CN104047277A - Combined disperse hitting method for lattice type steel sheet pile large cylinder main lattice sheet piles - Google Patents
Combined disperse hitting method for lattice type steel sheet pile large cylinder main lattice sheet piles Download PDFInfo
- Publication number
- CN104047277A CN104047277A CN201410293194.9A CN201410293194A CN104047277A CN 104047277 A CN104047277 A CN 104047277A CN 201410293194 A CN201410293194 A CN 201410293194A CN 104047277 A CN104047277 A CN 104047277A
- Authority
- CN
- China
- Prior art keywords
- sheet pile
- pile
- steel sheet
- large cylinder
- lattice
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 183
- 239000010959 steel Substances 0.000 title claims abstract description 183
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004080 punching Methods 0.000 claims description 7
- 238000005304 joining Methods 0.000 claims description 5
- 201000003373 familial cold autoinflammatory syndrome 3 Diseases 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 17
- 238000000465 moulding Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 9
- 239000004746 geotextile Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a combined disperse hitting method for a lattice type steel sheet pile large cylinder main lattice sheet piles. According to the method, vibration sinking is performed on lattice type steel sheet pile large cylinder main lattices in a grouped mode through a single vibration hammer. The aquatic combined disperse hitting technology of a lattice type steel sheet pile large cylinder is suitable for lattice type steel sheet pile diking construction in all land formation projects and especially suitable for applicable to the areas, where a large crane ship cannot enter, such as intertidal zones of which the water is shallow and height limit aviation areas near airports. Land pre-splicing is not affected by on-site conditions, and therefore the method is especially suitable for offshore areas where on-site effective operation time per year is quite short. Meanwhile, because the technology does not need a large-tonnage crane ship of which the tonnage is 2000 t or more, and construction cost is lower.
Description
Technical field
The present invention relates to a kind of marine man-made island construction technology, adopt the preframed 1/4 cylinder scene of land-based area to be outside the venue spliced into full circle while relating in particular to a kind of marine lattice shaped steel plate pile large cylinder construction, then grouping is shaken and is sunk to the method for position.
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.
For example Chinese 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, it is depicted as certain man-made island steel sheet pile grid island wall construction plan view.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, the about 5.1km of its lattice shaped steel plate pile island wall construction axial length, (101) 134 of total lattice shaped steel plate pile large cylinders, diameter is respectively 26.9m and 31.194m.Totally 133 groups of the secondary lattice that nominative 101 (being lattice shaped steel plate pile large cylinder) is connected with nominative, are respectively: 1. the secondary lattice diameter between diameter 26.9m nominative is 10.976m, and 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.
Except the every restrictive condition of above-mentioned construction, for heavy the establishing of the lattice shaped steel plate pile large cylinder nominative of diameter 31.194m, long 37.1m, in routine techniques, generally need the above large-tonnage large-scale crane ship of 2000t to join more than 20 large-scale vibrating hammer simultaneously and carry out the technique that it is heavy that entirety is shaken, this technique is except existing main equipment to the various requirement of job site, its required expense costliness very, this will increase the cost of engineering construction.
Meanwhile, due to all very large of its volume and weight of lattice shaped steel plate pile large cylinder nominative of diameter 31.194m, long 37.1m, be difficult to guarantee the cylinder verticality after lower in the process that it is heavy that entirety is shaken.
Moreover, large cylinder entirety shake heavy in, will cause a top out-of-flatness because soil property is inhomogeneous.
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, the field condition that faces " all restricted up and down " (is construction area limit for height, the depth of water is shallow, features as poor geologic condition, marine environmental requirement is high) and the execution conditions of construction period under, diameter 31.194m, the lattice shaped steel plate pile large cylinder nominative of long 37.1m carries out the entirety heavy existing problem of shaking, the object of the present invention is to provide a kind of lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat method, to solve the existing problem of prior art.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat method, described method adopt single vibrating hammer plaid matching shaped steel plate pile large cylinder nominative divide into groups to shake heavy.
In preferred version, described single vibrating hammer taking 6 steel sheet piles in lattice shaped steel plate pile large cylinder nominative as one group shake simultaneously heavy.
Further, described grouping is shaken while sinking, adopts two 250t crane ships of joining respectively a vibrating hammer, and inside and outside lattice shaped steel plate pile large cylinder, both sides shake while sinking.
Further, described two 250t crane ships are symmetrical, carry out symmetry shake heavy, and the gradation heavy degree of depth of shaking.
Further, adopt in advance steel pipe pile to carry out punching in cylinder steel sheet pile position shaking before heavy.
Further, described grouping is shaken while sinking, at lattice shaped steel plate pile large cylinder outer setting steel hoop.
Technique provided by the invention has the following advantages with respect to prior art tool:
1) lattice shaped steel plate pile large cylinder combination free combat waterborne technique, be applicable to all land-based areas and form the lattice shaped steel plate pile embankment construction 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.The land pre-splicing restriction that is not subject to field condition, is specially adapted to the on-the-spot year very short region, off-lying sea of effective operation time.
2) " the combination free combat waterborne of large cylinder nominative steel sheet pile " technique does not need the above large-tonnage crane ship of 2000t, and construction cost is relatively little.
3) grouping is shaken to sink and has also been adapted to the stake top out-of-flatness problem that time stake causes because soil property is inhomogeneous.
4) before construction, adopt in advance steel pipe pile to carry out punching in cylinder steel sheet pile position, solved when cylinder entirety is transferred and be difficult to penetrate the problem of the geotextiles on sea bed face, and guaranteed the cylinder verticality after time stake.
5) adopt at large cylinder outer setting steel hoop, greatly reduced rocking after lower of steel sheet pile, and effectively controlled the cylinder verticality after time stake.
6) adopt symmetry shake heavy, control shake heavy direction and gradation and shake and sink the measures such as the degree of depth, effectively controlled the distortion of sheet pile after pile sinking.
Brief description of the drawings
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is a kind of man-made island steel sheet pile grid island wall construction plan view;
Fig. 2 is nominative pier position tooling bracket facade arrangement diagram;
Fig. 3 is support steel pile tube layout plan;
Fig. 4 is the structural representation of vibrating hammer;
Fig. 5 is chuck structure schematic diagram in vibrating hammer;
Fig. 6 is lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat process 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 the implementation process of lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat method with this.
In this example, the enforcement of this project has following condition:
1) construction area limit for height.Whole construction area is all positioned at aviation height-limit area, airport, and lattice shaped steel plate pile large cylinder job site limit for height is between+30mPD～+ 60mPD, and construction equipment is selected to be extremely restricted.Existing equipment cannot normally come into operation or service efficiency extremely low, must be newly-built and transformation equipment component could be applicable to this engineering construction needs, and subregion steel sheet pile also need relax in the phase and implement in limited aviation limit for height.
2) depth of water is shallow.This engineering construction region mud face absolute altitude reduces from south to north gradually, and nearly half ENGINEERING POINT absolute altitude is at-2.8mPD～-11mPD, and hardcore bed fills rear absolute altitude at-1.8mPD～-2mPD, mean sea level 1.2mPD, ebb tide mean low-water 0.3mPD.Because the depth of water is more shallow, construction ship needs operation by tide, and ships that transport cannot arrive construction point.
3) features as poor geologic condition, makes stake long.The about 15m-25m of bottom silt bed thickness, designing pile length 23.6m-39.1m, the part that this project large cylinder is embankment permanent structure simultaneously, major and minor lattice stake appearance is same.Due to limit for height, long stake cannot be disposable in place, needs on-the-spot pile extension.
4) complete off-shore operation, marine environmental requirement is high.Engineering is positioned at sea, and long-term setting of construction period island body periphery blocked dirty curtain, and large cylinder construction is confined in long and narrow region, and operation boats and ships are many, and the interference that intersects is larger.
5) constraint of cylinder deadweight.The single nominative steel sheet pile of this engineering gross weight is generally at 450t～560t.Under aviation limit for height condition, there is no at present suitable crane ship and once complete a nominative integral hoisting and sinking.
6) duration is tight.According to relevant requirements, except 5 lattice shaped steel plate pile large cylinders of reserved opening gate segment, the heavy work of establishing of all the other 129 lattice shaped steel plate pile large cylinders need complete in 420 days after commencement of works, after commencement of works, in 14th month, completes that steel sheet pile is heavy establishes work.Because heavy the establishing of lattice shaped steel plate pile large cylinder need could be implemented after geotextiles, hardcore bed and broken stone pile complete, and most of steel sheet pile construction boats and ships need be implemented to change, construction etc., and steel sheet pile is heavy established the practice of construction duration about about 8 months.Meanwhile, it is larger that steel sheet pile construction is affected by aviation limit for height, this engineering construction duration pretty nervous.
Based on field condition and the construction period of this " all restricted up and down ", the technique that the construction of lattice shaped steel plate pile large cylinder nominative has been selected a kind of " land pre-splicing, the waterborne combination free combat of 1/4 cylinder ".This technique, by assembled nominative sheet pile 1/4 cylinder in advance in inland, obtains corresponding 1/4 round steel sheet pile assembling sheet; Again assembled 1/4 good round steel sheet pile assembling sheet and the stake of closing up processing are transported to job site; Finally at the construction field (site), anchor in island wall inner side by special floating crane, 4 1/4 round steel sheet piles assembling sheets of one-sided lifting, steel sheet pile assembling sheet rotating positioning respectively outside the wall of Zai Jiang island, thus complete the steel sheet pile integral assembling of a lattice body.
For the sinking of lattice shaped steel plate pile large cylinder, at present on-the-spot whole manual labour skill, but under the shallow condition of aviation limit for height, the depth of water, there is no at present suitable crane ship and once complete an overlength sheet pile nominative integral hoisting and sinking.Therefore, when this engineering construction, for reducing an on-the-spot hoisting weight, full circle nominative is divided into 4 1/4 round steel sheet pile assembling sheets to be lifted respectively, thereby reduce the requirement of crane ship being hung to distance and elevating capacity, after on-the-spot spelling closes up, utilize frock moulding bed entirety to transfer, then shake heavy.
After assembled the completing of lattice body steel sheet pile, this example adopt vibrating hammer progressively, the layering heavy technique of shaking shakes the assembled lattice body steel sheet pile completing to be sink to design altitude.
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 tooling bracket
The on-the-spot splicing of 1/4 large cylinder is carried out on cylinder position special " tooling bracket ".While being somebody's turn to do " tooling bracket " design, consider the factors such as minimum height limiting zone limit for height, sea bed face absolute altitude, steel sheet pile length, working water level and preset clearance.With the requirement of scheme, " tooling bracket " need have supporting steel sheet pile weight, it is assembled to turn round, the unloading of sinking, dilate the functions such as support." tooling bracket " mainly consist of the following components (referring to Fig. 2) for this reason:
1) foundation support stake
According to geological conditions, load bearing requirements, various operating mode and water level, meteorological condition etc., tooling bracket basis adopts 9 steel pipe piles to support.Referring to Fig. 3, it is depicted as support steel pile tube layout plan, and wherein 8 support steel pile tubes 21 are evenly arranged in circle above, and 1 support steel pile tube 21 is arranged in round center.
Every lattice body steel sheet pile is all pulled out after shaking and sinking; And the mechanisms such as every support steel pile tube design of pile top adpting flange.
2) upper support jig structure
" tooling bracket " upper support moulding bed is made up of 9 support posts and 3 layers of horizontal frame platform etc., and top and middle part arrange fixed connection structure.Upper support moulding bed all can meet structural strength, rigidity and resistance to overturning requirement under various operating modes.
Wherein, " tooling bracket " upper support moulding bed is provided with 8 periphery steel pipe posts and 1 middle standing pillar supports, with steel pipe, the girder steel rigid connection of top structure, end platform structure, and between liftable upper mounting plate and middle platform by hinged seat and on steel roller and retaining mechanism hinged.Flange in the bottom and column, by gusset and column rigid connection, are processed with arc gain on flange, be connected by screw-thread steel bolt with 9, seabed piling bar.Middle standing pillar is provided with cat ladder and leads to each layer of platform for operating personnel.
3 layers of horizontal frame platform comprise end platform, middle platform and upper mounting plate
End platform
Bottom platform be winch steady job platform, steel sheep pile support and with lower support stake connecting platform.
Middle platform
Two-layer platform (middle platform) is the lifting platform of holding device and steel sheet pile stability.
Upper mounting plate
Three layers of platform (upper mounting plate) are to hang and rotating lifting platform for steel sheet pile, and upper mounting plate is made up of structures such as donought beam, walking dolly and fringe truss, middle part truss, hinged seat, retaining mechanisms.
3) lifting gear of " tooling bracket "
" tooling bracket " lifting gear is for driving platform and upper mounting plate lifting.
Steel sheet pile is carried by upper mounting plate collar tie beam and rotary machinery, by this system of 4 covers be located at 8 suspension centres on upper mounting plate collar tie beam taking 9 root posts as lead, realizes the lifting of steel sheet pile.
4) whirligig of " tooling bracket "
The whirligig of " tooling bracket " is for driving platform and upper mounting plate rotation.Mainly formed by following 3 parts: 1) upper mounting plate rotation collar tie beam (joining roller), 2) planet gear drives motor, 3) the part composition such as the T-shaped hook of middle level platform servo rotary.
5) the air bag dilating device of " tooling bracket "
Close up and be assembled into integral lattice for ease of steel sheet pile, each layer of platform girder steel radius of tooling bracket is all less than theoretical radius.Assembled closing up afterwards of steel sheet pile also can make the effective supporting steel sheet pile of moulding bed for compensating this preset clearance, is provided with air bag and dilates system on upper mounting plate and middle platform.
2, shake shipwreck machine prepare
Owing to having adopted the grouping heavy technique of shaking, therefore the large cylinder heavy large-scale crane ship that does not need entirety to shake more than heavy such 2000t that shakes is joined more than 20 large-scale vibrating hammer simultaneously.Grouping is shaken and heavy is adopted two 250t crane ship partitions not join 1 vibrating hammer to carry out, but crane ship boom height must adapt to on-the-spot limit for height requirement.
3, vibrating hammer is prepared
In view of this object of construction production is over-water construction, jack lift is all placed in operation on barge with deck, for reduce crane load as far as possible, vibrating hammer plektron pay the utmost attention to adopt hydraulic vibration driver (vibrating hammer of general equal-wattage (exciting force), hydraulic vibration driver weight and volume only for electric vibrating hammer into shape 50%).
For improve construction efficiency, this engineering intend taking 6 steel sheet piles as one group shake simultaneously heavy.According to this engineering steel plate, the required exciting force correlation computations of 5m thickness hardpan is squeezed in stake, chooses one in U.S. APE200-6 type, ICE-66C and ICE-1412 hydraulic vibration driver and be the steel sheet pile sinker that shakes.6 hydraulic chucks of every vibrating hammer configuration, 6 chucks can independently be locked respectively control, also can control, so that steel sheet pile shakes is heavy simultaneously.
After completing above-mentioned correlation technique preparation, determine relevant construction process and boats and ships layout
In this example, nominative construction is intended launching construction by 2 settings.For avoiding each barge anchor position to disturb, each setting all adopts 3, interval lattice body to carry out continuous productive process.Each setting configures 3 groups of bearing piles, moulding bed in 2 covers support.
The shipwreck machine that shakes is configured to: 1 support steel pile tube sets ship, 2 steel sheet piles shipwreck that shakes.
On this basis, this example carries out lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat technological process following (referring to Fig. 6):
The first step, steel sheet pile position pre-punched hole
Large cylinder position sea bed face structure is that one deck braided geotextile adds the thick hardcore bed of 2m.Geotextiles and hardcore bed complete before large cylinder construction.
Before large cylinder construction, adopt in advance steel pipe pile to carry out punching in cylinder steel sheet pile position, so that cylinder entirety easily penetrates the geotextiles on sea bed face while transferring, and guarantee the cylinder verticality after lower.
Before injection bearing pile, adopt steel pipe pile punching to abolish the locational geotextiles of cylinder position steel sheet pile, shake and adopt GPS location while sinking, guarantee that punching position is accurate.
Second step, support steel pile tube and the tooling bracket of mounting tool support
First, sink and establish support steel pile tube
On tooling bracket support steel pile tube employing barge with deck, configure 1 crawler crane and 1 hydraulic vibration driver enforcement pile sinking; On barge with deck, be provided with leading truck, and be provided with pile gripper on this leading truck, like this support steel pile tube is accurately led, and ensure the heavy stability of establishing in process of support steel pile tube simultaneously.
The precision of bearing pile stake position will directly have influence on interior moulding bed installation accuracy, thereby have influence on steel sheet pile lattice body positioning precision.For guaranteeing piling positioning precision, on every pile driving barge, configure 3 GPS survey stations, 1 inclinometer, 2 infrared range-measurement systems and Computerized monitor system etc. and carry out piling positioning (1 public reference station of land configuration), the certainty of measurement of GPS Piling Positioning is all in 30mm, and pile sinking completion off normal can be controlled in 100～150mm.Good for ensureing verticality and the stress of interior moulding bed, all bearing pile top mark height need be controlled in 20mm.
Sink and adopt GPS to control elevation (land total powerstation comparison is checked) while establishing first steel pipe pile; Heavy while establishing the 2nd～the 9th steel pipe pile, adopt T310 horizontal sweep instrument comparison elevation, as variant in elevation can by shake heavy and on pull out and adjust steel pipe pile tentatively to adjust a top mark high, take if desired mowing steel pipe pile pile crown and thick billet levelling.
Then, " tooling bracket " upper support moulding bed lifting
For meeting the limit for height requirement of different engineerings region, the lifting that the interior moulding bed of this engineering and 1/4 circle are pre-assembled is completed by the horizontal hanging arm crane ship of 2 differing heights respectively.Interior moulding bed highly can meet the minimum aviation limit for height requirement of zones of different after installing.Support jig adopts the lifting of special purpose ship 2 × 2000kN main hook to install.
Bearing pile top flange radially arranges bolt hole, support jig flange in the bottom is arranged circumferentially bolt hole, between upper lower flange, maximum allowable offset is 120mm, the spacing steel of bearing pile flange top center supports the 0～150mm that can rectify a deviation, and all can ensure that upper lower flange can dock smoothly and effectively connect with interior even if pile sinking deviation reaches 270mm.As when running into piling deviation and being greater than 270mm, adopt suitable anchor mode to rectify a deviation installing before support jig, dock and connection request with support jig flange until meet bearing pile flange.
In support jig installation process, measure in real time plan-position and the verticality of support jig.In permission situation, can pass through crane ship movable support moulding bed plan-position, reduce support jig plan-position deviation as far as possible.Support jig is installed verticality and is controlled (requirement of steel sheet pile verticality is by 1/75) by 1%, and generally the poor equal verticality requirement that can ensure support jig in 20mm is risen in stake.In the time that verticality can not meet the demands, crane ship lifts by crane support jig temporarily, and on bearing pile flange, adds billet levelling according to support jig gradient.
The 3rd step, 1/4 pre-assembled of round steel sheet pile lifting and full circle are assembled
Support jig installation in position and corresponding 1/4 round steel sheet pile assembling sheet are transported to behind scene, adopt horizontal hanging arm crane ship (601 or 602) anchoring burst lifting assembling sheet (suspension hook is 2 × 1500kN) inside the body of island.For preventing that assembling sheet in hoisting process swings, at the position, deck of crane ship, steel sheet pile enclasp device is set, these device two ends adopt fluid pressure type tightener to hold edge steel sheet pile tightly.
After pre-assembled difference hoisted in position of 4 group of 1/4 round steel sheet pile, special floating crane is withdrawn, and the shipwreck that shakes enters a little, utilizes the heavy ship-mounted crane that shakes to install respectively 4 and closes up steel sheet pile.
The 4th step, arranges outer anchor ear
For controlling rocking and cylinder verticality after lower of steel sheet pile, employing is at large cylinder outer setting steel hoop.After each cylindrical shell has closed up, below stake top and outside employing 2 roads, more than the stake end certain position (determining according to the embedded depth of the depth of water and estimation), steel hoop is embraced and is wrapped up in cylindrical shell, and the heavy later stage of shaking removes.
The 5th step, sheet pile grouping is welded to connect
In the 1/4 assembled base of cylinder, following certain position welding in every 3 steel sheet pile stakes top (close up mouthful both sides each 6 except); On-the-spot steel sheet pile installation in position and closed up after, whole steel sheet piles are welded into entirety, make cylindrical shell there is globality by welding, when assembled good steel sheet pile deadweight is sunk, ensure that steel sheet pile evenly avoids after sinking and shackle part to slip stake.Entirety is sunk, is shaken after heavy and progressively separates constraint.
The 6th step, slack tide period entirety is transferred
The sinking of steel sheet pile cylinder entirety will be chosen in slack period to be carried out, to reduce current, the impact of wave on lower pile verticality.Utilize elevating function that special tooling bracket possesses to carry out lifting and transfer, in the time transferring, steel sheet pile hangs on the hook of upper mounting plate, middle platform is positioned at lowest order and in locking state, by the hoister system on lower platform, transfer upper mounting plate, steel sheet pile sinks thereupon; Until steel sheet pile deadweight sinks to stopping, then removing steel sheet pile top lifting set square, after uncoupling, continue decline upper mounting plate lower than steel sheet pile top 2～3m, as the heavy guiding of shaking, prepare to shake heavy.In deadweight sinking process, according to water level, remove lower floor's steel hoop and adjust upper strata steel sheet pile levelness.
Whole sinking process is driven and is controlled by the lifting gear of tooling bracket.
The 7th step, it is heavy that grouping is shaken
Because scene is narrow, be accelerating construction progress, two the 250t crane ships of heavy employing that divide into groups to shake are joined vibrating hammer both sides inside and outside cylinder and are carried out.
Adopt symmetry shake heavy, control shake heavy direction and gradation and shake and sink the measures such as the degree of depth, effectively control the distortion of sheet pile after pile sinking.Concrete operating process is as follows:
The both sides inside and outside cylinder of first, joining vibrating hammer symmetry by two 250t crane ships carry out layered circulation shake heavy.
In this operation, first cylinder 196 piles are divided into groups, and numbering, every group of 5～6 piles; Then every ship adopts a vibrating hammer of joining 6 fixtures heavy every group of steel sheet pile that simultaneously shake, every group of stake heavy approximately 1.5～2m of the degree of depth that once shakes, then the one group of steel sheet pile that avales that shakes, 1.5～2m until cylinder 196 piles all sink; And then the recycled back heavy every group of steel sheet pile that shake make 196 piles, the 1.5～2m that synchronously sinks again, continue layered circulation shake heavy, along with sheet pile shake avale heavy, circulation decline upper mounting plate, until upper mounting plate approach in platform; Because upper mounting plate is all pressed close to steel sheet pile, hinder vibrating hammer, after needing to promote, shake again heavy.
Then, promote the upper mounting plate of tooling bracket, and carry out layered circulation shake heavy.
In this operation, the upper mounting plate of tooling bracket is proceeded after promoting to divide into groups, layered circulation shakes heavy steel sheet pile (process is described above), until steel sheet pile top approaches the middle platform of tooling bracket, and each submergence depth 1～1.5m.In cause, platform is all pressed close to steel sheet pile, hinders vibrating hammer, shakes heavy after needing to promote again.
Finally, promote the middle platform of tooling bracket, and carry out layered circulation shake heavy.
In this operation, after the middle platform of tooling bracket promotes, continuation is divided into groups, layered circulation shakes heavy steel sheet pile (process is described above), until steel sheet pile design top mark is high.Each submergence depth 0.5～1m.
The cooperating process that can be found out upper, middle and lower platform by the tooling platform operating process in steel sheet pile sinking process is as follows:
1) before steel sheet pile is installed, the hoister system of operation setting on lower platform, rises to highest order (upper mounting plate is suspended in the fixed block group of support top platform) by upper mounting plate, by and column between locking device locking upper mounting plate;
2) by the cucurbit chaining between upper, middle platform, middle platform is transferred and is down to lowest order, and by and column between locking device locking in platform.
3) carry out steel sheet pile assembling sheet and install, steel sheet pile is suspended on upper mounting plate.
4) after steel sheet pile closes up, the hoister system of operation setting on lower platform, transfers upper mounting plate by the assembly pulley being fixed on support top platform, and steel sheet pile sinks thereupon.
5) steel sheet pile sinks to stopping by deadweight, then removes steel sheet pile top lifting set square, removes with contacting of upper mounting plate and is free state.After steel sheet pile uncoupling, continue by winch decline upper mounting plate, to lower than steel sheet pile top 2～3m, as the heavy guiding of shaking, prepare to shake heavy.
6) along with sheet pile shake avale heavy, circulation decline upper mounting plate, until upper mounting plate approach in platform; Because upper mounting plate is all pressed close to steel sheet pile, hinder vibrating hammer, after needing to promote, shake again heavy.
7) upper mounting plate that promotes tooling bracket is to high-order and locking, and then carry out layered circulation shake heavy.
8) continuation is divided into groups, layered circulation shakes heavy steel sheet pile, until steel sheet pile top approaches middle platform.In cause, platform is all pressed close to steel sheet pile, hinders vibrating hammer, shakes heavy after needing to promote again.
9) by the cucurbit chaining between upper, middle platform, promote the middle platform of tooling bracket to the height that does not affect vibrating hammer, and locking, then carry out layered circulation shake heavy.
10) in, platform continues to divide into groups after promoting, layered circulation shakes heavy steel sheet pile, until steel sheet pile design top mark is high.
The 8th step, complete shake heavy after, remove steel hoop, tooling bracket, pull out support steel pile tube.
Known by upper instantiation, lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat scheme provided by the invention, has following feature:
1) diameter 31.194m lattice shaped steel plate pile large cylinder nominative completes after integral assembling, adopt vibrating hammer progressively, grouping, layering shake and be sink to design altitude.
2), according to on-the-spot " limit for height, water is shallow, mud is dark, narrow range " affined feature all up and down, worked out the cylinder nominative steel sheet pile combination waterborne technological process of doing Kongfu.
3) special tooling bracket has carried out special design and calculating, and its height design has solved the problem that is difficult to turnover use under on-the-spot limit for height condition; Structure design has solved during typhoon period frock stable problem, super long pile integral hanging problem; Cylinder entirety lifting after the elevating function that frock possesses has solved that super long pile is assembled and closes up is transferred problem, the sheet pile frock when heavy of shaking and is hindered vibrating hammer descent path problem; What frock possessed dilate support function has solved the problem such as inclination and Deformation control of super long pile.
4) the lattice shaped steel plate pile large cylinder of diameter 31.194m, long 37.1m adopts the single vibrating hammer grouping heavy technique of shaking, and is international first Application, has realized and has adopted the shake object of heavy great diameter and long steel sheet pile of small-sized crane ship.Grouping is shaken and heavy is adopted two 250t crane ships to join vibrating hammer to carry out, adapted to the condition that on-the-spot limit for height is little, the depth of water is shallow, joins more than 20 large-scale vibrating hammer than the entirety heavy large-scale crane ship that adopts that shakes simultaneously, and cost is greatly saved.
5) because overlength steel sheet pile rigidity is very weak, before construction, adopt in advance steel pipe pile to carry out punching in cylinder steel sheet pile position, solve when cylinder entirety is transferred and be difficult to penetrate the problem of the geotextiles on sea bed face, and guaranteed the cylinder verticality after time stake.
6) adopt at large cylinder outer setting steel hoop, greatly reduced rocking after lower of steel sheet pile, and effectively controlled the cylinder verticality after time stake.
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 (6)
1. a lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat method, is characterized in that, described method adopt single vibrating hammer plaid matching shaped steel plate pile large cylinder nominative divide into groups to shake heavy.
2. a kind of lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat method according to claim 1, is characterized in that, described single vibrating hammer taking 6 steel sheet piles in lattice shaped steel plate pile large cylinder nominative as one group shake simultaneously heavy.
3. a kind of lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat method according to claim 1 and 2, it is characterized in that, described grouping is shaken while sinking, adopts two 250t crane ships of joining respectively a vibrating hammer, and inside and outside lattice shaped steel plate pile large cylinder, both sides shake while sinking.
4. a kind of lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat method according to claim 3, is characterized in that, described two 250t crane ships are symmetrical, carry out symmetry shake heavy, and the gradation heavy degree of depth of shaking.
5. a kind of lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat method according to claim 1, is characterized in that, adopts in advance steel pipe pile to carry out punching shaking before heavy in cylinder steel sheet pile position.
6. a kind of lattice shaped steel plate pile large cylinder nominative sheet pile combination free combat method according to claim 1, is characterized in that, described grouping is shaken while sinking, at lattice shaped steel plate pile large cylinder outer setting steel hoop.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410293194.9A CN104047277B (en) | 2014-06-25 | 2014-06-25 | A kind of lattice steel sheet pile large cylinder nominative sheet pile combination free combat method |
| HK14110551.4A HK1197926A1 (en) | 2014-06-25 | 2014-10-22 | A construction technology of driving sheet piles of cellular main cell in groups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410293194.9A CN104047277B (en) | 2014-06-25 | 2014-06-25 | A kind of lattice steel sheet pile large cylinder nominative sheet pile combination free combat method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104047277A true CN104047277A (en) | 2014-09-17 |
| CN104047277B CN104047277B (en) | 2016-10-05 |
Family
ID=51500648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410293194.9A Active CN104047277B (en) | 2014-06-25 | 2014-06-25 | A kind of lattice steel sheet pile large cylinder nominative sheet pile combination free combat method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104047277B (en) |
| HK (1) | HK1197926A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205986A (en) * | 2019-05-07 | 2019-09-06 | 上海克络蒂材料科技发展有限公司 | A kind of method on the composite material floating island sheet pile Wei Haizao |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581083A (en) * | 2009-06-12 | 2009-11-18 | 中交二航局第三工程有限公司 | Method for constructing composite river bottom protection with steel sheet piles and soft mattresses for artificial island |
| CN101581097A (en) * | 2009-05-22 | 2009-11-18 | 中交第一航务工程局有限公司 | Vibration sinking technology method of large-sized combined steel plate pile |
| CN101581086A (en) * | 2009-06-12 | 2009-11-18 | 中交二航局第三工程有限公司 | Positioning riprapping method for constructing island breakwater of artificial island |
| CN101597901A (en) * | 2009-06-22 | 2009-12-09 | 中交二航局第三工程有限公司 | The double crane pile driving barge of off-lying sea man-made island construction is pieced together stake and pile pressing method |
| CN201746809U (en) * | 2010-07-13 | 2011-02-16 | 中交第四航务工程勘察设计院有限公司 | Structure for connecting adjacent cylinders in plug-in cylinder structure |
-
2014
- 2014-06-25 CN CN201410293194.9A patent/CN104047277B/en active Active
- 2014-10-22 HK HK14110551.4A patent/HK1197926A1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581097A (en) * | 2009-05-22 | 2009-11-18 | 中交第一航务工程局有限公司 | Vibration sinking technology method of large-sized combined steel plate pile |
| CN101581083A (en) * | 2009-06-12 | 2009-11-18 | 中交二航局第三工程有限公司 | Method for constructing composite river bottom protection with steel sheet piles and soft mattresses for artificial island |
| CN101581086A (en) * | 2009-06-12 | 2009-11-18 | 中交二航局第三工程有限公司 | Positioning riprapping method for constructing island breakwater of artificial island |
| CN101597901A (en) * | 2009-06-22 | 2009-12-09 | 中交二航局第三工程有限公司 | The double crane pile driving barge of off-lying sea man-made island construction is pieced together stake and pile pressing method |
| CN201746809U (en) * | 2010-07-13 | 2011-02-16 | 中交第四航务工程勘察设计院有限公司 | Structure for connecting adjacent cylinders in plug-in cylinder structure |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国交通部: "格形钢板桩码头设计与施工规程JTJ293-98", 《格形钢板桩码头设计与施工规程JTJ293-98》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205986A (en) * | 2019-05-07 | 2019-09-06 | 上海克络蒂材料科技发展有限公司 | A kind of method on the composite material floating island sheet pile Wei Haizao |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104047277B (en) | 2016-10-05 |
| HK1197926A1 (en) | 2015-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105386408B (en) | Deep-water bridge pile foundation construction method | |
| CN101725112B (en) | Construction method for piers | |
| CN106638640B (en) | Construction method without bottom concrete combined type cofferdam under the conditions of formation geology | |
| CN107869144B (en) | Comprehensive construction method for pre-cut ring-sealed double-wall steel cofferdam deep water foundation | |
| CN101538833B (en) | Vertical subsection double-wall steel cofferdam water stopping construction method | |
| CN106120839A (en) | A kind of construction technology of off-lying sea blower foundation embedded rock pile | |
| CN105350526B (en) | Method for setting up steel platform | |
| CN102720140A (en) | Large-span prestress concrete continuous beam deepwater pier construction process | |
| KR101211811B1 (en) | Cast in concrete pile With precast type Caisson | |
| CN105863042A (en) | All-steel structure building and construction method thereof | |
| CN102561371A (en) | Steel caisson enclosure structure at island-tunnel combination part | |
| CN106812144A (en) | Double-wall steel cofferdam construction method | |
| CN101200898A (en) | Construction method of drilling pile base for bare rock and shallow overburden | |
| CN102979039A (en) | Elevated trestle bridge construction method on covering-free steep bare rock in deepwater and rapid stream | |
| CN104164881A (en) | Piling wall overlapping cantilever foundation pit support construction method and structure | |
| CN104652392A (en) | Multifunctional tooling bracket for assembling and disassembling main lattice cylinder positions of large cylinders of lattice steel sheet piles | |
| CN209508992U (en) | A kind of underwater embedding rock steel sheet pile cofferdam structure | |
| CN109707002B (en) | Device and method for accurately positioning, sinking and installing large water intake head | |
| CN104060592B (en) | Method for 1/4 land territory preassembling and overwater dispersion of large cylinder main grids of cellular steel sheet piles | |
| CN202969333U (en) | Steel truss rock-socketed wharf structure | |
| CN104047276B (en) | The on-the-spot joining method of a kind of lattice steel sheet pile large cylinder nominative sheet pile 1/4 cylinder | |
| CN104088280A (en) | Combined construction process of pre-assembling integrated driving and splicing and separable driving of secondary cell of cellular steel sheet pile large cylinder | |
| CN109518674B (en) | Artificial island segment, assembled artificial island and construction method of assembled artificial island | |
| CN104047277B (en) | A kind of lattice steel sheet pile large cylinder nominative sheet pile combination free combat method | |
| CN104047289A (en) | Pile position disperse splicing and single hammer disperse hitting technology for lattice type steel sheet pile large cylinder auxiliary lattice |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1197926 Country of ref document: HK |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1197926 Country of ref document: HK |