CN105926472A - Construction method for widening bridge based on water jet milling and concrete removing robot - Google Patents
Construction method for widening bridge based on water jet milling and concrete removing robot Download PDFInfo
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- CN105926472A CN105926472A CN201610528034.7A CN201610528034A CN105926472A CN 105926472 A CN105926472 A CN 105926472A CN 201610528034 A CN201610528034 A CN 201610528034A CN 105926472 A CN105926472 A CN 105926472A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention discloses a construction method for widening a bridge based on a water jet milling and concrete removing robot. The construction is carried out according to the following steps of (1) making preparations for widening the bridge, putting thewater jet milling and concrete removing robot at an exploding initial position, properly placing an arm of the water jet milling and concrete removing robot, and adjusting an angle of a spray gun; (2) modulating the pressure intensityof a high pressure water pump, operating the water jet milling and concrete removing robot to explode concretes of an old bridge; (3) sweeping concrete residues of the exploded old bridge, and strengthening and welding reserved reinforcing steel bars of a new bridge and exposed reinforcing steel bars of the old bridge; (4) spraying water on cracks between the new bridge and the old bridge through a water transporting vehicle, and casting the concretes after thoroughly wetting; (5)dismantling a formwork on the bottom face of the bridge, and handling the final finishing work. In short, the construction method for widening the bridge based on the water jet milling and concrete removing robot provided by the invention is beneficial to preventing an old bridge structure from being destroyed for the second time, preventing the reinforcing steel bars in the old bridge from being destroyed, and avoiding reducing the bearing capability of the widened new bridge, and has the advantages of long service life and short construction time.
Description
Technical field
The invention belongs to road and science of bridge building field, relate to one based on water milling except bridge is widened by concrete robot
Construction method.
Background technology
In the last few years, along with China's rapid development of economy, China's communication had had significant progress.But, due to
Personnel and goods and materials flowing are day by day frequent, cause the surge of transport need.Bridge occupies larger specific gravity in Modern High-Speed highway,
There is technical sophistication plus bridge widening, implement the feature that difficulty is high, big to existing traffic impact, therefore bridge widening has designed
Become the emphasis of Expressway Extension Project.But existing technical merit, either uses artificial pneumatic pick or excavator to join
Hydraulic hammer, all can damage xoncrete structure, cracks and destroy the layout of reinforcing bar, not only can not meet design and wants
Ask, bring hidden danger also can to follow-up construction.Use rope saw cut, related for concrete reinforcing bar together can be cut away, stay neat
The surface of a wound, unfavorable to the bonding of concrete, it is necessary to dabbing.At present, the method for attachment of general new and old bridge is the wet connection of bar planting, i.e. exists
The bar planting of Jiu Qiao side, welds with the reserved steel bar of new bridge side, then casting concrete.The operating procedure of bar planting is: boring-clear
Hole-injecting glue-rotation joint bar.Each processing step is both needed to be accomplished manually, and automaticity is low.The main component of anchoring adhesive is asphalt mixtures modified by epoxy resin
Fat, the most certain is ageing, and fragility is big, by variable crisp after outer force-disturbance, affects adhesive property.Though bar planting method can expire
The Functional Requirement that foot is certain, but also have the biggest deficiency.There is provided in the face of this phenomenon a kind of efficiently, old bridge will not be tied
Be configured to destroy, the reinforcing bar within old bridge will not be damaged, will not reduce the bearing capacity of the new bridge after widening and
Service life, the construction method widened bridge except concrete robot based on water milling of length was particularly important.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, and provide a kind of efficiently, will not be to old bridge structure
Damage, the reinforcing bar within old bridge will not be damaged, the bearing capacity of the new bridge after widening will not be reduced and make
By the construction method except concrete robot, bridge widened based on water milling of life-span length.
The object of the present invention is achieved like this: (1) preparation of construction: carries out bridge widening preparation, according to circumstances wants
Ask the old bridge floor of SD except concrete position, high-pressure pump water pipe be installed on water milling except on concrete robotic spray gun, high-pressure hydraulic pump another
End cross current waterr transporting vehicle, then water milling is abolished original position except the concrete robot old bridge of placement, set water milling except concrete machine
Human arm orientation, adjusts angle of gun；
(2) modulation joint high-pressure hydraulic pump pressure, operation water milling removes concrete robot and abolishes old bridge concrete by water under high pressure, until old
Bridge concrete erosion desired depth and exposed reinforcement length；
(3) clean the concrete residue that old bridge is abolished except concrete robot through water milling, check old bridge to abolish the degree of depth of bridge floor
With the length of exposed reinforcement, after new bridge reserved steel bar is carried out increasing muscle with old bridge exposed reinforcement weld, qualified through checking
After, template is set up in the bottom of new bridge and old bridge；
(4) by waterr transporting vehicle, the crack between new bridge and old bridge is carried out water and spray operation, treat that thoroughly moistening after-pouring mixes
Solidifying soil, is tamped concrete by vibrating head afterwards, finally carries out the bridge at new concrete perfusion between new bridge and old bridge
Face reinforces and maintenance work.
(5) after maintenance work terminates, the template of bridge bottom surface is removed, process last housekeeping.
In described step (1), water milling removes concrete robot arm and can adjust scope of activities all around, on arm
Spray gun can adjust angle, the bridge deck concrete of old bridge is abolished the width specified with deep by operation water milling except concrete robot
Degree, to complete to abolish requirement.
In described step (3) when new bridge reserved steel bar is carried out reinforcement welding with old bridge exposed reinforcement, will be new
Increase reinforcement welding in new bridge reserved steel bar and the side of old bridge exposed reinforcement.
In described step (3) when new bridge reserved steel bar is carried out reinforcement welding with old bridge exposed reinforcement, will be new
Increase reinforcement welding in new bridge reserved steel bar and the bottom surface of old bridge exposed reinforcement.
In described step (3) when new bridge reserved steel bar is carried out reinforcement welding with old bridge exposed reinforcement, will be new
Increase reinforcement welding on new bridge reserved steel bar and old bridge exposed reinforcement.
The beneficial effect comprise that: use and pontic is not produced secondary destruction, do not reduce bearing capacity, reliably connect
The design principle connect, is reserved with reserved steel bar, and uses water milling except concrete robot is to old bridge when constructing new bridge
Except the method for concrete abolishes the concrete of old bridge side, water milling is arranged with the angle of spray gun except the orientation of the arm of concrete robot
Needing the rational position except concrete, water milling is just held except concrete robot on the longitudinal direction of the old bridge removing concrete on request
Continuous work except concrete, and the bearing capacity of the exposed reinforcement of the old bridge having removed concrete, more traditional bar planting method will not be reduced
Automaticity is high, efficiency is high, service life is long, leaves exposed reinforcement, by the reserved steel bar of new bridge after removing concrete
Be connected by newly-increased reinforcement welding with the exposed reinforcement of old bridge, eliminate tendon-planted craft and the inspection of plant anchor power, more without
Must carry out the secondary cleaning of the surface of a wound, the bar planting method that the result of generation is more traditional is obvious, and water milling does not hinder reinforcing bar except concrete robot except concrete,
Will not crack extension, new bridge and old bridge carry out concrete again by newly-increased bar connecting reserved steel bar and exposed reinforcement
Pour and become an overall structure, Long-Time Service that can be safe and reliable.
In a word, the present invention has and avoids old bridge structure to wreck, avoids the reinforcing bar within old bridge to damage, keep away
Exempt to reduce the bearing capacity of the new bridge after widening, there is service life long, the advantage that efficiency of construction is high.
Accompanying drawing explanation
Fig. 1 is the newly-increased reinforcing bar of the present invention front view in side.
Fig. 2 is the newly-increased reinforcing bar of the present invention top view in side.
Fig. 3 is the newly-increased reinforcing bar of the present invention front view in bottom surface.
Fig. 4 is the newly-increased reinforcing bar of the present invention top view in bottom surface.
Fig. 5 is the newly-increased reinforcing bar front view up of the present invention.
Fig. 6 is the newly-increased reinforcing bar top view up of the present invention.
In figure: 1, old bridge 2, exposed reinforcement 3, new bridge 4, reserved steel bar 5, newly-increased reinforcing bar.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the invention are described in detail.
Embodiment
As shown in figures 1 to 6, a kind of construction method bridge widened except concrete robot based on water milling, its construction according to
Following steps are carried out:
(1) preparation of construction: carry out bridge widening preparation, removes the foreign material on former bridge floor, carries out construction operation scope and protects logical
Work, according to construction road present situation, measures and indicates transition region, alert zone, operation area and leading line, deployment instrument and carrying out
Construction lofting.According to circumstances require that high-pressure pump water pipe, except concrete position, is installed on water milling except concrete robot by SD old bridge Bridge 1 face
On spray gun, high-pressure hydraulic pump other end cross current waterr transporting vehicle, then water milling is abolished start bit except the concrete robot old bridge 1 of placement
Put, set water milling and remove concrete robot arm orientation, adjust angle of gun.
(2) modulation high-pressure hydraulic pump pressure, operation water milling abolishes old bridge 1 concrete by water under high pressure, directly except concrete robot
To old bridge 1 concrete erosion desired depth and exposed reinforcement 2 length；
Water milling can adjust scope of activities all around except concrete robot arm, and the spray gun on arm can adjust angle, logical
Cross water milling except the left and right, up and down and the regulation of angle of spray gun of concrete robot so that it is meet the width to old bridge and the degree of depth
Except concrete requirement, easy to adjust, only just can need to carry out except concrete operation to water milling except concrete robot manipulation after having regulated.To water milling
After completing except the azimuth arm of concrete robot and the regulation of angle of gun, the Pressure Exponent of the water of adjusting high-pressure pump, water milling removes concrete
Robot can utilize High-Pressure Water to carry out except concrete works, by operation water milling except concrete robot is by the bridge floor of old bridge on request
The width and the degree of depth specified abolished by concrete, the concrete of old bridge carries out hit erosion and the steel that arranges in leaving old bridge
Muscle.
(3) clean the concrete residue that old bridge 1 is abolished except concrete robot through water milling, check old bridge 1 to abolish bridge floor
The degree of depth and the length of exposed reinforcement 2, after new bridge reserved steel bar 4 is carried out increasing muscle with old bridge exposed reinforcement 2 weld, process
After the assay was approved, template is set up in the bottom of new bridge 3 and old bridge 1；
Utilize water milling to eliminate tendon-planted craft and the detection of plant anchor power except concrete, more need not carry out the after-treatment of the surface of a wound, water
The steel construction of old bridge thoroughly and will not be damaged by milling except concrete, will not crack extension, do not result in reinforcing bar bending and
Torsional deflection, will not reduce the intensity of reinforcing bar, utilizes water milling except concrete robot manipulating task, and operating efficiency is high, reduce workmen, fall
Low construction cost, minimizing even stop the generation of accident.When welding the newly-increased reinforcing bar of exposed reinforcement and reserved steel bar, can be by new
Increase steel-bar arrangement exposed reinforcement and the side of reserved steel bar or bottom surface or above, connected mode is flexible, convenient construction personnel's
Welding job.
(4) by waterr transporting vehicle, the crack between new bridge 3 and old bridge 1 is carried out water and spray operation, after the most moistening
Casting concrete, is tamped concrete by vibrating head afterwards, the crack between new bridge and old bridge carries out water and sprays work
Industry, strengthens new bridge and the old bridge cementitiousness to concrete, and new bridge and old bridge are connected as one by casting concrete
Individual entirety, overall structure stability is strong, and it is firm to connect, and stiffness and strength is big.Finally carry out and newly fill between new bridge 3 and old bridge 1
Deck Consolidation at note concrete and maintenance work.
(5) after maintenance work terminates, the template of bridge bottom surface is removed, process last round-off work, remove bridge floor
Roadblock, keeps bridge floor the coast is clear.
In a word, the present invention have avoid old bridge structure suffer secondary destroy, avoid the reinforcing bar within old bridge is caused
Destroy, avoid reducing the bearing capacity of the new bridge after widening, the advantage with length in service life.
Embodiment of above is the preferred embodiment for the present invention, under the premise without departing from the principles of the invention, it is also possible to
Making suitably change and modify, these changes and modification also should be regarded as protection scope of the present invention.
Claims (5)
1. the construction method except concrete robot, bridge widened based on water milling, it is characterised in that its construction is according to such as
Lower step is carried out:
(1) preparation of construction: carry out bridge widening preparation, according to circumstances requires that the old bridge floor of SD removes concrete position, by height
Press pump water pipe is installed on water milling and removes on concrete robotic spray gun, high-pressure hydraulic pump other end cross current waterr transporting vehicle, then water milling is removed
Concrete robot is positioned over old bridge and abolishes original position, sets water milling and removes concrete robot arm orientation, adjusts angle of gun；
(2) modulation joint high-pressure hydraulic pump pressure, operation water milling removes concrete robot and abolishes old bridge concrete by water under high pressure, until old
Bridge concrete erosion desired depth and exposed reinforcement length；
(3) clean the concrete residue that old bridge is abolished except concrete robot through water milling, check old bridge to abolish the degree of depth of bridge floor
With the length of exposed reinforcement, after new bridge reserved steel bar is carried out increasing muscle with old bridge exposed reinforcement weld, qualified through checking
After, template is set up in the bottom of new bridge and old bridge；
(4) by waterr transporting vehicle, the crack between new bridge and old bridge is carried out water and spray operation, treat that thoroughly moistening after-pouring mixes
Solidifying soil, is tamped concrete by vibrating head afterwards, finally carries out the bridge at new concrete perfusion between new bridge and old bridge
Face reinforces and maintenance work；
(5) after maintenance work terminates, the template of bridge bottom surface is removed, process last round-off work.
A kind of construction method widened bridge except concrete robot based on water milling the most according to claim 1, it is special
Levying and be, in described step (1), water milling removes concrete robot arm and can adjust scope of activities all around, the spray on arm
Rifle can adjust angle, the bridge deck concrete of old bridge is abolished the width specified with deep by operation water milling except concrete robot
Degree, to complete to abolish requirement.
A kind of construction method widened bridge except concrete robot based on water milling the most according to claim 1, it is special
Levy and be, in described step (3) when new bridge reserved steel bar is carried out reinforcement welding with old bridge exposed reinforcement, will be newly-increased
Reinforcement welding is in new bridge reserved steel bar and the side of old bridge exposed reinforcement.
A kind of construction method widened bridge except concrete robot based on water milling the most according to claim 1, it is special
Levy and be, in described step (3) when new bridge reserved steel bar is carried out reinforcement welding with old bridge exposed reinforcement, will be newly-increased
Reinforcement welding is in new bridge reserved steel bar and the bottom surface of old bridge exposed reinforcement.
A kind of construction method widened bridge except concrete robot based on water milling the most according to claim 1, it is special
Levy and be, in described step (3) when new bridge reserved steel bar is carried out reinforcement welding with old bridge exposed reinforcement, will be newly-increased
Reinforcement welding is on new bridge reserved steel bar and old bridge exposed reinforcement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510972868.2A CN105603886A (en) | 2015-12-23 | 2015-12-23 | Construction method for widening bridge on basis of water-milling concrete removal robot |
| CN2015109728682 | 2015-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105926472A true CN105926472A (en) | 2016-09-07 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510972868.2A Pending CN105603886A (en) | 2015-12-23 | 2015-12-23 | Construction method for widening bridge on basis of water-milling concrete removal robot |
| CN201610528034.7A Pending CN105926472A (en) | 2015-12-23 | 2016-07-07 | Construction method for widening bridge based on water jet milling and concrete removing robot |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510972868.2A Pending CN105603886A (en) | 2015-12-23 | 2015-12-23 | Construction method for widening bridge on basis of water-milling concrete removal robot |
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| CN (2) | CN105603886A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603887B (en) * | 2015-12-23 | 2017-03-29 | 河南伯淼水处理有限公司 | Water milling removes concrete robot |
| CN110804956B (en) * | 2019-09-26 | 2021-10-01 | 中国一冶集团有限公司 | Construction method for replacing special-shaped curve steel box girder support |
Citations (6)
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| CN101054854A (en) * | 2007-04-30 | 2007-10-17 | 中铁大桥局集团第二工程有限公司 | Construction method of quick roughening of concrete |
| JP4310444B1 (en) * | 2008-11-17 | 2009-08-12 | ショーボンド建設株式会社 | Width expansion material for road bridges |
| CN104389274A (en) * | 2014-11-15 | 2015-03-04 | 北京市政路桥股份有限公司 | Joist steel diaphragm for connecting old bridge with new bridge in bridge widening |
| CN104562943A (en) * | 2014-12-31 | 2015-04-29 | 上海建工一建集团有限公司 | Formwork support system of ultrahigh reinforced concrete box girder structure and erection method of formwork support system |
| CN104631348A (en) * | 2015-02-03 | 2015-05-20 | 东南大学 | Transversely-widening splicing structure of three-dimensional prestress concrete continuous box girder bridge |
| CN204780640U (en) * | 2015-06-02 | 2015-11-18 | 江苏广吴建设园林有限公司 | Old bridge is widened and is keepd on stand and new bent cap connection structure |
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2015
- 2015-12-23 CN CN201510972868.2A patent/CN105603886A/en active Pending
-
2016
- 2016-07-07 CN CN201610528034.7A patent/CN105926472A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| CN101054854A (en) * | 2007-04-30 | 2007-10-17 | 中铁大桥局集团第二工程有限公司 | Construction method of quick roughening of concrete |
| JP4310444B1 (en) * | 2008-11-17 | 2009-08-12 | ショーボンド建設株式会社 | Width expansion material for road bridges |
| CN104389274A (en) * | 2014-11-15 | 2015-03-04 | 北京市政路桥股份有限公司 | Joist steel diaphragm for connecting old bridge with new bridge in bridge widening |
| CN104562943A (en) * | 2014-12-31 | 2015-04-29 | 上海建工一建集团有限公司 | Formwork support system of ultrahigh reinforced concrete box girder structure and erection method of formwork support system |
| CN104631348A (en) * | 2015-02-03 | 2015-05-20 | 东南大学 | Transversely-widening splicing structure of three-dimensional prestress concrete continuous box girder bridge |
| CN204780640U (en) * | 2015-06-02 | 2015-11-18 | 江苏广吴建设园林有限公司 | Old bridge is widened and is keepd on stand and new bent cap connection structure |
Non-Patent Citations (2)
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| 杨光值等: "高压水射流技术在某高速公路桥梁拓宽改造工程中的应用", 《施工技术》 * |
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| CN105603886A (en) | 2016-05-25 |
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Application publication date: 20160907 |