CN202595736U - Detachable and recyclable pre-stress anchor cable - Google Patents
Detachable and recyclable pre-stress anchor cable Download PDFInfo
- Publication number
- CN202595736U CN202595736U CN 201220101551 CN201220101551U CN202595736U CN 202595736 U CN202595736 U CN 202595736U CN 201220101551 CN201220101551 CN 201220101551 CN 201220101551 U CN201220101551 U CN 201220101551U CN 202595736 U CN202595736 U CN 202595736U
- Authority
- CN
- China
- Prior art keywords
- pressure
- bearing
- steel strand
- anchor cable
- circular 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 238000011084 recovery Methods 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 8
- 238000004873 anchoring Methods 0.000 description 18
- 239000002689 soil Substances 0.000 description 13
- 238000010276 construction Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model belongs to the field of an anchor fixing device in geotechnical engineering and especially relates to a detachable and recyclable pre-stress anchor cable. The detachable and recyclable pre-stress anchor cable is characterized in that a pressure-bearing circular plate is arranged at the front end of an anchor cable; a pressure-bearing bending semicircular plate which is vertical to a plane of the pressure-bearing circular plate is arranged on one side surface of the pressure-bearing circular plate; a groove is arranged on the pressure-bearing bending semicircular plate; two stiffening rib plates are fixedly connected with the pressure-bearing circular plate and the pressure-bearing bending semicircular plate; the other side surface of the pressure-bearing circular plate is connected with a pressure disperser; a steel strand is U-shaped; the front end of the steel strand is arranged in the groove of the pressure-bearing bending semicircular plate; the middle section and the tail section of the steel strand extend on the side surface of the whole anchor cable; and an external anchor fixing system is arranged at the tail end of the anchor cable. The utility model aims to provide the anchor cable which has the advantages of convenience in dismounting, high bearing capacity and high reliability.
Description
Technical field
The utility model belongs to anchor device field in the geotechnical engineering, particularly relates to a kind of detachable and the prestress anchorage cable that reclaims.
Background technology
Present stage engineering construction scale progressively enlarges, and the excavation of foundation pit degree of depth strengthens gradually, and also more and more to the demand of prestress anchorage cable, single anchor cable length is also more and more longer.Anchor cable is used in China's underground engineering construction very extensively as a kind of support anchoring structure.It has the reliability height, and bearing capacity is big, and construction cost is low, and speed of application is fast, technology maturation, and the operation element face is little, the many-sided advantage of the little grade of structure exposed parts.But there is following shortcoming simultaneously:
1. anchor cable need take a large amount of underground spaces (more than 40 meter of up) in the supporting and protection structure outside, occupies through regular meeting beyond the red line of construction land, and this is unallowed legally, brings obstacle and difficulty also for simultaneously neighbouring entry purpose underground engineering construction.
2. the foundation ditch stream line belongs to temporary works, after pit backfill, has just lost use value, and wherein steel strand are embedded in the underground meaning that loses, if do not remove the waste that recycling will cause resource.
Summary of the invention
Goal of the invention:
The utility model provides a kind of prestress anchorage cable of detachable recovery, and its purpose is that this anchor cable that provides should be able to reach advantages such as anchor cable is convenient to be removed, and bearing capacity is high, and reliability is big.
Technical scheme:
A kind of prestress anchorage cable of detachable recovery is characterized in that: the front end at this anchor cable is provided with the pressure-bearing plectane, and a side of pressure-bearing plectane is provided with the pressure-bearing crooked semi-circular plate perpendicular with pressure-bearing plectane plane, and the crooked semi-circular plate of pressure-bearing is provided with groove; Two crooked semi-circular plates of the floor of putting more energy into, pressure-bearing plectane and pressure-bearing are connected fixing; The another side of pressure-bearing plectane is connected with the pressure disperser; Steel strand are the U type, and front end is arranged in the groove of the crooked semi-circular plate of pressure-bearing, and stage casing and rear are postponed in the side of whole anchor cable; The tail end of this anchor cable is provided with outer anchor system.
Waist at anchor cable is provided with the outside that the steel strand constrainer is bundled in steel strand, is connected with medium-height trestle on the pressure disperser, through the steel strand constrainer with to the cooperation of medium-height trestle, makes steel strand be the spindle structure.
The steel strand skin is smeared one deck grease, outermost looping plastics protection skin.
Be provided with slot around the pressure-bearing plectane, steel strand are arranged in the slot.
The beneficial effect of the utility model is:
Plurality of advantages such as it is reasonable to the utlity model has structure stress, and pressure is uniformly dispersed, and bearing capacity is high, and end anchorage is firm, is convenient to remove reclaim, with low cost.Particularly the design of pressure-bearing plectane, steel strand constrainer is the spindle structure with steel strand, makes anchor cable anchor pulling force all convert pressure into and affacts on the anchoring section cement-soil, makes prestress anchorage cable can bear very big pressure like this.
Description of drawings:
Figure one is the structural representation of the utility model;
Figure two is the structure for amplifying sketch map of figure one front end;
Figure three is the A-A sectional drawing of figure one;
Figure four is the B-B sectional drawing of figure two;
Figure five is the C-C sectional drawing of figure two.
Embodiment:
Numbering explanation among the figure: pressure-bearing plectane 1; The crooked semi-circular plate 2 of pressure-bearing; The floor 3 of putting more energy into; Steel strand 4; (pressure disperser 5; To medium-height trestle 6; Steel strand constrainer 7; Outer anchoring system 8.
Most preferred embodiment below in conjunction with description of drawings the utility model:
For convenient this technical goal of removing, the utility model adopts non-bending steel cable 4, and this kind steel strand 4 are smeared one deck grease at ordinary steel twisted wire skin, outermost looping plastics protection skin.These construction measures make steel strand be easy to separate in the anchor cable length range with the cement-soil anchoring body, lay down outer anchor system after anchor cable is finished using, and utilize dismounting equipment to hold steel strand one end, progressively remove whole steel strand.
For this technical goal of high-bearing capacity, the utility model passes through pressure-bearing plectane 1, pressure disperser 5, and structures such as spindle steel strand make anchor cable anchor pulling force all convert pressure into and affact on the anchoring section cement-soil.Through as above facility the pressure of conversion is evenly distributed within anchoring section, avoid the part stress concentration phenomenon to occur, cause the cement-soil compression damage, excessive deformation occurs.This end holds type pressure and disperses a type anchor cable design to make the anchoring body far-end earlier stressed, and near-end is stressed at last.Like this with traditional anchor cable receive force mode just in time opposite; Avoided traditional anchor cable near-end earlier stressed, potential slide mass in the free segment limit of compressing anchor cable produces excessive deformation on top, stretch-draw slope; The deep layer anchoring section does not play a role again fully simultaneously, causes danger and waste.What the anchoring section cement-soil of tradition anchor cable was born is the shearing force that steel strand apply, and the stress form that end holds type pressure dispersion type anchorage cable anchoring section cement-soil is a pressure, less 30% of the compressive strength that is about of the shear strength of cement-soil.End holds type pressure and disperses a type anchor cable can give full play to the big advantage of cement-soil anchoring body compressive strength; And the cement-soil anchoring body is positioned within the deep layer soil body, and earthing pressure is big on it, about all around beam intensity; Cement-soil is in the three dimension stress state; Improve the compressive strength of anchoring section cement-soil greatly, thereby can give full play to the anchoring section effect, improved the bearing capacity of anchor cable greatly.
For big this technical goal of reliability, the utility model utilizes the steel strand bending machine that steel strand 4 are made into the U type, and the end is wrapped in the groove of the crooked semi-circular plate of the pressure-bearing outside, and groove utilizes sealing outward, avoids steel strand to eject forward.After the bending with steel strand 4 firm colligations on pressure disperser 5; Also bundle at the anchoring section steel strand with steel strand constrainer 7; Thereby form a firm steel strand cage; Also to lay the colligation Grouting Pipe in steel strand cage inboard in addition, further strengthen the globality and the rigidity of steel strand cage.Can guarantee that so whole anchor cable makes at steel strand 4, lay behind the pore-forming that once grouting can keep stable by the steel strand cage during the secondary splitting grouting, members such as steel strand and pressure-bearing plectane are connected firmly, and are safe and reliable during stretch-draw.
If two bundle steel strand 4 can not meet design requirement, just can add a cover pressure-bearing plectane 1 in addition, the crooked semi-circular plate 2 of pressure-bearing, the floor 3 of putting more energy into, pressure dispersers 5 etc. are connected two cover systems.Analogize in proper order and can accomplish six bundles, eight bundle steel strand etc.
Claims (4)
1. detachable prestress anchorage cable that reclaims; It is characterized in that: the front end at this anchor cable is provided with pressure-bearing plectane (1); One side of pressure-bearing plectane (1) is provided with the pressure-bearing crooked semi-circular plate (2) perpendicular with pressure-bearing plectane (1) plane, and the crooked semi-circular plate of pressure-bearing (2) is provided with groove; Two floors of putting more energy into (3) are connected fixing with pressure-bearing plectane (1) with the crooked semi-circular plate of pressure-bearing (2); The another side of pressure-bearing plectane (1) is connected with pressure disperser (5); Steel strand (4) are the U type, and front end is arranged in the groove of the crooked semi-circular plate of pressure-bearing (2), and stage casing and rear are postponed in the side of whole anchor cable; The tail end of this anchor cable is provided with outer anchor system (8).
2. the prestress anchorage cable of a kind of detachable recovery according to claim 1; It is characterized in that: the waist at anchor cable is provided with the outside that steel strand constrainer (7) is bundled in steel strand (4); Be connected with on the pressure disperser (5) medium-height trestle (6); Through steel strand constrainer (7) with to the cooperation of medium-height trestle (6), make steel strand (4) be the spindle structure.
3. the prestress anchorage cable of a kind of detachable recovery according to claim 1, it is characterized in that: steel strand (4) skin is smeared one deck grease, outermost looping plastics protection skin.
4. the prestress anchorage cable of a kind of detachable recovery according to claim 1 is characterized in that: be provided with slot around the pressure-bearing plectane (1), steel strand (4) are arranged in the slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220101551 CN202595736U (en) | 2012-03-19 | 2012-03-19 | Detachable and recyclable pre-stress anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220101551 CN202595736U (en) | 2012-03-19 | 2012-03-19 | Detachable and recyclable pre-stress anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202595736U true CN202595736U (en) | 2012-12-12 |
Family
ID=47313286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220101551 Expired - Lifetime CN202595736U (en) | 2012-03-19 | 2012-03-19 | Detachable and recyclable pre-stress anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202595736U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206593A (en) * | 2020-01-20 | 2020-05-29 | 一山(北京)岩土工程有限公司 | Recoverable anchor rod and construction process and auxiliary device thereof |
| CN117345309A (en) * | 2023-12-05 | 2024-01-05 | 矿冶科技集团有限公司 | Shear-resistant prestress anchor cable |
-
2012
- 2012-03-19 CN CN 201220101551 patent/CN202595736U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206593A (en) * | 2020-01-20 | 2020-05-29 | 一山(北京)岩土工程有限公司 | Recoverable anchor rod and construction process and auxiliary device thereof |
| CN111206593B (en) * | 2020-01-20 | 2021-05-11 | 一山(北京)岩土工程有限公司 | Recoverable anchor rod and construction process thereof |
| CN117345309A (en) * | 2023-12-05 | 2024-01-05 | 矿冶科技集团有限公司 | Shear-resistant prestress anchor cable |
| CN117345309B (en) * | 2023-12-05 | 2024-02-20 | 矿冶科技集团有限公司 | Shear-resistant prestress anchor cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180607 Address after: 110032 No. 56-39 the Yellow River North Street, Huanggu District, Shenyang, Liaoning 604 Patentee after: Shenyang emperor platinum Building Engineering Co., Ltd. Address before: 110032 Yufeng Building, No. 42 Ning Shan Road, Huanggu District, Shenyang, Liaoning, 1-20-5 Co-patentee before: Sun Kang Patentee before: Yan Xiaotong |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
|
| CX01 | Expiry of patent term |