CN104120656B - Method for automatically controlling bridge high pier construction perpendicularity - Google Patents
Method for automatically controlling bridge high pier construction perpendicularity Download PDFInfo
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- CN104120656B CN104120656B CN201410368592.2A CN201410368592A CN104120656B CN 104120656 B CN104120656 B CN 104120656B CN 201410368592 A CN201410368592 A CN 201410368592A CN 104120656 B CN104120656 B CN 104120656B
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Abstract
本发明公开了一种桥梁高墩施工垂直度自动控制方法。使用垂准仪控制装置，在墩身一节混凝土浇筑完成后，检测成型后砼墩身偏位情况，安装激光垂准仪，并在下一模模板矫正时提供垂准线对模板进行精确矫正，如此往复作业控制，直到该墩柱施工完成。使用本发明方法进行桥梁高墩垂直度施工，通过激光垂准仪向上激光线与墩身平行原理，在顶端模板激光靶可以清晰直观观测模板偏位情况。因为有防护措施，在整个高墩施工工程中无需多次架设仪器，减少仪器操作误差，可以每天24小时进行观测，减少测量人员劳动强度和人员数量，同时保证了施工进度和墩身垂直度质量。
The invention discloses an automatic control method for verticality of bridge high pier construction. Using the plummet control device, after the concrete pouring of the first section of the pier body is completed, the deviation of the concrete pier body after forming is detected, the laser plummet is installed, and the vertical line is provided to accurately correct the formwork when the next formwork is corrected. Such reciprocating operation is controlled until the pier construction is completed. Using the method of the invention to carry out the verticality construction of the high pier of the bridge, through the principle that the upward laser line of the laser plummet is parallel to the pier body, the deviation of the formwork can be clearly and intuitively observed at the top formwork laser target. Because of the protective measures, there is no need to set up instruments multiple times in the entire high pier construction project, reducing instrument operation errors, and observations can be made 24 hours a day, reducing the labor intensity and number of surveyors, while ensuring the construction progress and the quality of the verticality of the pier body .
Description
Technical field
The present invention and a kind of method for bridge construction, especially a kind of Bridge High-pier construction perpendicularity autocontrol method.
Background technology
Traditional Bridge High-pier construction method mainly has overmolded, creeping formwork, sliding formwork, Support Method and the construction of up-to-date roller die etc.,
With highway and high-speed railway gradually to the continuous propulsion in mountain area, remote mountains area, particularly Tibet, Guizhou, Sichuan, Guangxi,
The area such as Yunnan, Chongqing execution conditions are more and more arduous, and geological conditions becomes increasingly complex, and these areas have to get through land
Upper economic development passage, thus brings many impacts to complex area bridge construction, and wherein one of importance is exactly
The impact that high pier construction is caused.High pier degree control is always survey crew and controls high one loaded down with trivial details work of pier, tradition
High pier degree control typically adopts messenger wire cone method, total powerstation observation method, traditional plumb aligner method.
Ceiling hammer method: the iron wire hanging of pier shaft central point or corner predetermined point is corresponded on work platformses and weighs 15～25kg
Plumb bob, iron wire is wound on little larry, with climbing, with unwrapping wire.By observing the deviation of plumb bob and central point or predetermined point, measure
Pier shaft off-centring and torsion degree.As strong wind weather, plumb bob ball can be placed in water or oil in waved although hanging with reducing
Method simple, intuitive bored by line, but current high pier is more than 60 meters mostly, have more than 100 meters because line cone is exposed to
In open country, typically in mountain valley or river valley, the higher wind-force of pier shaft is bigger for our high pier construction regions, and the impact to line cone is bigger,
Precision cannot ensure continuously to construct, and therefore this method is only suitable for low pier or householder methods control.
Total powerstation is observed: utilizes total powerstation, control point draws corresponding punctuate with template and measures according to set by ground, root
Calculate skew and the torsion at pier shaft center according to corresponding point drift condition in template, also in that mountain area high pier more and more higher, give
Survey crew brings heavy measuring task, needs survey crew to set up prism repeated measures, have during high pier model sheetinstallat debugging
Need several hours or more than ten hour when Shi Yinwei template deformation or other reason adjustment template, need measurement to put mirror personnel many
Secondary upper and lower pier shaft, and evening measurement observation difficulty is bigger, and therefore this method is only suitable for daytime or the other method precision of detection.
Traditional plumb aligner observation method: in the added frame of keeping a foothold of cushion cap, plumb aligner is installed, opens downward transmitting laser beam button,
Behind alignment position, accurate leveling plumb aligner closes downward firing button, opens transmitting laser beam button upwards, adjusts objective focal length,
Make laser beam that the luminous point of one diameter 1 mm to be formed on target, stand on top layer overmolded platform first, along mould from template angle
The extended line of plate inward flange draws ribbon, and a line of laser target central cross line is overlapped with the 50cm graduation mark of ribbon,
Help flat laser target, so that laser target plane and template top is in same level, with another ribbon measure laser spots away from
The distance of 50cm graduation mark simultaneously records.Measure the deviation of 4 points of pier shaft successively, establishing criteria judges 4 angle point planes of template
Whether position is qualified, if there being a point deviation to be above standard, needing to readjust template, reexamining.
Improvement with high pier construction technology and optimization, high pier construction progress is more and more faster, and traditional high pier construction entered in the past
Degree completes 0.6 1.0 meters daily, currently uses sliding formwork or roller die can complete 36 meters of construction speed daily, and need
Uninterrupted construction in daily 24 hours.
Owner requires construction speed more and more faster now, and each work surface is multiple high piers simultaneously in construction, survey substantially
Amount workload corresponding just bigger it is necessary to be equipped with enough survey crews could meet needs of constructing, and adjust and all exist during template
On daytime, survey crew will be observed several high piers simultaneously and control, and this brings extensive work amount data intractability to survey crew,
Sometimes easily cause deviation during explanation adjustment data, conventional approach cannot meet present construction method and construction speed.
Content of the invention
The perpendicularity autocontrol method it is an object of the invention to provide a kind of Bridge High-pier is constructed, applies for accelerating Bridge High-pier
Work progress, improves pier shaft perpendicularity quality, and creates profit margin for project.
The technical scheme that the present invention takes:
Using laser plummet, after the completion of pier shaft one section concreting, concrete pier shaft off normal situation after detection molding, peace
Dress laser plummet, and provide directrix of hanging down that template is accurately corrected when next mould template is corrected, and so on operation control
System, until the construction of this pier stud completes.
Concrete construction method step is as follows:
(1), reserve and install verticality control device when template producer processes high pier rack template: in the diagonal phase of template
Answer the cutting of plumb aligner laser target installation site or welding laser plummet laser target hole, when two-layer template or multilamellar template, want root
According to vertical principle reserving hole simultaneously, appear on the scene after template top layer is installed and received laser target；
(2), laser plummet transformation processing wireless remote controller；
(3), pre-buried during cushion cap casting concrete: pre-buried to concrete pier shaft relative position according to template laser target before pouring concrete
Laser plummet base, and base is to the outer pre-buried power pipe of cushion cap；
(4), use first: during general casting concrete first, laser plummet cannot be installed, first adopt traditional method control
System first section pier body formwork perpendicularity；
(5), pier shaft controls: installs laser plummet after template lifting first, installs preventer afterwards, debugs wireless remote control
System, detects pier shaft concrete off normal situation, projection plumb aligner laser vertical line to reception laser target, plane positioning during Control architecture lifting
Standard baseline, is receiving laser target off normal situation direct interpretation template off normal value according to laser, is adjusting and carry out to tram
Concrete placings, observe off normal change in casting process simultaneously, repeat template and rise, pour concrete working procedure up to design mark
High.
Advantages of the present invention:
Carry out Bridge High-pier perpendicularity construction using the inventive method, laser rays and pier shaft are put down upwards by laser plummet
Row principle, receiving laser target in top template can clear and intuitive observation template off normal situation.Because there being safeguard procedures, whole
Instrument need not repeatedly be set up in high pier construction engineering, reduce instrumentation error, can be observed for daily 24 hours, reduce and survey
Amount personnel labor intensity and personnel amount, ensure that construction speed and pier shaft perpendicularity quality simultaneously.
Brief description
Structure floor map under Fig. 1 present invention composition structure.
Structure floor map in Fig. 2 present invention composition structure.
Structure elevational schematic view in Fig. 3 present invention composition structure.
Shown in figure: 1. plumb aligner installation pedestal, 2. Cast-in-place concrete pier shaft, 3. plumb aligner laser vertical line, 4. high pier support mould
Plate, 5. plumb aligner laser target installation site, 6. receive laser target.
Specific embodiment
Concrete construction method step is as follows:
(1) laser plummet transformation processing wireless remote controller: after buying laser plummet, purchase wireless remote control mould
Block and alternating current power supply transducer, open laser plummet power pack, link to outside instrument with the electric cautery source of welding current, by wireless
Remote control reception plate control end is switched to alternating current power supply transducer, and wireless remote controlled receiver uses 12-volt dc power supply, by direct current
It is depressurized to 3 volts of the direct current of plumb aligner use.
(2) template processing unit (plant): pacified in laser plummet laser target according to template drawing when processing high pier rack template 4
Holding position 5 cuts or welds laser target installation passage, installs and receives laser target 6 in top layer template position.
(3) cushion cap pour pre-buried before concrete: in cushion cap assembling reinforcement and pre-buried pier shaft reinforcing bar, synchronous pre-buried laser plummet
Base screw, according to template laser target position accurately embedding laser plummet installation pedestal 1, laser plummet preventer according to
The pre-buried fixing reinforcing bar of protective cover, buries the supply of electric power pipeline to outside cushion cap for the position base.
(4) pier construction controls: after the completion of pier shaft first segment concreting, installs laser plummet in base screw
On, connect alternating current power supply, accurate leveling instrument, check that related device and laser spots are receiving laser target imaging contexts, all are no
Begin to use this device, projection plumb aligner laser vertical line 3 arrives and receives laser target 6, can be wireless at any time when construction needs after by mistake
Remote control is opened laser and is checked pier shaft off normal data, completes the construction of Cast-in-place concrete pier shaft 2 always.
Claims (1)
1. a kind of Bridge High-pier construction degree control method, is characterized in that: using laser plummet, save concrete in pier shaft one
After the completion of pouring, concrete pier shaft off normal situation after detection molding, laser plummet is installed, and provides when next mould template is corrected vertical
Directrix is accurately corrected to template, and so on Operation control, until the construction of this pier stud completes；
Concrete construction method step is as follows:
1.1st, reserve and install verticality control device when template producer processes high pier rack template (4): in the diagonal phase of template
Laser target installation site (5) cutting or welding laser plummet reception laser target hole, two-layer template stress be received by optical collimator
Or in template top layer, reception laser target (6) will be installed and appear on the scene afterwards according to vertical principle reserving hole simultaneously during multilamellar template；
1.2nd, laser plummet transformation processing wireless remote controller；
1.3rd, pre-buried during cushion cap casting concrete: before pouring concrete, laser target to be received according to template pre-buried to concrete pier shaft relative position
Laser plummet installation pedestal (1), and base is to the outer pre-buried power pipe of cushion cap；
1.4th, use first: during general casting concrete first, laser plummet cannot be installed, first adopt traditional method to control first
Section pier body formwork perpendicularity；
1.5th, pier shaft controls: installs laser plummet after template lifting first, installs preventer afterwards, debugs wireless remote control system
System, detects pier shaft concrete off normal situation, and projection laser plummet laser vertical line (3) is arrived and received laser target (6), during Control architecture lifting
Plane positioning standard baseline, is receiving laser target off normal situation direct interpretation template off normal value according to laser, is adjusting to correct position
Postpone and carry out concrete placings, casting process is observed off normal change simultaneously, repeat template and rising, pouring concrete working procedure until arriving
Designed elevation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410368592.2A CN104120656B (en) | 2014-07-30 | 2014-07-30 | Method for automatically controlling bridge high pier construction perpendicularity |
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| CN201410368592.2A CN104120656B (en) | 2014-07-30 | 2014-07-30 | Method for automatically controlling bridge high pier construction perpendicularity |
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| CN104120656A CN104120656A (en) | 2014-10-29 |
| CN104120656B true CN104120656B (en) | 2017-01-18 |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192769B (en) * | 2016-09-06 | 2018-04-20 | 中铁二十四局集团南昌铁路工程有限公司 | High pier slding form operation verticality control device and its application method |
| CN106639500B (en) * | 2016-12-22 | 2019-01-11 | 广西建工集团第一建筑工程有限责任公司 | Slding form operation method of square variable-section multilayer platform chimney under high wind pressure |
| CN107504962A (en) * | 2017-06-29 | 2017-12-22 | 中交航局第四工程有限公司 | A kind of method using laser plummet apparatus control bridge deck-molding pier stud perpendicularity |
| CN107328379A (en) * | 2017-08-18 | 2017-11-07 | 中国二十二冶集团有限公司 | Piping lane wall section size detecting method |
| CN108221706B (en) * | 2018-03-23 | 2023-04-14 | 中国五冶集团有限公司 | A double-limb thin-walled pier mold turning method template and its application method |
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| CN109373934A (en) * | 2018-11-28 | 2019-02-22 | 中国建筑第四工程局有限公司 | Super-high pier verticality measuring method |
| CN112227213B (en) * | 2020-10-16 | 2021-07-23 | 中国矿业大学 | A kind of prefabricated cover beam and column prefabricated assembly guide positioning method and guide frame |
| CN114032782B (en) * | 2021-12-02 | 2024-07-23 | 中铁一局集团有限公司 | Pier column reinforcement bar binding construction operation platform and method |
| CN115387221A (en) * | 2022-08-08 | 2022-11-25 | 中铁三局集团有限公司 | High pier line type control method for high altitude area |
| CN115538770A (en) * | 2022-10-12 | 2022-12-30 | 中交一公局集团有限公司 | A Construction Method of Roll Formwork for Controlling Perpendicularity |
| CN115613464A (en) * | 2022-10-28 | 2023-01-17 | 中铁二十三局集团第三工程有限公司 | Stakeout method of pier body used in slipform construction of high pier |
| CN115540823B (en) * | 2022-11-28 | 2023-03-10 | 中国水利水电第七工程局有限公司 | A method for measuring and controlling the verticality of super-high piers with variable cross-section |
| CN119416156B (en) * | 2024-10-31 | 2025-09-09 | 西安建筑科技大学 | High-precision measurement and control multi-element data fusion control method, unit and system for bridge pier |
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