CN106088081A - A kind of pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile - Google Patents
A kind of pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile Download PDFInfo
- Publication number
- CN106088081A CN106088081A CN201610608436.8A CN201610608436A CN106088081A CN 106088081 A CN106088081 A CN 106088081A CN 201610608436 A CN201610608436 A CN 201610608436A CN 106088081 A CN106088081 A CN 106088081A
- Authority
- CN
- China
- Prior art keywords
- pile
- water stopping
- stopping trough
- pile body
- shape support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- E02D5/58—Prestressed concrete piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
- E02D19/185—Joints between sheets constituting the sealing aprons
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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
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1628—Shapes rectangular
- E02D2200/1635—Shapes rectangular made from single element
Abstract
The present invention provides a kind of pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile, pretensioned prestressing centrifugal forming high-strength concrete prefabricated of the present invention hollow I shape support pile several pile body arranged adjacent hypomere are implanted or press-in underground is constituted, and the structure of pile body is: from termination to end tail is longitudinal, symmetry offers water stopping trough；The quantity of every water stopping trough on one side is one (water stopping trough is shaped as rectangle or trapezoidal)；Filling concrete slurry in the water stopping trough of two adjacent concrete bodies unites two into one the sealing hole post of formation；After cement mortar hardening solidification, make concrete precast pile with cementation method bonding one entirety of chain one-tenth, form complete gear soil water sealing structure.Construction cost of the present invention is extremely low, ensure pile body perpendicularity, and pile body projection intensity height is difficult to break up, precast square pile mould simplicity is easy to clean, reliable in quality, safety are high.
Description
Technical field
The present invention relates to a kind of pilework and construction method thereof, particularly a kind of pretensioned prestressing centrifugal forming is high-strength mixed
Solidifying soil precast hollow I shape support pile.
Background technology
Tianjin is one of the fastest area of China's economic growth rate in recent years.Along with State Council is new for strand, Tianjin
District is defined as the 3rd pole that China's economic increases, and large-scale urban construction has been carried out in Tianjin, particularly with subway, large-scale friendship
Logical hinge, high-rise building are the heavy construction of representative, all refer to deep-foundation pit engineering.With Tianjin station transport hub engineering, Yu Jia
The engineering that transport hub, fort engineering, mansion, Tianjin 117 etc. are representative, its foundation depth has been developed to 1125～30m, and Tianjin station is handed over
Logical multi-purpose project foundation ditch maximum cutting depth the most up to JJ32.5m.These deep-foundation pit engineerings have that project scale is huge, environment
Complicated condition, construction requirement relatively high.Efficiency in Buildings in Tianjin Area foundation soil is mutual by depositional environment, Hai Jin, regression and land, sea
The impact of effect, widely distributed have soft layer, and is distributed in typical layering, and the change of soil layer is more complicated, there is also
Multilamellar artesian aquifer is distributed.Under such engineering geology and hydrogeologic condition, in addition under the conditions of complex environment, deep base
There is bigger challenge in hole engineering.
The technical way that pattern foundation pit supporting structure is taked at present mainly has: steel sheet pile supporting, deep-layer stirring supporting, campshed prop up
Protect, diaphram wall supporting, the form such as plate brad supporting.Above-mentioned support form is owing to being affected by construction technology and geologic structure, past
Toward easily causing that pore-forming slip casting is not in place, soil nailing or rockbolt stress do not reach design requirement, injection silicon thickness is not, intensity reaches not
To design requirement, work progress is too big with the difference of design, and design differs greatly with practical situation, and construction costs is high, construction week
Phase is long, and quality and safely controllable property are poor, and safety coefficient is low, wastes resource, the defects such as the impact on surrounding enviroment is bigger of constructing.Special
It not that this drawbacks described above shows especially prominent in soft soil foundation and deep big foundation pit supporting, cannot execute in the area having the most at all
Work.
Summary of the invention
For the technological deficiency of above-mentioned existence, it is an object of the invention to provide a kind of pretensioned prestressing centrifugal forming high-strength
Concrete prefabricated hollow I shape support pile, is beneficial to reduce construction costs 30%, gear soil water resistance raising 30%, construction week
Phase cripetura is short by 40%, and quality and the raising of safely controllable property have good social benefit and promotional value.
For achieving the above object, the present invention provides a kind of pretensioned prestressing hollow work of centrifugal forming high-strength concrete prefabricated
Font support pile, a kind of pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile stake of the present invention
Body arranged adjacent hypomere are implanted or press-in underground is constituted, and the structure of pile body is: from termination to end tail is longitudinal, symmetry offers
Water stopping trough；The quantity of every water stopping trough on one side is one (water stopping trough is shaped as rectangle or trapezoidal)；Sealing at two adjacent concrete bodies
Groove unite two into one formed sealing hole post in filling concrete slurry；After cement mortar hardening solidification, pretensioned prestressing is made to be centrifuged into
Type high-strength concrete prefabricated hollow I shape support pile, with cementation method bonding one entirety of chain one-tenth, only forms complete gear soil
Water-bound.
Pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile, pile body shape can be square
Shape can also be rectangle.
The effect of the present invention is that construction cost is extremely low, ensures pile body perpendicularity, and pile body projection intensity height is difficult to break up mould
Easy easy to clean, reliable in quality, safety height, conformance with standard and the requirement of housing industrialization, save construction cost 30%, execute
The cripetura of work cycle is short by 40%, has good social benefit, economic benefit and promotional value.
Accompanying drawing explanation
Fig. 1 is that the present invention keeps off soil water sealing structure schematic diagram；
Fig. 2 is the single pile body of the present invention (rectangle water stopping trough) schematic cross-section；
Fig. 3 is the single pile body of the present invention (trapezoidal water stopping trough) schematic cross-section；
Fig. 4 is that the present invention keeps off soil water sealing structure lateral cross section (rectangle water stopping trough) schematic diagram；
Fig. 5 is that the present invention keeps off soil water sealing structure lateral cross section (trapezoidal water stopping trough) schematic diagram；
Fig. 6 is that the prefabricated pile body of the present invention adds non-prestressed main muscle framework of steel reinforcement schematic diagram
In figure:
1, concrete prefabricated h pile pile body 2, rectangle water stopping trough 2 ', trapezoidal water stopping trough
3, rectangle sealing hole 3 ', trapezoidal sealing hole 4, cement mortar
5, gear soil water sealing structure 6, non-prestressed main muscle 7, steel reinforcement framework cage
Detailed description of the invention
In conjunction with accompanying drawing, a kind of pretensioned prestressing hollow I shape of centrifugal forming high-strength concrete prefabricated of the present invention is propped up
Fender pile is illustrated.
The present invention opens method prestressed centrifugally molding high-strength concrete prefabricated hollow I shape support pile several pile body 1 next-door neighbour row
Row also hypomere is implanted or press-in underground is constituted, and the structure of pile body 1 is: from termination to end tail is longitudinal, symmetry offers water stopping trough；
The quantity of every water stopping trough on one side is one (water stopping trough is shaped as rectangle 2 and trapezoidal 2 ')；Water stopping trough at two adjacent pile bodies 1 closes
Two be a formation sealing hole (sealing hole shape is rectangle 3 and ladder 3 ') post in filling concrete slurry 4；In cement mortar hardening solidification
After, make concrete precast pile with cementation method bonding one entirety of chain one-tenth, form complete gear soil water sealing structure 5.
The present invention is under prior art conditions, uses piling machinery by pretensioned prestressing centrifugal forming high-strength concrete
Precast hollow I shape support pile pile body is pressed into underground successively by design requirement or utilizes pile-grafting machine to implant underground so that it is next-door neighbour
The water stopping trough 2 of two coincide into a sealing hole, and whole sealing hole forms sealing hole post from top to bottom, then in the post of sealing hole
Filling concrete slurry 4, forms concrete column in making sealing hole post, and this concrete column has blocked seam before and after two adjacent concrete bodies, effectively
Serve sealing effect.Finally after cement mortar 4 hardening solidification, make concrete precast pile with cementation method bonding chain one-tenth one
Entirety, forms complete gear soil water sealing structure 5.
Diaphragm wall of the present invention can be one section, it is also possible to is an enclosure wall closed.At architectural engineering foundation
Reason pattern foundation pit supporting structure, whole foundation ditch just uses the present invention even to realize keeping off soil sealing purpose to continue walled wall.
Precast square pile adds non-prestressed main muscle framework of steel reinforcement schematic diagram as shown in Figure 6, adds the pre-of non-prestressed main muscle
Square pile processed improves the ductility more than 30% of pile body, it is to avoid the phenomenon of pile body cracking.
Claims (3)
1. a pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile is characterized in that, by several elder generations
Open method prestressed centrifugally molding high-strength concrete prefabricated hollow I shape support pile pile body arranged adjacent and hypomere is implanted or press-in
Underground is constituted, and the structure of pile body is: from termination to end tail is longitudinal, symmetry offers water stopping trough；The quantity of every water stopping trough on one side
Be one (water stopping trough be shaped as rectangle and trapezoidal)；Fill out in the water stopping trough of two adjacent pile bodies unites two into one the sealing hole post of formation
Water-filling mud；After cement mortar hardening solidification, make concrete precast pile with cementation method bonding one entirety of chain one-tenth, formed
Whole gear soil water sealing structure.
2. pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile described in claim 1, can be in stake
Symmetrical in body increase nonprestressed reinforcement, improve the ductility more than 30% of pile body, it is to avoid the phenomenon of pile body cracking.
3. pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile, pile body shape described in claim 1
Shape can be that square can also be for rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610608436.8A CN106088081A (en) | 2016-07-25 | 2016-07-25 | A kind of pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610608436.8A CN106088081A (en) | 2016-07-25 | 2016-07-25 | A kind of pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106088081A true CN106088081A (en) | 2016-11-09 |
Family
ID=57479224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610608436.8A Pending CN106088081A (en) | 2016-07-25 | 2016-07-25 | A kind of pretensioned prestressing centrifugal forming high-strength concrete prefabricated hollow I shape support pile |
Country Status (1)
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| CN (1) | CN106088081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938653A (en) * | 2017-12-23 | 2018-04-20 | 天津建城基业集团有限公司 | A kind of chain piling wall slip casting brush wall device of chain concrete |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561315A (en) * | 2012-02-14 | 2012-07-11 | 云南中技管桩有限公司 | Linkage precast pile type underground diaphragm wall |
| CN202482889U (en) * | 2012-02-14 | 2012-10-10 | 云南中技管桩有限公司 | Underground diaphragm wall of interlocked prefabricated pile |
| CN105369799A (en) * | 2015-11-12 | 2016-03-02 | 天津建城基业集团有限公司 | Concrete precast pile of precast pile underground diaphragm wall and construction method of precast pile underground diaphragm wall |
-
2016
- 2016-07-25 CN CN201610608436.8A patent/CN106088081A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561315A (en) * | 2012-02-14 | 2012-07-11 | 云南中技管桩有限公司 | Linkage precast pile type underground diaphragm wall |
| CN202482889U (en) * | 2012-02-14 | 2012-10-10 | 云南中技管桩有限公司 | Underground diaphragm wall of interlocked prefabricated pile |
| CN105369799A (en) * | 2015-11-12 | 2016-03-02 | 天津建城基业集团有限公司 | Concrete precast pile of precast pile underground diaphragm wall and construction method of precast pile underground diaphragm wall |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938653A (en) * | 2017-12-23 | 2018-04-20 | 天津建城基业集团有限公司 | A kind of chain piling wall slip casting brush wall device of chain concrete |
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Application publication date: 20161109 |