CN106120790A - The special equipment of the compacted guncreting pile of high frequency and method - Google Patents
The special equipment of the compacted guncreting pile of high frequency and method Download PDFInfo
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- CN106120790A CN106120790A CN201610659534.4A CN201610659534A CN106120790A CN 106120790 A CN106120790 A CN 106120790A CN 201610659534 A CN201610659534 A CN 201610659534A CN 106120790 A CN106120790 A CN 106120790A
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- pile
- hammer stem
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/18—Placing by vibrating
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A kind of special equipment of the compacted guncreting pile of high frequency, including mechanical arm, dither, ring flange, vibration hammer stem and soil compaction tup, dither is arranged on the lower end of mechanical arm, the bottom of dither is fixing with ring flange to be connected, being connected with vibration hammer stem bottom ring flange, soil compaction tup is connected to vibrate the bottom of hammer stem；Vibration hammer stem includes vibrating hammer stem top and two, hammer stem bottom of vibration part, and two parts body of rod is together by a threaded connection.This special equipment and method combine, it is adaptable to the pile foundation engineering below weak soil, cohesive soil, sand, particle diameter 100mm following cobble rubble thin layer and level of ground water and foundation pit supporting project；Shortening construction period 50%, noiselessness pollutes, and exempts slurrying, outward transport and environmental pollution, solves sediment problem at the bottom of hole, it is to avoid a large amount of earth excavation transports and secondary pollution, economizes on resources, protects environment；Reduce construction cost, improve efficiency of construction, it is to avoid mud and sound pollution, accomplish environmental protection.
Description
Technical field
The equipment being applied to during the present invention relates to pile foundation construction, the compacted guncreting pile of a kind of high frequency special
Use Apparatus and method for.
Background technology
At present, known foundation pile pile-type has bored concrete pile and prefabricated pile, filling pile construction engineering method to have twist bit engineering method, positive and negative
Circulation industrial method, rotary drilling rig engineering method and impact holing engineering method；Construction of prefabricated piles engineering method has static pressure type and paddle type mill engineering method.Bored concrete pile
Construction needs mud off, produces a large amount of mud, and mud cost is high and need to dispose and transport outward, and produces environmental pollution；Prefabricated pile is because of hammer
Hit sound pollution and pile joint corrosion is bigger by limitation；Construction of diaphragm wall uses mud off equally, and to construction
Site requirements is higher.
Slurry drilled pile and rotation are dug bored concrete pile and are used rotation or impact holing, and diaphram wall uses chute forming machine to become
Hole, need to safeguard wall stability with mud, has collapse hole dangerous, and needing sediment problem at the bottom of disposal hole, filling concrete mode is under water
Perfusion, speed of fulfiling hole is slow.Pile is complete need to process the earth that in pile mud and stake holes, mud is taken out of, and mud amount is big, has mud
Slurry is disposed and outward transport is polluted.Another impact holing noise is relatively big, has noise pollution.
Concrete precast pile is hammering or static pressure mode pile, has loud noise to pollute during hammering pile, the most prefabricated
Stake needs pile extension when the long requirement of stake is bigger, and joint need to do preservative treatment, deals with improperly or building uses the time to connect time longer
Head can produce corrosion, is unfavorable for resisting horizontal force and the uplift force that earthquake load, wind load etc. cause, and the serious shadow of pile extension speed
Ring pile foundation construction progress, unfavorable to the duration.
Summary of the invention
In order to overcome said method present in the work progress not enough, the present invention one there is provided a kind of compacted pressure of high frequency
Filling the special equipment of stake, two there is provided the method carrying out the compacted guncreting pile of high frequency with this special equipment.
The technical solution used in the present invention is: the special equipment of the compacted guncreting pile of a kind of high frequency, including mechanical arm, high frequency vibrating
Dynamic device, ring flange, vibration hammer stem and soil compaction tup, wherein:
Described dither is arranged on the lower end of mechanical arm, and the bottom of dither is fixing with ring flange to be connected, ring flange
Bottom is connected with vibration hammer stem, and soil compaction tup is connected to vibrate the bottom of hammer stem；
Described vibration hammer stem includes vibrating hammer stem top and two, hammer stem bottom of vibration part, and two parts body of rod is threaded connection
Together.
Vibration hammer stem is the cavity structure of steel sleeve pipe composition, its body is provided with filling concrete hole, inside hammer stem
Cavity structure part constitute filling concrete passage.
The one end on vibration hammer stem top is outer wall threaded conical tube structure；One end of described vibration hammer stem bottom is
Inwall threaded conical tube structure；Vibration hammer stem top and vibration hammer stem bottom are linked together by helicitic texture.
The other end of vibration hammer stem bottom is outer wall threaded conical tube structure；One end of described soil compaction tup is interior
Wall threaded conical tube structure；Described vibration hammer stem bottom is linked together by helicitic texture with soil compaction tup.
Soil compaction tup is the hollow cavity structure of steel, and its free end is the square knot of central zone cone flap valve shoe
Structure.
Soil compaction tup is the hollow cavity structure of steel, and its free end is the rectangle knot of central zone cone flap valve shoe
Structure.
Rectangle soil compaction tup, its internal hollow structure constitutes stair-stepping filling concrete passage.
The parameter area of dither is: eccentric moment 40-85NM, and shake frequency 2800RPM, exciting force 36-75TON, main
Machine weight 1500-3500KG, line pressure 280-300BAR, flow rate of hydraulic system demand 155-255LPM, it is suitable for
Excavator weight 18-65YON, long dozen pile length 9-18M.
The method that the special equipment of the compacted guncreting pile of high frequency described in application carries out the compacted guncreting pile of high frequency, according to following work
Skill step is carried out:
1., according to special formation situation in design and construction drawing and geological mapping report, different geologic province is divided in the plane,
Carry out boundary alignment labelling, measurement and positioning circle pile center's point or other pile-type boundary lines；
2., start mobile unit, flap valve shoe align piles position, open dither, by vibration hammer stem, soil compaction tup and
Flap valve shoe is referring to soil compaction pore-forming in fixed pile, makes stake week and stake subsoil body carry out close reinforcing of shaking；
If needing base expanding and base expanding, shaking after absolute altitude at the bottom of stake until the flap valve shoe of soil compaction tup, dither stops vibration, promotes tup,
To adding the dry aggregate of hard at the bottom of hole, the most again depressing tup, open vibration, 2-3 time repeatedly, base expanding and base expanding molding, stopping is vibrated；
3., the flap valve shoe of soil compaction tup is connected to the concrete pump of this equipment in elevation location at the bottom of hole, startup, to vibration hammer stem
With concrete perfusion in the cavity structure of soil compaction tup, after concrete pump pressure reaches predetermined pressure, promote vibration hammer stem and hammer
Head, lifting speed is depending on concrete pump pressure, and flap valve shoe is promoted to during design of pile top absolute altitude stop pressure injection concrete,
Dither anti-plug steel reinforcement cage, shaped steel, complete once to fill stake, and mobile device to next position is constructed.
According to practice of construction demand, change the specification of soil compaction tup, it is achieved the various structures shapes such as circular, square, rectangle
The perfusion of the shaped pile of shape.
High frequency compacted guncreting pile method is dependent on the vibration force of top dither, the cavity knot formed by Steel Casing
Predetermined projected depth is sunk in vibration hammer stem, soil compaction tup and the integrally welded flap valve shoe of structure, forms sky in ground
Empty shape territory, uniform pressure concrete perfusion in the filling concrete passage in vibration hammer stem, soil compaction tup, slowly promote and shake
Dynamic hammer stem, makes concrete gush out from tup flap valve shoe opening, by top hammer head on concrete pumping pressure and flap valve shoe
Form pressure injection, carry to protection pile crown designed elevation, complete foundation pile construction.
This special equipment and method combine, it is adaptable to weak soil, cohesive soil, sand, the following cobble of particle diameter 100mm are broken
Pile foundation engineering below stone thin layer and level of ground water and foundation pit supporting project；Can shorten construction period 50%, noiselessness pollutes, and exempts from
Except slurrying, outward transport and environmental pollution, it is possible to resolve sediment problem at the bottom of hole, it is to avoid a large amount of earth excavation transports and secondary pollution,
Economize on resources, protect environment；Reduce construction cost, improve efficiency of construction, it is to avoid mud and sound pollution, accomplish environmental protection.
Construction method advantage is as follows:
1., the compacted dry pore-forming of high frequency, not by Effect of Underground Water Level；
2., speed of fulfiling hole fast, dither ground extruding stake week and stake subsoil body, improve ultimate frictional resistance and the extreme end resistance of stake
Power, is effectively improved vertical ultimate bearing capacity of single pile；
3., pressure of the hole in the bottom fills concrete pile, it is to avoid collapse hole and necking down harm；
4., the steel body material such as dither anti-plug steel reinforcement cage, shaped steel；
5., the shaped piles such as round stake, square pile, rectangular pile can be become；
6., it is applied in pile foundation engineering, can expand at the bottom of dither compacted formation hole by sleeve pipe at pre-fill hard aggregate at the bottom of hole
Head, improves vertical ultimate bearing capacity of single pile；
7., construction period 50% can be shortened；
8., noise pollution little, slurrying, outward transport and environmental pollution can be exempted；
9., sediment problem at the bottom of hole can be solved；
10., can avoid pile be unearthed a large amount of earth excavation transport and secondary pollution；
Present invention focuses on identical engineering geology and hydrogeologic condition, identical stake footpath and stake elongate member Single Pile vertical limit
The raising of standard value of bearing capacity, it is to avoid the problems such as mud in formation of pile and noise pollution, improves efficiency, protects environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of special equipment in the present invention.
Fig. 2 is vibration hammer stem superstructure schematic diagram in the present invention.
Fig. 3 is soil compaction hammehead structure schematic diagram in the present invention.
Fig. 4 is the right view of Fig. 3.
Fig. 5 is rectangle soil compaction hammehead structure schematic diagram in the present invention.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is the profile of rectangle soil compaction tup in the present invention.
Fig. 8 is vibration hammer stem substructure schematic diagram in the present invention.
Fig. 9 is the parameters adjusting icon of medium-high frequency vibrator of the present invention.
In figure: mechanical arm 1, dither 2, ring flange 3, filling concrete hole 4, vibrate hammer stem top 5, concrete fills
Note passage 6, soil compaction tup 7, flap valve shoe 8, vibrate hammer stem bottom 9.
Detailed description of the invention
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Seeing accompanying drawing 1-8, this special equipment disclosed in this invention is applicable to weak soil, cohesive soil, sand, particle diameter
Pile foundation engineering below below 100mm cobble rubble thin layer and level of ground water and foundation pit supporting project.The invention discloses one
High frequency compacted guncreting pile method for constructing foundation pile and special equipment, its main technique is that the compacted dry pore-forming of high frequency, dither are compacted
Reinforcing pile week and pile-end soil body, pressure of the hole in the bottom fill the steel body materials such as concrete pile, dither anti-plug steel reinforcement cage, shaped steel.This
Engineering method can become the shaped piles such as round stake, square pile, rectangular pile, can fast pore-creating, stake week and pile-end soil body are shaken close reinforcing, improve
The ultimate frictional resistance of stake and utmost lateral friction, be effectively improved vertical ultimate bearing capacity of single pile；It is applied in pile foundation engineering, can be at base
Pre-fill hard aggregate at the bottom of stake holes, enlarged footing at the bottom of dither compacted formation hole, improves vertical ultimate bearing capacity of single pile；It is applied to base
Hole support engineering rectangular stake can substitute diaphram wall.
The special equipment of the compacted guncreting pile of this high frequency, including mechanical arm 1, dither 2, ring flange 3, concrete fills
Orifice 4, vibrates hammer stem top 5, filling concrete passage 6, soil compaction tup 7, flap valve shoe 8, vibrates hammer stem bottom 9.
Dither is arranged on the lower end of mechanical arm, and the bottom of dither is fixing with ring flange to be connected, ring flange
Bottom is connected with vibration hammer stem, and soil compaction tup is connected to vibrate the bottom of hammer stem；Vibration hammer stem includes vibrating hammer stem top and shaking
Dynamic two, hammer stem bottom part, two parts body of rod is together by a threaded connection.
Vibration hammer stem is the cavity structure of steel sleeve pipe composition, its body is provided with filling concrete hole, inside hammer stem
Cavity structure part constitute filling concrete passage.
Preferably: the one end on vibration hammer stem top is outer wall threaded conical tube structure；Described vibration hammer
One end of bar bottom is inwall threaded conical tube structure；Helicitic texture is passed through in vibration hammer stem top and vibration hammer stem bottom
Link together.The other end of vibration hammer stem bottom is outer wall threaded conical tube structure；One end of described soil compaction tup
For inwall threaded conical tube structure；Described vibration hammer stem bottom is linked together by helicitic texture with soil compaction tup.
When actually used, between vibration upper and lower two parts of hammer stem, between vibration hammer stem bottom and soil compaction tup, straight tube can also be used
The screw connection structure of type.
Soil compaction tup is the hollow cavity structure of steel, and its free end is the square knot of central zone cone flap valve shoe
Structure, such as Fig. 4；Or the rectangle structure that its free end is central zone cone flap valve shoe, such as Fig. 6.Rectangle soil compaction tup,
Its internal hollow structure constitutes stair-stepping filling concrete passage, such as Fig. 5.
As preferably, the parameter area of dither is: eccentric moment 40-85NM, and shake frequency 2800RPM, exciting force 36-
75TON, main frame weight 1500-3500KG, line pressure 280-300BAR, flow rate of hydraulic system demand 155-
255LPM, is suitable for excavator weight 18-65YON, long dozen pile length 9-18M.Concrete match parameter is shown in accompanying drawing 9.
Apply the method that the special equipment of the compacted guncreting pile of this high frequency carries out the compacted guncreting pile of high frequency, according to following processing step
Carry out:
1., according to special formation situation in design and construction drawing and geological mapping report, different geologic province is divided in the plane,
Carry out boundary alignment labelling, measurement and positioning circle pile center's point or other pile-type boundary lines；
2., start mobile unit, flap valve shoe align piles position, open dither, by ring flange and and the method for link
The special equipment that blue dish is supporting, then referring to soil compaction pore-forming in fixed pile by vibration hammer stem, soil compaction tup and flap valve shoe, make stake
Week and stake subsoil body carry out close reinforcing of shaking；
If needing base expanding and base expanding, shaking after absolute altitude at the bottom of stake until the flap valve shoe of soil compaction tup, dither stops vibration, promotes tup,
To adding the dry aggregate of hard at the bottom of hole, the most again depressing tup, open vibration, 2-3 time repeatedly, base expanding and base expanding molding, stopping is vibrated；
3., the flap valve shoe of soil compaction tup is connected to the concrete pump of this equipment in elevation location at the bottom of hole, startup, to vibration hammer stem
With concrete perfusion in the cavity structure of soil compaction tup, after concrete pump pressure reaches predetermined pressure, promote vibration hammer stem and hammer
Head, lifting speed is depending on concrete pump pressure, and flap valve shoe is promoted to during design of pile top absolute altitude stop pressure injection concrete,
Dither anti-plug steel reinforcement cage, shaped steel, complete once to fill stake, and mobile device to next position is constructed.
According to practice of construction demand, change the specification of soil compaction tup, it is achieved the various structures shapes such as circular, square, rectangle
The perfusion of the shaped pile of shape.
High frequency compacted guncreting pile method is dependent on the vibration force of top dither, the cavity knot formed by Steel Casing
Predetermined projected depth is sunk in vibration hammer stem, soil compaction tup and the integrally welded flap valve shoe of structure, forms sky in ground
Empty shape territory, uniform pressure concrete perfusion in the filling concrete passage in vibration hammer stem, soil compaction tup, slowly promote and shake
Dynamic hammer stem, makes concrete gush out from tup flap valve shoe opening, by top hammer head on concrete pumping pressure and flap valve shoe
Form pressure injection, carry to protection pile crown designed elevation, complete foundation pile construction.
Contrast with other pile-type and construction method:
(1) with slurry drilled pile, bored concrete pile is dug in rotation and diaphram wall compares:
1., ultimate frictional resistance and utmost lateral friction compare
Slurry drilled pile and rotation dig bored concrete pile ultimate frictional resistance and the used parameter of utmost lateral friction be upper table 5.3.5-1 and
5.3.5-2 the data of " mud off bores (punching) hole stake " in, the compacted guncreting pile of this engineering method high frequency is soil compaction mode pore-forming, is used
Parameter is " concrete precast pile " parameter, and as can be seen from the table, in the case of same soil layer, the used parameter of this engineering method is greater than
Slurry drilled pile and rotation are dug bored concrete pile and are used parameter.
This engineering method another can the shaped pile such as squarely, rectangle, relatively big by girth in the case of waiting stake end area, namely the total side of the limit
Resistance Qsk is bigger.(such as stake footpath 400 circle stake, girth u=3.14*0.4=1.256m, area A=0.1256；As area A=
When 0.1256, square stake side length b=0.3544m, girth u=0.3544*4=1.4176m.Longer 1.4176-than circular perimeter
1.256=0.1616m.)
2., pile-formation process compares
Slurry drilled pile and rotation are dug bored concrete pile and are used rotation or impact holing, and diaphram wall uses chute forming machine pore-forming, need
Safeguarding wall stability with mud, have collapse hole dangerous, needing sediment problem at the bottom of disposal hole, filling concrete mode is underwater grouting,
Speed of fulfiling hole is slow.Pile is complete need to process the earth that in pile mud and stake holes, mud is taken out of, and mud amount is big, has mud to dispose
Pollute with outward transport.Another impact holing noise is relatively big, has noise pollution.
The compacted guncreting pile of this engineering method high frequency uses dither soil compaction mode pore-forming, pressure of the hole in the bottom concrete perfusion, pile
Speed is fast.There is not sediment problem at the bottom of collapse hole and hole, mud contamination is zero, does not substantially have noise.
(2) compare with concrete precast pile and dry operation drilled pile:
1., ultimate frictional resistance and utmost lateral friction compare
The compacted guncreting pile of this engineering method high frequency is vibration soil compaction mode pore-forming, and used parameter is " concrete precast pile " parameter phase
With, higher than " dry operation drilled pile " parameter；The compacted guncreting pile of high frequency can do and expand at the bottom of hole, bores than concrete precast pile and dry operation
Total utmost lateral friction Qpk is big in hole stake.
2., pile-formation process compares
Concrete precast pile is hammering or static pressure mode pile, has loud noise to pollute during hammering pile, and another prefabricated pile exists
Stake long requirement bigger time need pile extension, joint need to do preservative treatment, deal with improperly or building use the time longer time joint meeting
Produce corrosion, be unfavorable for resisting horizontal force and the uplift force that earthquake load, wind load etc. cause, and pile extension speed has a strong impact on stake
Base construction speed, unfavorable to the duration.
With rotary drilling (such as CFG stake) or the mode pore-forming of manually digging hole in dry operation drilled pile pore forming process, in stake holes
Undisturbed soil is unwrapped or digs out, and can produce a large amount of earthwork, has earthwork outward transport and spoir to pollute, and at the bottom of stake, absolute altitude is below level of ground water
The most all not being suitable for during precipitation, soft soil layer has collapse hole, necking down harm, and another artificial digging pile also has speed of application slow, dangerous
The feature such as greatly, economic benefit is low.
Claims (11)
1. the special equipment of the compacted guncreting pile of high frequency, it is characterised in that include mechanical arm, dither, ring flange, shake
Dynamic hammer stem and soil compaction tup, wherein:
Described dither is arranged on the lower end of mechanical arm, and the bottom of dither is fixing with ring flange to be connected, ring flange
Bottom is connected with vibration hammer stem, and soil compaction tup is connected to vibrate the bottom of hammer stem；
Described vibration hammer stem includes vibrating hammer stem top and two, hammer stem bottom of vibration part, and two parts body of rod is threaded connection
Together.
The special equipment of the compacted guncreting pile of high frequency the most according to claim 1, it is characterised in that described vibration hammer stem is
The cavity structure of steel sleeve pipe composition, its body is provided with filling concrete hole, and the cavity structure part within hammer stem is constituted
Filling concrete passage.
The special equipment of the compacted guncreting pile of high frequency the most according to claim 2, it is characterised in that described vibration hammer stem top
One end be outer wall threaded conical tube structure；One end of described vibration hammer stem bottom is the threaded conical tube of inwall
Structure；Vibration hammer stem top and vibration hammer stem bottom are linked together by helicitic texture.
The special equipment of the compacted guncreting pile of high frequency the most according to claim 2, it is characterised in that described vibration hammer stem bottom
The other end be outer wall threaded conical tube structure；One end of described soil compaction tup is inwall threaded conical tube knot
Structure；Described vibration hammer stem bottom is linked together by helicitic texture with soil compaction tup.
The special equipment of the compacted guncreting pile of high frequency the most according to claim 1, it is characterised in that described soil compaction tup is steel
The hollow cavity structure of system, its free end is the square structure of central zone cone flap valve shoe.
The special equipment of the compacted guncreting pile of high frequency the most according to claim 1, it is characterised in that described soil compaction tup is steel
The hollow cavity structure of system, its free end is the rectangle structure of central zone cone flap valve shoe.
The special equipment of the compacted guncreting pile of high frequency the most according to claim 1, it is characterised in that described rectangle soil compaction is hammered into shape
Head, its internal hollow structure constitutes stair-stepping filling concrete passage.
The special equipment of the compacted guncreting pile of high frequency the most according to claim 1, it is characterised in that described dither
Parameter area is: eccentric moment 40-85NM, and shake frequency 2800RPM, exciting force 36-75TON, main frame weight 1500-3500KG, liquid
Pressure operating pressure 280-300BAR, flow rate of hydraulic system demand 155-255LPM, it is suitable for excavator weight 18-65YON,
Long dozen pile length 9-18M.
9. to carry out high frequency compacted for the special equipment of the compacted guncreting pile of high frequency applied in claim 1-8 described in any one
The method of guncreting pile, it is characterised in that carry out according to following processing step:
1., according to special formation situation in design and construction drawing and geological mapping report, different geologic province is divided in the plane,
Carry out boundary alignment labelling, measurement and positioning circle pile center's point or other pile-type boundary lines；
2., start mobile unit, flap valve shoe align piles position, open dither, by vibration hammer stem, soil compaction tup and
Flap valve shoe is referring to soil compaction pore-forming in fixed pile, makes stake week and stake subsoil body carry out close reinforcing of shaking；
If needing base expanding and base expanding, shaking after absolute altitude at the bottom of stake until the flap valve shoe of soil compaction tup, dither stops vibration, promotes tup,
To adding the dry aggregate of hard at the bottom of hole, the most again depressing tup, open vibration, 2-3 time repeatedly, base expanding and base expanding molding, stopping is vibrated；
3., the flap valve shoe of soil compaction tup is connected to the concrete pump of this equipment in elevation location at the bottom of hole, startup, to vibration hammer stem
With concrete perfusion in the cavity structure of soil compaction tup, after concrete pump pressure reaches predetermined pressure, promote vibration hammer stem and hammer
Head, lifting speed is depending on concrete pump pressure, and flap valve shoe is promoted to during design of pile top absolute altitude stop pressure injection concrete,
Dither anti-plug steel reinforcement cage, shaped steel, complete once to fill stake, and mobile device to next position is constructed.
The method that application specific equipment the most according to claim 9 carries out the compacted guncreting pile of high frequency, it is characterised in that root
According to practice of construction demand, change the specification of soil compaction tup, it is achieved the shaped pile of the various structures shapes such as circular, square, rectangle
Perfusion.
The method that 11. application specific equipment according to claim 9 carry out the compacted guncreting pile of high frequency, it is characterised in that institute
The high frequency compacted guncreting pile method stated is dependent on the vibration force of top dither, the cavity structure formed by Steel Casing
Predetermined projected depth is sunk in vibration hammer stem, soil compaction tup and integrally welded flap valve shoe, forms the sky of sky in ground
Shape territory, uniform pressure concrete perfusion in the filling concrete passage in vibration hammer stem, soil compaction tup, slowly promote vibration hammer
Bar, makes concrete gush out from tup flap valve shoe opening, is formed by top hammer head on concrete pumping pressure and flap valve shoe
Pressure injection, carries to protection pile crown designed elevation, completes foundation pile construction.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542081A (en) * | 2017-08-29 | 2018-01-05 | 中冶集团武汉勘察研究院有限公司 | The installation method of a kind of deep yard drain plate that rockfills and for the hole-forming device in this method |
| CN109024544A (en) * | 2018-07-02 | 2018-12-18 | 中国铁路总公司 | The hydraulic high frequency compaction method of collapsible loess tunnel substrate |
| CN117449290A (en) * | 2023-12-22 | 2024-01-26 | 陕西建工第十二建设集团有限公司 | Spray expansion cone table pressure grouting pile construction control system |
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Application publication date: 20161116 |