CN109989395A - A kind of large-scale storage tank bored concrete pile assembled pile cover and its construction method - Google Patents
A kind of large-scale storage tank bored concrete pile assembled pile cover and its construction method Download PDFInfo
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- CN109989395A CN109989395A CN201910302970.XA CN201910302970A CN109989395A CN 109989395 A CN109989395 A CN 109989395A CN 201910302970 A CN201910302970 A CN 201910302970A CN 109989395 A CN109989395 A CN 109989395A
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- 239000004567 concrete Substances 0.000 title claims abstract description 59
- 238000003860 storage Methods 0.000 title claims abstract description 55
- 238000010276 construction Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000005266 casting Methods 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 79
- 230000003014 reinforcing effect Effects 0.000 claims description 52
- 238000007569 slipcasting Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 claims description 5
- 125000003700 epoxy group Chemical group 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 2
- 210000002435 tendon Anatomy 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 239000011440 grout Substances 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000003949 liquefied natural gas Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000009411 base construction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Classifications
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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
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- 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
- E02D27/38—Foundations for large tanks, e.g. oil tanks
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- 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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- 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
- E02D5/72—Pile shoes
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
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Abstract
The invention discloses a kind of large-scale storage tank bored concrete pile assembled pile cover and its construction methods, the pile cover is prefabricated pile cover, it can be prefabricated in batches during storage tank pile foundation construction, after storage tank pile foundation pile with pile cover lifting group pair, then grouting material is filled up by the reserved grout hole of pile cover bottom by the gap between pile cover and pile crown, the finally casting concrete at the top of pile cover makes pile foundation and pile cover form one.Large-scale storage tank bored concrete pile assembled pile cover disclosed by the invention and its construction method both reduce construction period, avoid the quality that cast-in-place concrete faces and control risk, and greatly simplify construction technique, thereby reduce project cost.
Description
Technical field
The present invention relates to piling Technologies, and in particular to a kind of large-scale storage tank bored concrete pile assembled pile cover and its construction party
Method.
Background technique
With surging for social energy demand, the energy storage strategy in China is increasingly dependent on large-scale oil storage tank, large-scale liquid
Change the basic energy storage facility such as natural gas storage tank.The tank appearance of domestic newly-built all kinds of large-scale storage tanks becomes big thus, tank foundation
The load born is also increasing.In order to weaken the punching effect that storage tank cushion cap is born, large-scale storage tank often uses coagulation
The design scheme of native bored concrete pile dilated diameter pile cover.
Large-section in-situ concrete pile pile cover construction technology traditional at present mainly comprises the steps that firstly, in storage tank bored concrete pile
Construction carries out inter-pile soil excavation after terminating, and pile crown is made to expose earth's surface 1m or more；Then pile crown concrete is abolished with pneumatic pick, exposed
Pile crown reinforcing bar simultaneously uses mechanical sleeves pile extension；Finally, prefabricated pile cover reinforcing bar cage hoisting is in place, it carries out cast in situs and supports
Shield.Traditional scheme process is many and diverse, and inter-pile soil excavates, abolishes the consuming of the processes such as pile crown concrete, pile extension, maintenance needs largely
Duration.Under normal conditions, the LNG tank outer tank construction period of 160,000 sides is 14 months, and wherein pile cover is constructed
Just account for 3 months time.Further, since traditional scheme needs poured in place concrete, the difficulty of quality control is increased, is deposited
In many quality risks.
Summary of the invention
The purpose of the present invention is to provide a kind of large-scale storage tank bored concrete pile assembled pile cover and its construction methods, to solve
Storage tank bored concrete pile pile cover construction period length, complex procedures and quality are controlled risk the problems such as high at present.
The technical solution of the present invention is as follows: a kind of large-scale storage tank bored concrete pile assembled pile cover is provided, for connecting large-scale storage tank
Pile foundation and its cushion cap, including a prefabricated pile cover, the prefabricated pile cover include pile cover top and pile cover lower part, the pile cover top
Middle part offer the pile foundation main reinforcement through-hole for passing through pile foundation main reinforcement, offer in the middle part of the pile cover lower part and be used for and pile crown
The pile crown connecting hole of connection, and the pile foundation main reinforcement through-hole is formed up and down with the pile crown connecting hole through described prefabricated
The outside of inner support hollow part in the middle part of pile cover, the prefabricated pile cover will be under the pile cover top and the pile cover by concrete wall
Portion is connected；Several pile cover main reinforcements are embedded in concrete wall on the outside of the prefabricated pile cover, the pile cover main reinforcement stretches out institute
It states pile cover top and exposes end；The bottom of the pile cover lower part is reserved with several slip casting channels, the slip casting channel with it is described
Pile crown connecting hole is connected；
Wherein, the pile crown connecting hole is for being arranged the adjusting block for adjusting the prefabricated pile cover and pile foundation position；In described
Support hollow part is for wearing pile foundation main reinforcement, and the pile foundation main reinforcement through-hole makes the pile foundation main reinforcement for filling cast-in-place concrete
It is integral with the prefabricated pile hat；The exposed ends of the pile cover main reinforcement, which are used to wear to realization in cushion cap and the anchoring of cushion cap, to be connected
It connects；The slip casting channel is used to inject grouting material to block described in the gap in the adjusting block hole after the adjusting block is arranged and reinforcement
The connection of prefabricated pile cover and the pile foundation.
Preferably, multilayer reinforcing rib layer is vertically preset in the pile cover top, every layer of reinforcing rib layer includes horizontally disposed
Several reinforcing ribs, the both ends of the reinforcing rib are fixedly connected with the pile cover main reinforcement, and several on every layer of reinforcing rib layer
The reinforcing rib transverse and longitudinal is staggeredly through the pile foundation main reinforcement through-hole.
Preferably, the reinforcing rib is drag hook reinforcing bar, and the drag hook at the reinforcing rib both ends is connect with the pile cover main reinforcement；Often
The layer reinforcing rib layer includes two cross reinforcings and two walings, the cross reinforcing with it is described longitudinally reinforced
Muscle vertically overlaps, and lap-joint is located in the pile foundation main reinforcement through-hole.
Preferably, the prefabricated pile cover, the pile foundation main reinforcement through-hole and the pile crown connecting hole are cylindrical body, described pre-
The cross-sectional diameter of pile cover processed, the pile foundation main reinforcement through-hole and the pile crown connecting hole is from small to large successively are as follows: the pile foundation master
The outer diameter of prefabricated pile cover cross section described in the cross-sectional diameter < of pile crown connecting hole described in the cross-sectional diameter < of muscle through-hole.
Preferably, the adjusting block is concrete pad identical with the pile foundation intensity.
The invention also discloses a kind of construction method of large-scale storage tank bored concrete pile assembled pile cover, when storage tank pile foundation pile, is pre-
There are exposed pile foundation main reinforcements, using above-mentioned large-scale storage tank bored concrete pile assembled pile cover, the large-scale storage tank bored concrete pile assembly
The construction method of formula pile cover the following steps are included:
Pile cover is prefabricated: production pile cover main reinforcement and reinforcing rib；It is made in the pile foundation main reinforcement through-hole of PVC material round tube
Template drills to the inner template and installs inner template；In wearing the reinforcing rib in the inner template；Using steel die
Exterior sheathing of the plate as the prefabricated pile cover, and in laying pile cover main reinforcement in the prefabricated pile cover；Reinforcing bar binding, while reserved note
Starch channel；Concreting and maintenance obtain prefabricated pile cover；
Prefabricated pile cover lifting: the lifting prefabricated pile cover is upward through the pile foundation main reinforcement of the pile foundation exposure in described
Support hollow part；In the adjusting block is arranged in the adjusting block hole, the prefabricated pile cover is adjusted in described by the adjusting block
Height and position in pile foundation keep the top surface of the prefabricated pile cover horizontal；
Inject grouting material: Xiang Suoshu slip casting channel inject grouting material, the grouting material along the slip casting channel with it is described
The communicating passage of pile crown connecting hole flows into the pile crown connecting hole, fill the adjusting block and the prefabricated pile cover gap,
Package crosses the pile foundation main reinforcement of the pile crown connecting hole, until grouting material enriches the gap of the entire pile crown connecting hole；
Casting concrete: Xiang Suoshu pile foundation main reinforcement through-hole fill cast-in-place concrete, make the pile foundation main reinforcement with it is described prefabricated
Pile cover forms one.
Preferably, the pile cover is prefabricated carries out simultaneously with the pile foundation construction.
Preferably, the grouting material is epoxy group high performance grouting material.
Preferably, the steel reinforcement cage of the pile crown of the pile foundation is designed using undergauge.
Preferably, the cross-sectional diameter of the storage tank pile foundation is greater than 1 meter, and the storage tank includes oil storage tank, liquefied natural gas
Storage tank or chemical drum.
The beneficial effects of the present invention are:
Large-scale storage tank bored concrete pile assembled pile cover disclosed by the invention is a kind of fabricated prefabricated pile cover, can be in storage tank stake
Base construction period batch is prefabricated, with pile cover lifting group pair after storage tank pile foundation pile, then passes through the reserved grouting of pile cover bottom
Grouting material is filled up the gap between pile cover and pile crown by hole, finally the casting concrete at the top of pile cover, and pile foundation and pile cover is made to form one
Body.It therefore, can without many and diverse processes such as inter-pile soil excavation, broken pile head, pile extension, casts in situs after the completion of storage tank pile foundation construction
Directly finished product pile cover batch is lifted in place, batch slip casting pours in batches.Prefabricated pile cover and pile foundation construction carry out simultaneously,
It is not take up Storage Tank Construction critical path, storage tank construction efficiency can be greatly improved using this scheme, shortened the construction period.Further, since
Fabricated pile cover can begin to prefabricated during pile foundation construction, and the quality of precast concrete can be obvious under normal conditions
Better than cast-in-place concrete structure.Compared to existing pile cover design and construction scheme, large-scale storage tank bored concrete pile disclosed by the invention
Assembled pile cover and its construction method both reduce construction period, avoid the quality that cast-in-place concrete faces and control risk, and pole
Construction technique is simplified greatly, thereby reduces project cost.
In addition, there are also the advantages of part to have by the present invention:
(1) pile cover is processed in precasting yard, and care environments are good, and it is mixed to be conducive to raising concrete construction quality reduction pile cover
Solidifying soil cracking seam, improves structure durability；
(2) prefabricated pile cover uses epoxy group high performance grouting material, structural strength at lifting construction seam；
(3) punching of PVC inner template is convenient, reinforcing rib installation convenience；
(4) function admirable is pressed in the anti-survey of PVC inner template, cheap；
(5) prefabricated pile cover lifting positioning convenience, promotes installation accuracy.
Detailed description of the invention
Fig. 1 is the vertical sectional view for the pile cover that the embodiment of the present invention 1 provides；
Fig. 2 is the top view for the pile cover that the embodiment of the present invention 1 provides；
Fig. 3 is the structural schematic diagram for the PVC inner template that the embodiment of the present invention 1 provides；
Fig. 4 is the connection schematic diagram of the embodiment of the present invention 1 pile cover provided and pile foundation.
Specific embodiment
Embodiment 1
Embodiment 1 provides a kind of large-scale storage tank bored concrete pile assembled pile cover, for connect large-scale storage tank pile foundation 100 and its
Cushion cap is greater than the large-section in-situ concrete pile of 1m suitable for stake diameter, its structure is described in detail below.
With reference to Fig. 1, Fig. 2 and Fig. 4, which includes a prefabricated pile cover 1, prefabricated pile cover 1
Including pile cover top 2 and pile cover lower part 3, the middle part on pile cover top 2 offers pile foundation main reinforcement through-hole 21, the middle part of pile cover lower part 3
Offer the pile crown connecting hole 31 of bottom end opening, and pile foundation main reinforcement through-hole 21 and pile crown connecting hole 31 formed up and down through
The inner support hollow part at prefabricated 1 middle part of pile cover, the outside of prefabricated pile cover 1 is connected pile cover top 2 and pile cover lower part 3 by concrete wall
Integrally；Several pile cover main reinforcements 4 are embedded in the concrete wall in prefabricated 1 outside of pile cover, pile cover main reinforcement 4 stretches out pile cover top 2 simultaneously
Expose end；The bottom of pile cover lower part 3 is reserved with several slip casting channels 5, and slip casting channel 5 is connected with adjusting block hole 31；
Wherein, pile crown connecting hole 31 is used to that the adjusting block 6 for adjusting prefabricated pile cover 1 and 100 position of pile foundation to be arranged；Inner support is hollow
Portion is for wearing pile foundation main reinforcement 7, and pile foundation main reinforcement through-hole 21 makes pile foundation main reinforcement 7 and prefabricated pile cover for filling cast-in-place concrete 8
1 forms one；The exposed ends of pile cover main reinforcement 4 are used to wear to the anchor connection of realization and cushion cap in cushion cap；Slip casting channel 5 is for infusing
Enter grouting material 9 to block the gap of the pile crown connecting hole 31 after adjusting block 6 is arranged and reinforce the company of prefabricated pile cover 1 and pile foundation 100
It connects.
Multilayer reinforcing rib layer, every layer of reinforcing rib layer are vertically preset with as a kind of specific embodiment, in pile cover top 2
Including horizontally disposed several reinforcing ribs 22, the both ends of reinforcing rib 22 are fixedly connected with pile cover main reinforcement 4, and on every layer of reinforcing rib
Several 22 transverse and longitudinals of reinforcing rib are staggeredly through pile foundation main reinforcement through-hole 21.
Further, reinforcing rib 22 is drag hook reinforcing bar, and the drag hook at 22 both ends of reinforcing rib is connect with pile cover main reinforcement 4；Every row adds
Strengthening tendons layer includes two cross reinforcings and two walings, and cross reinforcing is vertical with waling to be overlapped to be formed
The reinforcing rib 22 of " well " font, and lap-joint is located in pile foundation main reinforcement through-hole 21.
Preferably, prefabricated pile cover 1, pile foundation main reinforcement through-hole 21 and pile crown connecting hole 31 are cylindrical body, prefabricated pile cover 1, stake
The cross-sectional diameter of base main reinforcement through-hole 21 and pile crown connecting hole 31 is from small to large successively are as follows: the cross section of pile foundation main reinforcement through-hole 21
The outer diameter of prefabricated 1 cross section of pile cover the cross-sectional diameter < of diameter < pile crown connecting hole 31.Specifically, pile cover outer diameter is generally
1.8m, the outer diameter of stake are about 1.2m, and the diameter of pile crown connecting hole 31 is 1.3m, and the diameter of pile foundation main reinforcement through-hole 21 is 0.8m left
The right side, above-mentioned aperture are the diameter in hole, and can be adjusted with project difference.
In order to improve the installation accuracy for adjusting prefabricated pile cover 1, when prefabricated pile cover lifting placement top is positioned, adjusting block
Adjusting block 6 is arranged in hole 31, which adjusts prefabricated pile cover 1 and 100 position of pile foundation, and adjusting block 6 is and pile foundation the last 100
Spend identical concrete pad.
Since pile cover top 2 needs to wear reinforcing rib 22, in order to guarantee that the enough intensity of pile foundation main reinforcement through-hole 21 resists coagulation
Native lateral pressure and facilitating drilling, the molding on pile cover top 2 is needed by inner template 10, i.e., before prefabricated pile cover 1 pours, general
The inner template 10 is set to the inside of prefabricated pile cover 1, at the same using reusable steel template as pile cover it is prefabricated outside
Template and use PVC material round tube are as inner template 10, in this way, being also convenient for installing the reinforcing rib 22 of laterally " well " font.
With reference to Fig. 3, inner template 10 is cylindrical pipe, Ying Caiyong PVC material hard tube, and has enough compression strength, and
PVC material hard tube should facilitate punching and install the reinforcing rib 22 of " well " font.
Embodiment 2
Embodiment 1 provides a kind of construction method of large-scale storage tank bored concrete pile assembled pile cover, and when storage tank 100 pile of pile foundation is pre-
There are exposed pile foundation main reinforcements 7, and using the large-scale storage tank bored concrete pile assembled pile cover of embodiment 1, construction method includes following step
It is rapid:
Pile cover is prefabricated: production pile cover main reinforcement 4 and reinforcing rib 22；Using PVC material round tube production pile foundation main reinforcement through-hole 21
Inner template 10 drills to inner template 10 and installs inner template 10；In wearing reinforcing rib 22 in inner template 10；Using steel die
Exterior sheathing of the plate as prefabricated pile cover 1, and in laying pile cover main reinforcement 4 in prefabricated pile cover 1；Reinforcing bar binding, while reserved slip casting is logical
Road 5；Concreting and maintenance obtain prefabricated pile cover 1；
Prefabricated pile cover lifting: hoisting prefabricated pile cover 1 makes the pile foundation main reinforcement 7 of the exposure of pile foundation 100 be upward through inner support hollow
Portion；In in pile crown connecting hole 31 be arranged adjusting block 6, by adjusting block 6 adjust prefabricated pile cover 1 in pile foundation 100 height and position
It sets, keeps the top surface of prefabricated pile cover 1 horizontal, complete the accurate positioning of prefabricated pile cover 1；
It injects grouting material: injecting grouting material 9 to slip casting channel 5, grouting material 9 is along slip casting channel 5 and pile crown connecting hole 31
Communicating passage flow into pile crown connecting hole 31, the gap of filling adjusting block 6 and prefabricated pile cover 1, package cross pile crown connecting hole
31 pile foundation main reinforcement 7, until grouting material enriches the gap of entire pile crown connecting hole 31；
Casting concrete: to the filling of pile foundation main reinforcement through-hole 21 with 100 concrete strength of pile foundation with the cast-in-place concrete of label
8, while remaining area is poured using the cast-in-place concrete 8, so that pile foundation main reinforcement 7 and prefabricated pile cover 1 is formed one, after maintenance
Terminate whole processes, bearing platform construction can be carried out.
Preferably, pile cover is prefabricated carries out simultaneously with the construction of pile foundation 100.
Preferably, grouting material 9 is epoxy group high performance grouting material.
Preferably, the steel reinforcement cage of the pile crown of pile foundation 100 is designed using undergauge, specifically, the pile crown region of pile foundation 100
Steel reinforcement cage diameter should be less than the minimum diameter of prefabricated pile cover 1.For this purpose, pile foundation main reinforcement 7 is bent at the top of pile crown steel reinforcement cage, so as to stake
Base main reinforcement 7 can pass through the inner support hollow part and reinforcing rib 22 of prefabricated pile cover 1.
Preferably, the cross-sectional diameter of storage tank pile foundation 100 be greater than 1 meter, storage tank include oil storage tank, LNG tank or
Chemical drum.
Preferably, the hardening that storage tank region place should be completed after the completion of pile cover prefabricated period, pile foundation construction is levelling.
Preferably, when hoisting prefabricated pile cover 1, prefabricated 1 finished product of pile cover is installed using truck crane or tower crane by place, mistake in place
The position of pile cover and pile foundation is adjusted in journey using adjusting block 6.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of large-scale storage tank bored concrete pile assembled pile cover, which is characterized in that including a prefabricated pile cover (1), the prefabricated pile cover
It (1) include pile cover top (2) and pile cover lower part (3),
Pile foundation main reinforcement through-hole (21) is offered in the middle part of the pile cover top (2), offers bottom in the middle part of the pile cover lower part (3)
The pile crown connecting hole (31) of end opening, and the pile foundation main reinforcement through-hole (21) is formed up and down with the pile crown connecting hole (31)
The outside of inner support hollow part through in the middle part of the prefabricated pile cover (1), the prefabricated pile cover (1) will be described by concrete wall
Pile cover top (2) and the pile cover lower part (3) are connected；
Several pile cover main reinforcements (4) are embedded in concrete wall on the outside of the prefabricated pile cover (1), the pile cover main reinforcement (4) is stretched out
The pile cover top (2) simultaneously exposes end；
The bottom of the pile cover lower part (3) is reserved with several slip casting channels (5), and the slip casting channel (5) connect with the pile crown
Hole (31) is connected；
Wherein, the pile crown connecting hole (31) is for being arranged the adjusting block for adjusting the prefabricated pile cover (1) and pile foundation (100) position
(6)；
The inner support hollow part is for wearing pile foundation main reinforcement (7), and the pile foundation main reinforcement through-hole (21) is for filling cast-in-place coagulation
Native (8) make the pile foundation main reinforcement (7) and the prefabricated pile cover (1) form one；
The exposed ends of the pile cover main reinforcement (4) are used to wear to the anchor connection of realization and cushion cap in cushion cap；
The slip casting channel (5) is used to inject grouting material (9) to block the pile crown connecting hole (31) after the adjusting block (6) is arranged
Gap and reinforce the connection of the prefabricated pile cover (1) and the pile foundation (100).
2. large-scale storage tank bored concrete pile assembled pile cover as described in claim 1, which is characterized in that
Vertically be preset with multilayer reinforcing rib layer in the pile cover top (2), every layer of reinforcing rib layer include it is horizontally disposed several plus
Strengthening tendons (22), the both ends of the reinforcing rib (22) are fixedly connected with the pile cover main reinforcement (4), and several on every layer of reinforcing rib
Reinforcing rib (22) transverse and longitudinal is staggeredly through the pile foundation main reinforcement through-hole (21).
3. large-scale storage tank bored concrete pile assembled pile cover as described in claim 1, which is characterized in that
The reinforcing rib (22) is drag hook reinforcing bar, and the drag hook at reinforcing rib (22) both ends is connect with the pile cover main reinforcement (4)；
Reinforcing rib layer described in every row includes two cross reinforcings and two walings, and the cross reinforcing is indulged with described
It is vertically overlapped to reinforcing rib, and lap-joint is located in the pile foundation main reinforcement through-hole (21).
4. large-scale storage tank bored concrete pile assembled pile cover as described in claim 1, which is characterized in that
The prefabricated pile cover (1), the pile foundation main reinforcement through-hole (21) and the pile crown connecting hole (31) are cylindrical body,
The cross-sectional diameter of the prefabricated pile cover (1), the pile foundation main reinforcement through-hole (21) and the pile crown connecting hole (31) from
It is small to arrive greatly successively are as follows: the cross-sectional diameter of pile crown connecting hole (31) described in the cross-sectional diameter < of the pile foundation main reinforcement through-hole (21)
The cross-sectional diameter of prefabricated pile cover (1) outer wall described in <.
5. large-scale storage tank bored concrete pile assembled pile cover as described in claim 1, which is characterized in that
The adjusting block (6) is concrete pad identical with the pile foundation (100) intensity.
6. a kind of construction method of large-scale storage tank bored concrete pile assembled pile cover, when storage tank pile foundation (100) pile, is reserved with exposed
Pile foundation main reinforcement (7), using large-scale storage tank bored concrete pile assembled pile cover as claimed in claim 1 to 5, which is characterized in that
The construction method the following steps are included:
Pile cover is prefabricated: production pile cover main reinforcement (4) and reinforcing rib (22)；The pile foundation main reinforcement through-hole is made using PVC material round tube
(21) inner template (10) drills to the inner template (10) and installs inner template (10)；In the inner template (10)
Wear the reinforcing rib (22)；Exterior sheathing using steel template as the prefabricated pile cover (1), and in the prefabricated pile cover
(1) pile cover main reinforcement (4) are laid in；Reinforcing bar binding, at the same it is reserved slip casting channel (5)；Concreting and maintenance, obtain prefabricated pile
Cap (1)；
Prefabricated pile cover lifting: the lifting prefabricated pile cover (1) is upward through the pile foundation main reinforcement (7) of the pile foundation (100) exposure
The inner support hollow part；In the setting adjusting block (6) in the pile crown connecting hole (31), adjusted by the adjusting block (6)
Height and position on prefabricated pile cover (1) the Yu Suoshu pile foundation (100) keep the top surface of the prefabricated pile cover (1) horizontal, complete
The accurate positioning of prefabricated pile cover (1)；
Inject grouting material: grouting material (9) are injected in Xiang Suoshu slip casting channel (5), and the grouting material (9) is along the slip casting channel
(5) with the communicating passage of the pile crown connecting hole (31) flow into the pile crown connecting hole (31), fill the adjusting block (6) with
The pile foundation main reinforcement (7) of the adjusting block hole (31) is crossed in the gap of the prefabricated pile cover (1), package, until grouting material enrich it is whole
The gap of a pile crown connecting hole (31)；
Casting concrete: Xiang Suoshu pile foundation main reinforcement through-hole (21) fills cast-in-place concrete (8), makes the pile foundation main reinforcement (7) and institute
It states prefabricated pile cover (1) and forms one.
7. the construction method of large-scale storage tank bored concrete pile assembled pile cover as claimed in claim 5, which is characterized in that
The pile cover is prefabricated to construct while carrying out with the pile foundation (100).
8. the construction method of large-scale storage tank bored concrete pile assembled pile cover as claimed in claim 5, which is characterized in that
The grouting material (9) is epoxy group high performance grouting material.
9. the construction method of large-scale storage tank bored concrete pile assembled pile cover as claimed in claim 5, which is characterized in that
The steel reinforcement cage of the pile crown of the pile foundation (100) is designed using undergauge.
10. the construction method of large-scale storage tank bored concrete pile assembled pile cover as described in claim 1, which is characterized in that
The cross-sectional diameter of the storage tank pile foundation (100) be greater than 1 meter, the storage tank include oil storage tank, LNG tank or
Chemical drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302970.XA CN109989395B (en) | 2019-04-16 | 2019-04-16 | Large storage tank filling pile assembled pile cap and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302970.XA CN109989395B (en) | 2019-04-16 | 2019-04-16 | Large storage tank filling pile assembled pile cap and construction method thereof |
Publications (2)
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| CN111236292A (en) * | 2020-03-05 | 2020-06-05 | 安徽省路港工程有限责任公司 | Bridge pile foundation pile head pouring connection steel bar structure and construction method thereof |
| CN110805027B (en) * | 2019-11-14 | 2021-04-16 | 广州市第二市政工程有限公司 | Tubular pile assembly type pile cap and construction method thereof |
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| CN109989395B (en) | 2024-02-06 |
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