CN101324066A - Construction method drive type major diameter steel pipe pore-creating filling pile - Google Patents
Construction method drive type major diameter steel pipe pore-creating filling pile Download PDFInfo
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- CN101324066A CN101324066A CNA2008100126305A CN200810012630A CN101324066A CN 101324066 A CN101324066 A CN 101324066A CN A2008100126305 A CNA2008100126305 A CN A2008100126305A CN 200810012630 A CN200810012630 A CN 200810012630A CN 101324066 A CN101324066 A CN 101324066A
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Abstract
The invention relates to the field of building construction, in particular to a construction method used for punching-typed large-diameter steel pipe hole-forming pouring piles, comprising the steps as follows: step 1: hole forming: the large steel pipe with the external diameter of 800-2000mm is adopted for hole-forming; step 2: reinforced cages-arranging: the reinforced cages are arranged inside the large steel pipes; step 3: pouring: concrete is poured into the hole of the reinforced cage after the installation is complete, simultaneously, the hole-forming large steel pipe is pulled out and the pile is formed. The pouring pipe construction method of the invention can replace the construction of manpower excavating pile and the mechanical hole-forming slurry wall-protection pouring pipe with large diameter, and has the obvious advantages of safe structure, greatly improving the bearing capability of single pile, environmental protection in-situ, safe construction, reducing the construction links and saving the engineering cost, etc., compared with the traditional mechanical boring pouring and manpower excavation pouring pipes.
Description
One, technical field:
The present invention relates to building field, particularly the job practices of castinplace pile.
Two, background technology:
Traditional cast-in-place pile construction method mainly contains manually digging hole filling pile and mechanical hole building slurry drilled pile, these two kinds of methods mainly exist the not enough problem of several respects: manually digging hole filling pile is in pore forming process, constructor's processing safety is low, hole problem, the mechanical hole building permeable broken pile problem that causes of conduit in the catheter perfusion process under water of collapsing that often occurs in the mechanical hole building process, long in time limit: manually digging hole needs 10-20 days with diameter with the degree of depth, the percussive drilling pore-forming needs 2-5 days, and the machine drilling of revolution class needs 2-3 days.Environmental issue: adopting machinery to play (brill) stake needs the mud off pore-creating filling pile because mud off produces the certain thickness sediment behind the clear hole of pore-forming, and hand excavated pile needs concrete dado, produces the mud problem, not environmental protection.Can solve the restriction of the manually digging hole degree of depth, mechanical hole building degree of depth restricted problem, the stake footpath is generally the 600mm tube-sinking cast-in-situ pile, and present steel pipe walls is thinner, disposable use, and cost is higher.
Three, summary of the invention:
The objective of the invention is to overcome above-mentioned not enough problem, a kind of job practices of drive type major diameter steel pipe pore-creating filling pile is provided, method is simple, construction safety, and the duration is short, and pilework is reliable, environmental protection.
The technical scheme that the present invention is adopted for achieving the above object is: the job practices of drive type major diameter steel pipe pore-creating filling pile, and first step pore-forming: adopting outer diameter of steel pipes is the big steel pipe pore-forming of 800mm-2000mm;
Second step was installed reinforcing cage: in above-mentioned big steel pipe reinforcing cage is installed;
The 3rd step cast: install in the hole of reinforcing cage and water the perfusion concrete, extract the pore-forming big steel pipe simultaneously, pile.
Described first step pore-forming: the big steel pipe that adopts paddle type mill pile driver hammering band stake point.Pile driver is made mechanical, electrical fluid pressure type pile driver for crawler type diesel oil, joins guide rod pile hammer and cartridge type pile hammer.
Described big steel pipe is for being not the big steel pipe of 1200-2000mm with the sharp diameter of steel tube of stake, or diameter of steel tube is 800-1200mm, wears the big steel pipe of piling bar point or prefabricated concrete, steel bar concrete tapered pile point.
Described second step installation reinforcing cage: employing does not need pore-forming after the taking-up of the soil in the steel pipe after not being driven underground with the big steel pipe of stake point.
Described second step is installed reinforcing cage: adopt piling bar point big steel pipe pore-forming, earlier the piling bar point is taken out the back reinforcing cage is installed; Adopt prefabricated concrete, reinforced concrete pile point big steel pipe pore-forming, then reinforcing cage can be installed directly.
Described the 3rd step pour concrete: the perfusion concrete also vibrates, pulls out steel pipe simultaneously.
The described steel pipe that pulls out adopts the fluid pressure type pipe drawing device to water the real jacking tube drawing of puddling with concrete.
Described fluid pressure type pipe drawing device is made up of hydraulic system, pipe extractor, on the hydraulic jack arm of hydraulic system the tube drawing frame is housed, the tube drawing frame has pilot hole, be sleeved on the oil cylinder arm by pilot hole, have the big steel pipe jack in the middle of the tube drawing frame, by locking device locking, locking device is a wedge between jack and the big steel pipe, and Hydraulic Station is supplied with the hydraulic oil of 30mpa.By distributor fuel feeding about the pipe extractor oil cylinder, to realize moving up and down of oil cylinder arm.
Cast-in-place pile construction method of the present invention can replace the construction of large diameter hand excavated pile and mechanical hole building slurry drilled pile, beat with tradition machinery that pour in (brills) hole, manually digging hole filling pile is compared, have outstanding features such as structural safety, bearing capacity of single pile significantly improve, on-the-spot environmental protection, construction safety, minimizing construction link, saving construction costs:
1, constructing operation automaticity height, the minimizing personnel closely operate at the scene, have improved the degree of safety of operation.
2, structural safety is reliable, guarantees that pile body is complete, and concrete compactness height when dry hole is built the low slump concrete has particularly improved the safety of structure of castinplace pile greatly.
3, effect is fast, the duration is short, and large diameter steel pipe pile sinking pore-forming is under general geological conditions, and 20 meters dark stakes about 30-60 of every hole time spent minute have been shortened the engineering time greatly, have accelerated construction speed, raising capital recovery speed.
4, work progress environmental protection adopts the sharp big steel pipe of band stake to squeeze into the formula pore-forming, and to compacted all around, stake end cleaning does not have sediment to large diameter steel pipe pile behind the pore-forming, need not mud off, can not produce mud with the stake hole soil body, and the job site is clean and tidy, environmental protection.
5, the single pile stake is longly accomplished more than 50 meters, the stake footpath can reach 2m.Adopt big steel pipe to carry out pile sinking, flexible, more piece pile extension, stake hole pore-creating can reach more than 50 meters, and diameter can accomplish that 800mm, 1000mm, 1200mm, 1500mm, 2000mm do not wait, can be as design and construction of a post.
6, vertical bearing capacity of single pile and collateral resistance height: the stake end is gone into rock and can be guaranteed, adopts high strength prefabricated concrete stake point or piling bar point, large-tonnage (10-20t) hammer hammer piling, and the weathering diabase was more than 4 meters during the stake end can be gone into.Compare under same geological conditions, large diameter steel pipe castinplace pile bearing capacity of single pile end resistance is higher than machinery and beats (brill) hole pouring pile end resistance 30-35%.A sharp big steel pipe is squeezed into the formula pore-forming because the large diameter steel pipe castinplace pile adopts the band stake, with the stake hole soil body to around compacted and increase pile body frictional force, beat (brill) hole pouring pile so its collateral resistance can be higher than machinery.
7, cost is low: the pile foundation engineering cost depends on the having or not of slump height, retaining wall of fullness coefficient size, the concrete of height, the concrete of height, the pile body collateral resistance of height, the bearing capacity of pile tip of bearing capacity of single pile, the height of construction equipment energy consumption etc.Bearing capacity of single pile of the present invention and end resistance are higher than tradition construction skill pile 30-35%, pile body collateral resistance far away than traditional handicraft pile height, can be as design and construction of engineering one post or modular design construction in a small amount.Construction costs can be saved 10%-20%, because pile body diameter can be controlled, filling volume can be controlled in 10%, can save the amount of building of concrete greatly, further reduces cost.
Drive type major diameter steel pipe pore-creating filling pile of the present invention is applicable to high-rise and constructions such as multistory building engineering, bridge engineering and large-scale structure engineering.
Four, description of drawings:
Fig. 1 is a pipe extractor structural representation of the present invention.
Fig. 2 is a hydraulic system structure schematic diagram of the present invention.
Five, the specific embodiment:
Below in conjunction with specific embodiment the present invention is described in further detail, but is not limited to specific embodiment.
Embodiment 1
The job practices of drive type major diameter steel pipe pore-creating filling pile,
First step pore-forming: adopt outer diameter of steel pipes be 2000mm not with the big steel pipe pore-forming of steel point, adopt the diesel pile hammer with crawler carrier hammering big steel pipe of joining guide rod pile hammer and cartridge type pile hammer;
Second step was installed reinforcing cage: after earlier the soil in the big steel being taken out, in above-mentioned big steel pipe reinforcing cage is installed;
The 3rd step cast: install and water the perfusion concrete in the hole of reinforcing cage and vibrate, along with concrete waters the real fluid pressure type pipe drawing device tube drawing that adopts of puddling, by hydraulic system, pipe extractor is formed, hydraulic system as shown in Figure 2, hydraulic oil container 2 is fixed on the support 1, the hydraulic oil container oil-out has oil pump 4, the oil pump outlet is communicated with distributor 3, and distributor is communicated with hydraulic jack 5, and tube drawing frame 6 (as shown in Figure 1) is housed on the hydraulic jack arm, the tube drawing frame has pilot hole, be sleeved on the oil cylinder arm by pilot hole, have the big steel pipe jack in the middle of the tube drawing frame, lock by locking device 7 between jack and the big steel pipe, locking device is a wedge, and Hydraulic Station is supplied with the hydraulic oil of 30mpa.By distributor fuel feeding about the pipe extractor oil cylinder, to realize moving up and down of oil cylinder arm, extract pore-forming big steel pipe pile, the stake footpath can reach 2000mm.
The job practices of large diameter steel pipe pore-creating filling pile,
First step pore-forming: adopting outer diameter of steel pipes is the big steel pipe pore-forming with prefabricated concrete tapered pile point of 800mm, adopts the electric fluid pressure type pile driver hammering big steel pipe of joining guide rod pile hammer and cartridge type pile hammer;
Second step was installed reinforcing cage: directly in above-mentioned big steel pipe reinforcing cage is installed;
The 3rd step cast: install and water the perfusion concrete in the hole of reinforcing cage and vibrate, along with concrete waters the real fluid pressure type pipe drawing device tube drawing that adopts of puddling, the fluid pressure type pipe drawing device is made up of hydraulic system, pipe extractor, on the hydraulic jack arm of hydraulic system the tube drawing frame is housed, the tube drawing frame has pilot hole, is sleeved on the oil cylinder arm by pilot hole, have the big steel pipe jack in the middle of the tube drawing frame, by locking device locking, locking device is a wedge between jack and the big steel pipe, and Hydraulic Station is supplied with the hydraulic oil of 30mpa.By distributor fuel feeding about the pipe extractor oil cylinder, to realize moving up and down of oil cylinder arm, extract pore-forming big steel pipe pile, the stake footpath can reach 800mm.
Embodiment 3
The job practices of large diameter steel pipe pore-creating filling pile,
First step pore-forming: adopting outer diameter of steel pipes is the big steel pipe pore-forming of 1000mm band prefabricated reinforced concrete tapered pile point, adopts the electric fluid pressure type pile driver hammering big steel pipe of joining guide rod pile hammer and cartridge type pile hammer;
Second step was installed reinforcing cage: directly in above-mentioned big steel pipe reinforcing cage is installed;
The 3rd step cast: install and water the perfusion concrete in the hole of reinforcing cage and vibrate, extract the pore-forming big steel pipe along with concrete waters the real fluid pressure type oil cylinder that adopts of puddling, pile, the stake footpath can reach 1000mm.
According to embodiment 1 described method, adopt the big steel pipe pore-forming of diameter 1500mm, make the 1500mm castinplace pile.
According to embodiment 1 described method, adopt the big steel pipe pore-forming of diameter 1800mm, make the 1800mm castinplace pile.
According to embodiment 2 described methods, adopt the big steel pipe pore-forming of diameter 1200mm, make the 1200mm castinplace pile.
Through testing: adopt the piling of crawler type pile driver and electric hydraulic pile driver to join the macro-energy cartridge type and beat stake, unit operating efficiency height, 20 meters long average every about 30-60 of time spent minute pore-formings of stake, poured into about 40-60 of time spent minute, so the unit pile can reach the 5-10 root average every every day, saves human and material resources, financial resources.
Claims (9)
1, the job practices of drive type major diameter steel pipe pore-creating filling pile is characterized in that:
First step pore-forming: adopting outer diameter of steel pipes is the big steel pipe pore-forming of 800mm-2000mm;
Second step was installed reinforcing cage: in above-mentioned big steel pipe reinforcing cage is installed;
The 3rd step cast: install in the hole of reinforcing cage and water the perfusion concrete, extract the pore-forming big steel pipe simultaneously, pile.
2, the job practices of drive type major diameter steel pipe pore-creating filling pile according to claim 1 is characterized in that:
First step pore-forming: the big steel pipe that adopts paddle type mill pile driver hammering band stake point.
3, the job practices of drive type major diameter steel pipe pore-creating filling pile according to claim 1 and 2 is characterized in that: pile driver is made mechanical, electrical fluid pressure type pile driver for crawler type diesel oil, joins guide rod pile hammer and cartridge type pile hammer.
4, the job practices of drive type major diameter steel pipe pore-creating filling pile according to claim 1 and 2, it is characterized in that: big steel pipe is to be not the big steel pipe of 1200-2000mm with the sharp diameter of steel tube of stake, or diameter of steel tube is 800-1200mm, wears the big steel pipe of piling bar point or prefabricated concrete, steel bar concrete tapered pile point.
5, the job practices of drive type major diameter steel pipe pore-creating filling pile according to claim 4 is characterized in that: second step installation reinforcing cage: employing does not need pore-forming after the taking-up of the soil in the steel pipe after not being driven underground with the big steel pipe of stake point.
6, the job practices of drive type major diameter steel pipe pore-creating filling pile according to claim 4 is characterized in that: second step was installed reinforcing cage: adopt piling bar point big steel pipe pore-forming, earlier the piling bar point is taken out the back reinforcing cage is installed; Adopt prefabricated concrete, reinforced concrete pile point big steel pipe pore-forming, then reinforcing cage can be installed directly.
7, the job practices of drive type major diameter steel pipe pore-creating filling pile according to claim 1 and 2 is characterized in that: the 3rd step pour concrete: the perfusion concrete also vibrates, pulls out steel pipe simultaneously.
8, the job practices of drive type major diameter steel pipe pore-creating filling pile according to claim 1 and 2 is characterized in that: pull out steel pipe and adopt the fluid pressure type pipe drawing device to water the real jacking tube drawing of puddling with concrete.
9, the job practices of drive type major diameter steel pipe pore-creating filling pile according to claim 1 and 2, it is characterized in that: the fluid pressure type pipe drawing device is made up of hydraulic system, pipe extractor, on the hydraulic jack arm of hydraulic system the tube drawing frame is housed, the tube drawing frame has pilot hole, be sleeved on the oil cylinder arm by pilot hole, have the big steel pipe jack in the middle of the tube drawing frame, lock by locking device between jack and the big steel pipe, locking device is a wedge, and Hydraulic Station is supplied with the hydraulic oil of 30mpa.By distributor fuel feeding about the pipe extractor oil cylinder, to realize moving up and down of oil cylinder arm.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100126305A CN101324066A (en) | 2008-08-04 | 2008-08-04 | Construction method drive type major diameter steel pipe pore-creating filling pile |
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| CNA2008100126305A CN101324066A (en) | 2008-08-04 | 2008-08-04 | Construction method drive type major diameter steel pipe pore-creating filling pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660957A (en) * | 2012-05-31 | 2012-09-12 | 中国二十二冶集团有限公司 | Foundation pit supporting construction method for soft soil zone |
| CN108729445A (en) * | 2018-08-13 | 2018-11-02 | 中地君豪建筑工程有限公司 | The method for abolishing the drill bit of waste and old solid pile and abolishing old solid pile and new pile being perfused |
-
2008
- 2008-08-04 CN CNA2008100126305A patent/CN101324066A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660957A (en) * | 2012-05-31 | 2012-09-12 | 中国二十二冶集团有限公司 | Foundation pit supporting construction method for soft soil zone |
| CN108729445A (en) * | 2018-08-13 | 2018-11-02 | 中地君豪建筑工程有限公司 | The method for abolishing the drill bit of waste and old solid pile and abolishing old solid pile and new pile being perfused |
| CN108729445B (en) * | 2018-08-13 | 2023-12-19 | 广州君豪岩土工程有限公司 | Drill bit for breaking waste solid piles and method for breaking old solid piles and filling new piles |
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Open date: 20081217 |