CN1254043A - Three-winged reducing club-footed pile, its construction method and special-purpose equipment - Google Patents
Three-winged reducing club-footed pile, its construction method and special-purpose equipment Download PDFInfo
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- CN1254043A CN1254043A CN 99112471 CN99112471A CN1254043A CN 1254043 A CN1254043 A CN 1254043A CN 99112471 CN99112471 CN 99112471 CN 99112471 A CN99112471 A CN 99112471A CN 1254043 A CN1254043 A CN 1254043A
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Abstract
The present invention relates to a kind of premoulded pile and perfusion pile used in building, bridge and other engineering and its construction method and special-purpose equipment. As compared with general perfusion pile and premoulded pile the bearing capacity of its concrete per cubic meter can be more than doubled, and its stability and pulling resistance are obviously raised. Said pile is formed from pile body, three-wing, reducing portion and club-footed pile end, and on same horizontal cross section of the pile body said three wings are distributed in the form of equal angle between them, and the longitudinal upward portion of three wings along the pile body is made into the form of trapezoid, and downward portion is made into the form of triangle, and the middle portion of the club-footed pile end is made into the form of cylinder, and its upper and lower portions are made into the form of frustum, and the reduced shape is identical to that of club-footed pile end 4.
Description
The present invention relates to a kind ofly to be applied to build, preformed pile, castinplace pile, its job practices and special equipment thereof in bridge and other engineering.
In the existing Pile Foundations Design construction technology, can embody investment rationally, the bearing capacity potential performance that can solve soil simultaneously is preferably: explosion expanded piling, root pile, variable steel-degree boring expansion dish stake (CN118487A), these characteristics are to cut into the pile body that expands plate-like in pile body, but the further bearing capacity potential of performance soil of failing.Multiple wing shape foundation reinforced concrete friction load-bearing pile (CN1081734A), these characteristics are to have brought into play native carrying potential, but construction equipment is single, and forming machine must be used the crane coordinating operation, the coordinative construction cost height of rig and forming machine the problem that expands end increase end load that do not solve.
Bottle gourd pile (CN2247195Y) has only solved the one side that pile body improves frictional resistance, and the potential of soil is failed further performance, and workmanship hidden danger is more.Only solved the pile body reducing in the variable-diameter cast-in-situ pile (CN1120102A), do not solved versatile material and use problem, accommodation is little.Squeeze and expansion multi-supported plate branch stake (CN10173588) has further brought into play native carrying potential, has brought into play the extensive region of common material, and its application prospect in highrise building is good, but also exposes following problem in practice:
1 hydraulic pressure disc enlarging machine is a single homework, must rely on the large tonnage crane coordinating operation, and folk prescription concrete construction cost rises, and construction enterprises' cost of production rises.
2 in high-rise engineering construction operation cooperate speed slow, production efficiency is low, the cost height;
3 because of the hydraulic pressure disc enlarging machine is a single homework, and the expansion dish turns to control by artificial in expansion dish process, and probability out of control rises;
4, the surplus soil in the expansion dish hub disk hole can't be got rid of, and has reduced designing requirement.
The problems referred to above are poured into a mould under water and are irritated particularly outstanding in the stake.
The purpose of this invention is to provide and make preformed pile, castinplace pile, its job practices and special equipment thereof in a kind of building, bridge and other engineering.This pile capacity height, the potential of soil is further brought into play utilization, and this job practices and equipment thereof are easy and simple to handle, dependable performance.
Technical scheme of the present invention is: three-winged reducing club-footed pile is made of pile body 1, three wings 2, reducing 3 and expanded bore pile end 4, be the isogonism distribution on the same horizontal section of pile body 1 between the three wings, it is triangular in shape that three wings 2 are trapezoidal bottom along the vertical top of pile body, expanded bore pile end 4 middle parts are frustum for the cylinder upper and lower, and the shape of reducing 3 is identical with expanded bore pile end 4 shapes.
The shape of three wings 2 is identical with expanded bore pile end 4 shapes.
The job practices that realizes above-mentioned three-winged reducing club-footed pile is, the hole of processing stake earlier, form the operation in three-winged reducing club-footed pile hole again, transfer reinforcing cage then, again concrete is filled in the hole, promptly become three-winged reducing club-footed pile, the three-winged reducing club-footed pile hole makes by following step, stop boring when at first making drill bit get into the design attitude of three wings, start the hydraulic system, make expander that bore liquid presses staving press in the horizontal direction, the soil in stake hole is pushed to be top be that trapezoidal bottom is leg-of-mutton hole, stop the hydraulic pressure work system behind the formation three wings, start rig again, when waiting to get into the reducing position of design, form the three wings hole according to the method described above, expander is rotated 120 °, repeating operation 3-4 stroke formation middle part is the reducing stake hole of cone for the cylinder upper and lower, start rig then, stop boring when waiting to get into the expanded bore pile end position of design, form a hole of the expanded bore pile end identical according to the method in above-mentioned formation reducing stake hole with reducing stake hole shape.
For realizing the special use boring hydraulic pressure staving press of described manufacturing three-winged reducing club-footed pile method, be fixed with Hydraulic Station 10 on the borer chassis 7, switchbox 13, hoist engine 17, motor 25 pylons 2, the guide rod 4 that centralizer 22 is housed is vertical by turntable 5, borer chassis 7, the joint of guide rod 4 with the joint between be connected by ready-packaged joint 3, the top of guide rod 4 is provided with water pump interface 21, the hypomere of guide rod 4 is equipped with expander 8, reverse circulation drill bit 9 is equipped with in the lower end of guide rod 4, the rotation of the gear drive control guide rod of forming by gear-box 15 power transmission shafts 16 turntables 54, hoist engine 17 is by the lifting of the head sheave 1 control guide rod 4 of wire rope 18 through being contained in pylon 2 tops, the outside of expander 8 is the cylinder casing, the casing inner tip is equipped with oil cylinder piston, high-pressure oil pipe 12 1 ends are communicated with Hydraulic Station 10 other ends and connect oil cylinder piston, oil cylinder piston is connected with three pressure arms, three pressure arms become hexagonal angle on same horizontal section, three pressure arms are made up of the two parts up and down that flexibly connect, top is connected with piston rod, the bottom is connected 8 ends of expander, be connected by fast-assembling oil connection 11 between the joint of high-pressure oil pipe 12 and the joint, have boring tower diagonal brace 14 that pylon 2 is fixed on the borer chassis 7.
Adopt the three-winged reducing club-footed pile of said structure, finish bearing capacity and be enhanced about more than once than common filling pile, every cubic metre of concrete of preformed pile, stable, the uplift resistance of stake obviously improve.
The present invention will be further described below in conjunction with drawings and Examples.
Accompanying drawing 1 is the structural representation of three-winged reducing club-footed pile.
Accompanying drawing 2 is pressed the front view of staving press for bore liquid.
Accompanying drawing 3 is pressed the left view of staving press for bore liquid.
Shown in Figure 1, three-winged reducing club-footed pile is made of pile body 1, three wings 2, reducing 3 and expanded bore pile end 4, be the isogonism distribution on the same horizontal section of pile body 1 between the three wings, it is triangular in shape that three wings 2 are trapezoidal bottom along the vertical top of pile body, expanded bore pile end 4 middle parts are frustum for the cylinder upper and lower, and the shape of reducing 3 is identical with expanded bore pile end 4 shapes.
The job practices that realizes above-mentioned three-winged reducing club-footed pile is, the hole of processing stake earlier, form the operation in three-winged reducing club-footed pile hole again, transfer reinforcing cage then, again concrete is filled in the hole, promptly become three-winged reducing club-footed pile, the three-winged reducing club-footed pile hole makes by following step, stop boring when at first making drill bit get into the design attitude of three wings, start the hydraulic system, make expander that bore liquid presses staving press in the horizontal direction, the soil in stake hole is pushed to be top be that trapezoidal bottom is leg-of-mutton hole, stop the hydraulic pressure work system behind the formation three wings, start rig again, when waiting to get into the reducing position of design, form the three wings hole according to the method described above, expander is rotated 120 °, repeating operation 3-4 stroke formation middle part is the reducing stake hole of cone for the cylinder upper and lower, start rig then, stop boring when waiting to get into the expanded bore pile end position of design, form a hole of the expanded bore pile end identical according to the method in above-mentioned formation reducing stake hole with reducing stake hole shape.
Fig. 2, shown in 3, for realizing the special use boring hydraulic pressure staving press of described manufacturing three-winged reducing club-footed pile method, be fixed with Hydraulic Station 10 on the borer chassis 7, switchbox 13, hoist engine 17, motor 25 pylons 2, the guide rod 4 that centralizer 22 is housed is vertical by turntable 5, borer chassis 7, the joint of guide rod 4 with the joint between be connected by ready-packaged joint 3, the top of guide rod 4 is provided with water pump interface 21, the hypomere of guide rod 4 is equipped with expander 8, reverse circulation drill bit 9 is equipped with in the lower end of guide rod 4, the rotation of the gear drive control guide rod of forming by gear-box 15 power transmission shafts 16 turntables 54, hoist engine 17 is by the lifting of the head sheave 1 control guide rod 4 of wire rope 18 through being contained in pylon 2 tops, the outside of expander 8 is the cylinder casing, the casing inner tip is equipped with oil cylinder piston, high-pressure oil pipe 12 1 ends are communicated with Hydraulic Station 10 other ends and connect oil cylinder piston, oil cylinder piston is connected with three pressure arms, three pressure arms become hexagonal angle on same horizontal section, three pressure arms are made up of the two parts up and down that flexibly connect, top is connected with piston rod, the bottom is connected 8 ends of expander, be connected by fast-assembling oil connection 11 between the joint of high-pressure oil pipe 12 and the joint, have boring tower diagonal brace 14 that pylon 2 is fixed on the borer chassis 7.
Claims (4)
1, a kind of three-winged reducing club-footed pile, it is characterized in that: this stake is made of pile body (1), three wings (2), reducing (3) and expanded bore pile end (4), be the isogonism distribution on the same horizontal section of pile body (1) between the three wings, it is triangular in shape that three wings (2) are trapezoidal bottom along the vertical top of pile body, expanded bore pile end (4) middle part is a frustum for the cylinder upper and lower, and the shape of reducing (3) is identical with expanded bore pile end (4) shape.
2, three-winged reducing club-footed pile according to claim 1 is characterized in that: the shape of three wings (2) is identical with expanded bore pile end (4) shape.
3, a kind of method of making the described three-winged reducing club-footed pile of claim 1, it is characterized in that: the hole of processing stake earlier, form the operation in three-winged reducing club-footed pile hole again, transfer reinforcing cage then, again concrete is filled in the hole, promptly become three-winged reducing club-footed pile, the three-winged reducing club-footed pile hole makes by following step, stop boring when at first making drill bit get into the design attitude of three wings, start the hydraulic system, make expander that bore liquid presses staving press in the horizontal direction, the soil in stake hole is pushed to be top be that trapezoidal bottom is leg-of-mutton hole, stop the hydraulic pressure work system behind the formation three wings, start rig again, when waiting to get into the reducing position of design, form the three wings hole according to the method described above, expander is rotated 120 °, repeating operation 3-4 stroke formation middle part is the reducing stake hole of cone for the cylinder upper and lower, start rig then, stop boring when waiting to get into the expanded bore pile end position of design, form a hole of the expanded bore pile end identical according to the method in above-mentioned formation reducing stake hole with reducing stake hole shape.
4, realize the special use boring hydraulic pressure staving press of the described manufacturing three-winged reducing club-footed pile of claim 3 method, it is characterized in that: be fixed with Hydraulic Station (10) on the borer chassis (7), switchbox (13), hoist engine (17), motor (25) pylon (2), the guide rod (4) that centralizer (22) are housed is vertically by turntable (5), borer chassis (7), the joint of guide rod (4) with the joint between be connected by ready-packaged joint (3), the top of guide rod (4) is provided with water pump interface (21), the hypomere of guide rod (4) is equipped with expander (8), reverse circulation drill bit (9) is equipped with in the lower end of guide rod (4), the rotation of the gear drive control guide rod of forming by gear-box (15) power transmission shaft (16) turntable (5) (4), hoist engine (17) is by the lifting of head sheave (1) the control guide rod (4) of wire rope (18) through being contained in pylon (2) top, the outside of expander (8) is the cylinder casing, the casing inner tip is equipped with oil cylinder piston, high-pressure oil pipe (12) one ends are communicated with Hydraulic Station (10) other end and connect oil cylinder piston, oil cylinder piston is connected with three pressure arms, three pressure arms become hexagonal angle on same horizontal section, three pressure arms are made up of the two parts up and down that flexibly connect, top is connected with piston rod, the bottom is connected expander (8) end, be connected by fast-assembling oil connection (11) between the joint of high-pressure oil pipe (12) and the joint, have boring tower diagonal brace (14) that pylon (2) is fixed on the borer chassis (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112471 CN1119465C (en) | 1999-09-29 | 1999-09-29 | Three-winged reducing club-footed pile, its construction method and special-purpose equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112471 CN1119465C (en) | 1999-09-29 | 1999-09-29 | Three-winged reducing club-footed pile, its construction method and special-purpose equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1254043A true CN1254043A (en) | 2000-05-24 |
| CN1119465C CN1119465C (en) | 2003-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99112471 Expired - Fee Related CN1119465C (en) | 1999-09-29 | 1999-09-29 | Three-winged reducing club-footed pile, its construction method and special-purpose equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1119465C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011406A (en) * | 2010-10-24 | 2011-04-13 | 西南交通大学 | Pile foundation with backslash disk structure |
| CN108677933A (en) * | 2018-05-29 | 2018-10-19 | 国家电网公司 | A kind of transmission line of electricity under swelled ground geological conditions subtracts swollen bored concrete pile foundation |
-
1999
- 1999-09-29 CN CN 99112471 patent/CN1119465C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011406A (en) * | 2010-10-24 | 2011-04-13 | 西南交通大学 | Pile foundation with backslash disk structure |
| CN108677933A (en) * | 2018-05-29 | 2018-10-19 | 国家电网公司 | A kind of transmission line of electricity under swelled ground geological conditions subtracts swollen bored concrete pile foundation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1119465C (en) | 2003-08-27 |
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