CN106003416A - Construction technique of prefabricated runway panels of airfield runway - Google Patents
Construction technique of prefabricated runway panels of airfield runway Download PDFInfo
- Publication number
- CN106003416A CN106003416A CN201610348782.7A CN201610348782A CN106003416A CN 106003416 A CN106003416 A CN 106003416A CN 201610348782 A CN201610348782 A CN 201610348782A CN 106003416 A CN106003416 A CN 106003416A
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- Prior art keywords
- airfield runway
- prefabricated
- concrete
- mould
- steel
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/29—Producing shaped prefabricated articles from the material by profiling or strickling the material in open moulds or on moulding surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/386—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/388—Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a construction technique of prefabricated runway panels of an airfield runway. The construction technique comprises the following steps that (1) the prefabricated panels of the airfield runway are prefabricated; (2) the prefabricated panels of the airfield runway are transported; and (3) the prefabricated panels of the airfield runway are installed. A method for prefabricating the prefabricated panels of the airfield runway comprises the steps of (1) production preparation, (2) concrete proportioning design, (3) preparation of a mould for the prefabricated panels of the airfield runway, (4) steel bar machining and framework manufacturing, (5) mould cleaning, (6) brushing of a releasing agent, (7) mould assembly, (8) installation of a steel reinforcement framework, (9) pouring and vibrating of concrete, (10) forming and plastering of concrete, (11) steam curing of prefabricated blocks of the panels of the airfield runway, (12) demolding of the prefabricated blocks of the panels of the airfield runway, (13) water curing and (14) finished product inspection. According to the construction technique, the construction quality is guaranteed, maintenance cost for quality defects is reduced, materials are used most reasonably, the utilization rate of the materials is guaranteed, material waste is prevented, both the construction quality and the construction technique of the airfield runway are greatly improved, and meanwhile, the construction annual cycle of runway projects is greatly shortened.
Description
Technical field
Airfield runway technical field of the present invention, particularly relates to the construction technology of the prefabricated pavement slab of a kind of airfield runway.
Background technology
Airport concrete pavement, is designed by rupture strength, is typically not provided with reinforcing bar in pavement slab, and concrete bears
Flexural tensile stress.It is when concrete bears stretching action, very sensitive to the defect such as crack, hole present in concrete,
Under Repeated Loading, crack be easier extension and and then cause destruction, it requires that concrete has good
Good internal structure and homogeneity.In pavement concretec large area making environment in the open, bear weather and environment
Long-term damage effect, as vibrate in paving process not in place, template spillage and the temperature strain of repeated action,
Drying and watering cycle, freeze-thaw cycle etc..Using cast in place process, concrete road surface quality should not control, and quality easily occurs
Problem, simultaneously in concrete road surface cast in place process, needs a point storehouse cast, and integral construction progress is slower.
Airfield runway and taxiway are scale pavement slab and some abnormity compositions, and the pavement slab size of scale is
5m × 5m and 5m × 4.5m, the highly versatile of the template of prefabricated pavement slab, it is possible to achieve factorial praluction, adopt
With the prefabricated pavement slab of batch production, quality can control in higher level, arrives job site the most again and assembles,
Efficiency of construction can be greatly improved, shorten construction period.
Summary of the invention
The present invention is for achieving the above object, it is provided that a kind of high-quality, the prefabricated airfield pavement of high efficiency batch production
Plate, then carries out field erected construction technology.
The technical solution used in the present invention:
The construction technology of the prefabricated pavement slab of airfield runway, its step is as follows:
(1) the prefabricated panel of airfield runway is prefabricated:
1) Operational preparation: a arranges the production line meeting technological requirement, and configures production equipment according to production capacity；b
After on the model sheetinstallat of pavement slab to production line, carry out inspection of quality, including precision, intensity index；C pacifies
Dress, debugging concrete batch plant, and examine and determine various measurement instrument, equipment；D passes through trial, determines coagulation
Soil design mixture proportion；
2) mix Design: airfield runway panel prefabricated section high-performance concrete mix uses fine coal
Ash and breeze dual mixing technology, and use low slump and low water binder ratio to be designed by index；
3) airfield runway precast surface board mold: airfield runway panel prefabricated section mold material is Q345 steel,
Main body, by bed die, both sides side form, two ends end mould, connects composition through adnexa, and side form die sinking mode is translational opening-closing,
End mould uses pivot；
4) steel bar meter and carcasing:
A framework of steel reinforcement uses high accuracy steel tire fixture assembled, it is ensured that framework of steel reinforcement both ends of the surface are concordant, make reinforcing bar
After frame enters mould, its protective layer is uniform；B reinforcing bar is prepared by reinforcement drawing, meets the reinforcing bar shape, straight indicated in chart
Footpath, length, numbering and weight；C framework of steel reinforcement molding uses soldered technique, uses carbon dioxide
Protection is welded, and main muscle replaces tied silk technology for binding with stirrup fixing employing carbon dioxide gas arc welding spot welding；dⅡ
Level reinforcing bar end need to be made its bending radius during 90 ° or 135 ° bendings and bend more than 4 times of bar diameters, middle part
Time bending radius should be greater than 5 times of bar diameters；In e welding process, weld seam must not occur stinging meat, dry joint, slag inclusion
Phenomenon, and spot welding is firm, prevents the framework of steel reinforcement when handling from loosening deformation；F according to code requirement to finished steel
Muscles and bones frame carries out quality inspection, qualified after list that to enter finished product laydown area stand-by for mark；
5) mold cleaning: a is according to outside after in first, and the order of first intermediate and then both sides, by mould inner peripheral and the end
Portion's concrete residue is cleaned out；B checks that mould peripheral seal circle is the most clean, it is the most correct to install；
Use steel wire lump that dies cavity property at parts of edges and corners mortar is polished during c mold cleaning；
6) brushing releasing agent: use quality cotton soft, bibulous or cotton yarn during a releasing agent brushing,
Smear uniformly, not holiday, particularly template turning, edges and corners can not holiday；B has brushed rear special messenger and has checked mould
At tool turning, corner angle, hand hole box, whether releasing agent has holiday phenomenon, if there being holiday coating；
7) mold clamp: a, by first end head formwork, the order matched moulds of rear vertical framework, closes two longitudinal moulds
First plate extracts all bolts of top, side out, prevents card from touching and causes template to distort, template turning edge joint position time assembled
Tightly, seamless；It should be noted that whether piece position is stained with foreign material during b matched moulds, if there being cleaning in time, it is ensured that mould
Tool splicing accuracy；Use torque spanner when c diebolt is tightened, control at 300N M；In using after d matched moulds
Footpath micrometer detection punching block width, qualified after enter subsequent processing；
8) framework of steel reinforcement is installed: when a installs framework of steel reinforcement, reinforcing bar does not collide with template；B installation mold
Coat releasing agent during curved bolt, and check that sealing ring guarantees well；C checks framework of steel reinforcement protective layer, installs pre-
Embedded part；
9) concreting is vibrated: a concrete is entered by carriage and pours above vibration room, divides two
Secondary blanking, each half, start mould in batches and carry pneumatic vibrator, first open middle two pneumatic vibrators
Water conservancy diversion, after filling, four pneumatic vibrators are opened simultaneously, and time of vibration, depending on concrete flowability, controls
4～6min, no more than 10min；B vibration processes must visually inspect at the bottom of fastening bolt and fixing bolt
Seat, attachment bolt base, injected hole bolt base；C when concrete surface stop sink or sink inconspicuous,
Interior formwork the most substantially occurs or has glowed mortar, concrete position, template corner is enriched and had
When mortar occurs, concrete vibrates；
10) concrete formation is wiped one's face: a all vibrates after molding, depending on temperature and concrete coagulation situation, enters
Row wipe one's face, point carse, medium and small three operations of wiping one's face, daubing: use high strength steel plate floating rule, strike off remove many
Remaining concrete, and roughly grind；In wipe one's face: receive after water until concrete and wipe one's face with steel trowel, make airport run
Pavement slab prefabricated section surfacing, smooth；Slightly, in smear after plastic covering cloth immediately, prevent period airport of resting
Field road guidance tape surface dehydration too fast generation contraction fissure, essence is wiped one's face: makes every effort to surface-brightening and prints without trowel, airport race
The error amount of pavement slab prefabricated section flatness be not more than ± 2mm, during wiping one's face will by hand pressure by concrete table
Face, extracts diebolt hole protection device embedded part when having inconspicuous indenture；
11) airfield runway panel prefabricated section steam curing: a after watering and smashing end quiet stopping 3～4 hours start to warm up
Steam-cured；B steam curing temperature controls: steam-cured point of airfield runway panel prefabricated section is quiet stop T, intensification S, constant temperature H,
Cooling J four-stage, programming rate must not exceed 15 DEG C of speed per hour, and maximum temperature is less than 55 DEG C；
Constant temperature more than 2 hours, relative humidity is not less than 90% state, and constant temperature time adjusts accordingly according to seasonal variations；
Cooling rate less than per hour 20 DEG C, and be at the uniform velocity cooled to poor with room temperature less than 15 DEG C；
12) the airfield runway panel prefabricated section demoulding: airfield runway panel prefabricated section intensity under same making condition reaches
Form removal after 40% side；
13) water curing: airfield runway panel prefabricated section nested arrangement in pond is neat, and is shelved on soft material
On the filler strip of material, filler strip consistency of thickness, every airfield runway panel prefabricated section divides into three fulcrums, and water supports 7
Go out pond after it to deposit；
14) product inspection: carry out an acceptance inspection according to prefabricated components inspection of quality specification, after end product quality acceptance(check), places
In the qualified district of finished product；
(2) airfield runway prefabricated panel transport:
Treat that airfield runway prefabricated panel indices meets design requirement, after testing after conformance with standard, go out
Fortune, uses the flat car with crane function to carry out hauling operation, or uses truck crane to coordinate large-scale wooden handcart, enter
Row transport；
(3) the prefabricated panel of airfield runway is installed: after scene possesses construction working condition, and precoated plate enters scene,
Install in hand fit's truck crane mode；Control panel glacing flatness and linear in installation process, treats that part is mixed
After solidifying soil precoated plate is in place, uses reinforcing bar to be welded to connect between concrete prefabricated board, use epoxy afterwards
Preformed hole is blocked by mortar, makes precoated plate be connected as entirety.
Beneficial effects of the present invention: the construction method of the present invention ensure that construction quality, decreases mass defect
The expense safeguarded, the most reasonably make use of material, it is ensured that the utilization ratio of material, prevents waste of material, make machine
Field runway construction has obtained bigger lifting in quality, in technology, will be greatly shortened runway engineering construction year simultaneously
Cycle.
Detailed description of the invention
The construction technology of the prefabricated pavement slab of airfield runway, its step is as follows:
(1) the prefabricated panel of airfield runway is prefabricated:
1) Operational preparation: a arranges the production line meeting technological requirement, and configures production equipment according to production capacity；b
After on the model sheetinstallat of pavement slab to production line, carry out inspection of quality, including precision, intensity index；C pacifies
Dress, debugging concrete batch plant, and examine and determine various measurement instrument, equipment；D passes through trial, determines coagulation
Soil design mixture proportion.
2) mix Design: airfield runway panel prefabricated section high-performance concrete mix uses fine coal
Ash and breeze dual mixing technology, and use low slump and low water binder ratio to be designed by index, leading indicator is:
1 strength grade of concrete C50, seepage-resistant grade P10, slump controls 60～100mm；2 control glue
Ratio is less than 0.46, and maximum chloride ion content is less than 0.06%；3 use non-alkali active aggregate, when using alkali
During active aggregates, maximum alkali content is less than 3kg/m3；
3) airfield runway precast surface board mold: airfield runway panel prefabricated section mold material is Q345 steel,
Main body, by bed die, both sides side form, two ends end mould, connects composition through adnexa, and side form die sinking mode is translational opening-closing,
End mould uses pivot；For ensure mould and die accuracy in use it should be noted that following some:
A mould and die accuracy controls: mould accuracy test to be carried out when marching into the arena and often have enough to meet the need 100 times, it is allowed to deviation；
B opens after punching block hangs out airfield runway panel prefabricated section every time and Guan Bi punching block prepares to pour airfield runway
Before panel prefabricated section, it is both needed to use corresponding tool, as used bamboo and wood, cotton cloth type instrument, and compressed air etc.
Punching block surfaces externally and internally is cleaned out, in order to avoid affecting mould splicing accuracy；C needs weekly to check that punching block is all of fixed
Position, bolt connection, fastening, the lubrication of rotary part；Fastening bolt, detent mechanism, curved bolt the most all need
Grease injection to be added, otherwise can affect the folding of mould, reduces work efficiency, affects die life；D pair
Moving member periodically to clean, and the most at least one times, removes with old lubricating oil, and check surface scar,
Bite, inordinate wear, after having processed, new lubricating oil must be spread；
4) steel bar meter and carcasing:
A framework of steel reinforcement uses high accuracy steel tire fixture assembled, it is ensured that framework of steel reinforcement both ends of the surface are concordant, make reinforcing bar
After frame enters mould, its protective layer is uniform；B reinforcing bar is prepared by reinforcement drawing, meets the reinforcing bar shape, straight indicated in chart
Footpath, length, numbering and weight；C framework of steel reinforcement molding uses soldered technique, uses carbon dioxide
Protection is welded, and main muscle replaces tied silk technology for binding with stirrup fixing employing carbon dioxide gas arc welding spot welding；dⅡ
Level reinforcing bar end need to be made its bending radius during 90 ° or 135 ° bendings and bend more than 4 times of bar diameters, middle part
Time bending radius should be greater than 5 times of bar diameters；In e welding process, weld seam must not occur stinging meat, dry joint, slag inclusion
Phenomenon, and spot welding is firm, prevents the framework of steel reinforcement when handling from loosening deformation；F according to code requirement to finished steel
Muscles and bones frame carries out quality inspection, qualified after list that to enter finished product laydown area stand-by for mark；
5) mold cleaning: a is according to outside after in first, and the order of first intermediate and then both sides, by mould inner peripheral and the end
Portion's concrete residue is cleaned out；B checks that mould peripheral seal circle is the most clean, it is the most correct to install；
Use steel wire lump that dies cavity property at parts of edges and corners mortar is polished during c mold cleaning；
6) brushing releasing agent: use quality cotton soft, bibulous or cotton yarn during a releasing agent brushing,
Smear uniformly, not holiday, particularly template turning, edges and corners can not holiday；B has brushed rear special messenger and has checked mould
At tool turning, corner angle, hand hole box, whether releasing agent has holiday phenomenon, if there being holiday coating；
7) mold clamp: a, by first end head formwork, the order matched moulds of rear vertical framework, closes two longitudinal moulds
First plate extracts all bolts of top, side out, prevents card from touching and causes template to distort, template turning edge joint position time assembled
Tightly, seamless；It should be noted that whether piece position is stained with foreign material during b matched moulds, if there being cleaning in time, it is ensured that mould
Tool splicing accuracy；Use torque spanner when c diebolt is tightened, control at 300N M；In using after d matched moulds
Footpath micrometer detection punching block width, qualified after enter subsequent processing；
8) framework of steel reinforcement is installed: when a installs framework of steel reinforcement, reinforcing bar does not collide with template；B installation mold
Coat releasing agent during curved bolt, and check that sealing ring guarantees well；C checks framework of steel reinforcement protective layer, installs pre-
Embedded part；
9) concreting is vibrated: a concrete is entered by carriage and pours above vibration room, divides two
Secondary blanking, each half, start mould in batches and carry pneumatic vibrator, first open middle two pneumatic vibrators
Water conservancy diversion, after filling, four pneumatic vibrators are opened simultaneously, and time of vibration, depending on concrete flowability, controls
4～6min, no more than 10min；B vibration processes must visually inspect at the bottom of fastening bolt and fixing bolt
Seat, attachment bolt base, injected hole bolt base；C when concrete surface stop sink or sink inconspicuous,
Interior formwork the most substantially occurs or has glowed mortar, concrete position, template corner is enriched and had
When mortar occurs, concrete vibrates:
10) concrete formation is wiped one's face: a all vibrates after molding, depending on temperature and concrete coagulation situation, enters
Row wipe one's face, point carse, medium and small three operations of wiping one's face, daubing: use high strength steel plate floating rule, strike off remove many
Remaining concrete, and roughly grind；In wipe one's face: receive after water until concrete and wipe one's face with steel trowel, make airport run
Pavement slab prefabricated section surfacing, smooth；Slightly, in smear after plastic covering cloth immediately, prevent period airport of resting
Field road guidance tape surface dehydration too fast generation contraction fissure, essence is wiped one's face: makes every effort to surface-brightening and prints without trowel, airport race
The error amount of the whole degree of pavement slab prefabricated section be not more than ± 2mm, during wiping one's face will by hand pressure by concrete surface,
Diebolt hole protection device embedded part is extracted when having inconspicuous indenture；
11) airfield runway panel prefabricated section steam curing: a after watering and smashing end quiet stopping 3～4 hours start to warm up
Steam-cured；B steam curing temperature controls: steam-cured point of airfield runway panel prefabricated section is quiet stop T, intensification S, constant temperature H,
Cooling J four-stage, programming rate must not exceed 15 DEG C of speed per hour, and maximum temperature is less than 55 DEG C；
Constant temperature more than 2 hours, relative humidity is not less than 90% state, and constant temperature time adjusts accordingly according to seasonal variations；
Cooling rate less than per hour 20 DEG C, and be at the uniform velocity cooled to poor with room temperature less than 15 DEG C；
12) the airfield runway panel prefabricated section demoulding: airfield runway panel prefabricated section intensity under same making condition reaches
Form removal after 40% side；
13) water curing: airfield runway panel prefabricated section nested arrangement in pond is neat, and is shelved on soft material
On the filler strip of material, filler strip consistency of thickness, every airfield runway panel prefabricated section divides into three fulcrums, and water supports 7
Go out pond after it to deposit；
14) product inspection: carry out an acceptance inspection according to prefabricated components inspection of quality specification, after end product quality acceptance(check), places
In the qualified district of finished product；
(2) airfield runway prefabricated panel transport:
Treat that airfield runway prefabricated panel indices meets design requirement, after testing after conformance with standard, go out
Fortune, uses the flat car with crane function to carry out hauling operation, or uses truck crane to coordinate large-scale wooden handcart, enter
Row transport；
(3) the prefabricated panel of airfield runway is installed: after scene possesses construction working condition, and precoated plate enters scene,
Install in hand fit's truck crane mode；Control panel glacing flatness and linear in installation process, treats that part is mixed
After solidifying soil precoated plate is in place, uses reinforcing bar to be welded to connect between concrete prefabricated board, use epoxy afterwards
Preformed hole is blocked by mortar, makes precoated plate be connected as entirety.
Above one embodiment of the present of invention is described in detail, but described content has been only the preferable of the present invention
Embodiment, it is impossible to be considered the practical range for limiting the present invention.All according to the present patent application scope made equal
Deng change and improvement etc., within all should still belonging to the patent covering scope of the present invention.
Claims (1)
1. the construction technology of the prefabricated pavement slab of airfield runway, it is characterised in that processing step is as follows:
(1) the prefabricated panel of airfield runway is prefabricated:
1) Operational preparation: a arranges the production line meeting technological requirement, and configures production equipment according to production capacity；b
After on the model sheetinstallat of pavement slab to production line, carry out inspection of quality, including precision, intensity index；C pacifies
Dress, debugging concrete batch plant, and examine and determine various measurement instrument, equipment；D passes through trial, determines coagulation
Soil design mixture proportion；
2) mix Design: airfield runway panel prefabricated section high-performance concrete mix uses fine coal
Ash and breeze dual mixing technology, and use low slump and low water binder ratio to be designed by index；
3) airfield runway precast surface board mold: airfield runway panel prefabricated section mold material is Q345 steel,
Main body, by bed die, both sides side form, two ends end mould, connects composition through adnexa, and side form die sinking mode is translational opening-closing,
End mould uses pivot；
4) steel bar meter and carcasing:
A framework of steel reinforcement uses high accuracy steel tire fixture assembled, it is ensured that framework of steel reinforcement both ends of the surface are concordant, make reinforcing bar
After frame enters mould, its protective layer is uniform；B reinforcing bar is prepared by reinforcement drawing, meets the reinforcing bar shape, straight indicated in chart
Footpath, length, numbering and weight；C framework of steel reinforcement molding uses soldered technique, uses carbon dioxide
Protection is welded, and main muscle replaces tied silk technology for binding with stirrup fixing employing carbon dioxide gas arc welding spot welding；dⅡ
Level reinforcing bar end need to be made its bending radius during 90 ° or 135 ° bendings and bend more than 4 times of bar diameters, middle part
Time bending radius should be greater than 5 times of bar diameters；In e welding process, weld seam must not occur stinging meat, dry joint, slag inclusion
Phenomenon, and spot welding is firm, prevents the framework of steel reinforcement when handling from loosening deformation；F according to code requirement to finished steel
Muscles and bones frame carries out quality inspection, qualified after list that to enter finished product laydown area stand-by for mark；
5) mold cleaning: a is according to outside after in first, and the order of first intermediate and then both sides, by mould inner peripheral and the end
Portion's concrete residue is cleaned out；B checks that mould peripheral seal circle is the most clean, it is the most correct to install；
Use steel wire lump that dies cavity property at parts of edges and corners mortar is polished during c mold cleaning；
6) brushing releasing agent: use quality cotton soft, bibulous or cotton yarn during a releasing agent brushing,
Smear uniformly, not holiday, particularly template turning, edges and corners can not holiday；B has brushed rear special messenger and has checked mould
At tool turning, corner angle, hand hole box, whether releasing agent has holiday phenomenon, if there being holiday coating；
7) mold clamp: a, by first end head formwork, the order matched moulds of rear vertical framework, closes two longitudinal moulds
First plate extracts all bolts of top, side out, prevents card from touching and causes template to distort, template turning edge joint position time assembled
Tightly, seamless；It should be noted that whether piece position is stained with foreign material during b matched moulds, if there being cleaning in time, it is ensured that mould
Tool splicing accuracy；Use torque spanner when c diebolt is tightened, control at 300N M；In using after d matched moulds
Footpath micrometer detection punching block width, qualified after enter subsequent processing；
8) framework of steel reinforcement is installed: when a installs framework of steel reinforcement, reinforcing bar does not collide with template；B installation mold
Coat releasing agent during curved bolt, and check that sealing ring guarantees well；C checks framework of steel reinforcement protective layer, installs pre-
Embedded part；
9) concreting is vibrated: a concrete is entered by carriage and pours above vibration room, divides two
Secondary blanking, each half, start mould in batches and carry pneumatic vibrator, first open middle two pneumatic vibrators
Water conservancy diversion, after filling, four pneumatic vibrators are opened simultaneously, and time of vibration, depending on concrete flowability, controls
4～6min, no more than 10min；B vibration processes must visually inspect at the bottom of fastening bolt and fixing bolt
Seat, attachment bolt base, injected hole bolt base；C when concrete surface stop sink or sink inconspicuous,
Interior formwork the most substantially occurs or has glowed mortar, concrete position, template corner is enriched and had
When mortar occurs, concrete vibrates；
10) concrete formation is wiped one's face: a all vibrates after molding, depending on temperature and concrete coagulation situation, enters
Row wipe one's face, point carse, medium and small three operations of wiping one's face, daubing: use high strength steel plate floating rule, strike off remove many
Remaining concrete, and roughly grind；In wipe one's face: receive after water until concrete and wipe one's face with steel trowel, make airport run
Pavement slab prefabricated section surfacing, smooth；Slightly, in smear after plastic covering cloth immediately, prevent period airport of resting
Field road guidance tape surface dehydration too fast generation contraction fissure, essence is wiped one's face: makes every effort to surface-brightening and prints without trowel, airport race
The error amount of pavement slab prefabricated section flatness be not more than ± 2mm, during wiping one's face will by hand pressure by concrete table
Face, extracts diebolt hole protection device embedded part when having inconspicuous indenture；
11) airfield runway panel prefabricated section steam curing: a after watering and smashing end quiet stopping 3～4 hours start to warm up
Steam-cured；B steam curing temperature controls: steam-cured point of airfield runway panel prefabricated section is quiet stop T, intensification S, constant temperature H,
Cooling J four-stage, programming rate must not exceed 15 DEG C of speed per hour, and maximum temperature is less than 55 DEG C；
Constant temperature more than 2 hours, relative humidity is not less than 90% state, and constant temperature time adjusts accordingly according to seasonal variations；
Cooling rate less than per hour 20 DEG C, and be at the uniform velocity cooled to poor with room temperature less than 15 DEG C；
12) the airfield runway panel prefabricated section demoulding: airfield runway panel prefabricated section intensity under same making condition reaches
Form removal after 40% side；
13) water curing: airfield runway panel prefabricated section nested arrangement in pond is neat, and is shelved on soft material
On the filler strip of material, filler strip consistency of thickness, every airfield runway panel prefabricated section divides into three fulcrums, and water supports 7
Go out pond after it to deposit；
14) product inspection: carry out an acceptance inspection according to prefabricated components inspection of quality specification, after end product quality acceptance(check), places
In the qualified district of finished product；
(2) airfield runway prefabricated panel transport:
Treat that airfield runway prefabricated panel indices meets design requirement, after testing after conformance with standard, go out
Fortune, uses the flat car with crane function to carry out hauling operation, or uses truck crane to coordinate large-scale wooden handcart, enter
Row transport；
(3) the prefabricated panel of airfield runway is installed: after scene possesses construction working condition, and precoated plate enters scene,
Install in hand fit's truck crane mode；Control panel glacing flatness and linear in installation process, treats that part is mixed
After solidifying soil precoated plate is in place, uses reinforcing bar to be welded to connect between concrete prefabricated board, use epoxy afterwards
Preformed hole is blocked by mortar, makes precoated plate be connected as entirety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348782.7A CN106003416A (en) | 2016-05-24 | 2016-05-24 | Construction technique of prefabricated runway panels of airfield runway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108756142A (en) * | 2018-05-23 | 2018-11-06 | 江苏无锡二建建设集团有限公司 | The construction method of large-area concrete terrace |
| CN109760462A (en) * | 2018-12-29 | 2019-05-17 | 湖南天泽建材有限公司 | Armored concrete assembly type multifunctional landscape goods of furniture for display rather than for use and preparation method thereof |
| CN109968521A (en) * | 2019-04-24 | 2019-07-05 | 成都城投城建科技有限公司 | A kind of packaged type bridges prefabricated components production method and industrial production line |
| CN110644312A (en) * | 2019-09-29 | 2020-01-03 | 上海隆基建设股份有限公司 | Construction process of prefabricated runway panel of airport runway |
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| CN106625991A (en) * | 2016-10-13 | 2017-05-10 | 常州中铁城建构件有限公司 | Novel cement floor |
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| CN109760462A (en) * | 2018-12-29 | 2019-05-17 | 湖南天泽建材有限公司 | Armored concrete assembly type multifunctional landscape goods of furniture for display rather than for use and preparation method thereof |
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| CN110788959A (en) * | 2019-10-29 | 2020-02-14 | 上海贝恒人居建设集团南通有限公司 | Manufacturing process of PC (polycarbonate) component |
| CN111037706A (en) * | 2019-12-25 | 2020-04-21 | 合肥中民筑友智造科技有限公司 | Novel PC component forming method |
| CN112873518A (en) * | 2021-01-19 | 2021-06-01 | 民航机场建设工程有限公司 | Factory prefabrication production line system and method for airport assembly type pavement slab |
| CN112936575A (en) * | 2021-01-19 | 2021-06-11 | 民航机场建设工程有限公司 | Factory prefabrication production line system and method for embossed airport assembly pavement slab |
| CN114102836A (en) * | 2021-11-01 | 2022-03-01 | 南京城建房桥建筑科技有限公司 | Efficient production process of duct piece |
| WO2023123687A1 (en) * | 2021-12-30 | 2023-07-06 | 中国民航大学 | Special device for integral plate replacement of cement concrete runway and construction method |
| CN115198948A (en) * | 2022-08-16 | 2022-10-18 | 中建八局第二建设有限公司 | Recycled aggregate concrete laminated slab and production process thereof |
| CN117611016A (en) * | 2024-01-24 | 2024-02-27 | 中铁四局集团有限公司 | Full-flow traceability production system for small concrete prefabricated parts based on Internet of things |
| CN117611016B (en) * | 2024-01-24 | 2024-04-05 | 中铁四局集团有限公司 | Full-flow traceability production system for small concrete prefabricated parts based on Internet of things |
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