable anchorage Download PDFInfo
- Publication number
- CN108018858A CN108018858A CN201711334074.9A CN201711334074A CN108018858A CN 108018858 A CN108018858 A CN 108018858A CN 201711334074 A CN201711334074 A CN 201711334074A CN 108018858 A CN108018858 A CN 108018858A
- Authority
- CN
- China
- Prior art keywords
- anchor cable
- hole
- steel strand
- strand wires
- bearing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
- E02D5/765—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of detachable prestressed anchor cable anchorage, its main feature is that bearing plate is equipped with central through hole and periphery taper hole, central through hole is connected by cavity with adjacent periphery taper hole, sliding block is equipped with cavity, periphery taper hole inner sleeve clamping piece, suit screwed pipe and intermediate plate in central through hole, the sliding block side is equipped with thread groove, opposite side is equipped with arc groove, sliding block is arranged in cavity, the thread groove of its side coordinates with screwed pipe, the arc groove of opposite side coordinates with anchor cable intermediate plate, steel strand wires in pivot through hole drive screwed pipe rotation, and exit bearing plate and enter seal cap inner cavity chamber, the space vacateed makes each sliding block to bearing plate center convergence, discharge constraint unlock of each anchor cable intermediate plate to steel strand wires, pull out steel strand wires and form recycling.The present invention has simple in structure compared with prior art, and anchor force is big, efficiently solve the problems, such as after anchor cable steel strand wires wire rod stress it is fragile, the rate of recovery is low etc., further reduce engineering cost.
Description
Technical field
The present invention relates to the prestress anchorage cable technical field of pattern foundation pit supporting structure, especially a kind of pressure dispersing type detachably in advance should
Power Anchor Cable Anchorage.
Background technology
At present, Recyclable anchor rope mainly has mechanical Recyclable anchor rope, hot melten type Recyclable anchor rope, the recyclable anchor of mechanics formula
The types such as rope, although Recyclable anchor rope species and construction technology are more, actual recovered rate and not up to design requirement, wherein machine
Tool formula Recyclable anchor rope causes waste of material in use due to the particularity of anchor head assembly（Such as n+1 types）, wire rod subduing lotus
It is damaged performance when influencing anchor cable stress and recycling down again；Heat molten type Recyclable anchor rope Inner bolt head installation accuracy requires very tight
Lattice, recycling hot melt system is easily damaged, influences the rate of recovery, and constructing operation requires very high.
Recyclable anchor rope anchor force deficiency, the wire rod rate of recovery of the prior art are low, in removal process after wire rod stress easily
Damage, causes waste of material, it is impossible to well adapt to underground space energy conservation and environmental protection, the idea of development of green construction.
The content of the invention
The purpose of the present invention is in view of the deficiencies of the prior art and provide a kind of detachable prestressed anchor cable anchorage, use
The self-locking structure of thread slider, anchor cable pass through the steel strand wires revealed section at pivot position by tensioning exposed junction, that is, lockable
Thread slider is driven to, centre thread slider is departed from bearing plate into the plenum chamber in sealing cover, steel strand wires front end folder
Piece release constraint unlocks, after remaining thread slider of surrounding converges to central slider position after pull-out steel strand wires, front end anchoring clamping piece solution
Recycling is formed except constraint can pull out remaining steel strand wires, and simple in structure, anchorage processing and easy for installation, construction speed is fast, recycling
Power is small and quick, and the anchorage anchor head occupancy underground space is few in the soil body, small to underground space pollution, efficiently solves anchor cable steel strand wires
Fragile after the wire rod stress, problem such as anchor force is insufficient, the rate of recovery is low, is resources conservation, green construction provides one kind and can return
The anchor head assembly of ring rope.
The object of the present invention is achieved like this：A kind of detachable prestressed anchor cable anchorage, including bearing plate, steel strand wires with
And the anchor cable intermediate plate being made of three pieces of circular cone pieces, its main feature is that bearing plate is equipped with what is be made of screwed pipe and sliding block and anchor cable intermediate plate
Inner bolt head is closed equipped with seal cap in Inner bolt head, bearing plate side, and opposite side is equipped with guard seal, seal cap and baffle and pressure-bearing
Plate is bolted connection, and the bearing plate is equipped with central through hole and the three periphery taper holes set with equilateral triangle, in
Heart through hole is connected by cavity with adjacent periphery taper hole；Suit anchor cable intermediate plate in the periphery taper hole；In the central through hole according to
Secondary suit screwed pipe and anchor cable intermediate plate；The screwed pipe is equipped with external screw thread, it is axially arranged with taper hole；The sliding block side is equipped with semicircle
Screw thread straight slot, opposite side are equipped with semicircle taper hole straight slot, and sliding block is arranged in cavity, half round thread straight slot of its side and screwed pipe
External screw thread coordinates, and semicircle taper hole straight slot and the anchor cable intermediate plate of opposite side coordinate, and the steel strand wires in pivot through hole, drive screwed pipe
Rotation is exited bearing plate and is entered in the chamber of seal cap, makes to be sleeved on the anchor cable intermediate plate on screwed pipe and discharges the steel strand wires and pull out
Going out, the space vacateed makes adjacent each sliding block to bearing plate center convergence, discharges constraint unlock of each anchor cable intermediate plate to steel strand wires,
Pull out steel strand wires and form recycling.
The present invention compared with prior art have it is simple in structure, anchor force is big, processing and it is easy for installation, construction speed is fast,
It is small and quick to recycle power, efficiently solve the problems, such as after anchor cable steel strand wires wire rod stress it is fragile, the rate of recovery is low etc., further reduce
Engineering cost.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is pressure-bearing plate structure schematic diagram；
Fig. 3 is the A-A sectional views of Fig. 1；
Fig. 4 is slide block structure schematic diagram；
Fig. 5 is conical tube structure schematic diagram.
Embodiment
Refering to attached drawing 1, in the present invention is formed by being sleeved on bearing plate 2 equipped with screwed pipe 9, anchor cable intermediate plate 10 and sliding block 11
Inner bolt head is closed equipped with seal cap 1 in anchor head, 2 side of bearing plate, and opposite side is sealed equipped with baffle 3, seal cap 1 and baffle
3 are fixedly connected with bearing plate 2 by bolt 8；The sliding block 11 is arranged in the cavity 22 of bearing plate 2, half round thread of its side
Straight slot 24 and the external screw thread 26 of screwed pipe 9 coordinate, and semicircle taper hole straight slot 25 and the anchor cable intermediate plate 10 of opposite side coordinate；The screwed pipe 9
Rotate and exit bearing plate 2 and enter in the chamber of seal cap 1, the anchor cable intermediate plate 10 for making to be sleeved in screwed pipe 9 discharges the steel strand wires 7
And be pulled out, the space vacateed makes center convergence of the adjacent each sliding block 11 to bearing plate 2, discharges each anchor cable intermediate plate 10 to steel
The constraint unlock of twisted wire 7, pulls out steel strand wires 7 and forms recycling.
Refering to attached drawing 2, the bearing plate 2 is equipped with central through hole 23 and the three periphery taper holes set with equilateral triangle
21, central through hole 23 is connected by cavity 22 with adjacent each periphery taper hole 21.
Refering to 3~Fig. 4 of attached drawing, anchor cable intermediate plate 10 and steel strand wires 7 are set with successively in the periphery taper hole 21；The center leads to
Screwed pipe 9, anchor cable intermediate plate 10 and steel strand wires 7 are set with hole 23 successively；Sliding block 11 is equipped with the cavity 22；11 side of sliding block
Equipped with half round thread straight slot 24, opposite side is equipped with semicircle taper hole straight slot 25, and sliding block 11 is arranged in cavity 22, the semicircle of its side
Screw thread straight slot 24 and the external screw thread 26 of screwed pipe 9 coordinate, and semicircle taper hole straight slot 25 and the anchor cable intermediate plate 10 of opposite side coordinate, and pass through rotation
Turning 7 exposed junction of steel strand wires in central through hole 23, drive screwed pipe 9, which rotates and exits bearing plate 2, to be entered in the chamber of seal cap 1,
The space vacateed makes adjacent each sliding block 11 to 2 center convergence of bearing plate so that each anchor cable intermediate plate 10 discharges the beam to steel strand wires 7
Unlock is tied up, steel strand wires 7 is pulled out and forms recycling.
The present invention so uses：Outer wrapping corrugated protective conduits 6 and PE protection pipes 5 are being kept off when steel strand wires 7 pass through baffle 3
Plate 3 and the junction brush seals glue 4 of protection pipe seal, and steel strand wires 7 are inserted into the anchor being arranged on bearing plate 2 after passing through baffle 3
In cord clip piece 10, by being by 10 snap-lock of anchor cable intermediate plate after tension steel strand 7.Twisted during recycling by the steel at pivot
7 exposed junction of line, drives screwed pipe 9 to rotate and exits bearing plate 2 and enter in the chamber of seal cap 1, and adjacent each sliding block 11 is to pressure-bearing
2 center convergence of plate, and remove bearing plate 2 and drop in the chamber of seal cap 1, the space vacateed causes each anchor cable intermediate plate 10 to discharge
Constraint unlock to steel strand wires 7, recycling can be formed by then pulling out steel strand wires 7.
With specific implementation, the invention will be further described below：
Embodiment 1
The construction of the present invention includes：Pit earthwork excavates and drilling and forming hole, anchor cable installation, slip casting maintenance, tensioning fixation, information
Monitoring, anchor cable recycling, specifically include following step：
（One）Pit earthwork excavates and drilling and forming hole
Pit earthwork is excavated to anchor cable construction operating surface, using drilling machine in the soil body drilling and forming hole, pore-forming aperture for 130mm ~
300mm, bore angle deviation ≯ 1 °, height difference ≯ 50mm, depth of pore forming are projected depth+300mm ~ 500mm mm.
（Two）, anchor cable installation
The projected depth position Inner bolt head that seal cap 1 and baffle 3 are closed being placed in completed anchor hole, seal cap 1 exist
About 500mm is drawn outside when being deep into anchor cable bottom hole portion, it is ensured that is kept at a distance with anchor hole bottom at anchor head end.
（Three）, slip casting maintenance
By cement mortar by anchor rope grouting pipe injection hole, slip casting is since bottom hole, untill cement grout is overflowed in aperture, such as
There is secondary grouting requirement, can also carry out secondary grouting, injecting cement paste intensity reaches design requirement and completes maintenance.
（Four）, anchorage cable stretching locking
After injecting cement paste intensity reaches design load, tensioning is carried out to the steel strand wires 7 of anchor cable, takes 10% ~ 20% withdrawal resistance special before tensioning
Value indicative reinstalls intermediate plate after unclamping 10 leveling steel strand wires of anchor cable intermediate plate every time, twists steel to the pre- tensioning of steel strand wires 1 time ~ 2 times
Line 7 is totally straight, and each location contacts are close, the classification of anchorage cable stretching load successively according to 10%, 50%, 75%, 100% and 110% ~
120% classification carries out.
（Five）, information monitoring
By the experiment of live anchor cable test pile and the prestressed monitoring Sensor monitoring pressure of work anchor, and according to sensor reading
Change, statistics and summary are made to anchor cable elastic displacement, load-moulding displacement, elongation change.
（Six）, anchor cable recycling
By being rotatably provided in 7 exposed junction of steel strand wires at 2 center of bearing plate during recycling, driven with the anchor cable intermediate plate 10 that it is engaged
Screwed pipe 9 rotates together, and screwed pipe 9, which rotates, to be exited bearing plate 2 and enter in the chamber of seal cap 1, and adjacent each sliding block 11 is to bearing plate 2
Center convergence, progressively the anchor cable intermediate plate 10 on removal bearing plate 2 to front end, comes off in the chamber of seal cap 1, anchor cable intermediate plate 10
Come off after discharging steel strand wires 7, you can steel strand wires 7 are pulled out out of anchor hole and form recycling.
Simply the invention will be further described above, and is not used to limit patent of the present invention, all for the equivalent reality of the present invention
Apply, be intended to be limited solely by within the right of patent of the present invention.
Claims (1)
1. a kind of detachable prestressed anchor cable anchorage, including bearing plate, steel strand wires and the anchor cable folder being made of three pieces of circular cone pieces
Piece, it is characterised in that bearing plate is equipped with the Inner bolt head being made of screwed pipe and sliding block and anchor cable intermediate plate, and bearing plate side is equipped with close
Sealing cap closes Inner bolt head, and opposite side is equipped with guard seal, and seal cap and baffle are bolted with bearing plate and are connected, described to hold
Pressing plate is equipped with central through hole and the three periphery taper holes set with equilateral triangle, and central through hole is by cavity and adjacent periphery
Taper hole connects；Suit anchor cable intermediate plate in the periphery taper hole；Screwed pipe and anchor cable intermediate plate are set with the central through hole successively；It is described
Screwed pipe is equipped with external screw thread, it is axially arranged with taper hole；The sliding block side is equipped with half round thread straight slot, and opposite side is equipped with half-conical
Hole straight slot, sliding block are arranged in cavity, and half round thread straight slot of its side and the external screw thread of screwed pipe coordinate, the half-conical of opposite side
Hole straight slot coordinates with anchor cable intermediate plate, the steel strand wires in pivot through hole, drives screwed pipe rotation to exit bearing plate and enters sealing
In the chamber of cap, adjacent each sliding block is set to discharge constraint unlock of each anchor cable intermediate plate to steel strand wires to bearing plate center convergence, draw
Go out steel strand wires and form recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711334074.9A CN108018858A (en) | 2017-12-14 | 2017-12-14 | A kind of detachable prestressed anchor cable anchorage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711334074.9A CN108018858A (en) | 2017-12-14 | 2017-12-14 | A kind of detachable prestressed anchor cable anchorage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108018858A true CN108018858A (en) | 2018-05-11 |
Family
ID=62073547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711334074.9A Pending CN108018858A (en) | 2017-12-14 | 2017-12-14 | A kind of detachable prestressed anchor cable anchorage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108018858A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004827A (en) * | 2019-04-02 | 2019-07-12 | 中国建筑第二工程局有限公司 | A kind of anchor cable tripper |
| CN111608177A (en) * | 2020-06-19 | 2020-09-01 | 华侨大学 | High-pressure-resistant recyclable anchor rod and construction method thereof |
| CN111997048A (en) * | 2020-07-03 | 2020-11-27 | 中北大学 | Multifunctional recyclable anchor rod |
| CN113006061A (en) * | 2021-03-05 | 2021-06-22 | 浙江大学 | Pressure type recoverable anchor cable structure and construction method |
| CN113136872A (en) * | 2021-04-13 | 2021-07-20 | 沈阳工业大学 | Mechanical type knob detachable prestressed anchorage cable structure of solid useless grout material |
| CN113463515A (en) * | 2021-07-18 | 2021-10-01 | 广西路建工程集团有限公司 | Construction method of double-sealing inhaul cable anchorage device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694098A (en) * | 2009-10-13 | 2010-04-14 | 上海智平基础工程有限公司 | Recyclable prestressed tendon for soft oil support and construction method thereof |
| CN106088088A (en) * | 2016-08-08 | 2016-11-09 | 上海强劲地基工程股份有限公司 | The stress decentralized stiffening pile of recyclable dowel and construction method thereof |
| CN207619982U (en) * | 2017-12-14 | 2018-07-17 | 上海智平基础工程有限公司 | A kind of detachable prestressed anchor cable anchorage |
-
2017
- 2017-12-14 CN CN201711334074.9A patent/CN108018858A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694098A (en) * | 2009-10-13 | 2010-04-14 | 上海智平基础工程有限公司 | Recyclable prestressed tendon for soft oil support and construction method thereof |
| CN106088088A (en) * | 2016-08-08 | 2016-11-09 | 上海强劲地基工程股份有限公司 | The stress decentralized stiffening pile of recyclable dowel and construction method thereof |
| CN207619982U (en) * | 2017-12-14 | 2018-07-17 | 上海智平基础工程有限公司 | A kind of detachable prestressed anchor cable anchorage |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004827A (en) * | 2019-04-02 | 2019-07-12 | 中国建筑第二工程局有限公司 | A kind of anchor cable tripper |
| CN110004827B (en) * | 2019-04-02 | 2024-01-16 | 中国建筑第二工程局有限公司 | Anchor rope unlocking device |
| CN111608177A (en) * | 2020-06-19 | 2020-09-01 | 华侨大学 | High-pressure-resistant recyclable anchor rod and construction method thereof |
| CN111997048A (en) * | 2020-07-03 | 2020-11-27 | 中北大学 | Multifunctional recyclable anchor rod |
| CN111997048B (en) * | 2020-07-03 | 2021-09-17 | 中北大学 | Multifunctional recyclable anchor rod or anchor cable |
| 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 |
| CN113136872A (en) * | 2021-04-13 | 2021-07-20 | 沈阳工业大学 | Mechanical type knob detachable prestressed anchorage cable structure of solid useless grout material |
| CN113463515A (en) * | 2021-07-18 | 2021-10-01 | 广西路建工程集团有限公司 | Construction method of double-sealing inhaul cable anchorage device |
| CN113463515B (en) * | 2021-07-18 | 2023-01-03 | 广西路建工程集团有限公司 | Construction method of double-sealing inhaul cable anchorage device |
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