CN1896382A - Bored-concrete pile hydraulic expanding engineering vehicle, optimization friction resistance bored-concrete pile and its construction - Google Patents
Bored-concrete pile hydraulic expanding engineering vehicle, optimization friction resistance bored-concrete pile and its construction Download PDFInfo
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- 239000003921 oil Substances 0.000 claims description 95
- 229910000831 Steel Inorganic materials 0.000 claims description 22
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- 239000002828 fuel tank Substances 0.000 claims description 3
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Abstract
This is a kind of hydraulic expanding technical vehicle for cast-in-place pile and a friction resistance-optimized cast-in-place pile with its construction process. The technical vehicle includes the motorcar chassis, the crane and the hydraulic pile expanding machine with digital display system. It features of the cylindrical hydraulic pile expanding machine positioned below the crane boom between the cab and the crane control cubicle via traverse fixing fixture and bottom traverse fixing pin, the crane boom supporting oil cylinder of the boom and the hydraulic pump station at the vehicle end, the road wheel of high-pressure oil line of the pile expanding machine on the top of the jibboom, the lifting pulley of the oil line at the front end of the crane boom, the lifting hoisting roller of the high-pressure oil line at the vehicle end, the power supply control cubicle and the telescopic digital displaying control cubicle on two sides of the pile expanding machine. This invention enlarges the surface area of the pile in the same specification by 45-50%, and saves 40-45% of the materials and 30% of the investment with the same bearing capacity of single pile.
Description
Technical field
The present invention relates to construction work, bridge pile foundation engineering machinery field, filling pile construction equipment, stake type and job practices.
Background technology
At present, used cast-in-place concrete pile technology in construction work both at home and abroad and the engineering construction of speedway bridge pier is still adopting common drilling hole bored concrete pile technology.This common filling pile technology consumptive material is many, construction profit is low.Successively having adopted squeezed castinplace pile, many support disk piles technology, its common feature the nineties in construction work is to adopt the hydraulic principle, forms the load dish of a plurality of different-diameters in the stake hole with the staving press extruding.This technology is feasible on principle, but significant limitation is arranged in actual use, as: the characteristics of squeezed castinplace pile and many disk technologies are to be applicable to the stake footpath in 600mm, and stake is long 20 meters common engineering with interior paxilla footpath.For the stake more than the high-rise engineering 600mm in incity, city, adopt squeezed castinplace pile and many support disk piles technology, will cause construction cost to increase, construction enterprises' profit margin descends, and the stake type of science substitutes speed and waits unfavorable factor to hinder technical progress of industry slowly.
Summary of the invention
The purpose of this invention is to provide a kind of pile hydraulic expanding engineering vehicle of castinplace pile frictional resistance, cast-in-place pile type and job practices of optimizing frictional resistance that produce of improving, be applicable to the pile foundation engineering of highrise building and bridge, high efficiency, construction cost is low, equipment mobility is good, and job area is wide.
The pile hydraulic expanding engineering vehicle of castinplace pile of the present invention, comprise automobile chassis, crane, pile hydraulic expanding machine, pile hydraulic expanding machine digital readout system, it is characterized in that: cylindrical pile hydraulic expanding machine is by the horizontal crane arm below that places between driver's cabin and the crane pulpit of dress holding clamp and the pile spreader bottom steady pin that crouches, and the hydraulic power unit of pile hydraulic expanding machine, high-pressure oil passage, electrical power control cabinet and telescopic digital display control room all are installed on the car body.The optimization friction resistance bored-concrete pile type that described pile spreader is made is characterized in that having on the pile body of cylindrical stake periphery the paired rectangle stake of protrusion to bore, and distributes perpendicular to axle center, radial level.Adopt the job practices of this engineering truck: the pile hydraulic expanding machine is vertically hung in the castinplace pile boring by crane, provide hydraulic thrust by hydraulic power unit, all of pile spreader expand the stake awl and begin bottom soil layer is on every side applied horizontal extruding force from stake boring simultaneously, the extruding progress is presented at digital display control room and printable report in real time, obtain behind the above-mentioned castinplace pile pass height by crane lifting one pile spreader body, repeat above-mentioned squeeze job, after full hole depth was finished, car body delivered to next position, hole.
The present invention is construction work, and particularly a kind of new stake type, new construction equipment and job practices have been expanded in the construction of speedway bridge pile foundation.Its advantage applies exists:
1, filling pile construction equipment of the present invention is combined with vehicle, all devices is assemblied on the power car, make every work reach function synergic, freight and preparation of construction time have been reduced, not only construction equipment can be saved material 40-45% for underground pile body, save the lifting appliance that aims at this equipment shipment, operation for the job site simultaneously, or saved special transport vehicle, saved construction investment 30%-40%.
2, the chassis of adopting high-powered car is adapted to the needs of field work as vehicle, is adapted to the job site condition of speedway bridge pile foundation engineering.Rotating disk and arm of derrick can guarantee that vertical lift and level turn to for 360 ° the pile hydraulic expanding machine neatly at work, the high-pressure oil passage that the oil cylinder of pile hydraulic expanding machine connects is controlled the lifting folding and unfolding with the hoist engine cylinder, can guarantee that the pile hydraulic expanding machine lifting of playing with crane is synchronous.
3, the priming concrete pile hole through the optimization frictional resistance that this construction equipment and method obtain is not only to have increased many radially male ports around cylindrical boring, increased the surface area on the stake whole body, and the raising pile body frictional resistance, the more important thing is that the projection surrounding soil crossed by radial compression and improve compactness, thereby the frictional resistance at this position is improved significantly.
4, the concrete pile body that obtains with the present invention contrasts the frictional resistance index as calculated and is higher than common stake 45-55%, therefore the frictional resistance by this type calculates, promptly satisfied requirement for bearing capacity, material, construction cost reduction have been saved again, reach the construction owner and reduce investment outlay, the purpose of profit improves in construction enterprises.
Description of drawings
Accompanying drawing 1 is the pile hydraulic expanding engineering vehicle plan view that castinplace pile is optimized frictional resistance;
Accompanying drawing 2 is side views of Fig. 1;
Accompanying drawing 3 is to use the job practices schematic diagram of pile hydraulic expanding equipment;
Accompanying drawing 4 is pile hydraulic expanding machine section of structures that two-way cylinder is arranged;
Accompanying drawing 5 is pile hydraulic expanding machine section of structures that unidirectional oil cylinder is arranged;
Accompanying drawing 6.1 is to optimize frictional resistance radial symmetric cast-in-place pile type schematic diagram;
Accompanying drawing 6.2 is to optimize the radially staggered cast-in-place pile type schematic diagram of frictional resistance;
Accompanying drawing 7.1 is hydraulic power unit and pile spreader bidirectional hydraulic oil cylinder oil circuit schematic diagram;
Accompanying drawing 7.2 is the unidirectional hydraulic jack oil circuit of hydraulic power unit and pile spreader schematic diagrames;
Accompanying drawing 8 is digital display schematic block diagram of pile hydraulic expanding engineering vehicle control system;
Accompanying drawing 9.1 is pile spreader bidirectional hydraulic cylinder structure schematic diagrames;
Accompanying drawing 9.2 is the unidirectional hydraulic jack structural representations of pile spreader;
The specific embodiment
Bored-concrete pile hydraulic expanding engineering vehicle, include truck chassis, crane, the pile hydraulic expanding machine, pile hydraulic expanding machine digital readout system, see Fig. 1,2: it is characterized in that: cylindrical pile hydraulic expanding machine 6a, 6b is by below dress holding clamp 7 for sleeping on the car body chassis 3 and the pile spreader bottom fixed mount 18 horizontal crane arms 10 that place between automobile cab 9 and the craneman's house 12, pile hydraulic expanding machine high-pressure oil passage 11 and oil circuit road wheel 8 are placed in crane arm 10 tops, and establish oil circuit lifting pulley 4 and crane lifting pulley 5 at the arm of derrick front end, be provided with crane arm landing support cylinder 13 in both sides, crane arm rear portion, the hoist engine 14 of crane, high-pressure oil pipe lifting elevator cylinder 15, hydraulic power unit 16; Pile hydraulic expanding machine 6a, 6b both sides are established electrical power control cabinet 1 and telescopic digital display Photocopy Room 2 respectively on the car body.Symmetry is established horizontal vertical hydraulic pressure and is supported 17 under the car body.The user mode of this bored-concrete pile hydraulic expanding engineering vehicle is seen Fig. 3, comprises that pile spreader 6a, the 6b in ground upper body and the underground hole is total to two parts, and crane arm 10 is by wire rope 19 and high-pressure oil passage together 11 lifting pile spreader 6a, 6b.
The pile hydraulic expanding machine 6a that two-way expansion stake awl is arranged, see Fig. 4: it is characterized in that fixedly the steel frame 611a cross section of two-way cylinder cylindrical shell 608 is square, the upper and lower end of steel frame 611a and flange 602 welderings are one, 602 side weeks of flange are established bolt hole, it is flange 602 sides of one that outer casing 612 is fixed on steel frame 611a by bolt 603, has size to be a bit larger tham the horizontal hole of expanding stake awl 607 outer rims on the cylindrical wall of outer casing 612.More piece steel frame 611a is connected with bolt 603 by flange 602 with outer casing and prolongs into pile spreader body 6a; The center of a plurality of steel frame 611a flatly be equipped with respectively oil cylinder cylindrical shell 608, perpendicular to steel frame 611a axially, two-way piston rod 617 relative 180 ° of ground are installed in the oil cylinder cylindrical shell 608, and oil cylinder cylindrical shell 608 usefulness bolts 603 laterally are fixed in the steel frame 611a; Piston rod 617 installed expand stake awl 607, fixing with hold-doun nut 609, make and expand stake awl 607 outside in the hole of casing 612, see Fig. 9 .1.
The pile spreader 6b of unidirectional hydraulic jack is arranged, see Fig. 5: the steel frame 611b cross section that it is characterized in that fixing unidirectional oil cylinder 615 is
Shape with unidirectional oil cylinder 615 amesiality fixing; More piece steel frame 611b connects prolongation and is combined into the pile spreader body.
No matter pile hydraulic expanding machine 6a, the 6b of two-way or unidirectional oil cylinder, wherein the high pressure oil nozzle of each two-way cylinder 608 or unidirectional oil cylinder 615 all is located at by high-pressure oil pipe 610 connections and becomes a high-pressure oil passage import 605, high-pressure oil passage outlet 606 after pile spreader 6a, 6b lift by crane the high-pressure oil passage flow divider of holding 604, and is connected through the fuel tank 701 of hydraulic power unit 16 on swivel joint on high-pressure oil pipe 610 and the hoist engine 15 716 and the car body.The hydraulic power unit 16 of the tailstock communicates; Answer back 606 usefulness flanges 602, bolt 603 of oil circuit import 605, oil circuit combined with outer casing 612 and be enclosed in lifting end, hang a device 601 above the flange 602, there is base 613 outer casing 612 lower ends, and there is level transportation steady pin 614 in its outside.Also have, the transmission line and the direct current supply line of two-way cylinder 608 or unidirectional oil cylinder 615 upper sensors are all passed by through hole 621 by same cable 622, and converge joint 710 through cable and introduce in the digital display control room 2 in the lifting end.
Hydraulic power unit and pile spreader bidirectional hydraulic expand the oil circuit setting of stake group 717a: see Fig. 7 .1: it is characterized in that two pistons 616 in opposite directions 180 ° be contained in the oil cylinder cylindrical shell 608, bidirectional piston bar 617 is equipped with expansion stake awl 607 separately, and a plurality of such oil cylinders are a pile spreader oil cylinder group 717a; Hydraulic power unit 16 has motor 714 to connect plunger displacement pump 706, establishes content gauge 702, air filter 703, cooler 704 in the hydraulic power unit 16; Establish oil filter 705, one way valve 708, oil return cleaner 713 in the high-pressure oil passage 11; Swivel joint 716 places also are provided with pressure measuring tie-in 711, electro hydraulic valve 712 and pressure meter 709.Also be equipped with the circuit of monitoring, Displaying Meter, electrically-controlled valve in the hydraulic power unit 16, all link to each other with control system center P LC in the computer.
The oil circuit setting of hydraulic power unit 16 and the unidirectional pile hydraulic expanding awl of pile spreader oil cylinder: see Fig. 7 .2: it is characterized in that the oil cylinder group 717b that pile spreader 6b has a plurality of unidirectional pile hydraulic expandings awls to constitute, an oil-in of each oil cylinder 619, an oil-out 620 all are connected with high-pressure oil pipe 610.The oil circuit remainder is provided with identical with the oil circuit that above-mentioned pile spreader 6a bidirectional hydraulic expands stake group 717a.
The two-way cylinder structure of pile hydraulic expanding machine 6a: see Fig. 9 .1: oil cylinder is a cylindrical shell, the two ends of two-way cylinder cylindrical shell 608 have flange 602 fixing, it is oil-out 620 that radial direction through hole is arranged on the barrel wall, oil cylinder cylindrical shell 608 middle part inwalls have one boss to constitute the obstruct band that prevents that piston from bumping against, boss and cylindrical shell are one, its internal diameter is a bit larger tham piston 616 diameters, and establishes oil-in 619 on the oil cylinder radial wall in the middle of the boss, and there is oil-out 620 oil cylinder cylindrical shell 608 both sides; Two-piston 616 ends are all established displacement transducer 623, the turnover before expanding stake awl 607 and piston rod 617 binding sites of the piston 616 and piston rod 617 centers of circle, piston rod 617 radial direction through hole is a radial hole for 90 °, flange 602 also has radial direction through hole 621, and the flange 603 that connects steel frame 611a and outer casing 612 also all has axial transmission line through hole.The sense line of displacement transducer 623 and direct current supply line are passed by through hole 621 in same cable 622, converge joint 710 through the cable that lifting is held and introduce among the control system PLC in digital display control rooms 2.
The pile hydraulic expanding machine that unidirectional hydraulic jack is arranged: its unidirectional oil cylinder 615 structures are seen Fig. 9 .2: oil cylinder is a cylindrical shell, a built-in piston 616, a piston rod 617, piston 616 ends are established displacement transducer 623, and the setting of transmission line is described identical with above-mentioned two-way cylinder Fig. 9 .1; The steel frame 611b of fixing unidirectional oil cylinder is a shape, and unidirectional oil cylinder 615 is fixing at the steel frame middle part; More piece steel frame 611b connects prolongation, and is fixed into pile spreader body 6b with outer casing 612.
The structure of the unidirectional oil cylinder of pile hydraulic expanding machine: see Fig. 9 .2: comprise a piston rod 617, the oil cylinder cylindrical shell 615 that it is characterized in that single piston rod is pot type piston cylinder bodies, two through holes are arranged on its barrel, be respectively oil-in 619, oil-out 620, connect oil pipe 610 and connect oil-in 605 and the oil return opening 606 that lifting is held respectively by flow divider 604.In opposite directions piston 616 ends are provided with displacement transducer 623 respectively in the oil cylinder cylindrical shell 615, all there is through hole 621 in the piston 616 and piston rod 617 centers of circle, through hole and before expanding stake awl 607 and piston rod 617 binding sites turnover be radial hole for 90 °, the flange 602 that connects steel frame 611 and outer casing 612 also all has the through hole 621 of axial transmission line.The transmission line of sensor 623 and direct current supply line pass in by through hole 621 in same cable 622, introduce among the control system PLC in digital display control room 2.
The control system of pile hydraulic expanding engineering vehicle, see Fig. 8: the operation procedure programming is located in the computer, the job state of pile spreader handled by digital display technique can in the computer in digital display control room 2, see and with the work data retrieval or by printer prints, this all is that prior art can realize.The signal external power supply is communicated with among Fig. 8, starting device enters SBR, and the circuit of the control program PLC in the digital display control room 2, computer screen, printer, hoist engine, hydraulic power unit etc. all enters working preparation state simultaneously; External power supply also provides D.C. regulated power supply to the displacement transducer on the oil cylinder; The change-over circuit, digital processing unit etc. of the control program PLC of connection are sent in sensor output through the analog-converted input module.Control program PLC sends instruction to oil cylinder and motor.
The pile hydraulic expanding machine specification of two-way cylinder is applicable to the above filling pile construction of stake footpath 1000mm.The pile hydraulic expanding machine of unidirectional oil cylinder is applicable to the castinplace pile in hole diameter 500-1000mm stake footpath, so the castinplace pile frictional resistance that pile spreader of the present invention can satisfy in worker China Democratic National Construction Association and the highway engineering is substantially optimized construction requirement.
Optimize the cast-in-place pile type of frictional resistance: at castinplace pile the rectangle stake awl that protrudes from a periphery is arranged on one's body, the paired stake awl a that is symmetrically distributed perpendicular to axle center, radial level, and the rectangle conical surface makes is cuboid stake type 20a, shown in Fig. 6 .1; Perhaps paired stake awl can also be radially staggered, asymmetric, and the stake awl 20b that axially is symmetrically distributed, shown in 6.2, what formed stake awl b also can the side's of being bodily form.Can also expand the edge of stake cone and make circle according to soil layer construction or Technology Need, the stake type that is squeezed into just is perpendicular to the column type of staking out.This is to select pile spreader for use according to the size of boring, and the castinplace pile in big footpath will be with the pile spreader of two-way cylinder, and the castinplace pile of small-bore is with the pile spreader of unidirectional oil cylinder.
Optimize the job practices of the cast-in-place pile type of frictional resistance, there is road, place and the space that allows the operation of this engineering truck the job site, after finishing pile foundation boring operation preparation, allow this car sail the job site into, it is characterized in that: the forward and backward hydraulic levels of 1, adjusting construction equipment supports 16, makes car body be in level; 2, connect electrical source of power, boom is erected, the pile hydraulic expanding machine is vertically hung in the castinplace pile boring; 3, in conjunction with order shown in the figure lower label 1-6 among Fig. 3: with hole, pile spreader 6 displacement pile position bottom: electric cranking hydraulic power unit 16, the hydraulic oil thrust that hydraulic power unit produces make oil cylinder 608 or 615 and all expand stake awl 607 and simultaneously the soil layer around the boring implemented horizontal squeeze job, the process of radially extending when all expand stake awl 607 is transmitted and is converted to data and mimic diagram in real time by separately sensor and is presented on the display screen in the digital display control room 2, and can be reported by printer prints simultaneously; 4, monitor desired reaming hole radial shape in real time, to the compacted ream operation of optimization frictional resistance of finishing a pile spreader height degree; After the operation perpendicular to the soil body of position, hole by the rectangular hole of compacted reality, guaranteeing that concrete pours into the back and forms the type of stake shown in Fig. 6 .1, Fig. 6 .2 pile hydraulic expanding awl is resetted, and satisfy the vertical-lift requirement; 5, go out the height of a pile hydraulic expanding fuselage with crane lifting, oil pipe lifting elevator cylinder is followed and is regained the part high-pressure oil pipe simultaneously, implements the operation of next joint; 6, crane subjob again rises to last active section with pile spreader, expands the stake awl hole week soil layer is implemented squeeze job; 7, pile hydraulic expanding machine and boom are put back to horizontal travel position, regain hydraulic pressure and support; 8, the operation in next stake hole is carried out in construction equipment displacement.
Adopt this expansion stake engineering truck and obtained to optimize the cast-in-place pile type of frictional resistance by the inventive method construction, see 3 among Fig. 3: the process of then carrying out cast-in-place concrete pile by the conventional operation of castinplace pile, soil layer through extruding is closely knit, the surface area of pile body has increased 45-50%, the corresponding thereupon raising of frictional resistance, thus reached the purpose that improves bearing capacity of single pile.
Claims (10)
1, a kind of bored-concrete pile hydraulic expanding engineering vehicle, be used to optimize the construction of the castinplace pile of frictional resistance, comprise automobile chassis, crane, the pile hydraulic expanding machine, pile hydraulic expanding machine digital display control system, it is characterized in that: cylindrical pile hydraulic expanding machine is by the horizontal crane arm below that places between driver's cabin and the crane pulpit of crouch dress holding clamp and bottom steady pin, crane arm landing support cylinder, the hydraulic power unit of pile spreader is fixed on the tailstock, pile spreader high-pressure oil passage road wheel is placed in boom top, and establishes the oil circuit lifting pulley at the crane arm front end, establish high-pressure oil passage lifting elevator cylinder at the tailstock; The pile spreader both sides are established electrical power control cabinet and telescopic digital display control room respectively on the car body.
2, the pile hydraulic expanding machine on a kind of bored-concrete pile hydraulic expanding engineering vehicle according to claim 1, it is characterized in that the pile hydraulic expanding machine has two-way expansion stake awl: the cross section square bar skeleton upper and lower end of fixed oil cylinder and flange weldering are one, flange upside week is established bolt hole, outer casing is by being bolted to the flange side, there is size to be a bit larger tham on the outer casing wall to expand the hole of stake awl outer rim, more piece steel frame to be connected with bolt by flange and prolongs into the pile spreader housing with outer casing; The center of a plurality of steel frames flatly be equipped with respectively the bidirectional piston bar the oil cylinder cylindrical shell, perpendicular to the square bar skeleton axially, between square bar skeleton and outer casing, piston rod installed to expand and bores, pass the hole on the outer casing; The high pressure oil nozzle of each oil cylinder all is communicated with the flow divider that is located at pile spreader lifting end by high-pressure oil pipe, become oil-in, oil return opening, and be connected with the hydraulic power unit of the tailstock, its outside is combined with outer casing by flange, bolt and seals the upper end, the flange top also has hoisting device, outer casing lower end has base to seal, and in the outside level transportation steady pin is arranged.
3, the pile hydraulic expanding machine on a kind of bored-concrete pile hydraulic expanding engineering vehicle according to claim 1, it is characterized in that the pile hydraulic expanding machine has the unidirectional stake awl that expands: the steel frame cross section of fixing unidirectional oil cylinder is
Shape, unidirectional oil cylinder steel frame partially in fixed-site; A plurality of steel frames connect prolongation, and are combined into the pile spreader body with outer casing; The center of a plurality of steel frames flatly be equipped with respectively the one-way piston bar the oil cylinder cylindrical shell, perpendicular to
The shape steel frame axially,
Between steel frame and the outer casing piston rod is installed expansion stake awl, pass the hole on the outer casing; The high pressure oil nozzle of each oil cylinder all is communicated with the flow divider that is located at pile spreader lifting end by high-pressure oil pipe, become oil-in, oil return opening, and be connected with the hydraulic power unit of the tailstock, its outside is combined with outer casing by flange, bolt and seals the upper end, the flange top also has hoisting device, outer casing lower end has base to seal, and in the outside level transportation steady pin is arranged.
4, bored-concrete pile hydraulic expanding engineering vehicle according to claim 2, the two-way cylinder structure that it is characterized in that the pile hydraulic expanding machine: oil cylinder is a cylindrical shell, its two ends are fixed by flange, it is oil-out that radial direction through hole is arranged on the end walls of oil cylinder cylindrical shell, the cylindrical shell intermediate inner wall has one boss to constitute the obstruct band that prevents that piston from bumping against, boss is a bit larger tham piston diameter, and establishes oil-in on the cylinder wall in the middle of the boss; All establish displacement transducer in the two-piston outer end, two-piston bar direction is opposite, the piston and the piston rod center of circle, piston rod radially and flange through hole is radially all arranged, the sense line of displacement transducer and direct current supply line are passed by through hole in same cable, converge joint through cable and introduce among the control system PLC in digital display control room.
5, bored-concrete pile hydraulic expanding engineering vehicle according to claim 3, the unidirectional cylinder structure that it is characterized in that the pile hydraulic expanding machine: two radial holes are arranged on the wall of oil cylinder cylindrical shell, be respectively oil-in and oil-out, establish a piston in the oil cylinder cylindrical shell, displacement transducer is established in the piston outer end; The piston and the piston rod center of circle, piston rod radially and flange footpath through hole is all arranged, the sense line of displacement transducer and direct current supply line are passed by through hole in same cable, converge joint through cable and introduce among the control system PLC in digital display control room.
6, bored-concrete pile hydraulic expanding engineering vehicle according to claim 2, it is characterized in that the oil circuit setting of the two-way cylinder and the hydraulic oil pumping plant of pile hydraulic expanding machine: oil cylinder cylindrical shell and two-way expansion stake awl thereof are an expansion stake group, the high-pressure oil pipe of a plurality of two-way expansion stake groups becomes an oil-in, an oil-out behind flow divider, the fuel tank by hydraulic power unit on swivel joint and the car body is connected; Have motor to connect plunger displacement pump on the hydraulic power unit, in establish content gauge, air filter, cooler; Oil filter, one way valve, oil return cleaner; The swivel joint place also is provided with pressure measuring tie-in, electro hydraulic valve and pressure meter; The instrument, the electrically-controlled valve that also be equipped with monitoring in the hydraulic power unit, show all link to each other with digital display control centre.
7, bored-concrete pile hydraulic expanding engineering vehicle according to claim 3, it is characterized in that the oil circuit setting of the unidirectional oil cylinder and the hydraulic oil pumping plant of pile hydraulic expanding machine: a plurality of unidirectional oil cylinders that expand the stake awl all become an oil-in, an oil-out into and out of high-pressure oil pipe behind flow divider, and the fuel tank by hydraulic power unit on swivel joint and the car body is connected; Have motor to connect plunger displacement pump on the hydraulic power unit, in establish content gauge, air filter, cooler; Oil filter, one way valve, oil return cleaner; The swivel joint place also is provided with pressure measuring tie-in, electro hydraulic valve and pressure meter; The instrument, the electrically-controlled valve that also be equipped with monitoring in the hydraulic power unit, show all link to each other with digital display control centre.
8, according to claim 2,3 described bored-concrete pile hydraulic expanding engineering vehicles, it is characterized in that expanding stake digital display control system: be communicated with external power supply, the dc source of operation electric power and sensor is provided for equipment, the operation procedure program of being compiled into is located among the control PLC of computer, the computer of pulpit connects the circuit of crane, digital display control room, hoist engine, pile spreader oil cylinder, oil circuit monitoring; External power supply also provides D.C. regulated power supply to the displacement transducer on the oil cylinder; Sensor output signal is sent into change-over circuit, the digital processing unit of the control program PLC of connection through the analog-converted input module, control program PLC send instruction to oil cylinder and motor with the displacement transducer data in the operation, handle by digital display technique and in the computer of digital display control room, to show and work data retrieval or printed report.
9, a kind of optimization friction resistance bored-concrete pile type of making by the described castinplace pile oilhydraulic engineering of claim 1 car, it is characterized in that at castinplace pile the rectangle stake awl that protrudes from a periphery being arranged on one's body, a: symmetry stake awl is symmetrically distributed perpendicular to axle center, radial level; B: the stake awl of symmetry can also be radially staggered, the axial symmetrical distribution.
10, a kind of job practices of using the described castinplace pile oilhydraulic engineering of claim 1 car, there is road, place and the space of the crane job that allows to be loaded with this equipment the job site, after finishing pile foundation boring operation preparation, allow this car put in place, it is characterized in that: the forward and backward hydraulic levels of 1, adjusting construction equipment supports, and makes crane be in level; 2, connect electrical source of power, boom is erected, the liquid pile spreader is vertically hung in the hole; 3, bottom: the electric cranking hydraulic power unit with pile spreader displacement pile hole, the high pressure thrust that hydraulic power unit produces makes oil cylinder and expands the stake awl and simultaneously the soil layer around the boring is implemented the radial compression operation, all processes of radially extending that expand the stake awl are transmitted and are converted to data and mimic diagram in real time by separately sensor and are presented on the display screen in the digital display control room, and can be simultaneously by digital display control room printed report; 4, after the operation perpendicular to the soil body of position, hole by the rectangular hole of compacted reality, pour into to guarantee concrete, monitor hole radial depth and shape in real time, to the whole compacted ream operation of finishing a pile spreader length; The pile hydraulic expanding awl is resetted, and satisfy the vertical-lift requirement; 5, go out the height of a pile hydraulic expanding machine with crane lifting, implement the operation of next joint; 6, crane loading rises to last active section with pile spreader, and stake hole week soil layer is implemented squeeze job; 7, pile hydraulic expanding machine and boom are put back to horizontal travel position, regain hydraulic pressure and support; 8, the operation in next stake hole is carried out in construction equipment displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101040393A CN1896382B (en) | 2006-01-09 | 2006-08-02 | Bored-concrete pile hydraulic expanding engineering vehicle, and its construction method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610042173.5 | 2006-01-09 | ||
| CN 200610042173 CN1793521A (en) | 2006-01-09 | 2006-01-09 | Optimizing frictional resistance bored concrete pile construction equipment and its bored concrete pule and construction method thereof |
| CN2006101040393A CN1896382B (en) | 2006-01-09 | 2006-08-02 | Bored-concrete pile hydraulic expanding engineering vehicle, and its construction method |
Publications (2)
| Publication Number | Publication Date |
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| CN1896382A true CN1896382A (en) | 2007-01-17 |
| CN1896382B CN1896382B (en) | 2011-06-08 |
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| CN2006101040393A Expired - Fee Related CN1896382B (en) | 2006-01-09 | 2006-08-02 | Bored-concrete pile hydraulic expanding engineering vehicle, and its construction method |
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| CN (1) | CN1896382B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806220A (en) * | 2015-04-24 | 2015-07-29 | 山东科瑞机械制造有限公司 | Fully-hydraulic driven fracturing equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2773178Y (en) * | 2004-12-29 | 2006-04-19 | 高媛霞 | Movable and foldable squeezing expander |
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2006
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806220A (en) * | 2015-04-24 | 2015-07-29 | 山东科瑞机械制造有限公司 | Fully-hydraulic driven fracturing equipment |
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| Publication number | Publication date |
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| CN1896382B (en) | 2011-06-08 |
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