CN105970997A - Steel tower-aloft object prefabricated compound assembled suit pile foundation and manufacturing method thereof - Google Patents
Steel tower-aloft object prefabricated compound assembled suit pile foundation and manufacturing method thereof Download PDFInfo
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- CN105970997A CN105970997A CN201610387105.6A CN201610387105A CN105970997A CN 105970997 A CN105970997 A CN 105970997A CN 201610387105 A CN201610387105 A CN 201610387105A CN 105970997 A CN105970997 A CN 105970997A
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- inorganic gel
- reinforced concrete
- gel mixture
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
Abstract
The invention discloses a steel tower-aloft object prefabricated compound assembled suit pile foundation. The steel tower-aloft object prefabricated compound assembled suit pile foundation comprises a bottom layer reinforced concrete prefabricated piece provided with a plurality of casing pipes with threads; a thread fixing piece is installed in each casing pipe; the multiple thread fixing pieces are sequentially provided with a plurality of inorganic cementitious mixture tamping layers, middle reinforced concrete prefabricated pieces and top reinforced concrete prefabricated pieces from bottom to top, and the inorganic cementitious mixture tamping layers, the middle reinforced concrete prefabricated pieces and the top reinforced concrete prefabricated pieces are installed at intervals; strengthening thread fixing pieces are arranged between the top reinforced concrete prefabricated pieces and the middle reinforced concrete prefabricated pieces on the uppermost layer; the top reinforced concrete prefabricated pieces are provided with fasteners used for fixing the thread fixing pieces and the strengthening thread fixing pieces; rib rings and rib plates are arranged in all the inorganic cementitious mixture tamping layers or only rib plates are arranged in all the inorganic cementitious mixture tamping layers; and the upper side and the lower side of the first inorganic cementitious mixture tamping layer are each provided with pure lime or a pure cement layer. The construction process is simple and convenient, prefabricated suits are modularized and factorized, the construction period is substantially shortened, the construction cost is substantially reduced, and low carbon and environmental protection are achieved.
Description
Technical field
The present invention relates to a kind of pile foundation, particularly relate to a kind of steel and tower thing prefabricated complex group assembling kit stake
Basis and preparation method thereof.
Background technology
The steel thing that towers is a kind of utility model steel tower, few with specious floor space, cost performance high and
Used by vast construction unit, such as communication apparatus signal tower, electric power transmission tower, large-scale street lamp and height
Speed highway sign board is applied, and owing to using traditional handicraft and method for designing, basis and the pedestal of tower are adopted more
With cast-in-situ steel reinforced concrete bored concrete pile or raft foundation, whole construction period about 35 days, in city or main
Arterial highway is bigger owing to long construction period affects aspect, it has also become the bottleneck of such project under construction and a difficult problem.
Summary of the invention
The present invention is to solve above-mentioned technical problem, it is provided that a kind of steel towers thing prefabricated complex group encapsulation
Part pile foundation and preparation method thereof, uses prefabricated external member Assembling and welding, and work progress is simple and convenient,
Prefabricated external member modularity, batch production, construction period significantly shortens, and construction cost is greatly reduced, low carbocyclic ring
Protect.
The present invention is to be achieved through the following technical solutions:
A kind of steel towers thing prefabricated complex group assembling kit pile foundation, including being embedded in installing hole bottom centre
The bottom layer of the reinforcing steel precast concrete of position, bottom layer of the reinforcing steel precast concrete is vertically provided with multiple band spiral shell
The antiseptic and rustproof sleeve pipe of stricture of vagina, is mounted on antiseptic and rustproof threaded fasteners, multiple spiral shells in each sleeve pipe
From bottom to top, the first inorganic gel mixture compacting layer it is sequentially installed with, for fixing on stricture of vagina fixture
And the first middle reinforced concrete precast member of strengthened thread fixture vertical rigidity, the second inorganic gel mix
Compound compacting layer, the second middle reinforced concrete precast member, the 3rd inorganic gel mixture compacting layer and
Top rebars precast concrete, top rebars precast concrete and the second middle armored concrete are prefabricated
It is additionally provided with the antiseptic and rustproof strengthened thread through the 3rd inorganic gel mixture compacting layer between part to fix
Part, top rebars precast concrete is provided with and fixes for fixing threaded fasteners and strengthened thread
The antiseptic and rustproof securing member of part, the first inorganic gel mixture compacting layer and the second inorganic gel mix
Thing compacting layer is equipped with gilled rings and floor, the 3rd inorganic gel mixture compacting layer is provided with floor, the
One inorganic gel mixture compacting layer be equipped with pure white ash or pure water mud layer, wherein, bottom layer of the reinforcing steel up and down
Precast concrete, the first middle reinforced concrete precast member, the second middle reinforced concrete precast member and
Top rebars precast concrete is the circular reinforced concrete precast member of a diameter of 1m～3m, bottom
The thickness of reinforced concrete precast member and top rebars precast concrete is 100～3000mm, in first
Between the thickness of reinforced concrete precast member and the second middle reinforced concrete precast member be 100～2000mm.
The threaded sleeve pipe of at least six is uniformly offered on described bottom layer of the reinforcing steel precast concrete, and
Multiple sleeve pipes are along central point.
12 threaded sleeve pipes are uniformly offered on described bottom layer of the reinforcing steel precast concrete, and many
Individual sleeve pipe is along central point.
Described threaded fasteners, strengthened thread fixture are the screw rod that radius is different, and gilled rings is reinforced steel bar ring,
Floor is steel plate dish.
Along many in the first described inorganic gel mixture compacting layer and the second inorganic gel mixture compacting layer
Individual threaded fasteners outer ring is repeated in being provided with two reinforced steel bar rings and a reinforcing bar dish, and the 3rd inorganic gel is mixed
Compound compacting layer is provided with multiple reinforcing bar dish along multiple threaded fasteners outer rings.
Reinforced concrete precast member includes floor, lower floor, the double-deck netted steel bar layer in bottom, top pair
Layer steel mesh reinforcement layer, steel reinforcement cage and sleeve pipe；Vertically it is fixed with many between described upper floor and lower floor
Individual antiseptic and rustproof sleeve pipe, casing shoe is provided with the double-deck netted steel bar layer in bottom, and cannula tip is provided with
The double-deck netted steel bar layer in top, is provided with between the double-deck netted steel bar layer of the double-deck netted steel bar layer in top and bottom
It is coated on the steel reinforcement cage of set outer tube layer.
A kind of steel based on described pile foundation towers thing prefabricated complex group assembling kit pile foundation making side
Method, comprises the following steps:
1) every at the smooth bottom layer of the reinforcing steel precast concrete being positioned at installing hole bottom centre position
Individual sleeve pipe all fixedly mounts threaded fasteners, and compacting compacting around bottom layer of the reinforcing steel precast concrete
The inorganic gel mixture that coefficient is more than or equal to 0.94 and unit weight is not less than 18KN；
2) levelling to bottom layer of the reinforcing steel precast concrete and inorganic gel mixture by level indicator, then lay
The pure white ash of 30mm thickness or striaght cement, and the most levelling；
3) the first inorganic gel mixture is laid on pure white ash after levelling or striaght cement, and the most levelling；
And along interval, multiple threaded fasteners outer rings, multiple gilled rings and multiple are installed in the first inorganic gel mixture
Floor, then installs the pure white ash of 20mm or striaght cement and successively on the first inorganic gel mixture top
One middle reinforced concrete precast member；
4) on the first middle reinforced concrete precast member, lay the second inorganic gel mixture, and again look for
Flat；And in the second inorganic gel mixture along multiple threaded fasteners outer rings interval install multiple gilled rings and
Multiple floors, then install the second middle reinforced concrete precast member on the second inorganic gel mixture top；
5) strengthened thread fixture is installed on the second middle reinforced concrete precast member, at the second middle steel
The 3rd inorganic gel mixture is laid on reinforced concrete prefabricated component, and the most levelling；And in the 3rd inorganic glue
Solidifying mixture installs multiple floors, then at the 3rd inorganic gel along interval, multiple threaded fasteners outer rings
Top rebars precast concrete is installed on mixture top；Then pacify on top rebars precast concrete
Dress is for fixing threaded fasteners and the securing member of strengthened thread fixture.
Bottom layer of the reinforcing steel precast concrete, the first middle reinforced concrete precast member, the second middle reinforcing bar are mixed
Solidifying soil prefabricated component and the preparation method of top rebars precast concrete:
1) by threaded sleeve pipe through upper floor and lower floor, then by upper floor, lower floor respectively with
Sleeve pipe welds；
2) in step 1) welded reinforcement cage on the basis of the component that formed, the double-deck netted steel bar layer in top and
The double-deck netted steel bar layer in bottom forms reinforced concrete precast member cage bone；
3) reinforced concrete precast member cage bone is put in precast concrete mould, fill rammed concrete
Form reinforced concrete precast member；
In step 1) before the method also include:
1) bottom layer of the reinforcing steel precast concrete is lifted to installing hole bottom centre position, and ensure bottom steel
The flatness of reinforced concrete prefabricated component.
Described step 3) particularly as follows:
Lay two step the first inorganic gel mixtures on pure white ash after levelling or striaght cement, and again look for
Flat；After levelling, smooth for gilled rings is inserted in bottom multiple threaded fasteners, is directed at bottom layer of the reinforcing steel coagulation
It is welded and fixed after soil prefabricated component；Then on gilled rings, lay the first inorganic gel mixture in two steps,
And the most levelling, levelling after more smooth for another gilled rings is inserted in multiple threaded fasteners, and carry out
It is welded and fixed；The first inorganic gel mixture is laid again in two steps on another gilled rings, and the most levelling；
Again smooth for floor is inserted in multiple threaded fasteners after levelling, and is welded and fixed；More than repetition
Step；Then the pure white ash of 20mm or striaght cement and are installed successively on the first inorganic gel mixture top
One middle reinforced concrete precast member, and ensure that each sleeve pipe of the first middle reinforced concrete precast member divides
Dui Qi not be inserted in multiple threaded fasteners；Wherein, the thickness of a step is 150mm；
Step 4) particularly as follows:
First middle reinforced concrete precast member lays two step the second inorganic gel mixtures, and again
Levelling；By smooth being inserted in multiple threaded fasteners of gilled rings after levelling, it is directed at bottom layer of the reinforcing steel coagulation
It is welded and fixed after soil prefabricated component；Then on gilled rings, lay the second inorganic gel mixture in two steps,
And the most levelling, levelling after more smooth for another gilled rings is inserted in multiple threaded fasteners, and carry out
It is welded and fixed；The second inorganic gel mixture is laid again in two steps on another gilled rings, and the most levelling；
Again smooth for floor is inserted in multiple threaded fasteners after levelling, and is welded and fixed；More than repetition
Step；Then on the second inorganic gel mixture top, the second middle reinforced concrete precast member is installed, and
Ensure that each sleeve pipe of the second middle reinforced concrete precast member aligns respectively and be inserted in multiple threaded fasteners
In；Wherein, the thickness of a step is 150mm；
Step 5) particularly as follows:
At the distance second above 200mm of middle reinforced concrete precast member, A level structure anchor adhesive is noted
Enter the centre bore of the second middle reinforced concrete precast member, and in centre bore, be screwed into 300mm install and add
Strong threaded fasteners, then lays step a 3rd inorganic gel mixture, and levelling；By a floor pair
Steadily call in bottom after accurate multiple threaded fasteners and strengthened thread fixture to be welded and fixed；Then exist
The 3rd inorganic gel mixture is laid in two steps on floor, and the most levelling；The most again by a floor
Steadily call in bottom after being directed at multiple threaded fasteners and strengthened thread fixture to be welded and fixed, then
Floor is laid the 3rd inorganic gel mixture in two steps, and the most levelling, repeatedly this step；
Then on the floor of upper strata, a point step lays the 3rd inorganic gel mixture, and the most levelling, in triplicate
This step；Then top rebars precast concrete is installed on the top of the 3rd inorganic gel mixture, and
In its sleeve pipe, A level structure anchor adhesive is first injected, on top when installing top rebars precast concrete
Portion's reinforced concrete precast member backing plate installed above, and the multiple threaded fasteners on backing plate and strengthen spiral shell
Installing nut on stricture of vagina fixture and contain pad, wherein, the thickness of a step is 150mm；
Step 1) also include: before threaded fasteners being installed in each sleeve pipe, sleeve pipe injects A
Level structure anchor adhesive, all fixedly mounts threaded fasteners the most again in each sleeve pipe, is wherein screwed
It is 350mm-450mm that part is screwed into the degree of depth.
Described inorganic gel mixture, the first inorganic gel mixture, the second inorganic gel mixture with
And the 3rd inorganic gel mixture be 3: 7 dirt mixtures or 3: 7 soil cement mixtures.
Compared with prior art, the present invention has a following useful technique effect:
The present invention applies prefabricated complex group assembling kit in steel towers thing foundation construction so that construction period
Significantly shortening (on about 35 working days of traditional construction cycle, applies this pile foundation to make the integral construction cycle big
Width shortens needs 1 working day, the reduction of erection time 93%)；Reduce material consumption, cost-effective, reduce construction
Cost about 40%；Low-carbon environment-friendly, energy-saving and cost-reducing, apply this pile foundation to be greatly decreased construction surrounding enviroment
Pollute, demand to concrete and interference to periphery are greatly decreased, are not affected by winter construction；
Technique, operation realize standardization.
Accompanying drawing explanation
Fig. 1 towers thing prefabricated complex group assembling kit pile foundation structure schematic diagram for the steel that the present invention provides；
Fig. 2 towers the thing prefabricated complex group another structural representation of assembling kit pile foundation for the steel that the present invention provides
Figure；
Fig. 3 is the 1-1 profile of Fig. 1；
Fig. 4 is the 2-2 profile of Fig. 1；
Fig. 5 is reinforced concrete precast member structural representation one；
Fig. 6 is reinforced concrete precast member structural representation two.
Wherein, 1 is bottom layer of the reinforcing steel precast concrete；2 is the first middle reinforced concrete precast member；3
For top rebars precast concrete；4 is threaded fasteners；5 is strengthened thread fixture；6 is first
Inorganic gel mixture compacting layer；7 is gilled rings；8 is floor；9 is that the second middle armored concrete is prefabricated
Part；10 is the second inorganic gel mixture compacting layer；11 is the 3rd inorganic gel mixture compacting layer；12
For upper floor；13 is lower floor；14 is the double-deck netted steel bar layer in bottom；15 is top bilayer net-shaped steel
Muscle layer；16 is steel reinforcement cage；17 is sleeve pipe.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, described in be to the present invention
Explanation rather than restriction.
Seeing Fig. 1 to Fig. 4, a kind of steel towers thing prefabricated complex group assembling kit pile foundation, including embedding
In the bottom layer of the reinforcing steel precast concrete 1 of installing hole bottom centre position, bottom layer of the reinforcing steel precast concrete 1
On be vertically provided with multiple threaded antiseptic and rustproof sleeve pipe, each sleeve pipe is mounted on antiseptic and rustproof
Threaded fasteners 4, multiple threaded fasteners 4 are sequentially installed with the first inorganic gel from bottom to top
Mixture is tamped layer 6, is mixed for fixing and strengthened thread fixture 4 vertical rigidity the first middle reinforcing bar
Solidifying soil prefabricated component the 2, second inorganic gel mixture compacting layer the 10, second middle reinforced concrete precast member
9, the 3rd inorganic gel mixture compacting layer 11 and top rebars precast concrete 3, top rebars
It is additionally provided with through the 3rd inorganic glue between precast concrete 3 and the second middle reinforced concrete precast member 9
The antiseptic and rustproof strengthened thread fixture 5 of solidifying mixture compacting layer 11, top rebars precast concrete
The antiseptic and rustproof fastening for fixing threaded fasteners 4 and strengthened thread fixture 5 it is provided with on 3
Part, the first inorganic gel mixture compacting layer 6 and the second inorganic gel mixture compacting layer 10 are all provided with
Having gilled rings 7 and floor 8, be provided with floor 8 in the 3rd inorganic gel mixture compacting layer 11, first is inorganic
Gelling mixture compacting layer 6 be equipped with pure white ash or pure water mud layer, wherein, bottom layer of the reinforcing steel coagulation up and down
Soil prefabricated component 1, first middle reinforced concrete precast member the 2, second middle reinforced concrete precast member 9
With the circular reinforced concrete precast member that top rebars precast concrete 3 is a diameter of 1m～3m,
The thickness of bottom layer of the reinforcing steel precast concrete 1 and top rebars precast concrete 3 is 100～3000mm,
The thickness of the first middle reinforced concrete precast member 2 and the second middle reinforced concrete precast member 9 is
100～2000mm.
Further, described bottom layer of the reinforcing steel precast concrete 1 uniformly offers at least six band spiral shell
The sleeve pipe of stricture of vagina, and multiple sleeve pipe is along central point.
Concrete, described bottom layer of the reinforcing steel precast concrete 1 uniformly offers 12 threaded
Sleeve pipe, and multiple sleeve pipe is along central point, its bearing capacity of do so pile foundation out is high, fixed stably
Fixed；The first described inorganic gel mixture compacting layer 6 and the second inorganic gel mixture compacting layer 10
Middle it is repeated in being provided with two reinforced steel bar rings and a reinforcing bar dish, the 3rd nothing along multiple threaded fasteners 4 outer rings
Machine gelling mixture compacting layer 11 is provided with multiple reinforcing bar dish along multiple threaded fasteners 4 outer rings.
Wherein, described threaded fasteners 4, strengthened thread fixture 5 are the screw rod that radius is different, rib
Ring 7 is reinforced steel bar ring, and floor 8 is steel plate dish.Owing to the requirement to support force at top is high, therefore on top
It is additionally provided with strengthened thread between portion's reinforced concrete precast member 3 and the second inorganic gel mixture compacting layer 10
Fixture 5, further improves by arranging the strengthened thread fixture 5 of large radius and ensure that whole
The vertical rigidity of pile foundation.
It should be noted that reinforced concrete precast member and each prefabricated external member all use multiple reinforcing bar and mix
Solidifying soil makes.
Concrete, see Fig. 5-Fig. 6, reinforced concrete precast member include floor 12, lower floor 13,
The double-deck netted steel bar layer 14 in bottom, the double-deck netted steel bar layer 15 in top, steel reinforcement cage 16 and sleeve pipe 17；Institute
Multiple antiseptic and rustproof sleeve pipe 17, sleeve pipe vertically it is fixed with between upper floor 12 and the lower floor 13 stated
17 bottoms are provided with the double-deck netted steel bar layer 14 in bottom, and sleeve pipe 17 top is provided with top bilayer net-shaped steel
Muscle layer 15, is provided with between the double-deck netted steel bar layer 14 of the double-deck netted steel bar layer 15 in top and bottom and is coated on
The steel reinforcement cage 16 of sleeve pipe 17 outer layer.
Seeing Fig. 2, a kind of steel based on pile foundation described above towers thing prefabricated complex group assembling kit
Pile foundation manufacture method, comprises the following steps:
1) bottom layer of the reinforcing steel precast concrete is lifted to installing hole bottom centre position, and ensure bottom steel
The flatness of reinforced concrete prefabricated component.
2) in each sleeve pipe of bottom layer of the reinforcing steel precast concrete, threaded fasteners is all fixedly mounted, and
More than or equal to 0.94 and unit weight is not less than 18KN to tamp compacting factor around bottom layer of the reinforcing steel precast concrete
Inorganic gel mixture.Wherein, before threaded fasteners being installed in each sleeve pipe, note in sleeve pipe
Enter A level structure anchor adhesive, in each sleeve pipe, all fixedly mount threaded fasteners, wherein screw thread the most again
It is 350mm-450mm that fixture is screwed into the degree of depth.
3) levelling to bottom layer of the reinforcing steel precast concrete and inorganic gel mixture by level indicator, then lay
The pure white ash of 30mm thickness or striaght cement, and the most levelling.
4) two step the first inorganic gel mixtures are laid on pure white ash after levelling or striaght cement, and again
Levelling；Being inserted in bottom multiple threaded fasteners by smooth for gilled rings after levelling, alignment bottom layer of the reinforcing steel mixes
It is welded and fixed after solidifying soil prefabricated component；Then on gilled rings, lay the first inorganic gel mixture in two steps,
And the most levelling, levelling after more smooth for another gilled rings is inserted in multiple threaded fasteners, and carry out
It is welded and fixed；The first inorganic gel mixture is laid again in two steps on another gilled rings, and the most levelling；
Again smooth for floor is inserted in multiple threaded fasteners after levelling, and is welded and fixed；More than repetition
Step；Then the pure white ash of 20mm or striaght cement and are installed successively on the first inorganic gel mixture top
One middle reinforced concrete precast member 2, and ensure each set of the first middle reinforced concrete precast member 2
Pipe aligns respectively and is inserted in multiple threaded fasteners 4；Wherein, the thickness of a step is 150mm.
5) on the first middle reinforced concrete precast member 2, two step the second inorganic gel mixtures are laid, and
The most levelling；By smooth being inserted in multiple threaded fasteners of gilled rings after levelling, it is directed at bottom layer of the reinforcing steel
It is welded and fixed after precast concrete；Then on gilled rings, lay the second inorganic gel mix in two steps
Thing, and the most levelling, levelling after more smooth for another gilled rings is inserted in multiple threaded fasteners, and
It is welded and fixed；The second inorganic gel mixture is laid again in two steps on another gilled rings, and again
Levelling；Again smooth for floor is inserted in multiple threaded fasteners after levelling, and is welded and fixed；Weight
Multiple above step；Then on the first inorganic gel mixture top, the second middle armored concrete is installed prefabricated
Part 9, and ensure that each sleeve pipe of the second middle reinforced concrete precast member 2 aligns respectively and be inserted in multiple spiral shell
In stricture of vagina fixture 4；Wherein, the thickness of a step is 150mm.
6) at distance second middle reinforced concrete precast member more than 9 200mm, A level structure is anchored
Glue injects the centre bore of the second middle reinforced concrete precast member 9, and is screwed into 300mm in centre bore
Strengthened thread fixture 5 is installed, then lays step a 3rd inorganic gel mixture, and levelling；By one
Individual floor is steadily called in bottom and is welded after being directed at multiple threaded fasteners 4 and strengthened thread fixture 5
Fixing；Then on floor, lay the 3rd inorganic gel mixture in two steps, and the most levelling；The most again
Secondary floor is directed at multiple threaded fasteners 4 and strengthened thread fixture 5 after steadily call in bottom and enter
Row is welded and fixed, and then lays the 3rd inorganic gel mixture on floor in two steps, and the most levelling,
Repeatedly this step；Then point step laying a 3rd inorganic gel mixture on the floor of upper strata, and again
Secondary levelling, this step in triplicate；Then top rebars is installed on the top of the 3rd inorganic gel mixture
Precast concrete 3, and first inject in its sleeve pipe when installing top rebars precast concrete 3
A level structure anchor adhesive, at top rebars precast concrete 3 backing plate installed above, and on backing plate
Nut is installed containing pad, wherein, the thickness of a step in multiple threaded fasteners 4 and strengthened thread fixture 5
Degree is 150mm.
Wherein, described inorganic gel mixture, the first inorganic gel mixture, the second inorganic gel are mixed
Compound and dirt mixture that the 3rd inorganic gel mixture is 3: 7 or the soil cement mixture of 3: 7.
Further, bottom layer of the reinforcing steel precast concrete, the first middle reinforced concrete precast member, second
Middle reinforced concrete precast member and the preparation method of top rebars precast concrete:
1) by threaded sleeve pipe 17 through upper floor 12 and lower floor 13, then by upper floor 12,
Lower floor 13 welds with sleeve pipe 17 respectively；
2) in step 1) welded reinforcement cage 16, the double-deck netted steel bar layer in top on the basis of the component that formed
15 and the double-deck netted steel bar layer 14 in bottom form reinforced concrete precast member cage bone；
3) reinforced concrete precast member cage bone is put in precast concrete mould, fill rammed concrete
Form reinforced concrete precast member.
Material explanation in the present invention:
Bottom layer of the reinforcing steel precast concrete in the present invention, the first middle reinforced concrete precast member, second
Middle reinforced concrete precast member and top rebars precast concrete, in material be: concrete
Being numbered C40, reinforcing bar is grade III steel, and material all should meet corresponding code requirement；
Screw rod uses round steel: 45# high intensity carbon structural steels, nut hardness level is 8.8.Before steel are marched into the arena
Antiseptic and rustproof process should be carried out and meet design and related specifications requirement.
It should be noted that concrete label, reinforcing bar model and thickness for precast concrete can be adjusted
Whole, 3: 7 dirt mixtures or 3: 7 soil cement mixtures can use other Binder Materials；Screw diameter can
To tune up；Prefabricated components are possible with other shapes such as square or rhombus.
The design principle of the present invention:
1. make bottom layer of the reinforcing steel precast concrete, by 12 (particular number should design and become) reinforcing bar spiral shells
Bar is screwed in bottom layer of the reinforcing steel precast concrete, is screwed into the degree of depth and is specifically shown in design requirement；This bottom layer of the reinforcing steel mixes
Solidifying soil prefabricated component is equivalent to base and forms build-in point, by screw rod fixation；
2., after screw rod fixation, tamp 3: 7 dirt mixs at bottom layer of the reinforcing steel precast concrete higher slice
Thing or 3: 7 soil cement mixtures, compacted thickness is generally 1.5～about 2m；Degree of compaction and unit weight are intended to reach
To design requirement；In 3: 7 dirt mixtures or 3: 7 soil cement mixture work progress, every two steps set
Put gilled rings or floor, for standing screw and reinforcement screw rod vertical rigidity；This region arranges and makes 3: 7 dirt
Mixture or 3: 7 soil cement mixtures serve interconnection function；
3. after first area 3: 7 dirt mixture or 3: 7 soil cement mixtures are constructed, by first
Between reinforced concrete precast member be inserted in screw rod, this prefabricated external member is in order to increase the vertical rigidity in whole region；
4. construction second area 3: 7 dirt mixture or 3: 7 soil cement mixtures, work progress and effect are shown in
2nd step；
5. top rebars precast concrete is inserted in screw rod, then uses bolt fixation, construct complete；
Shown in the structure chart See Figure 2 of the most whole pile body:
The Specific construction technique of the present invention sees Fig. 2:
Wherein, F1 component is bottom layer of the reinforcing steel precast concrete 1；F2 component is 12 a diameter of 36mm
Screw rod；F3, F4 are reinforced steel bar ring；F5 is steel plate dish；F6, F7 are reinforced steel bar ring；F8 is steel plate dish；
F9 is reinforced steel bar ring；F10 is the first middle reinforced concrete precast member 2；F11, F12 are reinforced steel bar ring；F13
For steel plate dish；F14, F15 are reinforced steel bar ring；F16 is steel plate dish；F17 is the second middle armored concrete
Prefabricated component；F18～F24 is steel plate dish；F25 is 50 screw rods；F26 is top rebars precast concrete；
F27 is backing plate；F28 is that 50 nuts are containing pad；F29 is that 36 nuts are containing pad；F30 be pure white ash or
Striaght cement；First inorganic gel mixture compacting layer is first area；Second inorganic gel mixture compacting
Layer is second area；3rd inorganic gel mixture compacting layer is the 3rd region.
1. preparation of construction
Survey data with passing through after entering job site, design drawing determines arrangement and method for construction, enters workmen
Row safety measure and technical measures are told somebody what one's real intentions are, to the clear and definite dangerous spot of workmen and the precautionary measures.Job site
Smooth location, determines job site scope, carry out pinpointing, levelling, measurement, unwrapping wire, electric adjustable is installed
Fortune support, after checking that support firmly installs, continue power supply unit, checks that power supply unit is for defeated safety.Right
Multiple prefabricated external member construction hoistings order is numbered.
2. pore-forming
1. it is ensured that pore-forming round dot and design drawing pile center's point deviation are not more than 50mm (reference during pore-forming
" building pile foundation specification " relevant criterion), the every 300mm of hand digging, once correct.
2. safety event during pore-forming should refer to the requirement of " technical code for building pile foundation " relevant corresponding safety；
3. tackle hole wall after pore-forming completes and carry out smooth, check whether hole wall has and loosen or abnormal phenomena, enter
Dangerous spot is processed by row hole wall construction of prevention work (seeing existing " technical code for building pile foundation ") in time；
4. measure hole depth the most qualified, measure qualified after, carry out each 15 centimeter of 3: the 7 dirt mix of two steps
Thing or the compacting of 3: 7 soil cement mixtures, compacted coefficient 0.94 (is wanted with reference to " technical code for building pile foundation "
Ask)；
5. level measurement dirt flatness, carries out pre-shift meeting view, carries out Analysis about Dangerous Point and make after measurement
Determine solution, all prefabricated external member inspections and numbering are checked.
The lifting of the most prefabricated external member
Lifting sequence before and after prefabricated external member is numbered, refers to Fig. 2, F1 component is steadily lifted to hole
Bottom centre position, uses level measurement degree of plainness for structural memer, to a sleeve pipe on F1 component after inspection
Inject A level structure anchor adhesive and rapidly in F2 diameter 36mm screw rod be screwed into F1 component 350mm
(other sleeve pipe ways are by that analogy), by whole for F2 screw rods, below i.e. 12 screw rods, all it is called for short F2,
Check after being all screwed into F1 component.Then point 4 steps by 3: the 7 dirt mixtures of 150mm or
3∶7 soil cement mixtures are tamped around F1 component, it should be noted that 3: 7 dirt mixtures or 3: 7
All being called for short dirt mixture below soil cement mixture, the construction of dirt mixture answers back-filling in layers layering to ram
Real, often step is not to be exceeded 150mm, and virtual resurfacing thickness is less than 250mm, and dirt mixture has been constructed
Its compacting factor rear should be greater than equal to 0.94, and unit weight is no less than 18KN；Remaining matters sees " building
Basic design specification of the foundation " regulation, processed inspection after use level indicator inspection.Use level indicator
Levelling with dirt mixture entirety to component, lay pure white ash or striaght cement F3030mm, level indicator is looked for
Lay two steps each 150mm dirt mixture after flat inspection is errorless, then use level indicator to carry out flatness
Checking, be inserted in bottom F2 by smooth for F3 component, after alignment F1 component, alignment F3 red-label is carried out
Spot welding, butt welding point carries out an acceptance inspection.Lay and tamp 150mm dirt mixture in two steps, wherein, F4,
F6, F7, F9 and F3 with standard with construction method.Level indicator checks flatness, by F5
Component is smooth is inserted in F2, puts into bottom, checks errorless rear laying two steps each 150mm dirt mixture,
F8 Yu F5, with the same construction method of standard, uses level indicator to carry out 20mm after carrying out flatness inspection pure white
Ash or striaght cement are laid.Level indicator is used to carry out flatness inspection, by 12 sleeve pipes pair of F10 component
It is inserted in respectively in F2 component together, hangs in bottom gently, use level indicator to check whether smooth, and to flat
Whole degree is adjusted.Lay in two steps and tamp 150mm dirt mixture, by smooth for F11 component set
Enter F2, put into bottom, check F11 component and dirt integral smoothness, wherein, F11, F12, F14,
F15 construction method same F3, F4, F6, F7, F9 lay.Level indicator is used to check flatness,
It is inserted in F2 by smooth for F13 component, wherein, F13, F16 construction method same F5, F8.Hang in F17,
By its 12 sleeve pipe alignment each screw rods of F2, hang in the above 200mm of distance F17 member bottom section gently, will
A level structure anchor adhesive injects F17 centre bore.Hang in F25 component, distance F17 component 200mm gently
Injecting structure glue, steadily lifts F25 component to F17 member center, is screwed into 300mm, passed examination
After, carry out a step 150mm dirt mixture and lay compacting, use level indicator to check flatness, by F18
In 13 holes alignment F2 and F25 steadily hang in bottom, F2 and F25 is carried out 13 with F18 component
The welding of solder joint.Lay and tamp 150mm dirt mixture the most in two steps, use level indicator inspection
Flatness, F19～F24 construction method is identical with F18, and wherein between F19 to F23, dirt mixture is thick
Degree is two steps, often step thickness 150mm；Between F23～F25, dirt mixture thickness is a step, thick
Degree 150mm.Steadily hang in F26 component, be directed at F2 and F25 screw rod, 200mm bottom distance installation
Place, injects A level structure anchor adhesive in 13 sleeve pipes of F26 component, F26 is directed at F2 and F25
Each screw rod puts into bottom, uses level indicator to check flatness, steadily hangs in F27 component, alignment F2 and
F25 screw rod, puts into F27 bottom, then F28 is screwed into rapidly F25, then is screwed into by F29 successively
F2.The steel beam column wrapping up of leaking outside is wiped with machinery oil.Check and collator, recover job site original appearance,
Construction terminates.
The method have the advantages that
1.. the logical height of original design reinforced concrete structure is arranged, and additionally also sets up 18 not less than 1.9M length
Pre embedded bolt, armored concrete about 22m3；Logical for screw rod height is only arranged by existing design, armored concrete
Structure 3m3, remaining employing 3: 7 dirt mixtures or 3: 7 soil cement mixtures, armored concrete consumption subtracts
Few, construction costs reduces；
2.. original being designed with cast-in-place, needing to wait for 28 day curing period can enter next procedure, uses pre-
Disposably install after can entering job site after structure external member processed, shorten concrete setting and censorship phase,
Shorten construction period；Do not affected by winter construction；
The most original design need to tie up reinforcing bar casting concrete at the scene, and occupied ground pollutes environment and is likely to result in
Disturbing residents, existing design directly lifts welding.Have occupation of land less, pollute less, the feature such as noise is little；
This invention has short construction period in sum, and operating expenses is few, technique process standardization, low carbocyclic ring
Protect, save the advantages such as the energy, important technical innovation and creation should be belonged to.
The present invention applies prefabricated complex group assembling kit in steel towers thing foundation construction so that construction period
Significantly shortening (on about 35 working days of traditional construction cycle, applies this pile foundation to make the integral construction cycle big
Width shortens needs 1 working day, the reduction of erection time 93%)；Reduce material consumption, cost-effective, reduce construction
Cost about 40%；Low-carbon environment-friendly, energy-saving and cost-reducing, apply this pile foundation to be greatly decreased construction surrounding enviroment
Pollute, demand to concrete and interference to periphery are greatly decreased, are not affected by winter construction；
Technique, operation realize standardization.Meanwhile, ensure that whole screw rod perpendicularity by the circular orientation of gilled rings,
And stability and the water proofing property of whole pile foundation is ensure that by the anticorrosion of screw rod and sleeve pipe and bonding.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, the present invention is not restricted to the described embodiments, above-described embodiment and explanation
The principle that the present invention is simply described described in book, without departing from the spirit and scope of the present invention,
The present invention also has various changes and modifications, and these changes and improvements both fall within claimed invention model
In enclosing.Claimed scope is defined by appending claims and equivalent thereof.
Claims (10)
1. a steel towers thing prefabricated complex group assembling kit pile foundation, it is characterised in that include being embedded in
The bottom layer of the reinforcing steel precast concrete (1) of installing hole bottom centre position, bottom layer of the reinforcing steel precast concrete
(1) vertically it is provided with multiple threaded antiseptic and rustproof sleeve pipe on, each sleeve pipe is mounted on anticorrosion and prevents
The threaded fasteners (4) of rust, multiple threaded fasteners are sequentially installed with first on (4) from bottom to top
Inorganic gel mixture compacting layer (6), for the of fixing and strengthened thread fixture (4) vertical rigidity
One middle reinforced concrete precast member (2), the second inorganic gel mixture compacting layer (10), the second centre
Reinforced concrete precast member (9), the 3rd inorganic gel mixture compacting layer (11) and top rebars are mixed
Solidifying soil prefabricated component (3), top rebars precast concrete (3) and the second middle reinforced concrete precast member
(9) the antiseptic and rustproof reinforcement spiral shell through the 3rd inorganic gel mixture compacting layer (11) it is additionally provided with between
Stricture of vagina fixture (5), top rebars precast concrete (3) is provided with for fixing threaded fasteners (4)
And the antiseptic and rustproof securing member of strengthened thread fixture (5), the first inorganic gel mixture compacting layer
(6) and the second inorganic gel mixture compacting layer (10) is equipped with gilled rings (7) and floor (8),
Being provided with floor (8) in 3rd inorganic gel mixture compacting layer (11), the first inorganic gel mixture rams
Real layer (6) be equipped with pure white ash or pure water mud layer up and down, wherein, bottom layer of the reinforcing steel precast concrete (1),
First middle reinforced concrete precast member (2), the second middle reinforced concrete precast member (9) and top steel
Reinforced concrete prefabricated component (3) is the circular reinforced concrete precast member of a diameter of 1m～3m, bottom steel
The thickness of reinforced concrete prefabricated component (1) and top rebars precast concrete (3) is 100～3000mm,
First middle reinforced concrete precast member (2) and the thickness of the second middle reinforced concrete precast member (9)
It is 100～2000mm.
Steel the most according to claim 1 towers thing prefabricated complex group assembling kit pile foundation, its feature
It is, described bottom layer of the reinforcing steel precast concrete (1) uniformly offers the threaded set of at least six
Pipe, and multiple sleeve pipe is along central point.
Steel the most according to claim 2 towers thing prefabricated complex group assembling kit pile foundation, its feature
It is, described bottom layer of the reinforcing steel precast concrete (1) uniformly offers 12 threaded sleeve pipes,
And multiple sleeve pipe is along central point.
Steel the most according to claim 1 towers thing prefabricated complex group assembling kit pile foundation, its feature
Being, described threaded fasteners (4), strengthened thread fixture (5) are the screw rod that radius is different, rib
Ring (7) is reinforced steel bar ring, and floor (8) is steel plate dish.
Steel the most according to claim 4 towers thing prefabricated complex group assembling kit pile foundation, its feature
It is, the first described inorganic gel mixture compacting layer (6) and the second inorganic gel mixture compacting layer
(10) it is repeated in along multiple threaded fasteners (4) outer ring in being provided with two reinforced steel bar rings and a reinforcing bar dish,
3rd inorganic gel mixture compacting layer (11) is provided with multiple steel along multiple threaded fasteners (4) outer ring
Muscle dish.
Steel the most according to claim 1 towers thing prefabricated complex group assembling kit pile foundation, its feature
Being, reinforced concrete precast member includes floor (12), lower floor (13), bottom bilayer net-shaped steel
Muscle layer (14), the double-deck netted steel bar layer (15) in top, steel reinforcement cage (16) and sleeve pipe (17)；Described
Multiple antiseptic and rustproof sleeve pipe (17) vertically it is fixed with between upper floor (12) and lower floor (13),
Sleeve pipe (17) bottom is provided with the double-deck netted steel bar layer (14) in bottom, and sleeve pipe (17) top is provided with top
The double-deck netted steel bar layer (15) in portion, the double-deck netted steel bar layer (15) in top netted steel bar layer double-deck with bottom
(14) steel reinforcement cage (16) being coated on sleeve pipe (17) outer layer it is provided with between.
7. a steel based on the pile foundation described in any one of claim 1-6 towers the prefabricated complex group of thing
Assembling kit pile foundation manufacture method, it is characterised in that comprise the following steps:
1) every at the smooth bottom layer of the reinforcing steel precast concrete being positioned at installing hole bottom centre position
Individual sleeve pipe all fixedly mounts threaded fasteners, and compacting compacting around bottom layer of the reinforcing steel precast concrete
The inorganic gel mixture that coefficient is more than or equal to 0.94 and unit weight is not less than 18KN；
2) levelling to bottom layer of the reinforcing steel precast concrete and inorganic gel mixture by level indicator, then lay
The pure white ash of 30mm thickness or striaght cement, and the most levelling；
3) the first inorganic gel mixture is laid on pure white ash after levelling or striaght cement, and the most levelling；
And in the first inorganic gel mixture along multiple threaded fasteners (4) outer ring interval install multiple gilled rings and
Multiple floors, then install the pure white ash of 20mm or striaght cement successively on the first inorganic gel mixture top
With the first middle reinforced concrete precast member (2)；
4) at the upper second inorganic gel mixture of laying of the first middle reinforced concrete precast member (2), and
The most levelling；And install along interval, multiple threaded fasteners (4) outer ring in the second inorganic gel mixture
Multiple gilled rings and multiple floor, then install the second middle reinforcing bar and mix on the second inorganic gel mixture top
Solidifying soil prefabricated component (9)；
5) at the second middle reinforced concrete precast member (9) upper installation strengthened thread fixture (5),
Second middle reinforced concrete precast member (9) is upper lays the 3rd inorganic gel mixture, and the most levelling；
And along interval, multiple threaded fasteners (4) outer ring, multiple floors are installed in the 3rd inorganic gel mixture,
Then on the 3rd inorganic gel mixture top, top rebars precast concrete (3) is installed；Then on top
The upper installation of portion's reinforced concrete precast member (3) is used for fixing threaded fasteners (4) and strengthened thread is solid
The securing member of locking member (5).
Steel the most according to claim 7 towers thing prefabricated complex group assembling kit pile foundation making side
Method, it is characterised in that
Bottom layer of the reinforcing steel precast concrete, the first middle reinforced concrete precast member, the second middle reinforcing bar are mixed
Solidifying soil prefabricated component and the preparation method of top rebars precast concrete:
1) by threaded sleeve pipe (17) through upper floor (12) and lower floor (13), then by upper
Floor (12), lower floor (13) weld with sleeve pipe (17) respectively；
2) in step 1) welded reinforcement cage (16), top bilayer net-shaped steel on the basis of the component that formed
The double-deck netted steel bar layer (14) of muscle layer (15) and bottom forms reinforced concrete precast member cage bone；
3) reinforced concrete precast member cage bone is put in precast concrete mould, fill rammed concrete
Form reinforced concrete precast member；
In step 1) before the method also include:
1) bottom layer of the reinforcing steel precast concrete is lifted to installing hole bottom centre position, and ensure bottom steel
The flatness of reinforced concrete prefabricated component.
Steel the most according to claim 7 towers thing prefabricated complex group assembling kit pile foundation making side
Method, it is characterised in that described step 3) particularly as follows:
Lay two step the first inorganic gel mixtures on pure white ash after levelling or striaght cement, and again look for
Flat；After levelling, smooth for gilled rings is inserted in bottom multiple threaded fasteners, is directed at bottom layer of the reinforcing steel coagulation
It is welded and fixed after soil prefabricated component；Then on gilled rings, lay the first inorganic gel mixture in two steps,
And the most levelling, levelling after more smooth for another gilled rings is inserted in multiple threaded fasteners, and carry out
It is welded and fixed；The first inorganic gel mixture is laid again in two steps on another gilled rings, and the most levelling；
Again smooth for floor is inserted in multiple threaded fasteners after levelling, and is welded and fixed；More than repetition
Step；Then the pure white ash of 20mm or striaght cement and are installed successively on the first inorganic gel mixture top
One middle reinforced concrete precast member (2), and ensure the every of the first middle reinforced concrete precast member (2)
Individual sleeve pipe aligns respectively and is inserted in multiple threaded fasteners (4)；Wherein, the thickness of a step is 150mm；
Step 4) particularly as follows:
At upper two step the second inorganic gel mixtures of laying of the first middle reinforced concrete precast member (2), and
The most levelling；By smooth being inserted in multiple threaded fasteners of gilled rings after levelling, it is directed at bottom layer of the reinforcing steel
It is welded and fixed after precast concrete；Then on gilled rings, lay the second inorganic gel mix in two steps
Thing, and the most levelling, levelling after more smooth for another gilled rings is inserted in multiple threaded fasteners, and
It is welded and fixed；The second inorganic gel mixture is laid again in two steps on another gilled rings, and again
Levelling；Again smooth for floor is inserted in multiple threaded fasteners after levelling, and is welded and fixed；Weight
Multiple above step；Then on the second inorganic gel mixture top, the second middle armored concrete is installed prefabricated
Part (9), and ensure each sleeve pipe of the second middle reinforced concrete precast member (9) align respectively be inserted in many
In individual threaded fasteners (4)；Wherein, the thickness of a step is 150mm；
Step 5) particularly as follows:
At distance second middle reinforced concrete precast member (9) above 200mm, A level structure is anchored
Glue injects the centre bore of the second middle reinforced concrete precast member (9), and is screwed into 300mm in centre bore
Strengthened thread fixture (5) is installed, then lays step a 3rd inorganic gel mixture, and levelling；Will
Bottom the most steadily called in by one floor multiple threaded fasteners of alignment (4) and strengthened thread fixture (5)
It is welded and fixed；Then on floor, lay the 3rd inorganic gel mixture in two steps, and the most levelling；
The most again a floor is directed at multiple threaded fasteners (4) and strengthened thread fixture (5) is put down afterwards
Surely call in bottom to be welded and fixed, on floor, then lay the 3rd inorganic gel mixture in two steps,
And the most levelling, repeatedly this step；Then on the floor of upper strata, a point step lays the 3rd inorganic gel
Mixture, and the most levelling, this step in triplicate；Then on the top of the 3rd inorganic gel mixture
Install top rebars precast concrete (3), and install top rebars precast concrete (3) time
Its sleeve pipe first injects A level structure anchor adhesive, in top rebars precast concrete (3) top peace
Fill backing plate, and multiple threaded fasteners (4) and the strengthened thread fixture (5) on backing plate is above installed
Nut contains pad, and wherein, the thickness of a step is 150mm；
Step 1) also include: before threaded fasteners being installed in each sleeve pipe, sleeve pipe injects A
Level structure anchor adhesive, all fixedly mounts threaded fasteners the most again in each sleeve pipe, is wherein screwed
It is 350mm-450mm that part is screwed into the degree of depth.
Steel the most according to claim 7 towers thing prefabricated complex group assembling kit pile foundation making side
Method, it is characterised in that described inorganic gel mixture, the first inorganic gel mixture, second inorganic
Gelling mixture and dirt mixture that the 3rd inorganic gel mixture is 3: 7 or the soil cement of 3: 7
Mixture.
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| CN114396192A (en) * | 2021-12-13 | 2022-04-26 | 中国能源建设集团安徽省电力设计院有限公司 | Plug-in type concrete-filled steel tube column base for large power transmission tower and construction method thereof |
| TWI823797B (en) * | 2023-03-13 | 2023-11-21 | 潤弘精密工程事業股份有限公司 | Precast base, method of manufacturing the precast base and method of mounting architectural structure having the precast base |
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