CN104088279A - Construction process of site pre-assembling and integrated driving of large cylindrical secondary cell of cellular steel sheet pile - Google Patents
Construction process of site pre-assembling and integrated driving of large cylindrical secondary cell of cellular steel sheet pile Download PDFInfo
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Abstract
The invention discloses a construction process of a site pre-assembling and integrated driving of a large cylindrical secondary cell of a cellular steel sheet pile. The process comprises the following steps: arranging a corresponding secondary cell assembling bracket at a construction site; directly pre-assembling the cellular steel sheet pile to form the large cylindrical secondary cell on the assembling bracket; directly distributing a plurality of vibration hammers through a floating crane for vibration sinking to hoist the assembled secondary cell from the assembling bracket and then insert into a locking port of a connecting pile of a main cell and the secondary cell at a cylinder position; starting the vibration hammers at the same time to perform vibration sinking for the secondary cell steel sheet pile; operating single hammer by groups to perform vibration sinking in place in case of insufficient overall vibration sinking. With the adoption of the process, the problems of the prior art can be solved; the construction of a dyke using relatively short cellular steel sheet piles in all land formation projects applies; the process is particularly applied to areas where large floating cranes cannot enter, such as the intertidal zone with shallow water, and aerial height limitation areas close to airports.
Description
Technical field
The present invention relates to a kind of marine man-made island construction technology, while relating in particular to the secondary lattice construction of a kind of marine lattice shaped steel plate pile large cylinder, adopt multiple vibrating hammers that preframed scene secondary lattice steel sheet pile while entirety is shaken heavy.
Background technology
Man-made island is generally artificial land of building in Nearshore Shallow Sea waters, as the place of carrying out operation on the sea or other purposes, mostly has trestle or seabed tunnel to be connected with bank.The coastal state of modern industry prosperity, densely populated, urban congestion is with in strand one, make to further develop with construction of new enterprise and communal facilities and be very limited, the problems such as inhabitation, traffic, noise, water and the air pollution in original city itself are also difficult to solve.Therefore, build man-made island, change or improved an above-mentioned difficult problem.Man-made island is one of mode of utilizing ocean space, is also a kind of emerging ocean engineering.
China's port Zhuhai and Macao bridge Hong Kong man-made island (HKBCF) is an important component part of Zhuhai and Macao bridge Hong Kong, port connecting line, through connection Tunmen, red La Jiao airport and Dayu Mountain, floor space approximately 1,500,000 square meters.This man-made island reclamation is as port Zhuhai and Macao bridge conveyance system, and progress, quality and the security relationship of engineering, to the construction and development of whole bridge, implemented this project smoothly, and the construction of whole port Zhuhai and Macao bridge is had to solid place mat effect.This man-made island by add at lattice shaped steel plate pile large cylinder mole form cofferdam in backfill filler form.
Referring to Fig. 1 and Fig. 2, this man-made island 100 forms for backfill filler in the cofferdam that adds mole 102 at lattice shaped steel plate pile large cylinder 101 and form, floor space approximately 1,500,000 square meters.The about 5.1km of its lattice shaped steel plate pile island wall construction axial length, 134 of total lattice shaped steel plate pile large cylinders (101a), diameter is respectively 26.9m and 31.194m.Totally 133 groups of the secondary lattice 101b that nominative 101a (being lattice shaped steel plate pile large cylinder) is connected with nominative, be respectively: 1. the secondary lattice diameter between diameter 26.9m nominative is 10.976m, totally 55 groups (110), the secondary lattice of monolithic are made up of 33 block plate stakes; 2. the secondary lattice diameter between diameter 31.194m nominative is 15.96m, totally 77 groups (154), and the secondary lattice of monolithic are made up of 46 block plate stakes; 3. the secondary lattice diameter between diameter 26.9m nominative and diameter 31.194m nominative is 16.296m, totally 1 group (2), and the secondary lattice of monolithic are made up of 47 block plate stakes.
Meanwhile, this engineering adopts the straight abdomen formula of YSP-FXL type steel sheet pile, and material is S355, length 23.6～37.1m, and its nominal width is 500mm, and web thickness is 12.7mm, and corner is 10 °, and theoretical weight is 77.2kg/m.Carrying out before lattice shaped steel plate pile large cylinder construction, should first complete the construction of hardcore bed, geotextiles and broken stone pile, after one section of scope of operation of the Macadam Pile Construction, can carry out the construction of lattice shaped steel plate pile large cylinder, after the installation of lattice shaped steel plate pile large cylinder, carry out filler backfilling working in cylinder in 24 hours.After the nominative installation of two adjacent lattice shaped steel plate pile large cylinders backfill complete, can carry out secondary lattice construction.
Above-mentioned engineering mainly contains five large difficult points in work progress: 1) construction area limit for height.2) depth of water is shallow.3) features as poor geologic condition, makes stake long.4) complete off-shore operation, marine environmental requirement is high.5) duration is tight.
Summary of the invention
For by adding in the cofferdam that mole forms the man-made island that forms of backfill filler at lattice shaped steel plate pile large cylinder in work progress, (be construction area limit for height in the construction condition that faces " all restricted up and down ", the depth of water is shallow, features as poor geologic condition, marine environmental requirement is high) time, be difficult to the problem on time completing within the tighter duration, the present invention is directed to the secondary lattice of the long shorter lattice shaped steel plate pile large cylinder of stake, provide a kind of " on-the-spot pre-splicing, entirety is hung up and beaten " construction technology, this construction technology can effectively solve the problem running in existing lattice shaped steel plate pile large cylinder work progress.
In order to achieve the above object, the present invention adopts following technical scheme:
The construction technology that the secondary lattice of a kind of lattice shaped steel plate pile large cylinder scene is pre-splicing, entirety is hung up and beaten, this technique arranges corresponding secondary lattice assembling support at the construction field (site), on this assembling support, direct pre-splicing lattice shaped steel plate pile forms the secondary lattice of large cylinder, heavy directly join multiple vibrating hammers with crane ship assembled good secondary lattice are lifted by crane from assembling support by shaking, and insert in cylinder position major-minor lattice connection stake (Y stake) fore shaft, then Vibration on Start-up is hammered into shape simultaneously, heavy secondary lattice steel sheet pile shakes, entirety is shaken heavy time not in place, adopts single hammer grouping to shake and sinks to position.
This technique in the specific implementation, while being arranged on secondary lattice assembling support, first according to geological conditions, load bearing requirements, various operating mode and water level, meteorological condition etc., arranges the stake of corresponding secondary lattice assembling support foundation support; Then in foundation support stake, set firmly corresponding top assembling support.
Further, described foundation support stake adopts 6 steel pipe piles, is divided into two groups of installation sites according to secondary lattice and is symmetricly set between the nominative steel sheet pile setting, and 3 steel pipe piles are isosceles triangle and distribute in every group, and are positioned at the inner side that secondary case to be installed is put;
Described top assembling support is made up of three layers of platform, lower floor's platform has been held concurrently and has been tangled the effect of secondary lattice steel sheet pile temporarily, above, on the platform of middle level, arrange and ensure the stable device of assembled steel sheet pile, on the one hand steel sheet pile rely on, on middle platform, on platform, adopt on the other hand cucurbit to hold steel sheet pile, the upper mounting plate while is as the manual operation platform of the assembled mortise lock mouth of sheet pile.
Further, when scene is pre-splicing, adopt 3 modes of hanging that steel sheet pile is sling, when assembled first steel sheet pile, steel sheet pile is pressed close to assembling support platform front end arc face, rely on steel sheet pile deadweight to sink, until steel sheet pile top is while exceeding the about 1m of upper mounting plate, on steel sheet pile, weld U-shaped channel-section steel, steel sheet pile is hung on the T-shaped hook on lower platform;
When assembled other steel sheet pile, assembled to both sides from centre, until 46 steel sheet piles have spliced; 6 steel sheet piles of every splicing use 3t Chain block steel sheet pile at middle platform and upper mounting plate, make it stable.
Further, while lifting by crane pre-splicing secondary lattice, lift multiple vibrating hammers by corresponding arc hanging beam and oil pipe hanging beam, the plurality of vibrating hammer is according to the curved distribution of arc hanging beam, the pre-splicing secondary lattice of arc are directly lifted by vibrating hammer, and arc hanging beam radian is consistent with secondary lattice steel sheet pile assembling sheet axle center radian.
Further, shake heavy with crane ship by secondary lattice steel sheet pile after assembling support takes off, move ship to needing secondary case to put, workman stands on the floating mat being placed in nominative, by the Chain blocks of 25 tons, the skirt piles of the secondary lattice cylinder position major-minor lattice that further is connected to stake (Y stake) snap close; On the hanger of one side auxiliary connection lattice skirt piles of Chain block, be connected in addition hanging on a hole on nominative steel sheet pile on one side; The secondary lattice steel sheet pile of slow decreasing connects stake (Y stake) snap close until enter cylinder position major-minor lattice; First to one side snap close again to other one side; After secondary lattice steel sheet pile is installed and deadweight sinks to putting in place, adopts 6 vibrating hammers while entirety heavy steel sheet pile that shakes.
Further, secondary lattice are whole to be put and adopts steel pipe pile to carry out punching at the secondary case of arc in advance before beating, and abolishes the locational geotextiles of cylinder position steel sheet pile.
Further, while adopting steel pipe pile punching, adopt GPS location, guarantee that punching position is accurate.
Construction technology provided by the invention has the following advantages:
1) pre-splicing, the entirety in the secondary lattice of the secondary lattice of lattice shaped steel plate pile large cylinder arc scene is hung up and beaten process, be applicable to all land-based areas and form the long shorter lattice shaped steel plate pile embankment construction of stake in engineering, be particularly useful for the inaccessiable region of large-scale crane ship, near aviation height limiting zone intertidal zone, airport as more shallow in the depth of water.In this engineering, the long secondary lattice that are less than 26.1m of stake are all suitable for.
2) can carry out fast embankment sealing, favourable to the whole one-tenth island duration, do not affect other operation in island;
3) this technique overall craft step is less, and without assembled base, inland and large transport ship, cost is lower.
4) secondary lattice are assembled on the outer assembling support in cylinder position at the scene, saved the assembled time of stake position, and the time of constructing in stake position is greatly saved.
5) secondary lattice are whole plays lifting and directly adopts vibrating hammer to bite steel sheet pile, has saved lifting suspension hook and be converted to the process of vibrating hammer, and piling execute-in-place becomes very simple, and sheet pile directly inserts nominative and connects a stake fore shaft.And many hammers heavy speed of shaking is more faster than single hammer grouping heavy speed of shaking.
Brief description of the drawings
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is man-made island steel sheet pile grid island wall construction plan view;
Fig. 2 is man-made island Steel Sheet Pile grille plane arrangement diagram;
Fig. 3 is support steel pile tube arrangement diagram in pre-splicing support in the present invention;
Fig. 4 is that in the present invention, pre-splicing, the entirety in the secondary lattice sheet pile of large cylinder scene is hung up and beaten construction technology flow chart.
Detailed description of the invention
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
This example is using the man-made island steel sheet pile grid island wall described in background technology part as corresponding construction works, illustrates that the secondary lattice of lattice shaped steel plate pile large cylinder are pre-splicingly wholely beaten, the whole implementation process of pile extension free combat combination construction process with this.
In this example, the enforcement of this project has following condition:
1) on-the-spot limit for height condition
This engineering next-door neighbour Chi Lajiao International airport, Hong Kong, whole construction area is all positioned at aviation height-limit area, Chi Lajiao airport, Hong Kong, lattice shaped steel plate pile large cylinder job site limit for height is between+33mPD～+ 60mPD, construction equipment is selected to be extremely restricted, existing equipment cannot normally come into operation or service efficiency extremely low, must newly-builtly could be applicable to this engineering construction needs with transformation equipment component, and subregion steel sheet pile also need relax in the phase and implement in limited aviation limit for height.
This Engineering average sea level is 1.2mPD, and therefore, this process is applicable in the marine site of minimum headroom 31.8m AMSL, the heavy secondary lattice of large cylinder of establishing maximum length 26.1m.
2) depth condition
Engineering construction waters sea bed elevation absolute altitude from-2.8mPD～-11mPD not etc., after throwing rubble, the lifting to some extent of the actual elevation of sea bed face.
This process is applicable in the marine site of minimum depth 3m bmsl.
3) stormy waves condition
When this engineering tooling bracket system computing, maximum water depth value is 11m, extreme wave height 2.2m, wave period 5.5s, maximum wind velocity 44m/s.But in order to ensure safety, but in order to ensure safety, when the secondary lattice of this large cylinder scene is transferred, inserted nominative and connects stake fore shaft, need be chosen in when calm.
4) geological conditions
About 15m～the 25m of this engineering site bottom silt bed thickness, designing pile length 23.6m～37.1m.
5) construction area scope restrictive condition
The complete off-shore operation of this engineering, during site operation, long-term setting of island body periphery blocked dirty curtain, and large cylinder construction is positioned at long and narrow region, and beam overall is restricted to 200m, is started at a side 150m, opposite side 50m, the about 120m of actual maximum construction clear distance by extra large center line of wall.
6) duration constraints
The long average 37.1m of the secondary lattice steel sheet pile stake of this engineering, under the condition of aviation limit for height at the scene, effective operation time is too short, if adopt on-the-spot loose spelling, work efficiency is too low, and 154 steel sheet piles of each large cylinder are assembled consuming time oversize, is difficult to meet except mouth 129 lattice shaped steel plate pile large cylinders requirement completing in latter 420 days that goes into operation outdoors, therefore must select a kind of pre-splicing technique, reduce the method for field operation time.Therefore selected the technique that the secondary lattice sheet pile of a kind of large cylinder scene is pre-splicing, entirety is hung up and beaten.
In sum, be subject to the restriction of Hong Kong International Airport's aviation limit for height, the impact that local engineering water depth is more shallow and periphery blocks dirty curtain, secondary sound of laughing the shaped steel plate pile construction technology of this engineering and construction equipment are all very limited, and can only select specific technology and equipment to implement steel sheet pile construction.Existing large-tonnage crane ship height can not adapt to the requirement of on-the-spot limit for height, is also difficult to adapt to depth condition, so on-site hoisting part must be restricted in height, weight.
According to on-the-spot " limit for height, water is shallow, mud is dark, narrow range " affined feature all up and down, adopt the process of a kind of " scene is pre-splicing, entirety hang up and beat " for the secondary lattice of diameter 31.194m lattice shaped steel plate pile large cylinder.This technique arranges corresponding secondary lattice assembling support at the construction field (site), on this assembling support, direct pre-splicing lattice shaped steel plate pile forms the secondary lattice of large cylinder, heavy directly join multiple vibrating hammers with crane ship assembled good secondary lattice are lifted by crane from assembling support by shaking, and insert in cylinder position major-minor lattice connection stake (Y stake) fore shaft, then Vibration on Start-up is hammered into shape simultaneously, the heavy secondary lattice steel sheet pile that shakes, entirety is shaken heavy time not in place, adopts single hammer grouping to shake and sinks to position.
In order to clearly demonstrate the work progress of this example, below will the preparation of some equipments that relate in work progress be specifically described.
1, the preparation of pre-splicing support
Secondary lattice on-site consolidation support is to be arranged on 6 supports on bearing pile, the operation during for the lower shackle in secondary lattice scene, replacing vibrating hammer.Possesses following functions: 1) steel sheet pile hangs; 2) assembled of secondary lattice are temporary fixed; 3) the assembled operation of secondary lattice.
The pre-splicing support of secondary lattice mainly consists of the following components:
1) foundation support stake
According to geological conditions, load bearing requirements, various operating mode and water level, meteorological condition etc., secondary lattice assembling support basis adopts 6 steel pipe piles to support.These 6 steel pipe piles 11, being divided into two groups of installation sites according to secondary lattice steel sheet pile 12 is symmetricly set between the nominative steel sheet pile 13 setting, in every group, 3 steel pipe piles are isosceles triangle distribution, and are positioned at the inner side (as shown in Figure 3) that secondary case to be installed is put;
2) top assembling support structure
Top assembling support is made up of Accessory Members such as three layers of platform and flute profile hooks, lower floor's platform has been held concurrently and has been tangled the effect of secondary lattice steel sheet pile temporarily, above, on the platform of middle level, arrange and ensure the stable device of assembled steel sheet pile, on the one hand steel sheet pile rely on, on middle platform, on platform, adopt on the other hand cucurbit to hold steel sheet pile, the upper mounting plate while is as the manual operation platform of the assembled mortise lock mouth of sheet pile; Its two ends of the pre-splicing support forming thus form the curved end corresponding with secondary lattice.
2, secondary lattice assembled " special floating crane " are prepared
Be the super long pile of 26.1m because steel sheet pile stake is long, need to adopt 3 modes of hanging.Need under normal circumstances to configure two crane ships, a main hoisting, another cooperation.When the secondary lattice of this engineering are assembled, adopt for shaking the heavy 250t crane ship that has 2 loop wheel machines, efficiently solve the problem of 3 liftings of single pile, reduced the crane ship that coordinates use.The assembled special floating crane of secondary lattice has assembled a 250t crane and a 25t crin hangs.
3, secondary lattice are whole plays " special floating crane " preparation
On-the-spot wholely beat lifting vibrating hammer and secondary lattice sheet pile is implemented by one " special floating crane ".
Hang the factor such as height and secondary lattice steel sheet pile assembling sheet hoisting demand and the requirement of hull stability according to aviation limit for height, sea bed mud face elevation, vibrating hammer, adopt 6000t level deck barge to make special floating crane lash ship.
The whole special floating crane of beating of secondary lattice can reduce Current Collector Sleave height to greatest extent, makes steel sheet pile length long as far as possible, this technique steel sheet pile maximum length 26.1m.
4, the preparation of vibrating hammer arc hanging beam
6 vibrating hammers adopt arc hanging beam entirety to lift simultaneously, and according to the curved distribution of arc hanging beam entirety, secondary lattice steel sheet pile assembling sheet is directly lifted by vibrating hammer, and arc hanging beam radian is consistent with secondary lattice steel sheet pile assembling sheet axle center radian.
Effectively hang height for increasing as far as possible crane ship, between steel sheet pile arc hanging beam and crane ship suspension hook, directly adopt shackle plate to be connected.
5, the preparation of vibrating hammer oil pipe hanging beam
Owing to adopting multiple hydraulic hammers, the hydraulic oil pipe of each hammer is very long, can affect lifting operation, and therefore specialized designs has been made oil pipe hanging beam, shelving in the air and overhauling for oil pipe.
After completing above-mentioned correlation technique preparation, determine relevant construction process, whole construction process is referring to Fig. 4.
Step 1, the preparation of the construction of being correlated with, as the preparation of the each side such as relevant device, constructor.
Step 2, for job site, to the measurement of Y stake (being that major-minor lattice connect stake) completion position.
Step 3, according to the Y stake of measuring (being that major-minor lattice connect stake) completion position, sinks and establishes corresponding foundation support stake, and concrete scheme is described above, is not repeated herein.
Step 4 is installed the pre-splicing support of secondary lattice in heavy foundation support stake of establishing, and between the pre-splicing support of secondary lattice and bearing pile, adopts flange to be connected.Concrete structure feature for the pre-splicing support of secondary lattice is described above, is not repeated herein.
Step 5 is carried out on-the-spot pre-splicing lattice shaped steel plate pile and is formed the secondary lattice of large cylinder on the pre-splicing support of secondary lattice.
Processed by land-based area for the required steel sheet pile of the secondary lattice of assembled large cylinder, and be transported to job site.
Wherein, secondary lattice steel sheet pile processing, transport main technical points are as follows:
1) after steel sheet pile processing, adopt common transport barge to be transported to scene.
2) steel sheet pile goes out before fortune, should be according to the position of the lattice shaped steel plate pile lattice body of site operation, determine the position of the each steel sheet pile of the secondary pre-splicing load of lattice of arc, and make special assembled precedence diagram.Assembled place constructor is according to assembled precedence diagram, machined steel sheet pile successively.
3) the whole steel sheet pile maximum length of beating of the secondary lattice of this technique is 26.1m, because steel sheet pile pile body is longer, for preventing that steel sheet pile from producing permanent deformation in transport and hoisting process, bracket must be set on transport barge and carry out steel sheet pile and store up.
In the time carrying out the pre-splicing secondary lattice in scene, corresponding technical requirements is as follows:
1) on assembling support support steel pile tube employing barge with deck, configure 1 crawler crane and 1 hydraulic vibration driver enforcement pile sinking.Pattern is hung up and beaten in employing.For ease of steel pipe pile location, on the nominative cylinder of having constructed, shaped steel guide beam is set.
2) for meeting the limit for height requirement of different engineerings region, the secondary lattice assembling support lifting of this engineering is completed by 1 horizontal hanging arm crane ship or crane ship, and assembling support highly can meet the minimum aviation limit for height requirement of zones of different after installing.
3) be the super long pile of 26.1m because steel sheet pile stake is long, adopt 3 modes of hanging.Adopt for shaking the heavy 250t crane ship that has 2 loop wheel machines, the assembled special floating crane of secondary lattice has assembled a 250t crane and a 25t crin hangs.
As follows in the process of carrying out on-the-spot pre-splicing secondary lattice:
By shaking accordingly, heavy crane ship is suspended on steel sheet pile on the T-shaped hook on assembling support lower platform by U-shaped channel-section steel by 3 modes of hanging.Concrete when assembled, first steel sheet pile is pressed close to assembling support platform front end arc face, relies on steel sheet pile deadweight to sink, until U-shaped channel-section steel while exceeding the about 1m of upper mounting plate, is welded in steel sheet pile top on steel sheet pile, steel sheet pile is hung on lower platform on T-shaped hook.
When assembled, assembled to both sides from centre, until 46 steel sheet piles have spliced.6 steel sheet piles of every splicing use 3t Chain block steel sheet pile at middle platform and upper mounting plate, make it stable.
Step 6, in the assembled receipts that complete, carries out secondary lattice steel sheet pile lifting and whole beating.
1) secondary lattice steel sheet pile is installed and is adopted " three boats refute 601 " crane ship to join 6 vibrating hammers and directly lift.For preventing the landing of handling process Steel Sheet Pile, on steel sheet pile, establish additional shackle plate, be hung in by strap on the suspension ring of vibrating hammer fixture side.
2) crane ship takes off secondary lattice steel sheet pile from assembling support, moves ship to needing secondary case to put.Workman stands on the floating mat being placed in nominative, by the Chain blocks of 25 tons by the skirt piles of the secondary lattice Y stake snap close that furthers.On the hanger of one side auxiliary connection lattice skirt piles of Chain block, be connected in addition hanging on a hole on nominative steel sheet pile on one side.The secondary lattice steel sheet pile of slow decreasing is until enter Y stake snap close.First to one side snap close again to other one side.
3) secondary lattice steel sheet pile is installed and after deadweight sinks to putting in place, adopts 6 vibrating hammers while entirety heavy steel sheet pile that shakes.
4) because overlength steel sheet pile rigidity is very weak, before construction, adopt in advance steel pipe pile to carry out punching in secondary lattice steel sheet pile position, abolish the locational geotextiles of cylinder position steel sheet pile, so that the secondary lattice entirety of arc easily penetrates the geotextiles on sea bed face while transferring.While adopting steel pipe pile punching, adopt GPS location, guarantee that punching position is accurate.
5) secondary lattice are whole beat after, when local stake arrive design elevation, adopt single vibrating hammer to mend to shake and put in place, the benefit direction of shaking is first both sides, rear centre.
Complete thus the site operation of the secondary lattice of a large cylinder.
Known according to above-mentioned example, secondary lattice provided by the invention " on-the-spot pre-splicing, entirety hang up and beat " technique only has two large processing steps: scene is pre-splicing, entirety is hung up and beaten, and each step all has independently process characteristic.
On-the-spot pre-splicing feature:
1) the corresponding assembling support designing for the temporary fixed secondary lattice in scene, its height design has solved under on-the-spot limit for height condition and to have adapted to the problem that stake is long, be convenient to artificial assembled operation; Structure design has solved during typhoon period support and steel sheet pile stable problem, secondary lattice stake integral hanging problem.
2) specialized designs the extension stake mode on assembling support, solved the temporary fixed problem of sheet pile when assembled;
3) assembled employing, for shaking the heavy 250t crane ship that has 2 loop wheel machines, efficiently solves the problem of 3 liftings of single pile, has reduced the crane ship that coordinates use.
Entirety is hung up and beaten feature:
1) bite steel sheet pile because lifting directly adopts vibrating hammer, saved lifting suspension hook and be converted to the process of vibrating hammer, when on-site hoisting, stake position no longer needs setting operation platform, and it is very simple that execute-in-place becomes, and sheet pile directly inserts nominative and connects a stake fore shaft.
2) specialized designs has been manufactured Special arc hanging beam and application tube hanging beam, the stability problem while efficiently solving multiple vibrating hammers that arc arranges and the pre-assort lifting of the secondary lattice of arc.
3) before construction, adopt steel pipe pile to carry out punching in the secondary lattice steel sheet pile of cylinder position in advance, solved the problem that is difficult to penetrate the geotextiles on sea bed face when secondary lattice entirety is transferred.
More than show and described general principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. the construction technology that the secondary lattice of lattice shaped steel plate pile large cylinder scene is pre-splicing, entirety is hung up and beaten, it is characterized in that, described technique arranges corresponding secondary lattice assembling support at the construction field (site), on this assembling support, direct pre-splicing lattice shaped steel plate pile forms the secondary lattice of large cylinder, heavy directly join multiple vibrating hammers with crane ship assembled good secondary lattice are lifted by crane from assembling support by shaking, and insert in cylinder position major-minor lattice connection stake fore shaft, then Vibration on Start-up is hammered into shape simultaneously, heavy secondary lattice steel sheet pile shakes, entirety is shaken heavy time not in place, adopts single hammer grouping to shake and sinks to position.
2. the construction technology that the secondary lattice of a kind of lattice shaped steel plate pile large cylinder according to claim 1 scene is pre-splicing, entirety is hung up and beaten, it is characterized in that, while being arranged on secondary lattice assembling support, first according to geological conditions, load bearing requirements, various operating mode and water level, meteorological condition etc., the stake of corresponding secondary lattice assembling support foundation support is set; Then in foundation support stake, set firmly corresponding top assembling support.
3. the construction technology that the secondary lattice of a kind of lattice shaped steel plate pile large cylinder according to claim 2 scene is pre-splicing, entirety is hung up and beaten, it is characterized in that, described foundation support stake adopts 6 steel pipe piles, being divided into two groups of installation sites according to secondary lattice is symmetricly set between the nominative steel sheet pile setting, in every group, 3 steel pipe piles are isosceles triangle distribution, and are positioned at the inner side that secondary case to be installed is put;
4. the construction technology that the secondary lattice of a kind of lattice shaped steel plate pile large cylinder according to claim 1 scene is pre-splicing, entirety is hung up and beaten, it is characterized in that, described top assembling support is made up of three layers of platform, lower floor's platform has been held concurrently and has been tangled the effect of secondary lattice steel sheet pile temporarily, above, on the platform of middle level, arrange and ensure the stable device of assembled steel sheet pile, on the one hand steel sheet pile rely on, on middle platform, on platform, adopt on the other hand cucurbit to hold steel sheet pile, the upper mounting plate while is as the manual operation platform of the assembled mortise lock mouth of sheet pile.
5. the construction technology that the secondary lattice of a kind of lattice shaped steel plate pile large cylinder according to claim 4 scene is pre-splicing, entirety is hung up and beaten, it is characterized in that, when scene is pre-splicing, adopt 3 modes of hanging that steel sheet pile is sling, when assembled first steel sheet pile, steel sheet pile is pressed close to assembling support platform front end arc face, rely on steel sheet pile deadweight to sink, until U-shaped channel-section steel while exceeding the about 1m of upper mounting plate, is welded in steel sheet pile top on steel sheet pile, steel sheet pile is hung on the T-shaped hook on lower platform;
When assembled other steel sheet pile, assembled to both sides from centre, until 46 steel sheet piles have spliced; 6 steel sheet piles of every splicing use 3t Chain block steel sheet pile at middle platform and upper mounting plate, make it stable.
6. the construction technology that the secondary lattice of a kind of lattice shaped steel plate pile large cylinder according to claim 1 scene is pre-splicing, entirety is hung up and beaten, it is characterized in that, while lifting by crane pre-splicing secondary lattice, lift multiple vibrating hammers by corresponding arc hanging beam and oil pipe hanging beam, the plurality of vibrating hammer is according to the curved distribution of arc hanging beam, the pre-splicing secondary lattice of arc are directly lifted by vibrating hammer, and arc hanging beam radian is consistent with secondary lattice steel sheet pile assembling sheet axle center radian.
7. according to the construction technology that the secondary lattice of a kind of lattice shaped steel plate pile large cylinder scene is pre-splicing, entirety is hung up and beaten described in claim 1 or 4, it is characterized in that, shake heavy with crane ship by secondary lattice steel sheet pile after assembling support takes off, move ship to needing secondary case to put, workman stands on the floating mat being placed in nominative, by the Chain blocks of 25 tons, the skirt piles of the secondary lattice cylinder position major-minor lattice that further is connected to a stake snap close; On the hanger of one side auxiliary connection lattice skirt piles of Chain block, be connected in addition hanging on a hole on nominative steel sheet pile on one side; The secondary lattice steel sheet pile of slow decreasing connects stake snap close until enter cylinder position major-minor lattice; First to one side snap close again to other one side; After secondary lattice steel sheet pile is installed and deadweight sinks to putting in place, adopts 6 vibrating hammers while entirety heavy steel sheet pile that shakes.
8. the construction technology that the secondary lattice of a kind of lattice shaped steel plate pile large cylinder according to claim 1 scene is pre-splicing, entirety is hung up and beaten, it is characterized in that, secondary lattice are whole puts and adopt steel pipe pile to carry out punching at the secondary case of arc in advance before beating, and abolish the locational geotextiles of cylinder position steel sheet pile.
9. the construction technology that the secondary lattice of a kind of lattice shaped steel plate pile large cylinder according to claim 8 scene is pre-splicing, entirety is hung up and beaten, is characterized in that, while adopting steel pipe pile punching, adopts GPS location, guarantees that punching position is accurate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410290866.0A CN104088279B (en) | 2014-06-25 | 2014-06-25 | Construction process of site pre-assembling and integrated driving of large cylindrical secondary cell of cellular steel sheet pile |
| HK14110556.9A HK1198192A1 (en) | 2014-06-25 | 2014-10-22 | A construction technology of in-situ pre-fabrication and simultaneously/integrally piling for sheet piles of cellular arc cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410290866.0A CN104088279B (en) | 2014-06-25 | 2014-06-25 | Construction process of site pre-assembling and integrated driving of large cylindrical secondary cell of cellular steel sheet pile |
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| CN104088279A true CN104088279A (en) | 2014-10-08 |
| CN104088279B CN104088279B (en) | 2017-05-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627326A (en) * | 2014-12-22 | 2015-05-20 | 中交第三航务工程局有限公司 | Special lifting and vibration-driving ship for integrated driving of cell type steel sheet pile large cylinders and vice cells |
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- 2014-06-25 CN CN201410290866.0A patent/CN104088279B/en active Active
- 2014-10-22 HK HK14110556.9A patent/HK1198192A1/en unknown
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| JP2001323463A (en) * | 2000-05-12 | 2001-11-22 | Safety Service System:Kk | Inner excavation, low-displacement, low-noise, low- vibration pile driver for friction pile and method of driving pile |
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| CN104627326A (en) * | 2014-12-22 | 2015-05-20 | 中交第三航务工程局有限公司 | Special lifting and vibration-driving ship for integrated driving of cell type steel sheet pile large cylinders and vice cells |
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| Publication number | Publication date |
|---|---|
| CN104088279B (en) | 2017-05-03 |
| HK1198192A1 (en) | 2015-03-13 |
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