CN101748799B - Hydraulic lifting rollover construction method of chimney reinforced concrete shaft wall - Google Patents

Hydraulic lifting rollover construction method of chimney reinforced concrete shaft wall Download PDF

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Publication number
CN101748799B
CN101748799B CN2009102277056A CN200910227705A CN101748799B CN 101748799 B CN101748799 B CN 101748799B CN 2009102277056 A CN2009102277056 A CN 2009102277056A CN 200910227705 A CN200910227705 A CN 200910227705A CN 101748799 B CN101748799 B CN 101748799B
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China
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construction
platform
hydraulic
lifting
chimney
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CN2009102277056A
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Chinese (zh)
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CN101748799A (en
Inventor
白由林
苏莉维
王锦启
侯建令
谢新福
王昌领
吕蕾莹
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河南四建股份有限公司
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Priority to CN2009102277056A priority Critical patent/CN101748799B/en
Publication of CN101748799A publication Critical patent/CN101748799A/en
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Abstract

The invention relates to a hydraulic lifting rollover construction method of a chimney reinforced concrete shaft wall, which is mainly characterized in that hydraulic lifting is adopted to lift an operating platform system, but a chimney shaft wall construction template system adopts a rollover construction process; a supporting rod is penetrated through the center of a hydraulic jack; under the action of the periodical hydraulic power, the hydraulic jack climbs along the supporting rod to drive the operating platform and rise along with a raising derrick, whereas inner and outer suspension brackets which are fixedly connected together with the radial beam of the operating platform system are adopted to install the template system; and three layers of suspension brackets are arranged below the radial beam at intervals of every 1.8m, and scaffold boards and fine mesh nets are overspreaded on the three layers of suspension brackets. Compared with the traditional prior art, the construction method not only has the advantages of the prior art, but also high construction speed and convenient operation, economical and practical, it can effectively ensure the construction engineering quality and construction safety and can save construction expenditures and lower construction cost.

Description

Chimney reinforced concrete barrel hydraulic pressure lift over-form construction method
Technical field
The present invention relates to a kind of job practices of chimney reinforced concrete barrel, chimney reinforced concrete barrel hydraulic pressure lift over-form construction method particularly, it is applicable to the construction of chimney reinforced concrete barrel.
Background technology
Usually, the conventional construction method that the construction of chimney reinforced concrete barrel is adopted comprises no derrick hydraulic slip-form method and the dislocation template that runs derrick, though wherein there is not the easy construction of derrick hydraulic slip-form method, handling safety, but precision prescribed height to the per pass activity time, otherwise, the easy drawing crack of concrete; Though and the dislocation template that runs derrick can make concrete quality be guaranteed easily, labour's input amount is bigger, poor stability.
Summary of the invention
The object of the present invention is to provide a kind of chimney reinforced concrete barrel hydraulic pressure lift over-form construction method, it can overcome the deficiency of prior art, when improving construction speed effectively, and workmanship and construction safety can be guaranteed effectively, construction cost can also be reduced.
Its solution is: what chimney of the present invention promoted the operation platform system employing is hydraulic pressure lift, and what barrel construction formwork system adopted is over-form construction technology.Its technological principle is: promote the hydraulic jack center perforating branches strut in the operation platform system, under the hydraulic power effect of periodic, hydraulic jack is climbed along described support bar, and the drive operation platform system reaches and rises with the gug frame.And the inside and outside suspension bracket that is fixed together with the radiation beam that promotes in the operation platform system is adopted in installing of template system, and this suspension bracket is downward from the radiation beam, and every 1.8m one deck, is completely spread scaffold floor and Dense mesh screen by totally three layers.
Its concrete job practices comprises following processing step; At first above the chimney shaft at absolute altitude 3m place, promote the assembling of operation platform system, this lifting operation platform system comprises operation platform system, hydraulic lifting system and vertical transit system, its assembling sequence is: the assembling → laser alignment of the assembling → vertical transit system of the assembling → hydraulic lifting system of operation platform system → examination; After the lifting operation platform system that will assemble then rises to a regulation construction height, carry out assembling reinforcement, install template, laser alignment contracture and examination, then carry out concreting.In the regular hour, will promote operating platform again and rise to a regulation construction height, so go round and begin again carry out assembling reinforcement, install template, the concrete tube wall over-form construction technologies such as lifting of laser alignment contracture, examination, concreting, operating platform.When chimney shaft is constructed to the 90m height, according to the construction requirement of chimney shaft, need promote the repacking of operation platform system midway, to adapt to the construction of follow-up chimney shaft.Continue described over-form construction operation again,, brush the dismounting of navigation mark lacquer and lifting operating platform at last until the construction of finishing whole chimney shafts.
Described operation platform system is assembled by drum circle, radiation beam, inside and outside ring beam, push-and-pull rod, platform bed board, guard rail.Described hydraulic lifting system is assembled by hydraulic jack, support bar, hydraulic control panel, oil pipe line, branch oil pump, needle valve.Described vertical transit system is by assembling with gug frame, lifting driving lever, dragline, cage, hoist engine and concrete hopper.Described template system by inner and outer template comprise fixing with contracture template, enclosure, hang scaffold, the path transfer device assembles, and the path transfer device comprises that gaily decorated basket nut, Φ 10 wire rope, dop and screw rod form.
The present invention adopts technique scheme, adopt hydraulic pressure lift owing to promote operation platform system, utilize hydraulic jack center perforating branches strut, under the hydraulic power effect of periodic, hydraulic jack is climbed along support bar, the drive operation platform system reaches and rises with the gug frame, can make lifting process steady, safe and reliable, can improve construction quality and working security effectively.Because the chimney wall template system adopts over-form construction technology, and template external mold employing set shaped steel formwork, can construct continuously, can accelerate speed of application effectively, reduce labour intensity, can reduce expenses 13.5 ten thousand yuan through measuring and calculating, reduce construction cost.Job practices of the present invention is compared with the dislocation template that runs derrick with traditional no derrick hydraulic slip-form method, the advantage that not only has the two, but also it is fast, easy and simple to handle, economic and practical to have a speed of application, can guarantee the characteristics of construction works quality and construction safety effectively.
The specific embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with embodiment.
Be that 235m is an example now with chimney reinforced concrete barrel height, its technological process is: basis → cylinder base → backfill, Laser room → carrying out the assembling → assembling reinforcement of executing → promote operation platform system of 3m high concrete stack shell on the basis, installing the lifting that template is carried out over-form construction, concreting, lifting operation platform system is set, the construction → midway (90~100 meters) that repeats that so goes round and begins again promotes the dismounting of operation platform system repacking → continuation over-form construction to 235m → brush navigation mark lacquer → lifting operating platform.
Specific implementation method is as follows:
1, the construction on chimney shaft basis: make cylinder base, place backfill, the correction position indicator that at the cylinder base center position Laser room is set, is provided with in by Laser room, the deviation that at any time chimney shaft is occurred in work progress are handled, and carry out the high chimney shaft construction of 3m simultaneously on the basis of chimney shaft.
2, above the chimney shaft at absolute altitude 3m place, promote the assembling of operation platform system, it at first is the assembly operation plateform system, this operation platform system is designed to suspended-cable structure, its diameter is 29.5m, it is by diameter and the high drum circle that is 3.0m, be the radial main spoke beam of 20 couple that is connected with the drum circle, be connected with the primary radiation beam and be 20 pairs of collateral radiation beams of alternate layout by inside and outside ring beam with the primary radiation beam, with major and minor radiation beam and the push-and-pull rod that the drum circle is connected, the auxilliary plate of platform and the guard rail that are laid on the major and minor radiation beam constitute.Next is that hydraulic lifting system is installed.Above mounted operation platform system, hydraulic lifting system is installed, it is by 8 groups of hydraulic jack that are connected along operating platform outer circumference and with the radiation beam, every group of 5 hydraulic jack, totally 40 hydraulic jack, described hydraulic jack is a 6t punching hydraulic jack, in 40 punching hydraulic jack, penetrate corresponding support bar respectively, the master is passed in the lower end of this support bar, the collateral radiation beam is also imbedded in the concrete of chimney wall, no longer transfer to, and hydraulic jack is respectively through separator, oil pipe line, needle valve is communicated with hydraulic control panel, and oil pipe line is arranged by branch shape and constituted.The rousing on the circle of center position of operating platform vertical transit system is installed again, it is by constituting with gug frame, lifting driving lever, dragline, cage, hoist engine and concrete bin of being connected with the drum circle.After the assembling that promotes operation platform system is finished, undertaken checking and accepting after centering handles by the correction position indicator in the Laser room.
3, mounted lifting operation platform system is constructed about 6 meters behind the height, carry out the assembling of template system.The inside and outside suspension bracket that the major and minor radiation beam that installs employing and operation platform system of this template system is fixed together, this suspension bracket is downward from described radiation beam, every 1.8m one deck, totally three layers, completely spread scaffold floor and Dense mesh screen, and carry out path transfer by described path transfer device, to guarantee the stable of template system.And construction formwork adopts typing punching block and contracture wooden model to consist of the wooden gang form of the steel with contracture function, and the contracture wooden model utilizes the minute surface large form in proportion and girth, be evenly distributed between the punching block along the chimney shaft circumference.Utilize the position indicator of rectifying a deviation in the Laser room to carry out laser alignment contracture, examination then, concreting again, then will promote operating platform and promote a template height, so go round and begin again carry out assembling reinforcement, install template, laser alignment contracture, examination, concreting, the over-form construction operation of the lifting of operating platform.
4, when chimney shaft is constructed to the 90m height, according to the construction requirement of chimney shaft, promote the repacking of operating platform midway, to satisfy the construction of follow-up chimney shaft.
5, finish the repacking that promotes operating platform midway after, continue repeating step 3 described assembling reinforcements, installing template, laser alignment contracture, examination, concreting, promote the lifting job practices of operating platform,, brush the navigation mark lacquer at last, reach the dismounting that promotes operating platform to 235m until the construction height of finishing chimney shaft.

Claims (1)

1. chimney reinforced concrete barrel hydraulic pressure lift over-form construction method, what it is characterized in that the employing of chimney lifting operation platform system is hydraulic pressure lift, what barrel construction formwork system adopted is over-form construction technology, its technological principle is: promote the hydraulic jack center perforating branches strut in the operation platform system, under the hydraulic power effect of periodic, hydraulic jack is climbed along described support bar, the drive operation platform system reaches and rises with the gug frame, and the inside and outside suspension bracket that is fixed together with the radiation beam that promotes in the operation platform system is adopted in installing of template system, this suspension bracket is downward from the radiation beam, every 1.8m one deck, totally three layers, completely spread scaffold floor and Dense mesh screen;
Its concrete job practices comprises following processing step: at first promote the assembling of operation platform system above the chimney shaft at absolute altitude 3m place, this lifting operation platform system comprises operation platform system, hydraulic lifting system and vertical transit system, its assembling sequence is: the assembling → laser alignment of the assembling → vertical transit system of the assembling → hydraulic lifting system of operation platform system → examination; After the lifting operation platform system that will assemble then rises to a regulation construction height, carry out assembling reinforcement, install template, laser alignment contracture and examination, then carry out concreting, in official hour, will promote operating platform again and rise to a regulation construction height, that so goes round and begins again carries out assembling reinforcement, install template, the laser alignment contracture, check and accept, concreting, the concrete tube wall over-form construction technology that operating platform promotes, construction requirement according to chimney shaft, promote the repacking of operation platform system midway, to adapt to the construction of follow-up chimney shaft, continue described over-form construction technology again, until the construction of finishing whole chimney shafts, brush the dismounting of navigation mark lacquer and lifting operating platform at last;
Described operation platform system is assembled by drum circle, radiation beam, inside and outside ring beam, push-and-pull rod, platform bed board, guard rail; Described hydraulic lifting system is assembled by hydraulic jack, support bar, hydraulic control panel, oil pipe line, branch oil pump, needle valve; Described vertical transit system is by assembling with gug frame, lifting driving lever, dragline, cage, hoist engine and concrete hopper; Described template system by inner and outer template comprise fixing with contracture template, enclosure, hang scaffold, the path transfer device assembles, and the path transfer device is made up of gaily decorated basket nut, Φ 10 wire rope, dop and screw rod.
CN2009102277056A 2009-12-30 2009-12-30 Hydraulic lifting rollover construction method of chimney reinforced concrete shaft wall CN101748799B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009102277056A CN101748799B (en) 2009-12-30 2009-12-30 Hydraulic lifting rollover construction method of chimney reinforced concrete shaft wall

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Application Number Priority Date Filing Date Title
CN2009102277056A CN101748799B (en) 2009-12-30 2009-12-30 Hydraulic lifting rollover construction method of chimney reinforced concrete shaft wall

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CN101748799A CN101748799A (en) 2010-06-23
CN101748799B true CN101748799B (en) 2011-04-06

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106193775A (en) * 2016-08-27 2016-12-07 中国二十二冶集团有限公司 The outside charging method of chimney shaft construction
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
CN106836948B (en) * 2017-03-31 2019-04-16 中国化学工程第七建设有限公司 A kind of construction technology of reinforced concrete structure
CN106939696A (en) * 2017-04-10 2017-07-11 贾茂来 Mould construction is spelled in a kind of superpower RC chimneys trapezoid template snapping digitlization of superelevation
CN107542065B (en) * 2017-09-15 2020-07-31 中国水利水电第十一工程局有限公司 Construction method for overturning and lifting small steel die of high-steep-clearance groove
CN107989371A (en) * 2017-11-09 2018-05-04 中国化学工程第六建设有限公司 Using the chimney method of construction and device of over-form construction

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