CN203429632U - Tension force and pressure dispersed type anchor cable - Google Patents
Tension force and pressure dispersed type anchor cable Download PDFInfo
- Publication number
- CN203429632U CN203429632U CN201320513166.4U CN201320513166U CN203429632U CN 203429632 U CN203429632 U CN 203429632U CN 201320513166 U CN201320513166 U CN 201320513166U CN 203429632 U CN203429632 U CN 203429632U
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- Prior art keywords
- anchor cable
- tension force
- pressure
- dispersed type
- tension
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 238000004873 anchoring Methods 0.000 claims abstract description 34
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 11
- 239000011435 rock Substances 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 7
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 239000011083 cement mortar Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 230000002421 anti-septic effect Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- -1 simple in structure Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a tension force and pressure dispersed type anchor cable. The tension force and pressure dispersed type anchor cable comprises an inner anchoring section, a free section and an outer anchoring section, wherein more than two bearing bodies which allow unbonded steel strands to be anchored are arranged in the axial direction of an anchor cable body of the inner anchoring section, and the steel strands, along the two ends of the axis of the anchor cable body, of the bearing bodies are stripped to be polished steel strands. Tension force and pressure are simultaneously transmitted to a stable stratum or soil mass anchoring system, the tension force is exerted on different sections of the inner steel strands of the anchoring sections, the pressure is exerted on a bearing plate, an anchoring body and a hole wall are bonded together under the action of the tension force and the pressure, force is most evenly exerted on the inner anchoring section of the tension force and pressure dispersed type anchor cable, the advantages of a tension force dispersed type anchor cable and the advantages of a pressure dispersed type anchor cable are integrated, and the tension force and pressure dispersed type anchor cable can provide larger and reliable anchoring force in weak rock mass of a complex foundation compared with other types of anchor cables. Conventional anchor cables are further optimized, and compared with the conventional anchor cables, the tension force and pressure dispersed type anchor cable has the advantages that the aperture can be reduced, the steel strands are saved, work efficiency is improved, the structure is reasonable, before plastic slipping happens to the anchor cable, the extraction resistance of the tension force and pressure dispersed type anchor cable is increased by 57% compared with that of the tension force dispersed type anchor cable and increased by 21.5% compared with that of the pressure dispersed type anchor cable, and the tension force and pressure dispersed type anchor cable is more reasonable and more economical in supporting and protection engineering and is generally suitable for engineering construction such as foundation pit excavation and slope support under complex conditions.
Description
Technical field
The utility model relates to a kind of slope retaining field of construction work, particularly a kind of tension and compression dispersed anchor cable.
Background technology
In the high slope supporting of ground matter, deep foundation pit excavation project, according to traditional Anchorage Technology, traditional tension type anchor pole (anchor cable) is used in a large number, and these anchor cables are when obtaining obvious regulation effect, also a little less than having brought antiseptic power, the defect such as supporting capacity is low.Particularly, due to the inadequate problem of the tension type anchor cable durability causing easy to crack, day by day become the long-term secret worry that ground calamity is administered engineering.
Therefore, need a kind of novel anchor cable, have antiseptic power stronger, supporting capacity is higher; The stronger characteristic of its durability particularly can provide than the larger and anchored force reliably of other types anchor cable in the soft rock mass of complex foundation.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of tension and compression dispersed anchor cable, has antiseptic power stronger, and supporting capacity is higher; The stronger characteristic of its durability particularly can provide than the larger and anchored force reliably of other types anchor cable in the soft rock mass of complex foundation.
Tension and compression dispersed anchor cable of the present utility model, comprise interior anchor section and free segment and outer anchor section, along the anchor cable body axis direction of described interior anchor section, be provided with the plural supporting body of anchoring non-bending steel cable, described supporting body is peeled off as plain bar twisted wire along the steel strand at anchor cable body axis two ends;
Further, through the non-bending steel cable number on each supporting body not etc., and on each supporting body, be respectively arranged with the through hole passing for non-bending steel cable and the Grouting Pipe of extending through the inside anchor section of supporting body end;
Further, described supporting body comprise the limiting plate of loaded plate and relatively loaded plate setting and be arranged at loaded plate and limiting plate between P type anchoring body;
Further, described loaded plate is that bolt is fixedly connected with limiting plate;
Further, described loaded plate and limiting plate are steel plate, and described loaded plate thickness is greater than limiting plate setting;
Further, described loaded plate thickness is 30mm-40mm, and the thickness of described limiting plate is 5mm-10mm;
Further, described supporting body is 3;
Further, described P type anchoring body is extruding anchor;
Further, described interior anchor section end is provided with guiding cap, between described guiding cap and supporting body and adjacent supporting body, is provided with stringing ring.
The beneficial effects of the utility model: tension and compression dispersed anchor cable of the present utility model, by pulling force and pressure are delivered to stable rock stratum or the anchoring system of the soil body simultaneously, in anchoring section, steel strand segmentation is subject to pulling force, loaded plate is stressed, act on anchoring body and hole wall bonding, in tension and compression dispersed anchor cable structure, anchoring section is stressed the most even, it has concentrated pulling force to disperse and pressure disperses the advantage of anchor cable in one, can provide than the larger and reliable anchored force of other types anchor cable in the soft rock mass of complex foundation; Further optimized conventional anchor cable, by contrast can reduced bore, save steel strand, improve work efficiency, rational in infrastructure, its with regard to plastic flow before, its resistance to plucking ability improves 57% compared with tension type anchor cable, compared with pressure-type anchor cable, improve 21.5%, make it more reasonable in support engineering, more economical, be generally applicable to the engineering constructions such as excavation of foundation pit, slope retaining of complex condition.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A place enlarged drawing;
Fig. 3 is 1-1 profile;
Fig. 4 is 2-2 profile;
Fig. 5 is 3-3 profile;
Fig. 6 be between tension dispersed anchor cable cement mortar body and hole wall shear stress along interior anchoring section distribution of lengths state;
Fig. 7 be between pressure dispersing anchorage cable cement mortar body and hole wall shear stress along interior anchoring section distribution of lengths state;
Fig. 8 be between tension and compression dispersed anchor cable cement mortar body and hole wall shear stress along interior anchoring section distribution of lengths state.
The specific embodiment
Fig. 1 is structural representation of the present utility model; Fig. 2 is A place enlarged drawing; Fig. 3 is 1-1 profile; Fig. 4 is 2-2 profile; Fig. 5 is 3-3 profile; Fig. 6 be between tension dispersed anchor cable cement mortar body and hole wall shear stress along interior anchoring section distribution of lengths state; Fig. 7 be between pressure dispersing anchorage cable cement mortar body and hole wall shear stress along interior anchoring section distribution of lengths state; Fig. 8 be between tension and compression dispersed anchor cable cement mortar body and hole wall shear stress along interior anchoring section distribution of lengths state, as shown in the figure: tension and compression dispersed anchor cable of the present utility model, comprise interior anchor section and free segment and outer anchor section, along anchor cable body 1 axis direction of described interior anchor section, be provided with the plural supporting body 2 of anchoring non-bending steel cable, described supporting body 2 is peeled off as plain bar twisted wire along the steel strand at anchor cable body axis two ends; Non-bending steel cable bearing tension, plain bar twisted wire has been bonding steel strand and has born fractional load, and slurry is subject to pulling force, and supporting body 2 passes to slurry by the load of another part with the form of compressive stress, slurry acts on rock mass, in the mode of shear stress as shown in Figure 8.
In the present embodiment, through the non-bending steel cable number on each supporting body not etc., and on each supporting body, be respectively arranged with the through hole that passes for non-bending steel cable and through the Grouting Pipe 4 of the inside anchor section end extension of supporting body 2; Grouting Pipe 4 is for pouring into slurry, simple in structure, and steel strand force dispersion is even.
In the present embodiment, described supporting body 2 comprise loaded plate 21 and limiting plate 22 that relatively loaded plate 21 arranges and be arranged at loaded plate 21 and limiting plate 22 between P type anchoring body 23; Limiting plate 22 is oppositely arranged along anchor cable body 1 axis direction with loaded plate 21, and loaded plate 21 is converted into pressure by pulling force, makes in structure anchoring section stressed the most even,, anchored force is more effective, durable; Limiting plate 22 plays the role of positioning for the plain bar twisted wire to through loaded plate 21, makes whole supporting body 2 structures more firm, strengthens the bearing strength of supporting body 2; P type anchoring body 23 extruding steel strand are loaded plate 21 fixedly, has guaranteed anchorage cable anchoring section receive strength rationality.
In the present embodiment, described loaded plate 21 is with limiting plate 22 for bolt is fixedly connected with, and simple in structure, fastness is strong.In the present embodiment, described loaded plate 21 and limiting plate 22 are steel plate, and described loaded plate 21 thickness are greater than limiting plate 22 and arrange; Because loaded plate 21 is converted into pressure by pulling force, make the interior anchoring section of structure stressed the most even, strengthen the bearing strength of loaded plate 21, extend the application life of loaded plate 21, improve on the whole anchoring fastness and the durability of anchor cable, and concentrated pulling force disperses and pressure disperses the advantage of anchor cable in one, in the soft rock mass of complex foundation, can provide than the larger and reliable anchored force of other types anchor cable.
In the present embodiment, being preferably described loaded plate 21 thickness is 30mm-40mm, and the thickness of described limiting plate 22 is 5mm-10mm.
In the present embodiment, described supporting body 2 is 3; Make the stressed material of evenly saving again of anchoring section.
In the present embodiment, described P type anchoring body 23 is extruding anchor.
In the present embodiment, described interior anchor section end is provided with guiding cap 5, between described guiding cap 5 and supporting body 2 and adjacent supporting body, is provided with stringing ring 3.
Tension and compression dispersed anchor cable technique of the present utility model: anchor cable pore-forming → anchor cable body establishment (comprising steel wire, the extruding of P anchor, loaded plate making, colligation, guiding cap installation) → grouting → anchor pier making → tensioning fixation → anchor head sealing.Generally include anchor cable body by steel strand, grouting body, P anchor, loaded plate, guiding cap, stringing ring, isolating frame and the connector that may use and auxiliary material etc.
1, anchor cable construction location
The axis providing according to working drawing positions.Before construction by survey crew according to design drawing inspection check anchor cable point and absolute altitude, confirm after accurate to construct, and fill on request < < engineering location survey and record > >.
2, pore-forming drill is in place
Rig is laid must be steadily firmly, and initial alignment must accurately be appraised and decided through engineers and technicians, and rig is in place, measures after inclination angle conforms to design and just can spud in.
3, drilling construction
Anchor cable pore-forming adopts down-the-hole impact holing, in the easy collapse hole such as broken or soft and bit freezing bury drills bottom, adopt pulp canal drill to enter technology, boring requirement drilled dry, unsuitable water bores, with the adhesive property of guaranteeing that anchor cable construction is unlikely to worsen the engineering geological conditions of slope rock mass and guarantees hole wall.In drilling process, find deviation, correct immediately, hole complete, then carry out once full hole deviational survey.
4, clear hole
Inner hole deposition slag utilizes water in conjunction with high-pressure blast, and sediment is gone out.At the bottom of high-pressure air hose water pipe is sent into hole, boiling water is blown, and the negative pressure of utilizing high pressure flowing water to form at the bottom of hole, stirs sediment at the bottom of hole and flow out with water, before anchor cable is installed, drilling orifice is stopped up and is protected.
5, loaded plate, P anchor and anchor cable system are done
Anchor cable is made strict with designing requirement making.Anchor cable system is done to need first steel strand to be pressed design length and is adopted Abrasive cutting off machine blanking, then carries out the extruding of P anchor by designing requirement location, after installation loaded plate, assembles again.Anchor cable assembling should be assembled by design drawing, guarantees that grouting pipe is unimpeded, and steel hinge line should be straight, and colligation is firm, and made anchor cable numbering is listed.
The orifice throat length of steel wire=member (comprising rib post, anchor pier)+work anchor thickness+jack length+moveable anchor thickness+length surplus capacity (generally getting 0.1m)
While adopting non-bending steel cable, stretch-draw section steel strand should first press cutting length peeling washing oil, guarantee on steel strand without oil film existence, when guaranteeing stretch-draw without slippage and with sealing off and covering anchorage concrete binding.
6, transfer anchor cable body
Anchor cable is tackled boring before installing and is made one-time detection, in order to avoid collapse piece or foreign matters from being blocked boring, more corresponding anchor cable is numbered and is installed one to one with boring.
7, slip casting and anchor pier pedestal are built
Before anchoring section grouting, the inspection of ventilating of reply stop grouting plug, the grouting of inner anchor section pipe stretch-draw section, just can be in the milk.
Anchor rope grouting slurries will stir, and with stirring with use, and are finished before initial set.Need to guarantee that slurry is closely knit, saturated, intensity should reach designing requirement, treat that aperture overflows underflow clearly and can stop slip casting.
The pressure-bearing surface of anchor pier should be smooth, and vertical with anchor cable axis direction.
8, anchorage cable stretching locking
When reaching designing requirement, 80% and the support unit intensity that stretch-draw reaches design strength in anchorage mortar intensity just can carry out.During stretch-draw, by designing requirement pressurization step by step, make steel hinge line stressed evenly, finally reach the locking load of designing requirement, tensioning fixation is after 48 hours, if find loss of prestress value be greater than design load 10% time compensate stretch-draw.
9, sealing off and covering anchorage head
Stretch-draw reaches after designing requirement, with Abrasive cutting off machine, cuts away the unnecessary presstressed reinforcing steel of stretching end, and the protruded length of presstressed reinforcing steel should not be less than 0.3m, by design drawing and requirement for anticorrosion, carries out anchor head sealing.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (9)
1. a tension and compression dispersed anchor cable, it is characterized in that: comprise interior anchor section and free segment and outer anchor section, along anchor cable body (1) axis direction of described interior anchor section, be provided with the plural supporting body (2) of anchoring non-bending steel cable, described supporting body (2) is peeled off as plain bar twisted wire along the steel strand at anchor cable body (1) axis two ends.
2. tension and compression dispersed anchor cable according to claim 1, it is characterized in that: through the non-bending steel cable number on each supporting body not etc., and on each supporting body, be respectively arranged with the through hole that passes for non-bending steel cable and through supporting body (1) Grouting Pipe (4) that inwardly anchor section end extends.
3. tension and compression dispersed anchor cable according to claim 2, is characterized in that: described supporting body (1) comprise loaded plate (21) and loaded plate (21) arranges relatively limiting plate (22) and be arranged at loaded plate (21) and limiting plate (22) between P type anchoring body (23).
4. tension and compression dispersed anchor cable according to claim 3, is characterized in that: described loaded plate (21) and limiting plate (22) are fixedly connected with for bolt.
5. tension and compression dispersed anchor cable according to claim 4, is characterized in that: described loaded plate (21) and limiting plate (22) are steel plate, and described loaded plate (21) thickness is greater than limiting plate (22) setting.
6. tension and compression dispersed anchor cable according to claim 5, is characterized in that: described loaded plate (21) thickness is 30mm-40mm, and the thickness of described limiting plate (22) is 5mm-10mm.
7. tension and compression dispersed anchor cable according to claim 6, is characterized in that: described supporting body (2) is 3.
8. according to tension and compression dispersed anchor cable according to claim 7, it is characterized in that: described P type anchoring body (23) is extruding anchor.
9. tension and compression dispersed anchor cable according to claim 8, is characterized in that: described interior anchor section end is provided with guiding cap (5), between described guiding cap (5) and supporting body (2) and adjacent supporting body, is provided with stringing ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513166.4U CN203429632U (en) | 2013-08-21 | 2013-08-21 | Tension force and pressure dispersed type anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513166.4U CN203429632U (en) | 2013-08-21 | 2013-08-21 | Tension force and pressure dispersed type anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203429632U true CN203429632U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320513166.4U Expired - Fee Related CN203429632U (en) | 2013-08-21 | 2013-08-21 | Tension force and pressure dispersed type anchor cable |
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| CN (1) | CN203429632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065624A (en) * | 2016-07-12 | 2016-11-02 | 浙江省交通工程建设集团有限公司 | It is applicable to pass through the permanent seal cooling prestress anchorage cable of broken rock and construction method thereof |
| CN106917411A (en) * | 2017-03-16 | 2017-07-04 | 广州市建誉科技有限责任公司 | Locking anchor cable structure and its construction method are anchored outside tension and compression complementary type |
-
2013
- 2013-08-21 CN CN201320513166.4U patent/CN203429632U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065624A (en) * | 2016-07-12 | 2016-11-02 | 浙江省交通工程建设集团有限公司 | It is applicable to pass through the permanent seal cooling prestress anchorage cable of broken rock and construction method thereof |
| CN106917411A (en) * | 2017-03-16 | 2017-07-04 | 广州市建誉科技有限责任公司 | Locking anchor cable structure and its construction method are anchored outside tension and compression complementary type |
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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: 20140212 |