CN102392447B - Given force variable stiffness discrete material pile ramming and expanding machine and application thereof - Google Patents
Given force variable stiffness discrete material pile ramming and expanding machine and application thereof Download PDFInfo
- Publication number
- CN102392447B CN102392447B CN201110276036.9A CN201110276036A CN102392447B CN 102392447 B CN102392447 B CN 102392447B CN 201110276036 A CN201110276036 A CN 201110276036A CN 102392447 B CN102392447 B CN 102392447B
- Authority
- CN
- China
- Prior art keywords
- pile
- stake
- loose material
- enlarged footing
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a given force variable stiffness discrete material ramming and expanding machine which comprises a chassis, a traveling part, a control system, a hoist system, a portal steel frame and a pile pipe ramming and expanding system. The pile pipe ramming and expanding system comprises a straight-through ramming hammer head, a hammer cushion and inner and outer sleeve pile pipes. The portal steel frame for supporting and stabilizing the inner and outer sleeve pile pipes is arranged on the chassis. A telescopic pull rod for controlling a piling angle is also connected onto the portal steel frame. The hoist system comprising lifting inner and outer pile pipes, a lifting straight-through ramming hammer head and a lifting vibrator part and the control system comprising an electric motor and an electrohydraulic linking and illuminating device are also arranged on the chassis. The straight-through ramming hammer head is positioned at the upper part of double layers of pile pipes in the sleeve structure. The given force variable stiffness discrete material ramming and expanding machine not only can be used for piling a multi-section enlarged head discrete material flexible pile, but also can be used for piling a concrete rammed and expanded rigid pile. The machine can be suitable to be applied to piling of a new construction, an extension project, a reconstruction project and the engineering for treating pathological accidents on weak or poor foundations such as interlayer soft clay, loose fine sandy soil, plain fill, miscellaneous fill, collapsed loess and the like.
Description
Technical field
The invention belongs to the machinery of soft foundation processing and the category of application ground foundation engineering.Particularly be applicable to processing the consolidation process of the weaknesses such as strap clamp stratiform bury, loose powder fine sand soil, plain fill, miscellaneous fill, collapsible loess foundation or unfavorable foundation soil.
Background technology
Ground both domestic and external is processed reinforcement means even thousands of kinds of hundreds of kinds.For reinforcing above-mentioned soft layer or loose unfavorable foundation, traditional processing method is all single processing method.According to its consolidation process mechanism, generally comprise cushion (claiming again displacement method), density method, drainage, cementing method, reinforcement method and underpin method (method only the ground base enforcement house of correction of old building being used).Although the concrete engineering method of all kinds of processing methods can be selected for different soil conditions, treatment effeciency is often on the low side, thereby the technical economic benefit that seems is not high; Importantly: the very difficult consolidation process requirement meeting rapidly and efficiently of these single engineering methods, or because powerful vibration or the high noisy of construction machinery cause building ground, underground contiguous facility impact to be subject to too greatly more restriction.
In addition, the constant appearance of foundation pathology accident, also needs the Treatment Methods that has quick reinforcing to remedy.The engineering method of mechanical matching of the present invention also can meet the technical requirements of this respect.The machine will become a kind of construction new tool of the rapidly and efficiently method of curing foundation pathology accident.
The method of giving power effect composite foundation processing weakness or unfavorable foundation soil is the method that present inventor proposes at first.
ZL20051009473.5 multi-point stress vibrating-punching combined compacting method, for consolidation process hydraulic reclamation loosening sand ground.Adopt associating vibroflotation method and two kinds of reinforcement means of vibroroller cmpacting compacting method of multi-point stress vibration to organically combine, mate and integrate; The combined compacting method of multi-point stress vibration applies the power effect of giving to its loose sand skeleton, applies the impulse force that shakes, exciting force, resonance power, extruding force and grinding pressure; Facilitate the saturated sand soil body to produce predeformation and pre-sedimentation, after service load is added up, issuable most of total settlement is eliminated in consolidation process process, makes it foundation soil and can meet better after treatment the load metamorphism requirement of engineering operational phase; For the filling sand foundation of reinforcing port works, it " gives dynamics ", and standard can be controlled in 0.85～0.65 scope, and completes the processing of vibroroller cmpacting ground extruding within rear 1～7 day time of the punching of shaking.
ZL200610088324.0 loose material hydrostatic pressure stake given-force construction method, for reinforcing the consolidation process of saturated soft clay, loose powder fine sand soil, plain fill, miscellaneous fill and collapsible loess foundation.This method is that flexible pile composite foundation is made in the power of the giving effect forming with static pressure.Adopt Static pressure pile driver piling pipe, applying static pressure by hydraulic means is pressed into pile pipe in the soil layer of projected depth, then tube drawing, one section of one section of ground feeds intake outside pipe, by one section one section ground static pressure, finally form a pile by " giving dynamics " control criterion of design in advance, constantly telephone-moving repeats above piling process, has finally just formed static pressure loose material flexible pile composite foundation.This engineering method also can be punished foundation pathology Engineering Accident.
Because the power of existing Static pressure pile driver only has 30T and two kinds of models of 40T, it the static pressure that produces of the counterforce device that provides be subject to certain limitation, and the length of piling that the characteristic load bearing capacity of 12m and the composite foundation that provides is provided is also limited.
The present invention is that the dynamic stress of utilizing the power of giving to become rigidity Drop hammer pile driver is come pore-forming and system stake, no matter at pile length processed and the aspects such as Bearing Capacity of Composite Foundation characteristic value are provided, is all better than the Static pressure pile driver of above-mentioned loose material hydrostatic pressure stake given-force construction method; And ability aspect punishment pathology Engineering Accident is also more powerful.The present invention is the construction new tool of this ground process field.
Summary of the invention
The present invention seeks to: based on given-force engineering method for multisection expanded head discrete material pile composite foundation, the supporting power of giving of system stake with it that proposes becomes rigidity loose material Drop hammer pile driver.A construction technology, a supporting construction machinery, their organic compositions composite foundation stabilization new technology engineering method and enforcement means.
The present invention seeks to realize like this: the power of giving becomes rigidity loose material and rams expansion machine, formed by following six major parts: chassis (comprising four stabilizer foots and counterweight), ground-engaging element (comprising telephone-moving walking stride and rubber tire wheel shaft and tire), portal frame is (for supporting and anchor spike guard system, also be connected with the telescopic lever of controlling piling angle), compaction pile guard system (comprising punching hammer and pallet and inside and outside sleeve pile pipe etc.), hoist system (comprises and promotes inside and outside pile pipe, promoting vertically-displacable rams tup and promotes electromagnetic shaker parts etc.) and control system (comprise motor, liquid be electrically connected moving and lighting device etc.).Expand pile pipe system and comprise that vertically-displacable rams tup and pallet and inside and outside sleeve pile pipe, for supporting and the portal frame of stable inside and outside sleeve pile pipe is contained in chassis, the telescopic lever of controlling piling angle also connects on portal frame, comprises promoting inside and outside pile pipe, promoting vertically-displacable and ram tup and promote the hoist system of electromagnetic shaker parts and comprise that motor, liquid are electrically connected and be movingly also contained on chassis with the control system of lighting device; Vertically-displacable is rammed tup and is positioned at the double-deck pile pipe of tube-in-tube structure top.
The total length of the inner and outer pipes tube-in-tube structure of compaction pile pipe is 15～30m, and the total length of system stake is that 15～30m is long.
The diameter of pile pipe is φ 300mm ,-φ 600mm, and it is that the vertically-displacable that 30～60kN is heavy is rammed hammer that vertically-displacable is rammed tup.
A present invention's system of starting shooting is stablized flexibly; Ram to expand and made every pile, pack up and support four legs, put down stride walking, telephone-moving is all around all very convenient; Finish piling, on the glue shaft that need only connect on chassis, load onto tire, can have been dragged away by a trailer.
Compaction pile pipe is inner and outer pipes tube-in-tube structure, and the total length of system stake is that 15～30m is long, to adapt to construction project to be built composite foundation " effective length " needs.
The hammer of ramming on the double-deck pile pipe of tube-in-tube structure top is that the vertically-displacable that 30～50kN is heavy is rammed hammer, can adapt to soil layer situation and effectively regulate pile tamping energy.
When its pile driving construction operation processed, stretch out four supporting legs by both sides; When system stake displacement, revenue and expenditure supporting leg, puts down both sides stride, can all around remove; A building site piling construction completes; Pack up supporting leg, on base plate glue wheel shaft, load onto four tires, can conveniently drag away with trailer.
Vertically-displacable is rammed tup and is positioned at the double-deck pile pipe of tube-in-tube structure top, after every joint enlarged footing completes, only rams the inner tube of the double-deck pile pipe of tube-in-tube structure while ramming enlarged footing pile cutoff, and pile pipe is hollow-core construction.The diameter of pile pipe is φ 300-600, and the diameter of typical pile pipe is φ 400mm, φ 450mm and φ 500mm.
When this machine made pile driving construction, be to utilize the power of giving of the present invention to become the dynamic stress action effect of rigidity loose material Drop hammer pile driver, this power of giving effect is that a machine is rammed ramming, push, impacting of hammer and rammed the superposition of the comprehensive function effect expanding.
DHK-40 type, DHK-45 type and the DHK-50 type power of giving becomes rigidity loose material Drop hammer pile driver, and their corresponding pile stake footpaths are respectively 400mm, 450mm and 500mm; The maximum length of their piles is respectively 15m, 18m and 20m.Their hammer of ramming is heavily respectively 30kN, 40kN and 50kN.Their power-performances can meet the stake demand processed of the applicable engineering range of application of this machinery completely.
The leg of this loose material Drop hammer pile driver absorbs at ordinary times in stake machine chassis, when stretching out four supporting legs to both sides by stake hole is in place, and to whole stake machine firm supporting, and the stability that applies of power while guaranteeing that expansion piling work is rammed in immersed tube pore-creating.Four supporting legs of revenue and expenditure after complete each pile of injection, by putting down both sides walking stride, telephone-moving is all around to position, next construction stake hole.All around telephone-moving is very convenient.Finish loose material compaction pile construction, pack up both sides walking stride, on the wheel shaft that need only connect on chassis, load onto tire, just this loose material Drop hammer pile driver is conveniently dragged away by a trailer, do not need additional flat car to load and transport.
The power of giving becomes rigidity loose material Drop hammer pile driver purposes: have following two kinds of piling functions.
(1) ram the technology characteristics that spreads the stake of grain material flexibility:
(2) give power and become the technology characteristics of rigidity compaction pile
Pass through hoist engine, startup vertically-displacable is rammed hammer die-cut pile pipe extruding is sunk in soil layer and started the soil body to produce the power effect of giving, so rear lift tube, throw in the loose material of design grating, implement to ram, a series of dynamic stress effects such as extruding, and one section one section is rammed expansion pile; Next hole of telephone-moving is in place, repeats ramming of above each pile and expands formation of pile; Ownership stake completes the machine of tearing open and removes.
This loose material Drop hammer pile driver repeats operation in the whole place of planning to build by the expansion process of ramming of every pile, complete the piling work of all piles of design stake position, finally spread 200～500mm ground mattress layer on stake top, just form the more piece enlarged footing loose material pile composite foundation of construction project to be built, to facilitate construction project to be built application, i.e. direct construction of buildings basis just thereon, is used to bear superstructure load.The composite foundation that the stake processed of this loose material forms, is applicable to the field construction of planning to build of the weaknesses such as sandwich-like bury, loose powder fine sand soil, plain fill, miscellaneous fill and collapsible loess or unfavorable foundation soil.
This loose material compaction pile construction, both can utilize the power of giving to become rigidity loose material Drop hammer pile driver and complete, and also can utilize two same model stake machines to carry out the concurrent job construction operation mode that staggers.No matter unit operation, or the double machine parallel operation of staggering, all along oneself half I-shaped route " jumping hole " construction.The loose material of the design proportioning used of driving piles can be started route quantitatively stacking on the way along stake machine according to amount of calculation, can realize civilized construction, and complete of work is clear.
When loose material Drop hammer pile driver construction of the present invention, both can ram and expand the straight stake of more piece enlarged footing loose material, and can ram again and expand more piece enlarged footing loose material taper pile; Both can ram the stake of diffusion grain material flexibility, and can ram again and expand concrete rigid pile (be generally used in stake top and go up a joint most).The inclination angle of bowing of this loose material compaction pile can effectively be controlled between 0～20 °, can be used for the ground stabilization of house and road foundation and the pathology Engineering Accident processing of foundation.
A) DHK-40 type, DHK-45 type and the DHK-50 type loose material Drop hammer pile driver of can be made into of the present invention, can apply respectively the dynamic stress of 30kN, 40kN and 50kN, and the more piece enlarged footing loose material stake that can make respectively φ 400mm, φ 450mm and φ 500mm, its maximum length of pile can reach respectively 15m, 18m and 20m.They can meet the character requirement of flexible pile composite foundation that loose material is made completely.
B) DHK-40 type of the present invention, DHK-45 type and DHK-50 type loose material Drop hammer pile driver, use this machine operation, can complete the whole processing performance targets of more piece enlarged footing bulk cargo material pile composite foundation given-force construction method, overall application is given power concept, give power technology and give power action principle and go solution to give power formation of pile, guarantee the segmentation of every loose material compaction pile energy, merogenesis reaches the prior design standard of " giving dynamics ", make the every loose material compaction pile of making all can become the loose material compaction pile of complete more piece enlarged footing, to strengthen the quick consolidation effect that gives the pile quality of power effect and the composite foundation of this formation.
C) DHK-40 type of the present invention, DHK-45 type and DHK-50 type loose material Drop hammer pile driver, use the given-force engineering method for multisection expanded head discrete material pile composite foundation mating, can effectively process more above-mentioned weaknesses or unfavorable foundation great soil group to realize quick reinforcing, can realize again the correction righting of some building is resetted and cures the pathology Engineering Accident of repairing foundation.
D) DHK-40 type of the present invention, DHK-45 type and DHK-50 type loose material stake machine, can guarantee in the construction technological process of the above-mentioned weakness of processing or unfavorable foundation soil property, effectively implement " giving dynamics " control criterion of its 0.95～0.75 scope, especially can effectively guarantee that for more situation it " gives dynamics " and is controlled at 0.90～0.78 scope, guarantee its reinforcing effect fast.
E) DHK-40 type of the present invention, DHK-45 type and DHK-50 type loose material Drop hammer pile driver, use the given-force engineering method for multisection expanded head discrete material pile composite foundation of coupling in the above-mentioned weakness of consolidation process or unfavorable foundation great soil group work progress, can ram and expand the straight stake made from taper pile and use, and the rotating inclination angle of bowing of system stake can effectively be controlled between 0～20 °, goes slick; Selected arbitrary piling angle can be controlled flexibly, reaches steadily and effectively implements, and guarantee taper pile pile quality.
F) DHK-40 type of the present invention, DHK-45 type and DHK-50 type loose material Drop hammer pile driver is a kind of multi-functional flexible machinery.When the stake of construction system, stretch out four legs, firmly support pile frame pile body; Pressed every pile to walk by stride, all around telephone-moving is very convenient; Finish piling construction, on the glue shaft that need only connect on chassis, load onto tire, just this machine is conveniently dragged away by a trailer, do not need additional flat car to haul.
DHK-40 type of the present invention, DHK-45 type and DHK-50 type loose material Drop hammer pile driver, though on the surface, it is a kind of single pile forming method, but fully understand its pile-formation process process, it is that heavy the pulling out of repeatedly punching enabled double-deck piling pipe, repeatedly segmentation merogenesis rams and expands pile, thereby it is different from the flexible pile that other method arranges in soil layer, add in loose material that coupling has the caustic lime block of design, can produce imbibition and cementation solidifying effect giving under power effect, to ram what expand that loose material stake machine completes be a kind of compound pile activities in the present invention, this is the advantage place of stake machine of the present invention just.Meanwhile, this machine performance be also particularly suitable for rectifying a deviation righting house and save foundation pathology Engineering Accident.
The more important thing is, when this mechanical execution, because feeding intake in pile pipe, implement to ram and ram and expand dynamic stress and also mainly in pile pipe, produce effect, thus it be a kind of pollution-free, vibrate construction machinery little and that noise is low.It is less on the impact of the contiguous facility in building above and below ground.The rammer that it is implemented expands the more piece enlarged footing loose material pile composite foundation that loose material pile-formation process forms, and is better than other loose material flexible pile composite foundation.
The achieved construction of the present invention's machinery can fundamentally be applied foundation soil and give power concept (the given force concept), gives power technology (the given force technology) and give power action principle (the given force action principle) and go to deal with problems, Treatment Design and construction problem have a complete theoretical system to support, and this is only the key point that solves punishment weakness or unfavorable foundation soil condition and foundation pathology accident problem.Be controlled to quality of pile by " giving dynamics ", realize repeatedly to apply the power of giving the predeformation and the pre-effect of settling that accelerate to produce this composite foundation, residue absolute settlement and relative settlement that follow-up service load produces just can reduce greatly, even likely eliminate completely.
In addition, the given-force engineering method for multisection expanded head discrete material pile composite foundation that machinery of the present invention coordinates, can become a kind of building and rapidly and efficiently one of method of curing foundation pathology accident of rectifying a deviation.This is also the main purpose of this machine of invention.
The power of giving becomes rigidity loose material Drop hammer pile driver purposes, is applicable to weakness or the processing of bad nature of soil ground, to form the flexible pile composite foundation that gives power effect; Adopt this rammer to press the telescopic pile pipe of Drop hammer pile driver, pile pipe is sunk in the soil body, carry out the dynamic stress effect of die-cut extruding to form a stake hole by vertically-displacable rammer device, then extracting after inner tube pile pipe broken charges outside feeds intake, throw one section of after-applied tamping force of material, form one section of pile body by " giving dynamics " standard control of design in advance; According to said method, then tube drawing → feed intake again → ram again → ram and expand → finally ram earth's surface pile again, form successively the power of giving an effect flexible pile with more piece enlarged footing.Also can be according to engineering design needs, make concrete rigidity compaction pile at loose material flexible pile final section (stake top place) perfusion concrete material, finally make a loose material compaction pile that gives power and become rigidity.
Ram to expand at every turn and made a pile, telephone-moving subsequently repeats above piling process, all drive piles, finally repaved 200～500mm mattress layer, just formed the change rigidity compaction pile composite foundation with more piece enlarged footing that gives power effect to facilitate construction project to be built application; The weakness of described application or bad nature of soil condition comprise the foundation soils such as sandwich-like bury, loose powder fine sand soil, plain fill, miscellaneous fill, collapsible loess.The change rigidity compaction pile composite foundation of this formation, has greatly improved and has originally planned to build place weakness or bad soil condition, and met construction project to be built instructions for use.
By design pile hole construction, both can utilize a playscript with stage directions invention Drop hammer pile driver to complete, also can utilize two playscript with stage directions invention Drop hammer pile drivers to walk abreast to stagger " jumping hole " alternately operating mode to complete.In the time dropping into loose material rammer pressure rammer expansion flexible pile, also can mix the intumescent quicklime material of design to realize secondary compaction effect.When Drop hammer pile driver of the present invention construction, both can play straight stake, again can batter piling; Both can make flexible pile, also can make concrete rigid pile.The angle of depression that makes taper pile can effectively be controlled between 0～20 °, for the punishment reparation of structure foundation reinforcing or engineering pathology accident.
Especially, the power of giving of the present invention becomes rigidity loose material Drop hammer pile driver, also can go up a joint stake most to stake top and adopt concrete material, rams and expands into concrete rigid pile.This change rigidity compaction pile, both can be used as rescue pathology Engineering Accident used, can become again newly-built, enlarging and alteration work and require the powerful on the rigidity stub basis that bearing capacity is higher.Therefore, piling machinery of the present invention is newly-built except being applied to, enlarging and alteration work, be also applicable to the processing reparation to pathology Engineering Accident.
Accompanying drawing explanation
The power of giving that Fig. 1 processes pathology Engineering Accident becomes rigidity loose material compaction pile arrangement
Chuxian county cinema of Fig. 2 Anhui Province stabilization works plan view
Fig. 3 the present invention power of giving becomes rigidity bulk cargo material Drop hammer pile driver structural representation
Latch 9, hoist engine and frame 10 under latch 8, pile frame telescopic lever, assembly pulley 11, road wheel 12, straight stake 21, taper pile 22, the house wall base 23 on chassis 1, portal frame 2, sleeve work stake cylinder or inside and outside pile pipe 3, vertically-displacable pile monkey 4, hopper 5, portal frame Fixed latches 6, pile frame reduction pull bar and frame 7, pile frame telescopic lever.
The specific embodiment
(1) power of giving becomes rigidity loose material Drop hammer pile driver, meets the requirement of given-force engineering method for multisection expanded head discrete material pile composite foundation constructing operation performance.This pile press is made up of following six major parts:
A) chassis: chassis 1 (comprising four stabilizer foots and counterweight) is welded by steel I-beam in length and breadth.Above hoist system and control system are laid in, there are symmetrical stabilizer foot and walking stride in both sides.In addition, also deposit the counterweight iron block of anti-bias.
B) ground-engaging element: ground-engaging element (comprising telephone-moving walking stride and rubber tire wheel shaft and tire) is divided into telephone-moving stride running gear and rubber tire rolling running gear.Displacement when stride walking is piling construction operation is advanced; When rolling running gear is turnover field long distance transportation, the interim rubber tire trailer of installing is dragged away.
C) portal frame: portal frame 2 (for supporting and anchor spike guard system, being also connected with the telescopic lever of controlling piling angle); Portal frame Fixed latches 6 is fixed on chassis, the support structure skeleton of supporting & stablizing compaction pile pipe construction operation (comprising pile pipe Angulation changes) and transportation piling material (loose material and concrete).And, be also equipped with the telescopic lever of piling angle control to be connected on portal frame two legs.On portal frame, be also provided with the hopper being promoted by hoist engine.
D) compaction pile guard system: mainly formed by telescopic inside and outside pile pipe.Also have vertically-displacable hammer ram and pallet, also frame stands in this telescopic double-deck pile pipe system at ordinary times, and it is to be connected on hoist engine by the wire rope on assembly pulley.
E) hoist system: hoist system will be connected and promotes inside and outside pile pipe, lifting hammer ram and promote electromagnetic shaker and promote hopper (it has guide rail to be fixed on portal frame) with wirerope, rams to have implemented in full the construction operation that expands pile-formation process.
F) control system: comprise motor, hydraulic system (forming by organizing different jack, oil pump and oil pipe assembly etc.), liquid be electrically connected moving and lighting device etc. more.
Chassis front end is provided with portal frame, has fixed block group to be fixed thereon on hoist engine, and one group can promote and rams hammer and pile pipe (inside and outside pile pipe), and another group is fixed along the hopper of the sliding downhill race of steelframe; Before portal frame rest inner-outer sleeve cartridge type pile pipe and on the vertically-displacable of holding ram hammer, two of portal frames are connected with respectively two telescopic levers controlling piling angle; When sinking in foundation soil body, inner-outer sleeve cartridge type pile pipe can cut soil layer pore-creating, while promoting inside and outside pile pipe, can in pipe, feed intake and ram pile (progressively implementing) and form enlarged footing, to have repeated every section of system stake operation, last make the more piece loose material flexible pile with enlarged footing in solid soil.
For being applicable to requirement of engineering, the particularly needs of Ground Treatment Foundation Design pathology accident, can utilize this loose material Drop hammer pile driver to expand concrete rigid pile at the rammer of going up most a joint (stake top is divided) making perfusion concrete material of pile body.
(2) according to the stake functional requirement processed of its adaptation requirement of engineering, be designed with at present three kinds of stake machine models: DHK-40 type loose material Drop hammer pile driver, the DHK-45 type loose material Drop hammer pile driver of 40kN tamping force and the DHK-50 type loose material Drop hammer pile driver of 50kN tamping force respectively with 30kN tamping force, its expanded diameter is respectively φ 400mm, φ 450mm and φ 500mm, and piling length is respectively 15m, 18m and 20m.Certainly scope is not limited to this.The more piece enlarged footing loose material stake that they form can meet " effective length " demand of this flexible pile composite foundation completely, also can meet the carrying demand of Practical Project.Control into concrete rammer expansion rigid pile type for stake top being gone up to one most, will more can meet actual requirement of engineering, be also more convenient for saving foundation pathology Engineering Accident.
(3) according to planning to build site condition and superstructure engineering characteristic, choose a type, design stake footpath long with stake, coupling selects the power of the giving change rigidity loose material Drop hammer pile driver of respective model to carry out construction operation.
(4) stake machine is marched into the arena and is holded up frame and pile pipe, to good stake hole, first will immediately put down four leg firm supporting; Pile pipe sinks in soil layer and starts system stake operation, and in the formation of pile of its more piece enlarged footing loose material stake, stake machine stable machine performance is good; The complete every pile of injection, packs up four legs, puts down stride walking, the new stake of telephone-moving position, and all around telephone-moving is very convenient; Finish whole piling constructions, on the glue shaft that need only connect on chassis, load onto tire, just this loose material Drop hammer pile driver is transported by a trailer, do not need additional flat car to load and transport.
(5) power of giving becomes rigidity loose material Drop hammer pile driver, is applicable to weakness or the unfavorable foundation soil stabilizations such as sandwich-like bury, loose powder fine sand soil, plain fill, miscellaneous fill and collapsible loess.Apply the power of the giving effect of dynamic stress by the machine hammer ram, first adopt that low hammer is close sinks lower pile pipe pore-creating, then throw in loose material, carry out tube drawing and ram, one section one section feeds intake, and rams pile for one section one section, and one save and form enlarged footing, until stake top arrives ground.Subsequently, next position of telephone-moving, repeats above piling process, has finally formed the loose material compaction pile composite foundation that gives power effect, to facilitate construction project to be built application.
This machine also can need by engineering design, throws in concrete material at stake top final section, makes concrete compaction pile, realizes larger carrying demand, meets the pathology Engineering Accident needs of punishment foundation simultaneously.
(6), according to construction project to be built needs, can be implemented by the compaction pile of the present invention mechanism stake service behaviour technique of choosing any one kind of them:
A) more piece enlarged footing loose material stake stake process function processed:
Its system stake technology characteristics process is:
B) power of giving becomes rigidity loose material compaction pile pile stake process function processed:
Its system stake technology characteristics process is:
(7) the machine pile hole position is determined by normal equilateral triangle and the two kinds of arrangement forms of square of adopting of design.To the pile hole construction of this layout, both can utilize a stake machine to complete, also can utilize parallel " jumping hole " operation of staggering of two stake machines to complete.It is definite that its pile hole asks that spacing can be calculated as follows:
Equilateral triangle is arranged
Arranged in squares
In formula, S-gives power flexible pile composite foundation and rams piling pitch of holes (m)
D-gives power flexible pile composite foundation and rams the stake footpath (m) of piling
η
0-experiential modification coefficient, selects according to the index request of the soil condition, tamping force size and the consolidation process that are reinforced the soil body.In the time reinforcing weak and unfavorable foundation, η
0get 1.15～1.28; In the time of Ground Treatment basic pathology accident, η
0get 1.12～1.30.
γ
0and γ
1-be respectively to be reinforced and process the soil body severe (kN/m of the soil body before and after reinforcing
3), fetching earth and testing near rammer limit, piling stake hole.
(8) the more piece enlarged footing changeable ridigity pile body that Drop hammer pile driver of the present invention is made, utilize the machine hammer ram to impact, push and ram and expand the dynamic stress applying, be controlled between 0.95～0.75 scope by " giving dynamics " standard, and distinguish different great soil group soil conditions and incorporation engineering feature is carried out choose reasonable.Processing " giving dynamics " control range of pathology Engineering Accident is everlasting between 0.96～0.78.
(9) the more piece enlarged footing flexible pile of Drop hammer pile driver made of the present invention, can be made into straight stake and taper pile according to requirement of engineering.And the angle of depression of taper pile is controlled between 0～20 °, it is the conveniently punishment to pathology Engineering Accident more.
(10) loose material used, except available sand, stone graded aggregate, is more directly that the regeneration that utilizes on-the-spot building waste to reclaim is thick, fines (being the soil of broad sense) when the stake of compaction pile of the present invention mechanism.This is thick, the proportioning of fines is 2: 3, and then mixes by 2: 8 dirt of design preparation or 3: 7 dirt.The quicklime of institute's admixture is the caustic lime block (ash need not fall apart) of particle diameter < 6cm, and size coupling rationally.And by design dirt proportioning mixed material, by Indoor Impaction Test to determine its compactness, in order to control the inventory of every section of pile body.
(11) require in the control feeding intake in system stake process be: for the straight hole long tamping force that applies a time of 0.8～1.4m that often feeds intake; Often feeding intake for inclined hole, 0.6～1.0m is long applies tamping force one time, and guarantees that " giving dynamics " control puts in place.
(12) Drop hammer pile driver of the present invention coordinates given-force engineering method for multisection expanded head discrete material pile composite foundation, repeatedly applies to being reinforced the soil body power of the giving size (tamping force and rammer expansion power) of controlling by " giving dynamics " along the long scope of stake.First implemented by hammer ram according to the power action principle of giving that low hammer is close hits dynamic stress effect, pile pipe is sunk to pore-creating in soil layer, apply tamping force, flush shear force and extruding force, then loose material is thrown on one section one section ground, pile is rammed on one section of one section of ground, and one saves and rams out enlarged footing.These give power effect comprehensive effect, facilitate the composite foundation soil body after pile to produce compacted predeformation, form this composite foundation reinforcement cushion and bear upper load, to in original weakness or the loose soil layer process that issuable total settlement applies in the power of giving after service load is added up, just can consume its major part, make it can meet better the load metamorphism requirement of engineering operational phase after ground is processed.
(13), while using Drop hammer pile driver of the present invention to implement given-force engineering method for multisection expanded head discrete material pile composite foundation, can carry out according to the following steps:
A) haul stake machine is to planning to build construction plant.
According to design composite foundation loose material compaction pile stake type, match the loose material Drop hammer pile driver (ratio choosing from DHK-40 type, DHK-45 type and DHK-50 type) of respective model.Then on this both sides, machine chassis glue shaft, doughnut is installed, just can be hauled construction plant with a trailer.
B) carry out Assembling and test run.
Transport to behind job site, put down four leg anchor spike machines, and gate-type pile frame and punching hammer ram and pile pipe are erected to power-on, open hydraulic test,, taper pile angle adjustment good pile pipe angle of depression angle straight by construction, then connect motor, opens hoist system, start idle running, start examination is hung, and reaches machine and turns flexibly and operate easily row, can start construction.
C) carry out constructing operation by the piling technique of the loose material compaction pile of design:
I) pile pipe align piles position, start idle running;
Ii) start hammer ram, die-cut pile pipe, extrusion soil are sunk to pore-creating in soil layer, a step arrives pile hole site depth;
Iii) promote interior pile pipe, start to throw in loose material, once drop into and put in place and ram out a stake end enlarged footing;
Iv) gradation promotes interior pile pipe, continues one section one section ground and throws in loose material, and one section one section ground rams and is pressed into pile cutoff;
V) arrive second section enlarged footing, promote inside and outside pile pipe simultaneously, repeat iii) and iv) two steps until Section three ... even final section pile body completes and arrives ground;
Now, 1 complete loose material compaction pile completes.If final section is the concrete rammer expansion rigid pile of design, final section stake just adopts after perfusion concrete material, then one section one section is rammed into concrete rammer expansion rigid pile.
D) pack up four legs, put down stride, start to turn to telephone-moving to arrive next pile hole in place;
E) repeat above c) and d) construction operation operation, can complete whole piling processes.
[6] engineering example
Realize three building dilapedated building case histories of ground stabilization and correction, can show outstanding effect of machinery of the present invention.
(1) Chuxian county, Anhui Province cinema stabilization works
There is 1296m in this cinema
2.Owing to there being the dark pool in ground, and the pond sludge in north-south be tilt trend, the thickness under this elevation of building Dong Qiang is larger, is generally 2.0～3.3m thick, it is thick that part reaches 4.0～5.0m deeply, Modulus of pressure E
s1-2=1.29MPa, and compression molding E in the dark soil layer of 10m
s1-2be not more than 4.0MPa.Because producing compared with large differential settlement, ground cause this body of wall to occur that serious cracking forms dilapidated house and interrupts using (referring to Fig. 2).
This project is adopted to the sand, stone of 2: 3 is thick, fines is mixed with broad sense soil filler, then by 3: 7 dirt proportionings, admixture caustic lime block is piling preparation loose material.Adopt the DHK-40 type power of giving to become rigidity Drop hammer pile driver, stake footpath is 400mm, and rams at 4.5m and 10m depth two enlarged footings that expand φ 700mm diameter respectively.Design is straight, taper pile use, and take taper pile as main.The control criterion that designs total " giving dynamics " is 0.90, and the pile quality of pile body is better, and the dilapidated house large span architecture that serious cracking is caused has recovered use again.Because pile body does not use cement, contrast other concrete stakes, save 50% engineering cost.
(2) Nanjing great Chang Zhen Nan Hua community 33# and 34# two building residential building stabilization workss
Two building residential buildings of this community are for reusing working drawing, i.e. all identical four layers of residential buildings of two building structural shapes and size, and building area has 2868m
2.Because this foundation condition belongs to weak cohesive soil, whole building insufficient rigidity (length to height ratio > 4), and residential building the east has ancient stream channel, and foundation level is to inhomogeneous again, therefore cause body of wall many places cracking.Especially house the east interior wall occurs that because relative settlement is excessive larger cracking forms dilapidated house.
This project still adopts that above sandstone is thick, after fines configuration broad sense earth material, by 3: 7 dirt admixture caustic lime blocks, and at every m
3the 60kg flyash of having gone back admixture in the discrete material of pile body.Still adopt the KHK-40 type power of giving to become rigidity Drop hammer pile driver, stake footpath is 400mm, and rams at 4.5m and 10m depth two enlarged footings that expand φ 650mm diameter respectively.All be designed to ram and expand straight stake, total " giving dynamics " control criterion is 0.87.
The layout of stake as shown in Figure 3.The design focal point that lays out pile has been strengthened the embankment consolidation under residential building north wall.Because consolidation effect is better, after reinforcing, also increase by one outward at north wall and asked house, be also four layers and arrive top.Every building residential building is newly-increased area 528m after reinforcing
2, facilitating the expansion of resident family's user demand, the engineering cost of saving reaches 60% left and right.
Claims (6)
1. the power of giving becomes rigidity loose material Drop hammer pile driver, it is characterized in that comprising with lower member: chassis, ground-engaging element, control system, hoist system, portal frame and compaction pile guard system; Compaction pile guard system comprises that vertically-displacable rams tup and pallet and inside and outside sleeve pile pipe, for supporting and the portal frame of stable inside and outside sleeve pile pipe is contained in chassis, the telescopic lever of controlling piling angle also connects on portal frame, comprises promoting inside and outside pile pipe, promoting vertically-displacable and ram tup and promote the hoist system of electromagnetic shaker parts and comprise that motor, liquid are electrically connected and be movingly also contained on chassis with the control system of lighting device; Vertically-displacable is rammed tup and is positioned at the double-deck pile pipe of tube-in-tube structure top; The total length of the inner and outer pipes tube-in-tube structure of compaction pile pipe is 15～30m, and the total length of system stake is 15～30m; The diameter of described pile pipe is
it is that the vertically-displacable that 30～60kN is heavy is rammed hammer that vertically-displacable is rammed tup; On portal frame, be also provided with the hopper being promoted by hoist engine; Job step: inside and outside sleeve pile pipe is sunk to a formation stake hole in soil layer by designing pile length, throw in piecemeal loose material, vertically-displacable is rammed on the top that tup is positioned at the double-deck pile pipe of tube-in-tube structure and is rammed piecemeal, until a pile section enlarged footing for first segment stake has been made and formed in a joint stake; Continue to feed intake, repeat a joint stake system stake technique, arrive the enlarged footing position, the second level of design, repeat previous process to form second level enlarged footing, according to the third level enlarged footing of design, repeat to make pile section technique above; Until completing, a more piece enlarged footing loose material flexible pile arrives stake top ground surface.
2. the power of giving according to claim 1 becomes rigidity loose material Drop hammer pile driver, it is characterized in that two sides on chassis are provided with four supporting legs; On base plate glue wheel shaft, load onto four tires.
3. the power of giving according to claim 1 becomes the purposes of rigidity loose material Drop hammer pile driver, it is characterized in that the pile-formation process process being achieved as follows:
The power of giving become rigidity loose material Drop hammer pile driver march into the arena assembling in place → by designing pile length, inside and outside sleeve pile pipe is sunk to and in soil layer, forms a stake hole → throw in piecemeal loose material, vertically-displacable is rammed on the top that tup is positioned at the double-deck pile pipe of tube-in-tube structure and is rammed piecemeal, until the pile section enlarged footing of first segment stake → continue to feed intake has been made and has been formed in a joint stake, repeat the enlarged footing position, the second level of joint stake system stake technique → arrival design, second level enlarged footing → according to the third level enlarged footing of design, pile section technique is made in repetition above to form to repeat previous process; Until more piece enlarged footing loose material flexible pile complete arrive stake next hole of top ground surface → telephone-moving in place → repeat that above each root more piece enlarged footing loose material flexible pile stake activities processed → all more piece enlarged footing loose material flexible piles have been constructed, the machine of tearing open is dragged away.
4. the power of giving according to claim 3 becomes rigidity loose material Drop hammer pile driver purposes, it is characterized in that the more piece enlarged footing loose material flexible pile of preparation is applicable to reinforcing clip stratiform bury, loose powder fine sand soil, plain fill, miscellaneous fill and collapsible loess weakness or unfavorable foundation soil; Described weakness or unfavorable foundation soil, through repeatedly ramming, ram the dynamic stress effect of expansion, make weakness or unfavorable foundation soil reach corresponding compactness by the loose material of design coupling, to meet carrying and the Deformation Demands of construction project to be built.
5. the power of giving according to claim 3 becomes rigidity loose material Drop hammer pile driver purposes, it is characterized in that utilizing and ram tup dynamic stress, by the one section one section loose material dropping in pile pipe, ram again and again dense extrusion, form a joint pile body and also expand again and form one-level enlarged footing; Form the loose material flexible pile composite foundation of more piece enlarged footing through repeating several times same process process; For the upper level pile section of pile body, perfusion concrete rams the rigid pile being pressed into concrete enlarged footing, is conducive to the punishment of engineering pathology accident to recover to use.
6. the power of giving according to claim 3 becomes the purposes of rigidity loose material Drop hammer pile driver, it is characterized in that the enforcement of more piece enlarged footing loose material flexible pile pile-formation process, utilize a stake machine to complete, or utilize two stake machines to walk abreast to stagger construction and " jumping hole " alternately operating mode to complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110276036.9A CN102392447B (en) | 2011-09-19 | 2011-09-19 | Given force variable stiffness discrete material pile ramming and expanding machine and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110276036.9A CN102392447B (en) | 2011-09-19 | 2011-09-19 | Given force variable stiffness discrete material pile ramming and expanding machine and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102392447A CN102392447A (en) | 2012-03-28 |
| CN102392447B true CN102392447B (en) | 2014-05-14 |
Family
ID=45859819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110276036.9A Expired - Fee Related CN102392447B (en) | 2011-09-19 | 2011-09-19 | Given force variable stiffness discrete material pile ramming and expanding machine and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102392447B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947665A (en) * | 2015-07-16 | 2015-09-30 | 南通理工学院 | Construction method of granular material ram-expanded pile composite foundation |
| CN106087957A (en) * | 2016-06-03 | 2016-11-09 | 浙江圣井电力安装工程有限公司 | Power distribution room cable duct anti-settling method is built on a kind of coastal sludge matter soil |
| CN107558471B (en) * | 2017-08-21 | 2019-10-11 | 徐鹏程 | A kind of piling machine for building with high intensity |
| CN109868818A (en) * | 2019-03-30 | 2019-06-11 | 江西基业科技有限公司 | Internal and external casing component and pile driving equipment for pile driving equipment |
| CN111424660B (en) * | 2020-03-13 | 2021-08-10 | 深圳市润富建设工程有限公司 | Foundation treatment gauze discrete pile construction pile machine for soft soil and sandy soil foundation |
| CN113907030B (en) * | 2021-11-05 | 2022-11-08 | 朱志国 | Aquaculture is with throwing edible device |
| CN114277794B (en) * | 2021-12-25 | 2023-06-30 | 陕西航天通宇建筑工程有限公司 | Soft soil foundation pile hole construction equipment and construction technology thereof |
| CN114182731B (en) * | 2021-12-28 | 2023-03-07 | 金陵科技学院 | Adjustable automatic pile driver for construction site |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6311716A (en) * | 1986-07-01 | 1988-01-19 | Mitani Sekisan Kk | Construction of pile |
| CN2226082Y (en) * | 1995-05-30 | 1996-05-01 | 黄木材 | Through vibration and hammering dual-purpose pile-driver |
| CN2279382Y (en) * | 1996-04-15 | 1998-04-22 | 谌志祥 | Apparatus for internal ramming and enlarging bottom diameter |
| CN2334801Y (en) * | 1998-04-08 | 1999-08-25 | 王继忠 | Concrete pile construction equipment with rammer expanding head in bottom |
| CN2392815Y (en) * | 1999-09-29 | 2000-08-23 | 杜新智 | Hydraulic broaching machine for drilling |
| CA2468358C (en) * | 2004-06-18 | 2005-05-03 | Subterranean Ltd. | Pile installation method with downhole hammer |
| CN1793521A (en) * | 2006-01-09 | 2006-06-28 | 杜保亮 | Optimizing frictional resistance bored concrete pile construction equipment and its bored concrete pule and construction method thereof |
| CN100429355C (en) * | 2006-07-11 | 2008-10-29 | 南京工业大学 | Force-given effect flexible stake composite presser for groundsill and its uses |
| CN201024424Y (en) * | 2007-04-05 | 2008-02-20 | 许兆锋 | Penetration type multifunctional vibration pile machine |
-
2011
- 2011-09-19 CN CN201110276036.9A patent/CN102392447B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102392447A (en) | 2012-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102392447B (en) | Given force variable stiffness discrete material pile ramming and expanding machine and application thereof | |
| CN101368383B (en) | Method for treating soft soil roadbed by artificial composite crust layer | |
| CN1851154A (en) | Concrete long-core cement-soil composite pile building foundation treating method | |
| CN109914173B (en) | Foam light soil pouring table back structure in expressway reconstruction and extension project and construction method thereof | |
| CN105625294A (en) | Composite foundation and construction method thereof | |
| CN103334357A (en) | Viaduct road embankment structure with lower pile foundation bearing platform extending in roadbed, and construction method | |
| CN103074882A (en) | Construction method for reinforcing island-type perennial frozen-soil foundation by adopting gravel piles | |
| CN100429355C (en) | Force-given effect flexible stake composite presser for groundsill and its uses | |
| CN106676993A (en) | Roadbed reinforcing system of reinforced gravel framework structure and reinforcing method of roadbed reinforcing system | |
| CN109680671A (en) | A kind of liquefaction foundation treatment method based on building waste | |
| CN111315932A (en) | Modular soil body pressure-applying forming device and soft soil foundation treatment method | |
| CN111676987A (en) | Construction method for backfilling construction of construction fertilizer tank by vibrating, slurry-flushing and ramming method | |
| CN103215950B (en) | Pile foundation extension construction method in backfilling area | |
| CN102409660A (en) | Given-force engineering method for multisection expanded head discrete material pile composite foundation | |
| CN100424272C (en) | Granule material hydrostatic pressure stake method for pressing force to groundsill | |
| CN206902734U (en) | A kind of earth construction of soft foundation zone | |
| CN102966109A (en) | Method for constructing zonal deep foundation pit bottom sealing of soft soil foundation | |
| CN101451356B (en) | Five in one pre-expansion ecological pile body processing foundation method | |
| CN103437353A (en) | Cast-in-situ light foam concrete reinforcing method based on anchor bolt support | |
| CN106245546A (en) | A kind of corrugated steel Pipe rack | |
| CN103966995A (en) | Construction method for composite foundation on soft soil stratum | |
| HU225407B1 (en) | Procedure for augmentation physical parameters and bearing capacity of ground and for diminution time of consolidation and expected consolidation settlement of thereof | |
| CN203144858U (en) | Subgrade settlement control structure of highway in operation | |
| CN208455661U (en) | The high barrier wall structure of the embedding rock T shape combined type column plate of overlength | |
| KR100472697B1 (en) | The tamping method which uses the vibrating hammer and that system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20140919 |
|
| EXPY | Termination of patent right or utility model |