CN107435331A - A kind of Bower Anchor ingot of arch bridge two sides - Google Patents
A kind of Bower Anchor ingot of arch bridge two sides Download PDFInfo
- Publication number
- CN107435331A CN107435331A CN201710816812.7A CN201710816812A CN107435331A CN 107435331 A CN107435331 A CN 107435331A CN 201710816812 A CN201710816812 A CN 201710816812A CN 107435331 A CN107435331 A CN 107435331A
- Authority
- CN
- China
- Prior art keywords
- anchoring pile
- arch bridge
- concrete piles
- bower anchor
- anchor ingot
- 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
- E02D5/80—Ground anchors
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
Abstract
The present invention discloses a kind of Bower Anchor ingot of arch bridge two sides,Including filling in the anchoring pile in middle weak weathered stratum,The surface of anchoring pile, which is set, is improved anchoring pile and ground cohesive force and the concrete piles of bearing capacity,Concrete piles are used and are disposably molded in anchoring pile continuous placing to give full play to earth resistance,The crater wall contact site of concrete piles and middle weak weathered stratum pours closely knit,The vertical component effect of anchoring pile is provided with the rail for preventing that cable wire from slipping,The side of anchoring pile is provided with the assembly pulley of connection cable means wind cable,Assembly pulley includes the first slip race,Second slides race,Assembly pulley connects that regulation wind cable is flexible two buckle and adjust tackle pulley by anchor ring,Can firmly it be embedded in middle moderately weathered rock,Give full play to the effect of earth resistance,Security performance is excellent,Improve the cohesive force of anchoring pile and ground and bear pressure,And ensure the resistance to plucking stability of stake,It is convenient for installing,It is novel in design,It is a kind of good innovation scheme.
Description
Technical field
The present invention relates to Arch Bridge Construction field, more particularly to the Bower Anchor ingot of arch bridge two sides.
Background technology
Develop with the swift and violent hair of highway in China construction, cross over mountain stream valley in mountain area, river, the bridge in river are numerous.It is more
Bridge and completes bridge due to can not be cast-in-place or considering the factor such as construction technology and cost using the method for prefabrication and lifting
The construction of agent structure, particularly Large-span Precast arch bridge it is assembled relatively conventional.
Hoisting with Cableway System is a kind of conventional and more ripe bridge member Lift-on/Lift-off System.Cable crane is mostly that both ends are consolidated at present
Fixed pattern, cable need to be fixed on Bower Anchor ingot, so as to being pulled during arch bridge assembly, the structure of Bower Anchor ingot particularly important,
If Bower Anchor ingot does not have fixed or position to be fitted without security incident when appropriately, easily causing operation, there is deficiency, no
Can meet the needs of social development.
In summary, for prior art the defects of, it is accordingly required in particular to a kind of Bower Anchor ingot of arch bridge two sides, to solve existing skill
The deficiency of art.
The content of the invention
For the deficiencies in the prior art, security incident is easily caused, the present invention proposes a kind of master of arch bridge two sides
Anchor ingot, it is novel in design, can firmly it be embedded in middle moderately weathered rock, it is ensured that the resistance to plucking stability of anchor ingot, solved existing
There is the defects of technology.
To achieve these goals, technical scheme is as follows：
A kind of Bower Anchor ingot of arch bridge two sides, including fill and be provided with the anchoring pile in middle weak weathered stratum, the surface of anchoring pile
Improve anchoring pile and ground cohesive force and the concrete piles of bearing capacity, concrete piles used to give full play to earth resistance disposably in
Anchoring pile continuous placing is molded, and the crater wall contact site of concrete piles and middle weak weathered stratum pours closely knit, and the vertical component effect of anchoring pile is provided with
The rail for preventing cable wire from slipping, the side of anchoring pile are provided with the assembly pulley of connection cable means wind cable, and assembly pulley includes first
Slide race, second slide race, assembly pulley connects that regulation wind cable is flexible two buckle and adjust tackle pulley by anchor ring.
C35 concretes are used in concrete piles of the present invention, the dosage of the concrete piles on anchoring pile surface is 50.4 cubic metres.
Further, the bearing capacity of the substrate of described anchoring pile and side wall is more than 0.3MPa.
Further, the distance of described rail and anchoring pile bottom is 45cm, and rail uses 38Kg/m rail.
It is arc-shaped in the of the present invention first slip race, the second shape for sliding race.
Further, a diameter of 32cm of described anchor ring.
The reinforcement to play the role of fastening is provided with the side of rail of the present invention, the shape of reinforcement is T-shaped.
Further, the length of described anchoring pile is 700cm.
The beneficial effects of the invention are as follows：It is simple in construction, it can firmly be embedded in middle moderately weathered rock, give full play to soil
The effect of drag, security performance is excellent, improves the cohesive force of anchoring pile and ground and bears pressure, and ensures the resistance to plucking stability of stake,
It is convenient for installing, it is novel in design, it is a kind of good innovation scheme.
Brief description of the drawings
Describe the present invention in detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the side structure schematic diagram of the present invention；
Fig. 2 is the planar structure schematic diagram of the present invention.
100- anchoring piles in figure, weak weathered stratum in 110-, 120- assembly pulleys, 121- first slide race, and 122- second is slided
Driving wheel groove, 130- rail, 140- anchor rings.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Referring to Fig. 1, Fig. 2, a kind of Bower Anchor ingot of arch bridge two sides, including fill in the anchoring pile in middle weak weathered stratum 110
100, the surface of anchoring pile 100, which is set, is improved anchoring pile 100 and ground cohesive force and the concrete piles of bearing capacity, and concrete piles are in order to fill
Distribution waves earth resistance and uses and be disposably molded in anchoring pile continuous placing, and concrete piles contact with the crater wall of middle weak weathered stratum 110
Portion pour it is closely knit, the vertical component effect of anchoring pile 100 be provided with prevent cable wire slip rail 130, the side of anchoring pile 100 is provided with connection
The assembly pulley 120 of cable means wind cable, assembly pulley 120 include the first slip race 121, second and slide race 122, assembly pulley
120 connect that regulation wind cable is flexible two buckle and adjust tackle pulley by anchor ring 140.
In addition, concrete piles use C35 concretes, the dosage of the concrete piles on the surface of anchoring pile 100 is 50.4 cubic metres.The substrate of anchoring pile
It is more than 0.3MPa with the bearing capacity of side wall.The distance of rail 130 and the bottom of anchoring pile 100 is 45cm, and rail 130 uses 38Kg/m steel
Rail.First shape for sliding the slip race 122 of race 121, second is arc-shaped.A diameter of 32cm of anchor ring 140.Rail
130 side is provided with the reinforcement to play the role of fastening, and the shape of reinforcement is T-shaped.The length of anchoring pile 100 is 700cm.
During anchoring pile should be embedded in (weak) weathered rock formation, it is desirable to which substrate and side wall bearing capacity are not less than 0.3MPa (if basis is held
Carrying power can not meet to require, designer should be notified to make design modification in time)；Single 50.4 cubic metres of Bower Anchor heavy stone used as an anchor C35 concretes dosage.
Anchoring pile concrete piles disposably continuous placing must finish；In order to give full play to the effect of earth resistance, concrete connects with crater wall
Contact portion point should fully pour closely knit, to improve the cohesive force of anchoring pile and ground and bearing capacity, and ensure the resistance to plucking stability of stake.
To prevent cable wire from slipping, a pre-buried 38Kg/m rail at away from anchor bottom 45cm.
During excavation of foundation pit, anchorage rope pulling force effect direction is paid attention to, supporting plate should be located at leading edge (leaning on river direction).
The construction method of skewback is：
Skewback basis uses Open-cut Foundation, and because cranny development is relatively abundant at bridge site, design is forbidden using large-scale
Explosion means, in order to avoid the stabilization of disturbed strata itself.Therefore use the method for small pit goaf presplit blasting to be excavated, it is aided with excavator
Carry out excavation construction.And set and cut on the outside of foundation ditch, ditch, it is ensured that draining is unimpeded, ensures construction safety.Repair a fortune in foundation ditch side
Defeated sidewalk, the transport cubic metre of earth and stone to spoil ground.
Before excavation of foundation pit, foundation ditch plan-position and present ground elevation are measured, just excavated after declaration.To keep away
Exempt from the destruction larger to natural landscape, excavation of foundation pit side slope is unsuitable too slow, and strictly the side slope of side slope 0.3~0.5 is applied by drawing
Edge-to-edge's slope supporting is dug on work, side, it is ensured that stability of slope safety.
1st, drainage of foundation pit
Intercepting ditch is set in foundation ditch top of the slope side before excavation of foundation pit.During excavation of foundation pit to designed elevation, draining is laid in bottom
Ditch, prevent that immersion causes base bearing capacity to reduce to rainy pit water accumulation for a long time in construction.
2nd, foundation ditch rock excavation
Top of the slope crag is removed before construction and excavates the surface vegetation of scope, is carried out repetition measurement, setting-out, is performed intercepting water outside side slope
Ditch, complete the construction of transport sidewalk.
The cubic meter of stone uses cut and cover tunneling, from top to bottom layering, partial excavation.
(1) rock excavation method
Excavation uses 1.0m3Backacter and 8 air compressor machine constructions, are transported the cubic metre of earth and stone by slag releasing channel by dump truck
To spoil ground.When excavation of foundation pit is within from design basal surface 30cm, the excavation of remaining rock stratum is carried out using air compressor machine machine, is equipped with
Pneumatic pick manual amendment basal surface tooth bank and side slope.
(2) rock blasting method
In excavation, when running into high basement rock intensity and mechanical equivalent of light excavation difficulty, opened using the method for small pit goaf presplit blasting
Dig, away from that in the range of substrate 1.0m the method for explosion must not be used to excavate, to ensure the integrality of substrate rock stratum and intensity.It can use
Following blasting scheme：
1) blasting method：Using stage excavation from top to bottom, every layer of shoulder height is about 5m, using medium-length hole blasting.
2) protection of side slope：Cushion is reserved during explosion, using presplitting and photoface exploision.
3) blasting technique designs：Blasting-technical parameters are empirically chosen with code requirement, and explosive payload is finally by testing
Big gun is chosen, adjusts, finally determines its reasonable dose.
(3) points for attention
1) will be in strict accordance with the accurate setting-out of the physical dimension of skewback and position when skewback excavates；
2) whether skewback should be verified accurately after excavating rock fracture or landslide phenomenon below skewback bottom surface, pinpointing the problems should
Contact, resolve through consultation with designing unit in time；
3) skewback bottom surface should be complete fresh scar, should be cleaned up before concrete placings, it is ensured that concrete is combined reliably with basement rock.
Skewback concrete construction：
Skewback concrete construction key issue be：Temperature Controlling of Mass Concrete, prevent harmful cracks；Pre-buried interim hinge is applied
Work precision controlling；Using scientific and reasonable temperature control scheme, cooling water pipe is laid in rationally layering, it is ensured that skewback mass concrete
Quality；Reasonable selection positioning process and advanced measurement and positioning means ensure the precision of built-in fitting；From finishing template system,
Optimize concrete proportioning, appearance looks elegant.
Skewback concrete is C30 concretes.Concrete mixing plant centralized production, chute put in storage, and internal vibration rod vibrates.Skewback
Concrete project amount is larger, and built-in fitting position installation accuracy requires high at arch springing, and arch springing inclined-plane size Control is strict, using dividing platform
Rank, segmented construction.Arch springing inclined-plane template is spliced using steel form.
Main arch rib arrangement and method for construction summation：
Bridge main arch is reinforced concrete ribbed arch, and ribbed arch construction use is cast-in-place, can not because arch bridge headroom is big compared with high and span
Using Full space support construction.Constructed with reference to my company the experience of similar bridge, using the assembled steel construction bow member under arch rib
Construction method is constructed.Specific method is：Steel arch-shelf section, which is lifted, using the CABLEWAY ERECTION SYSTEM for being located at two sides carries out assembly,
And absolute altitude is adjusted, lay the lumps of wood, installation form, cast-in-place arch rib in assembled good steel arch-shelf.
Sarasota and tower foundation：
After king-tower is located at abutment, gate-type pylon is combined into using universal rod body, king-tower elevation is by bridge elevation and main rope sag
Control, and ensure certain safe space, so as to the construction of spandrel construction.Pylon dissipates spelling and formed at the scene, and universal rod body is used
30kN or 50kN hoist engine handlings, protection network is set during assembled, it is ensured that high-altitude working safety.Pylon assembly stage and installation
After completion, also waist, top guy should be set in appropriate location around, and lead to according to the height and stressing conditions of pylon
These guys adjustment pylon perpendicularity is crossed, and ensures the stability of pylon, guy is fixed in main earth anchor with wire cable anchor before and after pylon
On pre-buried ring, pylon side guy is anchored on the crosswind cable earth anchor of pylon two.
Conscientiously various universal rod body gusset plates, patch bolt etc. are tested before pylon installation, prevent the bar of damage
Part is used on pylon, and installation should be carried out strictly by design, and bolt will be tightened enough as in design quantity, after pylon installation,
Also pylon is gone through again one time, the bolt in leakage will be filled, and the bolt not tightened will tighten, and in hoisting process
In inspected periodically, after the completion of withdraw interim wind cable, and adjust with permanent guy that pylon is vertical, and guy uses steel wire rope, with
The connection of pylon earth anchor is solid and reliable, to ensure the stability of pylon in use.Set 1 big roller straight in cable saddle
Footpath is that 400mm places the steel wire ropes of 1 main push-towing rope Φ 56, sets 8 trundles, diameter 350mm, places the lifting of 2 hauling rope 2
Rope, 4 knotted ropes.All hauling ropes enter hoist engine at rear anchor by rear anchor reversed pulley.All hoisting ropes are after bottom of towe is swung to
Into the hoist engine being positioned on the bank.I-steel is placed between cable saddle and universal rod body crossbeam and makees distribution beam and skid beam, I-steel
With rod member firm welding, to prevent cable saddle from toppling, cable saddle back-off enters I-steel, and sets haulage cable to tower in Sarasota both sides
Bottom hoist engine is in order to adjusting saddle's position.Cable saddle installation sets Simple gin-pole using in tower top, and block part is lifted with 5t hoist engines
It is assembled after to tower top.
Main rope uses 2-1 φ 56mm steel wire ropes, and main rope passes through the cable saddle being positioned on king-tower top, and left and right sides is each on tower top
If one group of Hoisting Cableway.Main rope passes through the Mobile type cable saddle being positioned on main tower top and is anchored on the earth anchor of two sides, and span is
140m, sag are 10m (L/14), and lift heavy ability 150kN, tackling system is by 2 80KN hoist engines, hoist engine earth anchor, φ
21.5mm steel wire ropes and 2 200KN sport cars system compositions, trailer system is by φ 24mm steel wire ropes, 2 80KN hoist engines and main rope
Sport car forms.
The erection installation of funicular system：
Funicular system is in Sarasota installation and adjusts perpendicularity, pylon installation check, by starting to set up afterwards.From
One on the bank main earth anchor start, set interim hauling rope through two king-tower upper frames, hauling rope uses φ 19.5mm steel wire ropes, with interim
Track cable is drawn and crosses an overhead by hauling rope, then allows track cable to pass through sport car, while installs hauling rope and hoisting rope, is pressed
Regulation is by straw line, hoisting rope and sport car, lower hanging sleeve around track cable then was drawn into bank.Cross two overheads and race is installed again
Car system, through opposite bank overhead and enter earth anchor.Track cable is tightened up and anchored by defined erection sag, hauling rope and
Hoisting rope enters hoist engine after installing.It is after one group of erection of main cable installation and then another set of to install with this set main rope
Main rope.
Before cable installation, close inspection its abrasion, fracture of wire situation are answered, is unsatisfactory for firmly making using the steel wire rope of standard
With, while the security of cable saddle, sport car, lower extension, hoist engine etc. is conscientiously checked, ensure its safe operation.Steel wire rope end
The connection at end or anchoring process are correct, ensure that its is solid and reliable., should be tight by professional quality inspection personnel after funicular system installation
Lattice check the reliability and security of each part, and main rope, the sag of working cable will meet the requirements, can formally be transported after acceptance(check)
OK.
The beneficial effects of the invention are as follows：It is simple in construction, it can firmly be embedded in middle moderately weathered rock, give full play to soil
The effect of drag, security performance is excellent, improves the cohesive force of anchoring pile and ground and bears pressure, and ensures the resistance to plucking stability of stake,
It is convenient for installing, it is novel in design, it is a kind of good innovation scheme.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, it is of the invention without departing from the spirit and scope of the present invention also to have respectively
Kind changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by
Appended claims and its equivalent define.
Claims (8)
1. a kind of Bower Anchor ingot of arch bridge two sides, including fill in the anchoring pile in middle weak weathered stratum, it is characterised in that：The table of anchoring pile
Face sets the concrete piles for being improved anchoring pile and ground cohesive force and bearing capacity, and concrete piles use to give full play to earth resistance
Disposably be molded in anchoring pile continuous placing, the crater wall contact site of concrete piles and middle weak weathered stratum pour it is closely knit, anchoring pile it is vertical
Portion is provided with the rail for preventing that cable wire from slipping, and the side of anchoring pile is provided with the assembly pulley of connection cable means wind cable, assembly pulley bag
Race is slided containing first, second slides race, and assembly pulley connects that regulation wind cable is flexible two buckle and adjust tackle pulley by anchor ring.
A kind of 2. Bower Anchor ingot of arch bridge two sides according to claim 1, it is characterised in that：Described concrete piles use C35 concretes,
The dosage of the concrete piles on anchoring pile surface is 50.4 cubic metres.
A kind of 3. Bower Anchor ingot of arch bridge two sides according to claim 1, it is characterised in that：The substrate and side wall of described anchoring pile
Bearing capacity be more than 0.3MPa.
A kind of 4. Bower Anchor ingot of arch bridge two sides according to claim 1, it is characterised in that：Described rail and anchoring pile bottom
Distance is 45cm, and rail uses 38Kg/m rail.
A kind of 5. Bower Anchor ingot of arch bridge two sides according to claim 1, it is characterised in that：Described first slides race, the
Two shapes for sliding race are arc-shaped.
A kind of 6. Bower Anchor ingot of arch bridge two sides according to claim 1, it is characterised in that：Described anchor ring it is a diameter of
32cm。
A kind of 7. Bower Anchor ingot of arch bridge two sides according to claim 1, it is characterised in that：The side of described rail is provided with
The reinforcement to play the role of fastening, the shape of reinforcement are T-shaped.
A kind of 8. Bower Anchor ingot of arch bridge two sides according to claim 1, it is characterised in that：The length of described anchoring pile is
700cm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710816812.7A CN107435331A (en) | 2017-09-12 | 2017-09-12 | A kind of Bower Anchor ingot of arch bridge two sides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710816812.7A CN107435331A (en) | 2017-09-12 | 2017-09-12 | A kind of Bower Anchor ingot of arch bridge two sides |
Publications (1)
| Publication Number | Publication Date |
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| CN107435331A true CN107435331A (en) | 2017-12-05 |
Family
ID=60462102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710816812.7A Pending CN107435331A (en) | 2017-09-12 | 2017-09-12 | A kind of Bower Anchor ingot of arch bridge two sides |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944162A (en) * | 2019-03-11 | 2019-06-28 | 中铁五局集团有限公司 | A kind of Combined light anchorage and construction method for large-tonnage Hoisting with Cableway System |
| CN113356036A (en) * | 2021-04-23 | 2021-09-07 | 中铁大桥局集团第五工程有限公司 | Cable tower foundation structure combined with bridge abutment and construction method thereof |
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| CN101864737A (en) * | 2010-06-11 | 2010-10-20 | 中铁大桥局集团有限公司 | Secondary vertical rotating construction method for arch rib of long-span steel arch bridge |
| CN102020206A (en) * | 2010-12-17 | 2011-04-20 | 长江水利委员会长江勘测规划设计研究院 | Ropeway transport system of long-span steep terrain wind power device |
| CN202187287U (en) * | 2011-07-30 | 2012-04-11 | 四川省交通运输厅公路规划勘察设计研究院 | Small-medium span suspension bridge anchorage structure under weak geological conditions |
| CN205634685U (en) * | 2016-03-29 | 2016-10-12 | 中建钢构江苏有限公司 | Cable crane hoist |
| CN107059617A (en) * | 2016-12-24 | 2017-08-18 | 中铁十八局集团有限公司 | A kind of interim anchorage of combined type |
| CN207685825U (en) * | 2017-09-12 | 2018-08-03 | 重庆交通建设(集团)有限责任公司 | A kind of Bower Anchor ingot of arch bridge two sides |
-
2017
- 2017-09-12 CN CN201710816812.7A patent/CN107435331A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864737A (en) * | 2010-06-11 | 2010-10-20 | 中铁大桥局集团有限公司 | Secondary vertical rotating construction method for arch rib of long-span steel arch bridge |
| CN102020206A (en) * | 2010-12-17 | 2011-04-20 | 长江水利委员会长江勘测规划设计研究院 | Ropeway transport system of long-span steep terrain wind power device |
| CN202187287U (en) * | 2011-07-30 | 2012-04-11 | 四川省交通运输厅公路规划勘察设计研究院 | Small-medium span suspension bridge anchorage structure under weak geological conditions |
| CN205634685U (en) * | 2016-03-29 | 2016-10-12 | 中建钢构江苏有限公司 | Cable crane hoist |
| CN107059617A (en) * | 2016-12-24 | 2017-08-18 | 中铁十八局集团有限公司 | A kind of interim anchorage of combined type |
| CN207685825U (en) * | 2017-09-12 | 2018-08-03 | 重庆交通建设(集团)有限责任公司 | A kind of Bower Anchor ingot of arch bridge two sides |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944162A (en) * | 2019-03-11 | 2019-06-28 | 中铁五局集团有限公司 | A kind of Combined light anchorage and construction method for large-tonnage Hoisting with Cableway System |
| CN113356036A (en) * | 2021-04-23 | 2021-09-07 | 中铁大桥局集团第五工程有限公司 | Cable tower foundation structure combined with bridge abutment and construction method thereof |
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Application publication date: 20171205 |