CN101545259B - Device and method for non-underwater concreting by using drilled pile - Google Patents
Device and method for non-underwater concreting by using drilled pile Download PDFInfo
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- CN101545259B CN101545259B CN2009100388247A CN200910038824A CN101545259B CN 101545259 B CN101545259 B CN 101545259B CN 2009100388247 A CN2009100388247 A CN 2009100388247A CN 200910038824 A CN200910038824 A CN 200910038824A CN 101545259 B CN101545259 B CN 101545259B
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Abstract
The invention relates to a device for non-underwater concreting by using a drilled pile, which is characterized by comprising a drain pipe and a tubular internal mold unit, wherein the bottom of the first-section internal mold unit is connected with a sealing cover plate, a pipe boot is connected under the cover plate and adopts a structure of a frustum shell with a downward big head, the outer diameter of the big head of the frustum shell is equal to the diameter of the drilled pile; and the drain pipe passes through a center hole of the sealing cover plate from the internal mold unit to extend into the pipe boot and is fixed on the sealing cover plate to form a casting unit. The invention also relates to a method for non-underwater concreting by using the drilled pile. The invention has simplified operation procedure, can control the quality of the cement and save 20 percent of cement consumption and electric power and is also convenient for detecting the casting quality; especially, the invention ensures that sea water can not contact with a reinforcing cage when a sea pile is casted, and the invention can effectively protect reinforcing steel bars against chloride ion erosion and rustiness.
Description
Technical field
The invention belongs to building field, specifically is a kind of building field the circle round boring or device of the non-underwater concreting pile foundation of percussive drilling of being used for, and the invention still further relates to and uses said apparatus boring to be carried out the method for non-underwater concreting.
Background technology
Conventional drilling pouring pile hole is to use mud off, can only adopt the method for underwater concreting.The perfusion cannula that the method for underwater concreting adapts with hole depth one, grows stretches in the hole and arrives the bottom in hole, then concrete is begun to pour into through the bottom of this conduit by the hole, simultaneously the water in the hole is discharged; Along with the thickness of concrete perfusion constantly increases, perfusion cannula progressively need be pulled upwardly, must guarantee in the filling process that the mouth of pipe of perfusion cannula is covered with by concrete all the time.Because mud can dilute concrete, the concrete proportioning that is used for underwater grouting must improve a grade, generally will be how with 20% cement, cause the construction cost per square meter height.In addition, during above-mentioned underwater concreting, any other device at interval is not set in the hole, promptly when perfusion, concrete need be full of whole hole; And the pile foundation that in fact becomes with concrete spouting only needs to guarantee that the pile lining of pile foundation reaches certain thickness and just can satisfy high-intensity requirement, and the concrete at its center does not only play the effect of essence, and can increase the weight of pile foundation.
Simultaneously, because being the water in the hole, the mode of underwater concreting directly contacts with not solidified concrete, the impurity such as sandstone that are mixed in the water may enter in the concrete, make pile foundation produce the mass defect as segregation, broken pile, folder mud etc., cause security incident easily.The pile foundation that has can't be repaired because of defective and be scrapped, and not only causes the waste of fund, has also wasted resource simultaneously.
Moreover, underwater concreting must use satisfactory grouting conduit, joint will seal, with before to check, test, because the mouth of pipe of perfusion cannula is covered with by concrete all the time, also to often go here and there perfusion cannula in the filling process, in case plugging, the operation more complicated, required man-hour is also long.
Summary of the invention
One of the technical problem to be solved in the present invention just provides a kind of simple in structurely, easy to use, and can save concrete material on the basis of the requirement of strength of full pile foundation, shortens the device of the non-underwater concreting by using drilled pile in man-hour.
Address the above problem, can realize by following technical scheme:
The device of non-underwater concreting by using drilled pile, it is characterized in that: comprise the interior form unit of gutter and tubulose, the bottom of form unit is connected with seal cover board in the first joint, connects a shoe under the cover plate, its structure is big catotropic butt conical shell, and the external diameter of butt conical shell major part equals the drilled pile footpath; Gutter passes the seal cover board interstitial hole and extends in the shoe and be fixed on seal cover board and constitute a pouring unit from interior form unit.
On the basis of the above, the present invention can do following improvement:
Form unit top and bottom are provided with plug-in structure in described.
The axial section of described shoe becomes isosceles trapezoid, and this shoe is divided into equal more than two parts along circumference, is that detachable connects between each part shoe.
The outside of form unit is provided with the tubulose reinforcing cage in described.
Described gutter and interior form unit are coaxial installation, guarantee that the center of gravity of this device is positioned at the center of whole device, when concrete perfusion, can make this device keep good equilibrium state.
Some of being designed to split easily vertically of interior form unit and shoe conveniently finish and interior form unit and shoe are disassembled from concrete during 100% intensity at concrete spouting.
Two of the technical problem to be solved in the present invention provides a kind of method of utilizing said apparatus to carry out the non-underwater grouting of concrete hole stake, and this method cost simple to operate, cost is lower and man-hours requirement is shorter.
It comprises the step of following order:
A, at first will connect into the pouring unit, and winch to the aperture of drilled pile pore-forming, and the upper end of gutter will be connected water plug by form unit, seal cover board and shoe in gutter, the first joint;
B, the concrete perfusion outside interior form unit and in the space of boring between the inwall while falling are then discharged by gutter with the water of volume simultaneously;
C, concrete reach after 100% intensity with mechanical cage make a gift to someone down dismounting gutter, interior form unit, seal cover board and shoe;
D, the feeding of usefulness well-bucket are at foot of hole castinplace pile base concrete, and backfill sand is to closely knit after the initial set, and pile crown is reserved the space that combines with the heavy stand concrete.
The concrete of this method perfusion does not contact with water in the hole all the time, can realize non-underwater concreting.
On the basis of the above, the present invention can do following improvement:
The concrete shake of the every perfusion of described step b 2m is smash once, discharges the bubble compact structure.
In before according to described step b, being installed in the suitable funnel of interior form unit and drilling orifice on the form unit, then through this funnel concrete perfusion with one.
In need plugging into, during form unit, earlier interior form unit is pegged graft, continue concrete perfusion then, repeat this step repeatedly, up to the design elevation top of concrete spouting to boring according to described step b concrete perfusion.
Before described steps d castinplace pile base concrete, use the sediment at the end that manually opens a hole earlier.
Before described step b begins concrete perfusion between the inwall of the outer wall of interior form unit and boring, reinforcing cage is set, when plugging into, interior form unit pegged graft refute the weldering reinforcing cage more earlier.
Beneficial effect of the present invention:
(1) can save 20% cement consumption, therefore the concrete unit price can reduce by 15%.
(2) directly from the well head concreting, operation sequence is simplified, quality controllable, concrete structure is closely knit.
(3) hidden danger that pile foundation is sunk has been eliminated in sediment zero clearing at the bottom of the hole.
(4) after the form removal, the inspection pouring quality of can mannedly going into the well need not sounding or moving the survey, can also replace drill sampling with shooting, and the pile foundation defective can in time be repaired, and saves and detects and the expense of punishment.
(5) the perfusion unit descends by buoyancy of water control, consumption of power not, and every pile can be saved 400 degree electricity at least, and energy conservation is had practical significance.
(6) beginning of the water in the boring does not directly contact with reinforcing bar, is the effective measures of anti-seawater chlorion etch reinforcing bar.
Description of drawings
Fig. 1 is the structural representation of the device of non-underwater concreting by using drilled pile of the present invention;
Fig. 2 is the cross-sectional schematic along A-A line among Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is to use the schematic diagram of the method for non-underwater concreting by using drilled pile of the present invention, and this moment is concrete perfusion between internal mold outer wall and boring;
Fig. 5 is to use the schematic diagram of the method for non-underwater concreting by using drilled pile of the present invention, and filled concrete between internal mold outer wall and the boring this moment, and the water in the hole drains;
Fig. 6 is to use the schematic diagram of the method for non-underwater concreting by using drilled pile of the present invention, and gutter, internal mold and shoe all are removed at this moment, and foot of hole has poured into bottom concrete, and hollow parts has been filled other materials.
The specific embodiment
The device of the non-underwater concreting by using drilled pile shown in Fig. 1～3 is embodiments of the invention one, it has comprised that the interior form unit of gutter and several tubuloses, inside are the shoe of hollow chamber, shoe and interior form unit are made by steel plate, form unit formation internal mold that is coaxial docking in each.
Wherein, it is up-narrow and down-wide hood-shaped structure for a shoe, and its axial section becomes isosceles trapezoid, and this shoe is divided into equal three parts along circumference, connects for detachable between each part shoe.Interior form unit is spliced into dismountable round tube by the tube wall of two or more than two equal diameters.
The bottom of shoe is the opening that is communicated with its inner hollow chamber, and the size of this opening adapts with the aperture of conventional boring; The form unit that is positioned at the end is provided with a seal cover board adaptive with it, and the sealing cover plate removably is fixed on the end face of the shoe that size and its pipe outer wall adapt; Gutter is coaxial to be installed in the internal mold, and the lower end of gutter is passed the top board of shoe and is fixed on the shoe, and the port of gutter lower end is communicated with the hollow chamber of described shoe.
The method of the non-underwater concreting by using drilled pile shown in Fig. 4～5 is embodiments of the invention two, and it comprises the step of following order:
A, at first will rise to the opening of boring, and the upper end of gutter will be connected water plug by the device that gutter, interior form unit, seal cover board and shoe connect into;
B, be installed in the suitable funnel of interior form unit and drilling orifice one on the form unit, before the beginning concrete perfusion between the inwall of the outer wall of interior form unit and boring, reinforcing cage is set; Start then water plug simultaneously while falling in the outer wall of interior form unit and the space between the boring inwall concrete perfusion, discharge by gutter with the water of volume simultaneously; When the height of concrete perfusion reaches the top of an interior form unit, form unit in another is connect and welds with relative the refuting of reinforcing bar with being somebody's turn to do interior form unit, continue concrete perfusion then, repeat this step repeatedly, up to the top of concrete spouting to boring; The concrete shake of every perfusion 2m is stirred once, discharges bubble.
C, when treating that concrete reaches 100% intensity, dismounting gutter, interior form unit, seal cover board and shoe; Then with the mechanical cage foot of hole cleaning sediment of making a gift to someone down.
D, pour into bottom concrete with the well-bucket feeding at foot of hole, with filler backfill hollow parts such as sandstone and closely knit, that pile crown is reserved is certain, be used in conjunction with the concrete space of cushion cap after the initial set.
Described internal mold comprises form unit in several, and form unit is coaxial docking in each, and the bottom surface that is positioned at the form unit at the end connects the end face of shoe.In practice of construction, some interior form unit axis butt joints are linked to be the internal mold that adapts with drilling depth, to adapt to the boring of different depth, improve practicality of the present invention.
The bottom surface that is positioned at the form unit at the end of the present invention is provided with a seal cover board suitable with it, and the sealing cover plate removably is fixed on the end face of described shoe; The top board of sealing cover plate and shoe is passed in the lower end of described gutter.The sealing cover plate can blocks flow concrete enter in internal mold and the shoe.
Claims (10)
1. the device of non-underwater concreting by using drilled pile, it is characterized in that: comprise the interior form unit of gutter and tubulose, the bottom of form unit is connected with seal cover board in the first joint, connects a shoe under the cover plate, its structure is big catotropic butt conical shell, and the external diameter of butt conical shell major part equals the drilled pile footpath; Gutter passes the seal cover board interstitial hole and extends in the shoe and be fixed on seal cover board and constitute a pouring unit from interior form unit.
2. the device of non-underwater concreting by using drilled pile according to claim 1 is characterized in that: form unit top and bottom are provided with the syndeton of the dismounting of can pegging graft in described.
3. the device of non-underwater concreting by using drilled pile according to claim 2, it is characterized in that: the axial section of described shoe becomes isosceles trapezoid, and this shoe is divided into equal more than two parts along circumference, be that detachable connects between each part shoe.
4. the device of non-underwater concreting by using drilled pile according to claim 3 is characterized in that: the outside of form unit is provided with the tubulose reinforcing cage in described.
5. the device of non-underwater concreting by using drilled pile according to claim 4, it is characterized in that: described gutter and interior form unit are coaxial installation.
6. non-underwater concreting by using drilled pile method, it is characterized in that: it comprises the step of following order:
A, at first will connect into the pouring unit, and winch to the aperture of drilled pile pore-forming, and the upper end of gutter will be connected water plug by form unit, seal cover board and shoe in gutter, the first joint;
B, the concrete perfusion outside interior form unit and in the space of boring between the inwall while falling are then discharged by gutter with the water of volume simultaneously;
C, concrete reach after 100% intensity with mechanical cage make a gift to someone down dismounting gutter, interior form unit, seal cover board and shoe;
D, the feeding of usefulness well-bucket are at foot of hole castinplace pile base concrete, and backfill sand is to closely knit after the initial set, and pile crown is reserved the space that combines with the heavy stand concrete.
7. according to the non-underwater concreting by using drilled pile method shown in the claim 6, it is characterized in that: the concrete shake of the every perfusion of described step b 2m is smash once, discharges the bubble compact structure.
8. according to the non-underwater concreting by using drilled pile method shown in the claim 7, it is characterized in that: in before according to described step b, being installed in the suitable funnel of interior form unit and drilling orifice on the form unit, then through this funnel concrete perfusion with one.
9. the non-underwater concreting by using drilled pile method shown in according to Claim 8 is characterized in that: before described steps d castinplace pile base concrete earlier with the sediment at the end that manually opens a hole.
10. according to the non-underwater concreting by using drilled pile method shown in the claim 9, it is characterized in that: before described step b begins concrete perfusion between the inwall of the outer wall of interior form unit and boring, reinforcing cage is set, when plugging into, interior form unit is pegged graft refute the weldering reinforcing cage more earlier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009100388247A CN101545259B (en) | 2009-04-21 | 2009-04-21 | Device and method for non-underwater concreting by using drilled pile |
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| CN2009100388247A CN101545259B (en) | 2009-04-21 | 2009-04-21 | Device and method for non-underwater concreting by using drilled pile |
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| CN101545259A CN101545259A (en) | 2009-09-30 |
| CN101545259B true CN101545259B (en) | 2011-06-22 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102995642B (en) * | 2012-12-26 | 2014-11-12 | 广西建工集团第三建筑工程有限责任公司 | Underwater concrete spouting laitance prevention water-proof device |
| CN104404953B (en) * | 2014-12-12 | 2015-11-18 | 车富发 | Cast-in-place concrete pile bubble is eliminated and is built device |
| CN104695444B (en) * | 2015-01-17 | 2016-06-22 | 中建五局蚌埠建筑工程有限公司 | Stake core fills concrete device |
| CN107246242B (en) * | 2017-08-01 | 2024-01-30 | 山东省华鲁工程建设有限公司 | Dual-purpose drill bit for slurry wall-protecting bored pile construction and use method thereof |
| CN117344855A (en) * | 2023-12-05 | 2024-01-05 | 河北中铸爱军建设集团股份有限公司 | Construction method of frame-core tube building structure |
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