CN102444121A - Starlike in-situ concrete pile construction method - Google Patents
Starlike in-situ concrete pile construction method Download PDFInfo
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- CN102444121A CN102444121A CN201110325393XA CN201110325393A CN102444121A CN 102444121 A CN102444121 A CN 102444121A CN 201110325393X A CN201110325393X A CN 201110325393XA CN 201110325393 A CN201110325393 A CN 201110325393A CN 102444121 A CN102444121 A CN 102444121A
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Abstract
The invention discloses a starlike in-situ concrete pile construction method, which includes steps of firstly flatting fields, determining pile positions and taking a vibration pile hammer to the place; secondly, folding valve pile shoes and disposing the same at the specified pile hammering position; starting a vibration head to vibrate downwards so that a starlike steel formwork can be hammered into the soil foundation under the protection of the valve pile shoes and soils at ends of the valve pile shoes can be extruded to soil outside the starlike steel formwork; and thirdly, placing a reinforcing steel bar cage from the upper end of the starlike steel formwork, injecting concrete into the starlike steel formwork from a concrete inlet on the starlike steel formwork; starting the vibration head to compact the concrete in the starlike steel formwork; and finally pulling the starlike steel formwork upwards by a certain height so as to guarantee the lower end of the starlike steel formwork to be lower than the upper surface of the concrete in the starlike steel formwork. The above steps are repeated until the starlike steel formwork is pulled out of the ground and the in-situ concrete pile is formed in the soil foundation. The starlike in-situ concrete pile construction method is simple in construction process, high in operability, convenient in quality control, and bearing capacity of concrete piles formed by the method is high.
Description
Technical field
The invention belongs to the concrete pile construction method technical field, particularly a kind of five-pointed star shape cast-in-situ concrete pile construction method.
Background technology
At present, in the ground foundation engineering field, circular cast-in-situ steel reinforced concrete stake is widely used, and the bearing capacity of circular pile foundation is mainly formed by pile side friction and end resistance.But this circular cast-in-situ steel reinforced concrete stake is very big to reinforcing bar, concrete consumption, and construction cost is high.Improve bearing capacity of pile foundation when how to reduce reinforcing bar, concrete amount and become the long-term problem of being concerned about of researcher.The patent No. is that 01218447.0 " prefabricated X-shaped reinforced concrete pile " and the patent No. are that 201010215965.4 " cast-in-situ X-shaped concrete pile construction method " discloses the X-shaped reinforced concrete pile, and the patent No. is that 01221710.7 " Y shape concrete filling pile " discloses the Y-shaped cast-in-place concrete pile in a kind of cross section.With respect to the circular steel rib concrete pile, under equal bearing capacity of pile foundation, X-shaped and Y shape reinforced concrete pile can be saved a large amount of reinforcing bars, concrete amount.But, because X-shaped and Y shape reinforced concrete pile all are to be transported to the scene again after prefabricated, transportation inconvenience, cost of transportation is high, and preformed pile inside will arrange more reinforcing bar so that lifting brings unnecessary workload to the post-processed of pile.Simultaneously, the stake of X-shaped and Y shape reinforced concrete pile is long generally to be controlled in the 12m, and for darker ground, also needs on-the-spot pile extension, has both increased difficulty of construction, has increased construction costs again.
In addition, reason such as little owing to cast-in-place X-shaped and Y shape reinforced concrete pile open arc radius, that the open arc angle is big, it is serious that cause the driving piles native disturbance of week of process king-pile and all soil zones of tube drawing process king-pile go out phenomenon, thereby influence its practical application effect.
Summary of the invention
The purpose of this invention is to provide a kind of construction technology simple, workable, be convenient to quality control and the high five-pointed star shape cast-in-situ concrete pile construction method of bearing capacity.
For realizing above-mentioned purpose, technical scheme of the present invention is: a kind of five-pointed star shape cast-in-situ concrete pile construction method comprises that step is: (1) leveling place, confirm the stake position, and vibro driver is in place; (2) vibro driver top is provided with vibration head, connects cover plate at the vibration head other end, and the cover plate lower end connects five-pointed star shape punching block, and five-pointed star shape punching block lower end connects the flap valve shoe; (3) the flap valve shoe is closed up, place the pile driving position of appointment; (4) the Vibration on Start-up head vibrates downwards, and five-pointed star shape punching block is squeezed in the ground under the protection of flap valve shoe, and the flap valve shoe end soil body is squeezed in the soil body of the five-pointed star shape punching block outside; (5) put into reinforcing cage from five-pointed star shape punching block port; (6) in five-pointed star shape punching block, inject concrete through the concrete charging aperture on the five-pointed star shape punching block; (7) Vibration on Start-up head vibration is shaken the concrete in the five-pointed star shape punching block closely knit; (8) five-pointed star shape punching block is upwards extracted certain altitude, guarantee that five-pointed star shape punching block lower end is lower than the upper surface of five-pointed star shape punching block inner concrete; (9) circulation step (6) (7) (8) until five-pointed star shape punching block is extracted ground, forms the stake of five-pointed star shape cast-in-situ steel reinforced concrete in ground.
Upwards extract in the said step (8) five-pointed star shape punching block on the speed of pulling out be 0.5-1.5m/min.
The length of said five-pointed star shape punching block is 6-40m.
The cross section of said five-pointed star shape punching block is five-pointed star shape, and five terminations of five-pointed star shape punching block are tack, and the outsourcing circular diameter of five terminations is 0.4-1.0m; The cover plate middle part is provided with circular hole, and reinforcing cage passes circular hole, puts into the cavity of five-pointed star shape punching block; Five-pointed star shape punching block upper end is provided with the concrete charging aperture.
Said flap valve shoe is made up of five single-lobe boots sheets, and every lobe boots sheet is riveted with the termination of five-pointed star shape punching block and the curved portions lower edge between the termination respectively mutually.
The said five-pointed star shape punching block outside is provided with the sign of the observation pile sinking degree of depth.
Said vibration head and cover plate riveted joint, cover plate and the welding of five-pointed star shape punching block, five-pointed star shape punching block and flap valve shoe riveted joint.
Compared with prior art, advantage of the present invention is:
1, the present invention includes step is: (1) leveling place, confirm the stake position, and vibro driver is in place; (2) vibro driver top is provided with vibration head, connects cover plate at the vibration head other end, and the cover plate lower end connects five-pointed star shape punching block, and five-pointed star shape punching block lower end connects the flap valve shoe; (3) the flap valve shoe is closed up, place the pile driving position of appointment; (4) the Vibration on Start-up head vibrates downwards, and five-pointed star shape punching block is squeezed in the ground under the protection of flap valve shoe, and the flap valve shoe end soil body is squeezed in the soil body of the five-pointed star shape punching block outside; (5) put into reinforcing cage from five-pointed star shape punching block port; (6) in five-pointed star shape punching block, inject concrete through the concrete charging aperture on the five-pointed star shape punching block; (7) Vibration on Start-up head vibration is shaken the concrete in the five-pointed star shape punching block closely knit; (8) five-pointed star shape punching block is upwards extracted certain altitude, guarantee that five-pointed star shape punching block lower end is lower than the upper surface of five-pointed star shape punching block inner concrete; (9) circulation step (6) (7) (8) until five-pointed star shape punching block is extracted ground, forms the stake of five-pointed star shape cast-in-situ steel reinforced concrete in ground; Construction technology is simple; Workable, be convenient to quality control, the bearing capacity of the five-pointed star shape cast-in-situ steel reinforced concrete stake of formation is high; Can improve unit concrete strength utilization rate, reduce construction costs; Simultaneously, can effectively increase five-pointed star shape cast-in-situ steel reinforced concrete stake stake Zhou Changdu, improve pile side friction, vertical bearing capacity and Its ultimate bearing capacity obtain bigger raising.
2, reaching under the equal bearing capacity condition, the specific area of five-pointed star shape cast-in-situ steel reinforced concrete stake is big, and concrete amount is economized; In addition, compare with the X-shaped concrete pile with Y shape, under the situation of equal outsourcing circular diameter, the inscribed circle of five-pointed star shape cast-in-situ steel reinforced concrete stake is big, promptly can hold the reinforcing cage of larger diameter, is convenient to carry bigger level and vertical load.
3, the length of five-pointed star shape punching block is 6-40m, and the five-pointed star shape cast-in-situ steel reinforced concrete stake of shaping belongs to rigid pile, and the heavy mould mode of pressurization makes that handling the degree of depth can reach 40m while vibrating.
4, five of five-pointed star shape punching block terminations are tack, are convenient to the resistance to overturning of processing and strengthening five-pointed star shape punching block; The outsourcing circular diameter of five terminations is 0.4-1.0m, is convenient to five-pointed star shape punching block and squeezes in the ground, and guarantee that five-pointed star shape punching block has higher-strength.
5, five-pointed star shape punching block is upwards extracted with the speed of pulling out on the 0.5-1.5m/min, is beneficial to pile.
6, be provided with the sign of the observation pile sinking degree of depth in the five-pointed star shape punching block outside, when five-pointed star shape punching block sinks to ground, can learn through the sign of observing the five-pointed star shape punching block outside whether to reach projected depth.
Description of drawings
Fig. 1 is a construction principle schematic of the present invention;
Fig. 2 is the vertical view that five-pointed star shape punching block is connected with cover plate among Fig. 1;
Fig. 3 is the perspective view of five-pointed star shape punching block among Fig. 1;
Fig. 4 is a work progress sketch map of the present invention;
Fig. 5 is the schematic cross-section of concrete pile of the present invention;
Fig. 6 is the vertical view of flap valve shoe among Fig. 1;
Fig. 7 is the structural representation of boots sheet among Fig. 6.
The specific embodiment
Be provided with the sign 11 of the observation pile sinking degree of depth in five-pointed star shape punching block 5 outsides, when five-pointed star shape punching block 5 sinks to ground 9, can learn through the sign 11 of observing five-pointed star shape punching block 5 outsides whether to reach projected depth.
Embodiment 2; Only be with the difference of embodiment 1: the outsourcing circular diameter of 5 five terminations of five-pointed star shape punching block is 0.7m in step (2); In step (8) with five-pointed star shape punching block 5 with 1.0m/min on the speed of pulling out upwards extract, the length of the five-pointed star shape cast-in-situ steel reinforced concrete stake 7 that in step (9), forms is 23m.
Be not limited to above-mentioned embodiment, when the ground that the present invention is directed to 9 is soft foundation, generally do not need very high strength of the mixing pile, therefore can not place reinforcing cage 8.
Claims (7)
1. a five-pointed star shape cast-in-situ concrete pile construction method is characterized in that, comprises that step is: (1) leveling place, confirm the stake position, and vibro driver is in place; (2) vibro driver top is provided with vibration head, connects cover plate at the vibration head other end, and the cover plate lower end connects five-pointed star shape punching block, and five-pointed star shape punching block lower end connects the flap valve shoe; (3) the flap valve shoe is closed up, place the pile driving position of appointment; (4) the Vibration on Start-up head vibrates downwards, and five-pointed star shape punching block is squeezed in the ground under the protection of flap valve shoe, and the flap valve shoe end soil body is squeezed in the soil body of the five-pointed star shape punching block outside; (5) put into reinforcing cage from five-pointed star shape punching block port; (6) in five-pointed star shape punching block, inject concrete through the concrete charging aperture on the five-pointed star shape punching block; (7) Vibration on Start-up head vibration is shaken the concrete in the five-pointed star shape punching block closely knit; (8) five-pointed star shape punching block is upwards extracted certain altitude, guarantee that five-pointed star shape punching block lower end is lower than the upper surface of five-pointed star shape punching block inner concrete; (9) circulation step (6) (7) (8) until five-pointed star shape punching block is extracted ground, forms the stake of five-pointed star shape cast-in-situ steel reinforced concrete in ground.
2. five-pointed star shape cast-in-situ concrete pile construction method as claimed in claim 1 is characterized in that: upwards extract in the said step (8) five-pointed star shape punching block on the speed of pulling out be 0.5-1.5m/min.
3. according to claim 1 or claim 2 five-pointed star shape cast-in-situ concrete pile construction method, it is characterized in that: the length of said five-pointed star shape punching block is 6-40m.
4. five-pointed star shape cast-in-situ concrete pile construction method as claimed in claim 3, it is characterized in that: the cross section of said five-pointed star shape punching block is five-pointed star shape, and five terminations of five-pointed star shape punching block are tack, and the outsourcing circular diameter of five terminations is 0.4-1.0m; The cover plate middle part is provided with circular hole, and reinforcing cage passes circular hole, puts into the cavity of five-pointed star shape punching block; Five-pointed star shape punching block upper end is provided with the concrete charging aperture.
5. five-pointed star shape cast-in-situ concrete pile construction method as claimed in claim 4 is characterized in that: said flap valve shoe is made up of five single-lobe boots sheets, and every lobe boots sheet is riveted with the termination of five-pointed star shape punching block and the curved portions lower edge between the termination respectively mutually.
6. five-pointed star shape cast-in-situ concrete pile construction method as claimed in claim 5 is characterized in that: the said five-pointed star shape punching block outside is provided with the sign of the observation pile sinking degree of depth.
7. five-pointed star shape cast-in-situ concrete pile construction method as claimed in claim 6 is characterized in that: said vibration head and cover plate riveted joint, cover plate and the welding of five-pointed star shape punching block, five-pointed star shape punching block and flap valve shoe riveted joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110325393XA CN102444121A (en) | 2011-10-24 | 2011-10-24 | Starlike in-situ concrete pile construction method |
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| CN201110325393XA CN102444121A (en) | 2011-10-24 | 2011-10-24 | Starlike in-situ concrete pile construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839655A (en) * | 2012-09-18 | 2012-12-26 | 中国地质大学（武汉） | Cast-in-place five-star-shaped end part threaded tapered pile and construction method of cast-in-place five-star-shaped end part threaded tapered pile |
| CN113020887A (en) * | 2021-04-01 | 2021-06-25 | 山东省公路桥梁建设有限公司 | Automatic reinforcement penetrating system and method for reinforcement cage seam welder |
| CN113338271A (en) * | 2021-05-12 | 2021-09-03 | 西安理工大学 | Concrete hollow pile pouring method and device |
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| CN2229469Y (en) * | 1995-02-28 | 1996-06-19 | 曹沂风 | Shaped mould-pipe of mould-pipe cast-in-place pile |
| EP1134319A2 (en) * | 2000-03-17 | 2001-09-19 | BVV Spezialtiefbautechnik Vertriebs GmbH | Method and apparatus for obtaining a cast in situ concrete pile |
| CN101021070A (en) * | 2007-02-12 | 2007-08-22 | 刘汉龙 | Cast-in-situ X-shaped concrete pile construction method |
| CN201082962Y (en) * | 2007-09-18 | 2008-07-09 | 徐东强 | Heterotype pile punching enlarging forming device |
| CN101672034A (en) * | 2009-10-19 | 2010-03-17 | 大连理工大学 | Vibratory pile hammer for cast-in-situ bellout wedge-shaped reinforced concrete pile and construction method |
| CN101864769A (en) * | 2010-07-02 | 2010-10-20 | 河海大学 | Cast-in-place X-shaped large-diameter hollow concrete pile and construction method thereof |
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2011
- 2011-10-24 CN CN201110325393XA patent/CN102444121A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2229469Y (en) * | 1995-02-28 | 1996-06-19 | 曹沂风 | Shaped mould-pipe of mould-pipe cast-in-place pile |
| EP1134319A2 (en) * | 2000-03-17 | 2001-09-19 | BVV Spezialtiefbautechnik Vertriebs GmbH | Method and apparatus for obtaining a cast in situ concrete pile |
| CN101021070A (en) * | 2007-02-12 | 2007-08-22 | 刘汉龙 | Cast-in-situ X-shaped concrete pile construction method |
| CN201082962Y (en) * | 2007-09-18 | 2008-07-09 | 徐东强 | Heterotype pile punching enlarging forming device |
| CN101672034A (en) * | 2009-10-19 | 2010-03-17 | 大连理工大学 | Vibratory pile hammer for cast-in-situ bellout wedge-shaped reinforced concrete pile and construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839655A (en) * | 2012-09-18 | 2012-12-26 | 中国地质大学（武汉） | Cast-in-place five-star-shaped end part threaded tapered pile and construction method of cast-in-place five-star-shaped end part threaded tapered pile |
| CN102839655B (en) * | 2012-09-18 | 2014-04-09 | 中国地质大学（武汉） | Cast-in-place five-star-shaped end part threaded tapered pile and construction method of cast-in-place five-star-shaped end part threaded tapered pile |
| CN113020887A (en) * | 2021-04-01 | 2021-06-25 | 山东省公路桥梁建设有限公司 | Automatic reinforcement penetrating system and method for reinforcement cage seam welder |
| CN113020887B (en) * | 2021-04-01 | 2022-09-13 | 山东省公路桥梁建设集团有限公司 | Automatic reinforcement penetrating system and method for reinforcement cage seam welder |
| CN113338271A (en) * | 2021-05-12 | 2021-09-03 | 西安理工大学 | Concrete hollow pile pouring method and device |
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Application publication date: 20120509 |