CN107299620A - Sluice main structure construction scheme - Google Patents
Sluice main structure construction scheme Download PDFInfo
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- CN107299620A CN107299620A CN201710395270.0A CN201710395270A CN107299620A CN 107299620 A CN107299620 A CN 107299620A CN 201710395270 A CN201710395270 A CN 201710395270A CN 107299620 A CN107299620 A CN 107299620A
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- gate
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- sluice
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
Abstract
The invention discloses a kind of sluice main structure construction scheme, be related to hydraulic engineering field, the sluice main structure construction scheme employ earth excavation and fill, the process that the construction of rock excavation, projects, grouting construction, concrete and reinforced concrete engineering, stonework, metal structure and electrical equipment are installed carries out construction.The sluice main structure construction scheme fully takes into account the construction difficulty of sluice, built using optimal sequence of construction and mode, the construction quality of sluice main body can be effectively improved, and construction cost is reduced to greatest extent, the maintenance and reinforcement expense of saving, day-to-day operation maintenance cost of reduction etc., improve the benefits, increased Land Use Efficiency such as land use value.
Description
Technical field
The present invention relates to hydraulic engineering field, more particularly to a kind of sluice main structure construction scheme.
Background technology
Sluice is to be built in the low water head hydraulic structure for controlling flow and regulation water level on river course and channel using gate.
Closed shutter with flood retention, gear tide or can raise upper pond level, to meet irrigations, generating, shipping, aquatic products, environmental protection, industry and live
Needed with water etc.；Starting gate, can drain off floodwater, excess water, abandon water or waste water, also can be to downstream river course or canal water supply.
In hydraulic engineering, sluice is widely used as dash, the building for sluicing or fetching water.Existing sluice construction method compares biography
System, causes construction speed slow, with high costs, there is day-to-day operation maintenance cost height, the problems such as land use value is low.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of sluice main structure construction scheme, can effectively improve water
The construction quality of lock main body, and construction cost, the maintenance and reinforcement expense of saving, the day-to-day operation of reduction are reduced to greatest extent
Maintenance cost etc., improves the benefits, increased Land Use Efficiency such as land use value.
To achieve the above object, the present invention provides following technical scheme：The sluice main structure construction scheme is included such as
Lower step：
(1) earth excavation and fill：Water gate engineering earth excavation is mainly on the left of lock chamber and aileron earth excavation, and slope is opened
Dig, dry work, using 1~2m3Backacter stage excavation, spoir 10t dump trucks are transported to 1km, be can be used as back
The spoil banketed is deposited in the non-construction section in both sides nearby, to avoid disturbing foundation soil, 0.3m protective layers is finally reserved, in concrete
Excavated again before pouring, pour the plain concrete bed courses of C20 after excavation immediately, protective layer, basic tooth pin groove and the whole slope of side slope etc. are by artificial
Excavate finishing, strike off, double rubber-tired carts are transported, the backfill earthwork is largely using the earthwork excavated, and insufficient section is purchased outside the venue from fetching earth,
Backfill was divided to for two phases carried out according to aileron or lock wall construction performance, and the second phase is returned after cofferdam demolition using cofferdam cubic metre of earth
Fill out, the backfill earthwork is carried out after correspondent section aileron, lock wall are completed and reach the intensity of requirement, and backfill is transported by 10t dump trucks
Scene is transported to, backfilling of earthwork answers placement in layers, compacting, and transport uses rubber-tired cart, and compacting is using tractor and is aided with breast-stroke ramming
Machine, corner and narrow positions fill out compacting by artificial paving；；
(2) rock excavation：Local sluice basis is rock excavation, and depth capacity about 2.5m is drilled with hand air drill and excavated, built
Basal plane protective layer uses hand excavation, and rock ballast is accumulated by 88kw bull-dozers, uses 1m3Excavator digs dress, is transported to by 5t dump trucks
Interim stockyard is used to backfill after stacking.Part backbreak using the plain concrete backfills of C20；
(3) projects are constructed：Old gate electric equipment can be removed using original driving, and gate and headstock gear are used and hung
Go out to remove, remove equipment and specified storage place is transported to automobile, because ship lock and sluice share a set of hydraulic headstock gear, sluice
Ship lock hydraulic headstock gear should be first installed, it is ensured that the normal keying of ship lock before dismounting, concrete is removed by manually using pneumatic pick with the rectangular slab of stone is grouted
Carry out, hand fit 1m3Excavator, dress 5t dump trucks are mucked haulage, and backfill and tile construction road for aileron；
(4) grouting construction：The consolidation by grouting of ship lock gate pier should construct in advance.Decomposed rock during consolidation grouting grout hole bottom hole enters
Layer 1.5m, average hole depth 6m, are drilled using geological drilling rig, first carry out the grouting of periphery round, then in the middle part of outer and interior progress
The grouting of round, constructs by II sequences；Drill as vertical hole, bore diameter is not less than 56mm；Design grouting pressure is 0.6Mpa,
The average permeability rate of the dam foundation is less than 5Lu after grouting；Drill appropriate to the occasion selection carbide drill, slim-hole drilling, the diameter of inspection hole
Can be bigger, the deviation of arrangement hole position should be less than 10cm when consolidation grouting drills, and deviation of the pore-forming in vertical direction should be less than 25
Interruption, grout leaking should be avoided the occurrence of during~35cm, grouting construction, grout, slurry is returned and a problem that spillage, and should be noted that and see
The metabolies such as analysis rock is lifted, crack is increased are examined, grout curtain grout hole average hole depth 10m is drilled using geological drilling rig,
Point sequence is gradually encrypted, and segmentation from bottom to top is in the milk；
(5) concrete and reinforced concrete engineering：Concrete structure mainly includes bottom plate, lock wall, gate pier, intake pool, disappeared
The concrete at the positions such as power pond, aileron, the principle that concrete construction follows " secondary after the former head, shallow after first depth " is organized and implemented, coagulation
Soil uses commerical ready-mixed concrete, is transported by concrete delivery truck to after scene, then is put in storage by concrete mixer conveying, and scene is set
0.4m3One, moving concrete mixer is as supplement, and casting concrete is vibrated using 2.2kw poker vibrators, between vibrating a little
Away from 0.45m, by blossom type interlaced arrangement, side wall and the segmentation of middle pier concrete are poured to design altitude, and aileron wall body is by structure point
Seam progress, which is constructed, divides a storehouse, and the mass concrete such as sluice plate, Dun Qiang is arranged in and starts construction 11~January, it is necessary to fully examines
Consider the unfavorable factor during concrete works is constructed at low temperature, take the practicable technical measures such as insulation, antifreeze, it is ensured that be mixed
Solidifying soil meets design requirement, and concrete curing can be used after straw bag method of curing, i.e. form removal, in time the insulation of covering straw bag, in covering
Straw bag on sprinkle water maintenance, keep concrete surface moistening, curing time typically be no less than 14 days, pier wall concrete construction,
Temperature control measures are carried out, to prevent concrete thermal cracking, it is ensured that the construction quality and progress of engineering；
(6) stonework：Sand material need to debark and store up to operation platform mainly by shipping from the through Project Areas in borrow-area,
Bed course rubble transports to working face, Manual with 10t dumpers；Packed rubble is using artificial pack, artificial laying, packed rubble
Rubble select 5~40mm of particle diameter, wherein 20~40mm of particle diameter to account for 40~50%, packed rubble laying will keep continuity,
Separation is prevented, and must not have the aspect changing of the relative positions and interruption, packed rubble should be laid from bottom to top, and claps that paving is even, surface undulation is poor
50mm is cannot be greater than, Wai Jiang sides shield beach jackstone can be multiplied climax by stone dumper and rush beach jackstone, if can not reach, stone dumper is thrown on the spot
Stone, is manually carried to working face, and the jackstone backfill of punching hole and anti-scour trench jackstone use dump truck or automobile by block stone before cofferdam demolition
Working face jackstone is transported to, building block stone is filled and uses 2m with building stones3Loading machine entrucking, 10t dump trucks fortune is discharged to working face, using people
Work is built by laying bricks or stones, and it is the graduation two concrete of C20 fine aggregates one to fill building block stone concrete, and maximum particle diameter 2cm, cement is 42.5 grades of ordinary silicons
Acid salt cement, mixing water is clean fresh water.Concrete, which is mixed and stirred, uses 0.4m3Portable mixer is produced, rubber-tired cart transport, is adopted
Manually spade, which is thrown, is filled, and poker vibrator is made firm by ramming, and filling concrete is finished, to ensure that concrete has suitable curing condition,
And abnormal contraction is prevented, laying straw bag in masonry surface keeps wet, the concrete curing time is no less than 10 days, buries
Stone concrete barricade is laying of markstone rate 20~30%, it is desirable to which building stones quality is solid, no weathering and crackle, and the building stones size mixed in concrete should be big
In the 1/3 of poured position minimum thickness, and 300mm is cannot be greater than, surface is rinsed well using water if any sludge, scale, poured
When building, it should successively pave rubble and pour concrete, until barricade top surface, keeps having the concrete covering thick no less than 100mm at the top of rubble
Layer, 20% no more than concrete volume should be controlled by filling rubble quantity, and rubble is laid should be evenly distributed, be made greatly downwards, facet
Upwards, rubble spacing is typically no less than 100mm, leaves template or cell wall distance is not less than 150mm, to guarantee to insert therebetween
Vibrating head is made firm by ramming can be wrapped up with rubble by concrete；
(7) metal structure and electrical equipment are installed：The metal structure of water gate engineering be mainly main gate, bulkhead gate,
Headstock gear and embedded part, gate aperture dead size are 8.0 × 6.7m, gate integral assembling on factory's platform for making, using ship
Harbour nearby is transported to, then is lifted in place with LT1040 autocranes, the crane biggest lifting capacity is 40t, and contractor unit exists
To check material quality certificate before metal structure making in time and sample doing the experiment of material physicochemical property, one, two classes are welded
Seam carries out ultrasonic examination inspection and X-ray examination by code requirement, and profile chi is carried out to the assembled metal structure completed of welding
Very little and flatness inspection, it is ensured that the making quality of metal structure, metal structure embedded part is pre-buried using second stage concrete, and embedded part is installed
Quality directly influences the installation quality of gate, it is desirable to which installation dimension is accurate, fixed reliable and meets drawing and code requirement, Gu
Determine winch hoist and purchase finished product from producer, installation should be on the basis of gate lifting center, and vertical, horizontal centre deviation should be less than
3mm, horizontal departure should be less than 0.5/1000, and height variation is preferably less than 5mm.
It is preferred that, earthwork construction program in the step (1)：Must with architecture construction phase cooperation, as early as possible
The basic engineering construction scope of operation is provided, the requirement of architecture construction plan is met, while earthwork construction must comply with a cubic metre of earth excavation and filling
The principle of allotment is balanced, makes full use of the earth material for meeting design requirement to carry out backfilling of earthwork, the secondary transhipment amount of the earthwork is reduced as far as possible.
It is preferred that, stonework includes blotter, packed rubble, jackstone and fills building block stone, the cubic meter of stone in the step (6)
The implementation of engineering should maintain strict control over sandstone material quality and construction quality, the level of filtering layer is matched somebody with somebody, the density of stone body, flatness should height
Degree is paid attention to, and block stone should select that quality is hard, durable, texture uniform, the building stones of flawless.
Beneficial effect using above technical scheme is：The sluice main structure construction scheme employs earth excavation and filled out
Build, the construction of rock excavation, projects, grouting construction, concrete and reinforced concrete engineering, stonework, metal structure and
The process that electrical equipment is installed carries out construction.The construction that the sluice main structure construction scheme fully takes into account sluice is difficult
Point, is built using optimal sequence of construction and mode, can effectively improve the construction quality of sluice main body, and to greatest extent
Reduction construction cost, the maintenance and reinforcement expense of saving, the day-to-day operation maintenance cost of reduction etc. improve land use value etc.
Benefit, increased Land Use Efficiency.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the process chart of sluice main structure construction scheme of the present invention；
Fig. 2 is gate pier construction process figure.
Embodiment
Illustrate the preferred embodiment of sluice main structure construction scheme of the present invention below in conjunction with the accompanying drawings.
Fig. 1 and Fig. 2 show the embodiment of sluice main structure construction scheme of the present invention：
With reference to Fig. 1 and Fig. 2, the sluice main structure construction scheme comprises the following steps：
(1) earth excavation and fill：Water gate engineering earth excavation is mainly on the left of lock chamber and aileron earth excavation, and slope is opened
Dig, dry work, using 1~2m3Backacter stage excavation, spoir 10t dump trucks are transported to 1km, be can be used as back
The spoil banketed is deposited in the non-construction section in both sides nearby, to avoid disturbing foundation soil, 0.3m protective layers is finally reserved, in concrete
Excavated again before pouring, pour the plain concrete bed courses of C20 after excavation immediately, protective layer, basic tooth pin groove and the whole slope of side slope etc. are by artificial
Excavate finishing, strike off, double rubber-tired carts are transported, the backfill earthwork is largely using the earthwork excavated, and insufficient section is purchased outside the venue from fetching earth,
Backfill was divided to for two phases carried out according to aileron or lock wall construction performance, and the second phase is returned after cofferdam demolition using cofferdam cubic metre of earth
Fill out, the backfill earthwork is carried out after correspondent section aileron, lock wall are completed and reach the intensity of requirement, and backfill is transported by 10t dump trucks
Scene is transported to, backfilling of earthwork answers placement in layers, compacting, and transport uses rubber-tired cart, and compacting is using tractor and is aided with breast-stroke ramming
Machine, corner and narrow positions fill out compacting by artificial paving；；
(2) rock excavation：Local sluice basis is rock excavation, and depth capacity about 2.5m is drilled with hand air drill and excavated, built
Basal plane protective layer uses hand excavation, and rock ballast is accumulated by 88kw bull-dozers, uses 1m3Excavator digs dress, is transported to by 5t dump trucks
Interim stockyard is used to backfill after stacking.Part backbreak using the plain concrete backfills of C20；
(3) projects are constructed：Old gate electric equipment can be removed using original driving, and gate and headstock gear are used and hung
Go out to remove, remove equipment and specified storage place is transported to automobile, because ship lock and sluice share a set of hydraulic headstock gear, sluice
Ship lock hydraulic headstock gear should be first installed, it is ensured that the normal keying of ship lock before dismounting, concrete is removed by manually using pneumatic pick with the rectangular slab of stone is grouted
Carry out, hand fit 1m3Excavator, dress 5t dump trucks are mucked haulage, and backfill and tile construction road for aileron；
(4) grouting construction：The consolidation by grouting of ship lock gate pier should construct in advance.Decomposed rock during consolidation grouting grout hole bottom hole enters
Layer 1.5m, average hole depth 6m, are drilled using geological drilling rig, first carry out the grouting of periphery round, then in the middle part of outer and interior progress
The grouting of round, constructs by II sequences；Drill as vertical hole, bore diameter is not less than 56mm；Design grouting pressure is 0.6Mpa,
The average permeability rate of the dam foundation is less than 5Lu after grouting；Drill appropriate to the occasion selection carbide drill, slim-hole drilling, the diameter of inspection hole
Can be bigger, the deviation of arrangement hole position should be less than 10cm when consolidation grouting drills, and deviation of the pore-forming in vertical direction should be less than 25
Interruption, grout leaking should be avoided the occurrence of during~35cm, grouting construction, grout, slurry is returned and a problem that spillage, and should be noted that and see
The metabolies such as analysis rock is lifted, crack is increased are examined, grout curtain grout hole average hole depth 10m is drilled using geological drilling rig,
Point sequence is gradually encrypted, and segmentation from bottom to top is in the milk；
(5) as shown in Fig. 2 concrete and reinforced concrete engineering：Concrete structure mainly include bottom plate, lock wall, gate pier,
The concrete at the positions such as intake pool, stiling basin, aileron, concrete construction follows the principle tissue of " secondary after the former head, shallow after first depth "
Implement, concrete uses commerical ready-mixed concrete, is transported by concrete delivery truck to after scene, then be conveyed into by concrete mixer
Storehouse, scene sets 0.4m3One, moving concrete mixer is as supplement, and casting concrete is vibrated using 2.2kw poker vibrators,
Vibrated a spacing 0.45m, by blossom type interlaced arrangement, and side wall and the segmentation of middle pier concrete are poured to design altitude, aileron wall body
By a structural jointing progress construction point storehouse, the mass concrete such as sluice plate, Dun Qiang is arranged in and starts construction 11~January, must
Must take into full account concrete works construct at low temperature in unfavorable factor, take the practicable technology such as insulation, antifreeze to arrange
Apply, it is ensured that concrete meets design requirement, concrete curing can be used after straw bag method of curing, i.e. form removal, and covering straw bag is protected in time
Temperature, maintenance of being sprinkled water on the straw bag of covering keeps concrete surface moistening, and curing time is typically no less than 14 days, pier wall coagulation
Soil application work, will carry out temperature control measures, to prevent concrete thermal cracking, it is ensured that the construction quality and progress of engineering；
(6) stonework：Sand material need to debark and store up to operation platform mainly by shipping from the through Project Areas in borrow-area,
Bed course rubble transports to working face, Manual with 10t dumpers；Packed rubble is using artificial pack, artificial laying, packed rubble
Rubble select 5~40mm of particle diameter, wherein 20~40mm of particle diameter to account for 40~50%, packed rubble laying will keep continuity,
Separation is prevented, and must not have the aspect changing of the relative positions and interruption, packed rubble should be laid from bottom to top, and claps that paving is even, surface undulation is poor
50mm is cannot be greater than, Wai Jiang sides shield beach jackstone can be multiplied climax by stone dumper and rush beach jackstone, if can not reach, stone dumper is thrown on the spot
Stone, is manually carried to working face, and the jackstone backfill of punching hole and anti-scour trench jackstone use dump truck or automobile by block stone before cofferdam demolition
Working face jackstone is transported to, building block stone is filled and uses 2m with building stones3Loading machine entrucking, 10t dump trucks fortune is discharged to working face, using people
Work is built by laying bricks or stones, and it is the graduation two concrete of C20 fine aggregates one to fill building block stone concrete, and maximum particle diameter 2cm, cement is 42.5 grades of ordinary silicons
Acid salt cement, mixing water is clean fresh water.Concrete, which is mixed and stirred, uses 0.4m3Portable mixer is produced, rubber-tired cart transport, is adopted
Manually spade, which is thrown, is filled, and poker vibrator is made firm by ramming, and filling concrete is finished, to ensure that concrete has suitable curing condition,
And abnormal contraction is prevented, laying straw bag in masonry surface keeps wet, the concrete curing time is no less than 10 days, buries
Stone concrete barricade is laying of markstone rate 20~30%, it is desirable to which building stones quality is solid, no weathering and crackle, and the building stones size mixed in concrete should be big
In the 1/3 of poured position minimum thickness, and 300mm is cannot be greater than, surface is rinsed well using water if any sludge, scale, poured
When building, it should successively pave rubble and pour concrete, until barricade top surface, keeps having the concrete covering thick no less than 100mm at the top of rubble
Layer, 20% no more than concrete volume should be controlled by filling rubble quantity, and rubble is laid should be evenly distributed, be made greatly downwards, facet
Upwards, rubble spacing is typically no less than 100mm, leaves template or cell wall distance is not less than 150mm, to guarantee to insert therebetween
Vibrating head is made firm by ramming can be wrapped up with rubble by concrete；
(7) metal structure and electrical equipment are installed：The metal structure of water gate engineering be mainly main gate, bulkhead gate,
Headstock gear and embedded part, gate aperture dead size are 8.0 × 6.7m, gate integral assembling on factory's platform for making, using ship
Harbour nearby is transported to, then is lifted in place with LT1040 autocranes, the crane biggest lifting capacity is 40t, and contractor unit exists
To check material quality certificate before metal structure making in time and sample doing the experiment of material physicochemical property, one, two classes are welded
Seam carries out ultrasonic examination inspection and X-ray examination by code requirement, and profile chi is carried out to the assembled metal structure completed of welding
Very little and flatness inspection, it is ensured that the making quality of metal structure, metal structure embedded part is pre-buried using second stage concrete, and embedded part is installed
Quality directly influences the installation quality of gate, it is desirable to which installation dimension is accurate, fixed reliable and meets drawing and code requirement, Gu
Determine winch hoist and purchase finished product from producer, installation should be on the basis of gate lifting center, and vertical, horizontal centre deviation should be less than
3mm, horizontal departure should be less than 0.5/1000, and height variation is preferably less than 5mm.
Earthwork construction program in step (1)：Foundation engineering must be provided as early as possible with architecture construction phase cooperation
Operation side, meets the requirement of architecture construction plan, while earthwork construction must comply with a cubic metre of earth original for excavation and filling balance allotment
Then, make full use of the earth material for meeting design requirement to carry out backfilling of earthwork, the secondary transhipment amount of the earthwork is reduced as far as possible.
Stonework includes blotter, packed rubble, jackstone and fills building block stone, the implementation of stonework in step (6)
Sandstone material quality and construction quality should be maintained strict control over, the level of filtering layer is matched somebody with somebody, the density of stone body, flatness should be paid much attention to, block
Stone should select that quality is hard, durable, texture uniform, the building stones of flawless.
The above is only the preferred embodiment of the present invention, it is noted that for the person of ordinary skill of the art,
Without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.
Claims (3)
1. a kind of sluice main structure construction scheme, it is characterised in that：The sluice main structure construction scheme includes following step
Suddenly：
(1) earth excavation and fill：Water gate engineering earth excavation is mainly on the left of lock chamber and aileron earth excavation, and slope is excavated,
Dry work, using 1~2m3Backacter stage excavation, spoir 10t dump trucks are transported to 1km, can be used as backfill
Spoil be deposited in nearby in the non-construction section in both sides, to avoid disturbing foundation soil, 0.3m protective layers are finally reserved, in concrete placings
It is preceding to excavate again, the plain concrete bed courses of C20 are poured after excavation immediately, protective layer, basic tooth pin groove and the whole slope of side slope etc. are by hand excavation
Repair, strike off, double rubber-tired carts are transported, the backfill earthwork is largely using the earthwork excavated, and insufficient section is purchased outside the venue from fetching earth, and backfills
It was divided to for two phases carried out according to aileron or lock wall construction performance, the second phase is backfilled after cofferdam demolition using cofferdam cubic metre of earth, is returned
Earth fill is carried out after correspondent section aileron, lock wall are completed and reach the intensity of requirement, and backfill is transported to existing by 10t dump trucks
, backfilling of earthwork answers placement in layers, compacting, and transport uses rubber-tired cart, and compacting is using tractor and is aided with frog hammer, corner
Compacting is filled out by artificial paving with narrow positions；；
(2) rock excavation：Local sluice basis is rock excavation, and depth capacity about 2.5m is drilled with hand air drill and excavated, foundation plane
Protective layer uses hand excavation, and rock ballast is accumulated by 88kw bull-dozers, uses 1m3Excavator digs dress, is transported to by 5t dump trucks temporarily
Stockyard is used to backfill after stacking.Part backbreak using the plain concrete backfills of C20；
(3) projects are constructed：Old gate electric equipment can be removed using original driving, and gate and headstock gear are used to hang out and torn open
Remove, remove equipment and specified storage place is transported to automobile, because ship lock and sluice share a set of hydraulic headstock gear, sluice is removed
Before ship lock hydraulic headstock gear should be first installed, it is ensured that the normal keying of ship lock, concrete and grout the rectangular slab of stone remove by manually being carried out with pneumatic pick,
Hand fit 1m3Excavator, dress 5t dump trucks are mucked haulage, and backfill and tile construction road for aileron；
(4) grouting construction：The consolidation by grouting of ship lock gate pier should construct in advance.Weathered rock formation during consolidation grouting grout hole bottom hole enters
1.5m, average hole depth 6m, is drilled using geological drilling rig, first carries out the grouting of periphery round, then by row in the middle part of outer and interior progress
The grouting in hole, constructs by II sequences；Drill as vertical hole, bore diameter is not less than 56mm；Design grouting pressure is 0.6Mpa, is filled
The average permeability rate of the dam foundation is less than 5Lu after slurry；Drill appropriate to the occasion selection carbide drill, slim-hole drilling, and the diameter of inspection hole can
Bigger, the deviation of arrangement hole position should be less than 10cm when consolidation grouting drills, and deviation of the pore-forming in vertical direction should be less than 25~
Interruption, grout leaking should be avoided the occurrence of during 35cm, grouting construction, grout, slurry is returned and a problem that spillage, and should be noted that observation
The metabolies such as analysis rock is lifted, crack increasing, grout curtain grout hole average hole depth 10m is drilled using geological drilling rig, point
Sequence is gradually encrypted, and segmentation from bottom to top is in the milk；
(5) concrete and reinforced concrete engineering：Concrete structure mainly include bottom plate, lock wall, gate pier, intake pool, stiling basin,
The concrete at the positions such as aileron, the principle that concrete construction follows " secondary after the former head, shallow after first depth " is organized and implemented, and concrete is adopted
With commerical ready-mixed concrete, transported to after scene, then put in storage by concrete mixer conveying by concrete delivery truck, scene sets 0.4m3
One, moving concrete mixer is as supplement, and casting concrete is vibrated using 2.2kw poker vibrators, a spacing of vibrating
0.45m, by blossom type interlaced arrangement, side wall and the segmentation of middle pier concrete are poured to design altitude, and aileron wall body presses structural jointing
Progress, which is constructed, divides a storehouse, and the mass concrete such as sluice plate, Dun Qiang is arranged in and starts construction 11~January, it is necessary to takes into full account
Concrete works construct at low temperature in unfavorable factor, take the practicable technical measures such as insulation, antifreeze, it is ensured that coagulation
Soil meets design requirement, and concrete curing can be used after straw bag method of curing, i.e. form removal, in time the insulation of covering straw bag, in covering
Sprinkle water and conserve on straw bag, keep concrete surface moistening, curing time is typically no less than 14 days, and pier wall concrete construction will be done
Good temperature control measures, to prevent concrete thermal cracking, it is ensured that the construction quality and progress of engineering；
(6) stonework：Sand material need to debark and store up to operation platform, bed course mainly by shipping from the through Project Areas in borrow-area
Rubble transports to working face, Manual with 10t dumpers；Packed rubble is using artificial pack, artificial laying, packed rubble it is broken
Stone selects 5~40mm of particle diameter, wherein 20~40mm of particle diameter to account for 40~50%, and packed rubble laying will keep continuity, prevent
Separation, and must not have the aspect changing of the relative positions and interruption, and packed rubble should be laid from bottom to top, and clap that paving is even, and surface undulation difference must not
More than 50mm, Wai Jiang sides shield beach jackstone can be multiplied climax by stone dumper and rush beach jackstone, if can not reach, stone dumper jackstone, people on the spot
Work is carried to working face, and block stone is transported to work by the jackstone backfill of punching hole and anti-scour trench jackstone before cofferdam demolition with dump truck or automobile
Make face jackstone, fill building block stone and use 2m with building stones3Loading machine entrucking, 10t dump trucks fortune is discharged to working face, using artificial block
Build, it is the graduation two concrete of C20 fine aggregates one to fill building block stone concrete, and maximum particle diameter 2cm, cement is 42.5 grades of normal silicates
Cement, mixing water is clean fresh water.Concrete, which is mixed and stirred, uses 0.4m3Portable mixer is produced, rubber-tired cart transport, using people
Work spade, which is thrown, to be filled, and poker vibrator is made firm by ramming, and filling concrete is finished, and to ensure that concrete has suitable curing condition, and is prevented
Only abnormal to shrink, laying straw bag in masonry surface keeps wet, the concrete curing time is no less than 10 days, concrete of layinging of markstone
Barricade is laying of markstone rate 20~30%, it is desirable to which building stones quality is solid, no weathering and crackle, and the building stones size mixed in concrete not should be greater than institute
The 1/3 of position minimum thickness is poured, and cannot be greater than 300mm, surface is rinsed well using water if any sludge, scale, poured
When, it should successively pave rubble and pour concrete, until barricade top surface, keeps having the concrete coating thick no less than 100mm at the top of rubble,
Filled rubble quantity should control 20% no more than concrete volume, and rubble is laid should be evenly distributed, make it is big downwards, it is small towards
On, rubble spacing is typically no less than 100mm, leaves template or cell wall distance is not less than 150mm, shaken with guaranteeing to insert therebetween
Dynamic rod is made firm by ramming can be wrapped up with rubble by concrete；
(7) metal structure and electrical equipment are installed：The metal structure of water gate engineering is mainly main gate, bulkhead gate, keying
Machine and embedded part, gate aperture dead size is 8.0 × 6.7m, gate integral assembling on factory's platform for making, using shipping extremely
Neighbouring harbour, then lifted in place with LT1040 autocranes, the crane biggest lifting capacity is 40t, and contractor unit is being carried out
Metal structure will check material quality certificate in time and sample before making does the experiment of material physicochemical property, and one, two class weld seams are pressed
Code requirement carries out ultrasonic examination inspection and X-ray examination, to it is assembled weld the metal structure completed carry out appearance and size and
Flatness is checked, it is ensured that the making quality of metal structure, and metal structure embedded part is pre-buried using second stage concrete, embedded part installation quality
Directly influence the installation quality of gate, it is desirable to which installation dimension is accurate, fixed reliable and meets drawing and code requirement, fixed volume
Raise formula headstock gear and purchase finished product from producer, installation should be on the basis of gate lifting center, and vertical, horizontal centre deviation should be less than 3mm,
Horizontal departure should be less than 0.5/1000, and height variation is preferably less than 5mm.
2. sluice main structure construction scheme according to claim 1, it is characterised in that：Earthwork work in the step (1)
Journey operational procedure：The basic engineering construction scope of operation must be as early as possible provided, building is met and apply with architecture construction phase cooperation
The requirement of work plan, while earthwork construction must comply with a cubic metre of earth principle for excavation and filling balance allotment, makes full use of and meets design requirement
Earth material carry out backfilling of earthwork, as far as possible reduce the secondary transhipment amount of the earthwork.
3. sluice main structure construction scheme according to claim 1, it is characterised in that：Cubic meter of stone work in the step (6)
Journey includes blotter, packed rubble, jackstone and fills building block stone, and the implementation of stonework should maintain strict control over sandstone material quality and construction
Gate of the quality monitoring, matches somebody with somebody, the density of stone body, flatness should be paid much attention to the level of filtering layer, and block stone should select that quality is hard, durable, line
Reason is uniform, the building stones of flawless.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532562A (en) * | 2018-04-23 | 2018-09-14 | 中国水利水电第九工程局有限公司 | A kind of concrete for sluice of tumbling automatically is from inclining door manufacture method |
| CN110700207A (en) * | 2019-10-16 | 2020-01-17 | 中交第三航务工程勘察设计院有限公司 | Fabricated sluice stilling basin structure on soft soil foundation and construction method thereof |
-
2017
- 2017-05-22 CN CN201710395270.0A patent/CN107299620A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532562A (en) * | 2018-04-23 | 2018-09-14 | 中国水利水电第九工程局有限公司 | A kind of concrete for sluice of tumbling automatically is from inclining door manufacture method |
| CN110700207A (en) * | 2019-10-16 | 2020-01-17 | 中交第三航务工程勘察设计院有限公司 | Fabricated sluice stilling basin structure on soft soil foundation and construction method thereof |
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