CN109653225A - Steel sheet-pile cofferdam and its construction method - Google Patents
Steel sheet-pile cofferdam and its construction method Download PDFInfo
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- CN109653225A CN109653225A CN201811645414.4A CN201811645414A CN109653225A CN 109653225 A CN109653225 A CN 109653225A CN 201811645414 A CN201811645414 A CN 201811645414A CN 109653225 A CN109653225 A CN 109653225A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The present invention relates to steel sheet-pile cofferdams, including the interim casting platform of steel sheet-pile cofferdam leading truck, steel sheet-pile cofferdam and steel sheet-pile cofferdam systems stabilisation；The steel sheet-pile cofferdam systems stabilisation includes steel pile casting, cross-brace, longitudinal bracing, balance sand pocket, hoist engine and hangs peaceful；The steel sheet-pile cofferdam leading truck includes interior leading truck, outer leading truck and leading truck support system；The interim casting platform of steel sheet-pile cofferdam includes fixed rack, casting platform and pours device.The beneficial effects of the present invention are: fixed rack is fixed at the top of steel pile casting by the present invention, then casting platform is chimeric with fixed rack, and platform sliding wheel is set on platform, slide casting platform along fixed rack, in addition pouring device can slide along the pipe slideway that pours on casting platform, and final back cover range can cover entire cofferdam place.
Description
Technical field
The invention belongs to cofferdam field more particularly to a kind of steel sheet-pile cofferdam and its construction methods.
Background technique
Cofferdam refers in hydraulic engineering construction, to build permanent water conservancy projects, the provisional building enclosure built.Its
Effect is to prevent water and soil from building position into building, so that in cofferdam internal drainage, excavation pit builds building.One
As be mainly used in waterwork, except as formal building a part in addition to, cofferdam is generally removed after being finished.Cofferdam height
Higher than the peak level being likely to occur in the construction time.Traditional cofferdam often deflects during beating steel sheet pile, thus needs
The hole being adapted with steel sheet pile size is excavated in advance, steel sheet pile is hung in hole using crane, to ensure steel sheet pile not
Run-off the straight, however this method have the defects that it is certain, if the heatable adobe sleeping platform size excavated in advance is inaccurate, it is less than normal can not will
Steel sheet pile is put into, and steel sheet pile bigger than normal still can run-off the straight.In addition in coffering it is general all can back cover, traditional construction method will
Pour pipe to be passed through at back cover position, then concrete perfusion, to a construction section after, then move the device into next apply
Workshop section.This method efficiency is lower, during back cover, if cofferdam region is larger, repeatedly movement is needed to pour device, and pours
Device volume is larger, needs to expend a large amount of manpower and material resources；The mode of fine sand is inserted in engineering in cofferdam two sides to improve cofferdam
Shock resistance, although this method can effectively improve the impact resistance in cofferdam, the fine sand of filling is being constructed
After be not easily recycled.
It can ensure that steel sheet pile sets verticality, efficient back cover and cofferdam can be improved in conclusion needing to invent one kind at present
The steel sheet-pile cofferdam and its construction method of impact capacity.
Summary of the invention
The purpose of the present invention is overcoming deficiency in the prior art, a kind of steel sheet-pile cofferdam and its construction method are provided.
This steel sheet-pile cofferdam, including the interim casting platform of steel sheet-pile cofferdam leading truck, steel sheet-pile cofferdam and steel sheet pile enclose
Weir systems stabilisation；
The steel sheet-pile cofferdam systems stabilisation include steel pile casting, cross-brace, longitudinal bracing, balance sand pocket, hoist engine and
Peaceful is hung, setting cross-brace and longitudinal bracing at the top of cofferdam, vertically and horizontally support lower section is equipped with steel pile casting, the steel of edge
Casing is equipped with gusseted, and gusseted is equipped with guide table, is equipped at the top of guide table and hangs peaceful, hang on peaceful platform
Hoist engine is placed, balance sand pocket is placed on cofferdam two sides by hanging peaceful by hoist engine；Cofferdam is formed by Larsen steel sheet pile spelling,
Closed up on four angles in cofferdam by profile iron sheet pile；
The steel sheet-pile cofferdam leading truck includes interior leading truck, outer leading truck and leading truck support system, leading truck support
It is supported by leading truck in system, leading truck is divided into interior leading truck and outer leading truck, opposite one on interior leading truck and outer leading truck
Side is equipped with internal layer slideway；Leading truck includes positioning fixture, universal wheel, connecting plate, cylindrical bar and cylindrical slide, under positioning fixture
Side is equipped with universal wheel, and positioning fixture is equipped with cylindrical slide by connecting plate connecting cylinder bar, cylindrical bar inside, and positioning fixture is being led
It is slided on the internal layer slideway of frame；The leading truck support system include the gusseted being fixed on steel pile casting and be located at guiding
The guide support frame of frame bottom；
The interim casting platform of steel sheet-pile cofferdam includes fixed rack, casting platform and pours device；Fixed rack is solid
It is scheduled at the top of steel pile casting, casting platform is fixed on fixed rack, is placed on casting platform and is poured device, casting platform is in fixation
It is slided on sliding rail, pours device and slided on casting platform.
As preferred: being connected between Larsen steel sheet pile by connector, close up between the Larsen steel sheet pile at place and deformed steel flats is arranged
Stake, profile iron sheet pile are connect with Larsen steel sheet pile by connector；Guide table is connected by bearing diagonal.
As preferred: being connected with lifting rope on balance sand pocket, lifting rope one end connects hoist engine；Hang peaceful by hoist engine track and
A liter mouth composition is hung, lifting rope is pierced by from a liter mouth is hung.
As preferred: the gusseted includes support plate, diagonal brace and casing connecting plate, and casing connecting plate is welded on steel shield
On cylinder, it is provided with support plate on casing connecting plate, is welded with diagonal brace between casing connecting plate and support plate.
As preferred: guide support frame is made of support platform, vertical supporting and bridging.
As preferred: being equipped on the outside of positioning fixture and be oriented to sharp rib, Larsen steel sheet pile is placed along sharp rib is oriented to, Larsen steel plate
Stake is matched with sharp rib is oriented to.
As preferred: sliding rail preformed groove is reserved in the casting platform bottom, is provided with platform at the top of sliding rail preformed groove and slides
Wheel, platform sliding wheel are fitted and fixed with sliding rail.
As preferred: the device that pours placed on the casting platform includes pouring hopper, sliding wheel, pouring pipe and back cover
Plate, back cover plate, which is bolted, is pouring bottom of the tube, and junction is equipped with splice plate and screw hole；Pour pipe upper end connection pouring material
Bucket pours hopper lower part equipped with sliding wheel；Pipe and sliding wheel is poured to match with the pipe slideway that pours of casting platform.
The construction method of this steel sheet-pile cofferdam, comprising the following steps:
1) prefabricated steel pile casting；Prefabricated steel pile casting, and gusseted is welded for branch on the casing for partially having support function
Support leading truck；
2) steel pile casting is constructed；Steel pile casting is lifted to construction site using crane；
3) leading truck is placed；In leading truck corresponding position, vertical supporting is set, vertical supporting is spliced with steel pipe, and
Bridging is set on adjacent steel pipe；Then interior leading truck and outer leading truck are placed in support platform and gusseted；
4) bearing diagonal is constructed；One of bearing diagonal is set on adjacent leading truck, twice guide table is made to link together；
5) cofferdam construction；Larsen steel sheet pile is hung using crane and rises to position corresponding to inside and outside leading truck, then sliding is led
Positioning fixture on frame, Larsen steel sheet pile is along the guiding point rib slide downward on positioning fixture, to Larsen steel sheet pile construction
After the completion, it pushes the cylindrical bar on positioning fixture to cylindrical slide, inside contracts positioning fixture, be detached from Larsen steel sheet pile, then move
It moves the next position and cylindrical bar is pushed outwardly exposing positioning fixture, carry out the construction of next Larsen steel sheet pile；
6) casting platform is constructed；Fixed rack is fixed on the steel pile casting at both ends, then by the sliding rail of casting platform
Preformed groove is chimeric with fixed rack, and the two is made to be stitched together；
7) device installation is poured；Device will be poured using crane to transfer along the pipe slideway that pours on casting platform, makes to pour
Hopper clamping connection is built on casting platform, then back cover plate is connected to and pours bottom of the tube；
8) back cover；By concrete along pouring hopper and pour pipe and be cast in place bottom；
9) vertically and horizontally Construction of Supporting；It is arranged at the top of cofferdam and vertically and horizontally supports；
10) balance sand pocket construction；It is placed at the top of leading truck and hangs peaceful, and place hoist engine on hanging peaceful platform, benefit
Balance sand pocket is placed in cofferdam two sides with hoist engine, the lifting or decline of balance sand pocket are controlled by hoist engine.
The beneficial effects of the present invention are:
(1) present invention places sand pocket in cofferdam two sides to improve the impact resistance in cofferdam, controls sand pocket using hoist engine
Rising and decline, can be improved shock resistance, but also not only convenient for recycling.
(2) fixed rack is fixed at the top of steel pile casting by the present invention, then that casting platform is chimeric with fixed rack, and
Platform sliding wheel is set on platform, slides casting platform along fixed rack, in addition pouring device can be along pouring
The pipe slideway that pours on platform slides, and final back cover range can cover entire cofferdam place.
(3) present invention devises steel sheet pile leading truck, and steel sheet pile can be transferred along the positioning fixture on leading truck, positioning
Fixture may insure the verticality of steel sheet pile, and simplify work progress.
Detailed description of the invention
Fig. 1 is steel sheet-pile cofferdam overall top view；
Fig. 2 is the steel sheet-pile cofferdam systems stabilisation schematic diagram in Fig. 1；
Fig. 3 is detail drawing at A in Fig. 2；
Fig. 4 is detail drawing at B in Fig. 2；
Fig. 5 is the profile iron sheet pile schematic diagram in Fig. 3；
Fig. 6 is the Section A-A figure in Fig. 2；
Fig. 7 is the steel sheet-pile cofferdam leading truck schematic diagram in Fig. 1；
Fig. 8 is the leading truck top view in Fig. 7；
Fig. 9 is the leading truck front view in Fig. 7；
Figure 10 is the leading truck side view in Fig. 7；
Figure 11 is the section B-B figure in Fig. 7；
Figure 12 is the interim casting platform schematic diagram of steel sheet-pile cofferdam in Fig. 1；
Figure 13 is the C-C sectional view in Figure 12；
Figure 14 is to pour schematic device in Figure 12；
Figure 15 is detail drawing at C in Figure 14.
Description of symbols: 1-Larsen steel sheet pile；2-profile iron sheet piles；3-connectors；4-steel pile castings；5-bearing diagonals；
6-cross-braces；7-longitudinal bracings；8-guide tables；9-guide support framves；10-lifting ropes；11-hang peaceful；12—
Hang a liter mouth；13-balance sand pockets；14-hoist engines；15-support plates；16-outer leading trucks；17-interior leading trucks；18-internal layers
Slideway；19-positioning fixtures；20-universal wheels；21-connecting plates；22-cylindrical bars；23-cylindrical slides；24-vertical supportings；
25-bridgings；26-support platforms；27-fixed racks；28-pour hopper；29-casting platforms；30-, which pour pipe, slides
Road；31-pour pipe；32-sliding wheels；33-sliding rail preformed grooves；34-screw holes；35-splice plates；36-cofferdam；37-tiltedly
Support；38-casing connecting plates；39-are oriented to sharp rib；40-hoist engine tracks；41-back cover plates；42-platform sliding wheels.
Specific embodiment
The present invention is described further below with reference to embodiment.The explanation of following embodiments is merely used to help understand this
Invention.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, also
Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection scope of the claims in the present invention
It is interior.
The steel sheet-pile cofferdam, including the interim casting platform of steel sheet-pile cofferdam leading truck, steel sheet-pile cofferdam and steel sheet pile
Cofferdam systems stabilisation；
The steel sheet-pile cofferdam systems stabilisation includes steel pile casting 4, cross-brace 6, longitudinal bracing 7, balance sand pocket 13, elevator
Machine 14 and hanging peaceful 11, setting cross-brace 6 and longitudinal bracing 7 at the top of cofferdam, vertically and horizontally support lower section is equipped with steel pile casting 4,
The steel pile casting 4 of edge is equipped with gusseted, and gusseted is equipped with guide table 8, is equipped at the top of guide table 8 and hangs liter
Platform 11, hangs placement hoist engine 14 on peaceful 11, and balance sand pocket 13 is placed on cofferdam 36 by hanging peaceful 11 by hoist engine 14
Two sides improve the protecting against shock ability in cofferdam, improve the stability in cofferdam；Cofferdam is formed by 1 spelling of Larsen steel sheet pile, and the four of cofferdam
Closed up on a angle by profile iron sheet pile 2；
The steel sheet-pile cofferdam leading truck includes interior leading truck 17, outer leading truck 16 and leading truck support system, leading truck
Leading truck is supported by support system, leading truck is divided into interior leading truck 17 and outer leading truck 16, interior leading truck 17 and outer leading truck
Opposite side is equipped with internal layer slideway 18 on 16；Leading truck includes positioning fixture 19, universal wheel 20, connecting plate 21, cylindrical bar
22 and cylindrical slide 23, be equipped with universal wheel 20 below positioning fixture 19, positioning fixture 19 by 21 connecting cylinder bar 22 of connecting plate,
Cylindrical slide 23 is equipped on the inside of cylindrical bar 22, positioning fixture 19 slides on the internal layer slideway 18 of leading truck；The leading truck branch
Support body system includes the gusseted being fixed on steel pile casting 4 and the guide support frame 9 positioned at leading truck bottom；
The interim casting platform of steel sheet-pile cofferdam includes fixed rack 27, casting platform 29 and pours device；It is fixed to slide
Rail 27 is fixed on 4 top of steel pile casting, and casting platform 29 is fixed on fixed rack 27, places on casting platform 29 and pour device,
Casting platform 29 slides on fixed rack 27, pours device and slides on casting platform 29, therefore the interim casting platform
Entire cofferdam can be covered by pouring range.
It is connected between Larsen steel sheet pile 1 by connector 3, closes up setting profile iron sheet pile 2 between the Larsen steel sheet pile 1 at place, it is different
Shape steel sheet pile 2 is connect with Larsen steel sheet pile 1 by connector 3；Guide table 8 is connected by bearing diagonal 5, improves guide table 8
Stability.
Lifting rope 10 is connected on balance sand pocket 13,10 one end of lifting rope connects hoist engine 14；Peaceful 11 is hung by hoist engine track
40 form with liter mouth 12 is hung, and lifting rope 10 is pierced by from liter mouth 12 is hung.
Gusseted includes support plate 15, diagonal brace 37 and casing connecting plate 38, and casing connecting plate 38 is welded on steel pile casting 4
On, it is provided with support plate 15 on casing connecting plate 38, diagonal brace 37 is welded between casing connecting plate 38 and support plate 15.
Guide support frame 9 is made of support platform 26, vertical supporting 24 and bridging 25.
It is equipped on the outside of positioning fixture 19 and is oriented to sharp rib 39, Larsen steel sheet pile 1 is placed along sharp rib 39 is oriented to, Larsen steel sheet pile
1 matches with sharp rib 39 is oriented to.
Sliding rail preformed groove 33 is reserved in 29 bottom of casting platform, is provided with platform sliding wheel at the top of sliding rail preformed groove 33
42, platform sliding wheel 42 is fitted and fixed with sliding rail 27.
The device that pours placed on the casting platform 29 includes pouring hopper 28, sliding wheel 32, pouring pipe 31 and back cover
Plate 41, back cover plate 41, which is bolted, is pouring 31 bottom of pipe, and junction is equipped with splice plate 35 and screw hole 34, it can be ensured that pours
The concrete horizontal back cover built；It pours the connection of 31 upper end of pipe and pours hopper 28, pour 28 lower part of hopper equipped with sliding wheel 32；It pours
Pipe 31 and sliding wheel 32 are matched with the pipe slideway 30 that pours of casting platform 29.
The construction method of the steel sheet-pile cofferdam, comprising the following steps:
1) prefabricated steel pile casting 4；Prefabricated steel pile casting 4, and weld gusseted on the casing for partially having support function and be used for
Support guide frame；
2) steel pile casting 4 is constructed；Steel pile casting 4 is lifted to construction site using crane, the position of steel pile casting 4 need to be with design side
Case is corresponding；
3) leading truck is placed；In leading truck corresponding position, vertical supporting 24 is set, vertical supporting 24 is spliced with steel pipe,
And bridging 25 is set on adjacent steel pipe；Then interior leading truck 17 and outer leading truck 16 are placed on support platform 26 and triangle
In support；
4) bearing diagonal 5 is constructed；One of bearing diagonal 5 is set on adjacent leading truck, twice guide table 8 is made to be connected to one
It rises；
5) cofferdam 36 is constructed；Larsen steel sheet pile 1 is hung using crane and rises to position corresponding to inside and outside leading truck, is then slided
Positioning fixture 19 on leading truck, Larsen steel sheet pile 1 is along 39 slide downward of guiding point rib on positioning fixture 19, to Larsen steel
After the completion of sheet pile 1 is constructed, pushes the cylindrical bar 22 on positioning fixture 19 to cylindrical slide 23, inside contract positioning fixture 19, be detached from
Larsen steel sheet pile 1 then moves to the next position and is pushed outwardly cylindrical bar 22 and expose positioning fixture 19, carries out next drawing
The construction of gloomy steel sheet pile 1；
6) casting platform 29 is constructed；Fixed rack 27 is fixed on the steel pile casting 4 at both ends, then by casting platform 29
Sliding rail preformed groove 33 it is chimeric with fixed rack 27, both make to be stitched together；
7) device installation is poured；Device will be poured using crane to transfer along the pipe slideway 30 that pours on casting platform 29,
Make to pour 28 clamping connection of hopper on casting platform 29, then back cover plate 41 is connected to and pours 31 bottom of pipe；
8) back cover；By concrete along pouring hopper 28 and pour pipe 31 and be cast in place bottom；
9) vertically and horizontally Construction of Supporting；It is arranged at the top of cofferdam 36 and vertically and horizontally supports, improves the stability in cofferdam 36；
10) balance sand pocket 13 is constructed；It is placed at the top of leading truck and hangs peaceful 11, and place elevator on hanging peaceful 11
Machine 14, using hoist engine 14 36 two sides of cofferdam place balance sand pocket 13, by hoist engine 36 control balance sand pocket 13 lifting or
Decline.
Claims (9)
1. a kind of steel sheet-pile cofferdam, which is characterized in that including steel sheet-pile cofferdam leading truck, the interim casting platform of steel sheet-pile cofferdam and
Steel sheet-pile cofferdam systems stabilisation；
The steel sheet-pile cofferdam systems stabilisation include steel pile casting (4), cross-brace (6), longitudinal bracing (7), balance sand pocket (13),
It hoist engine (14) and hangs peaceful (11), setting cross-brace (6) and longitudinal bracing (7) at the top of cofferdam, vertically and horizontally support lower section
Equipped with steel pile casting (4), the steel pile casting (4) of edge is equipped with gusseted, and gusseted is equipped with guide table (8), leads
It is equipped at the top of to platform (8) and hangs peaceful (11), hang placement hoist engine (14) on peaceful (11), hoist engine (14) is by hanging liter
Platform (11) will balance sand pocket (13) and be placed on cofferdam (36) two sides；Cofferdam is formed by Larsen steel sheet pile (1) spelling, and four of cofferdam
Closed up on angle by profile iron sheet pile (2)；
The steel sheet-pile cofferdam leading truck includes interior leading truck (17), outer leading truck (16) and leading truck support system, leading truck
It is supported by leading truck on support system, leading truck is divided into interior leading truck (17) and outer leading truck (16), interior leading truck (17) and outer
Opposite side is equipped with internal layer slideway (18) on leading truck (16)；Leading truck includes positioning fixture (19), universal wheel (20), connects
Fishplate bar (21), cylindrical bar (22) and cylindrical slide (23), positioning fixture (19) lower section are equipped with universal wheel (20), positioning fixture (19)
By connecting plate (21) connecting cylinder bar (22), cylindrical slide (23) are equipped on the inside of cylindrical bar (22), positioning fixture (19) is being led
It is slided on the internal layer slideway (18) of frame；The leading truck support system include the gusseted that is fixed on steel pile casting (4) and
Guide support frame (9) positioned at leading truck bottom；
The interim casting platform of steel sheet-pile cofferdam includes fixed rack (27), casting platform (29) and pours device；It is fixed to slide
Rail (27) is fixed at the top of steel pile casting (4), and casting platform (29) is fixed on fixed rack (27), and casting platform is placed on (29)
Device is poured, casting platform (29) slides on fixed rack (27), pours device and slides on casting platform (29).
2. steel sheet-pile cofferdam according to claim 1, which is characterized in that between Larsen steel sheet pile (1) even by connector (3)
It connects, closes up setting profile iron sheet pile (2) between the Larsen steel sheet pile (1) at place, profile iron sheet pile (2) passes through with Larsen steel sheet pile (1)
Connector (3) connection；Guide table (8) is connected by bearing diagonal (5).
3. steel sheet-pile cofferdam according to claim 1, which is characterized in that be connected with lifting rope (10) in balance sand pocket (13), hang
Rope (10) one end connection hoist engine (14)；Peaceful (11) are hung by hoist engine track (40) and hangs a liter mouth (12) and forms, lifting rope
(10) it is pierced by from hanging a liter mouth (12).
4. steel sheet-pile cofferdam according to claim 1, which is characterized in that the gusseted include support plate (15), tiltedly
Support (37) and casing connecting plate (38), casing connecting plate (38) are welded on steel pile casting (4), and casing connecting plate is provided on (38)
Support plate (15) is welded with diagonal brace (37) between casing connecting plate (38) and support plate (15).
5. steel sheet-pile cofferdam according to claim 1, which is characterized in that guide support frame (9) is by support platform (26), perpendicular
It is formed to support (24) and bridging (25).
6. steel sheet-pile cofferdam according to claim 1, which is characterized in that be equipped on the outside of positioning fixture (19) and be oriented to sharp rib
(39), Larsen steel sheet pile (1) is placed along sharp rib (39) is oriented to, and Larsen steel sheet pile (1) is matched with sharp rib (39) is oriented to.
7. steel sheet-pile cofferdam according to claim 1, which is characterized in that it is pre- that sliding rail is reserved in casting platform (29) bottom
It stays slot (33), is provided with platform sliding wheel (42) at the top of sliding rail preformed groove (33), platform sliding wheel (42) is fitted and fixed with sliding rail
(27)。
8. steel sheet-pile cofferdam according to claim 1, which is characterized in that places on the casting platform (29) pours dress
It sets including pouring hopper (28), sliding wheel (32), pouring pipe (31) and back cover plate (41), back cover plate (41) is bolted
Pipe (31) bottom is poured, junction is equipped with splice plate (35) and screw hole (34)；It pours the connection of pipe (31) upper end and pours hopper (28),
Hopper (28) lower part is poured equipped with sliding wheel (32)；The pipe that pours for pouring pipe (31) and sliding wheel (32) and casting platform (29) is slided
Road (30) matches.
9. a kind of construction method of steel sheet-pile cofferdam as described in claim 1, which comprises the following steps:
1) prefabricated steel pile casting (4)；Prefabricated steel pile casting (4), and weld gusseted on the casing for partially having support function and be used for
Support guide frame；
2) steel pile casting (4) is constructed；Steel pile casting (4) is lifted to construction site using crane；
3) leading truck is placed；In leading truck corresponding position, vertical supporting (24) are set, vertical supporting (24) is spliced with steel pipe,
And bridging (25) are set on adjacent steel pipe；Then interior leading truck (17) and outer leading truck (16) are placed on support platform
(26) and in gusseted；
4) bearing diagonal (5) is constructed；One of bearing diagonal (5) are set on adjacent leading truck, are connected to twice guide table (8)
Together；
5) cofferdam (36) construct；Larsen steel sheet pile (1) is hung using crane and rises to position corresponding to inside and outside leading truck, is then slided
Positioning fixture (19) on leading truck, Larsen steel sheet pile (1) along guiding point rib (39) slide downward on positioning fixture (19),
After the completion of Larsen steel sheet pile (1) construction, pushes the cylindrical bar (22) on positioning fixture (19) to cylindrical slide (23), make to position
Fixture (19) inside contracts, and is detached from Larsen steel sheet pile (1), then moves to the next position and cylindrical bar (22) is pushed outwardly exposing and determine
Position fixture (19), carries out the construction of next Larsen steel sheet pile (1)；
6) casting platform (29) is constructed；Fixed rack (27) is fixed on the steel pile casting (4) at both ends, then by casting platform
(29) sliding rail preformed groove (33) is chimeric with fixed rack (27), and the two is made to be stitched together；
7) device installation is poured；Device will be poured using crane to transfer along pour pipe slideway (30) on casting platform (29),
Make to pour hopper (28) clamping connection on casting platform (29), then back cover plate (41) is connected to and pours pipe (31) bottom；
8) back cover；Concrete is cast in place bottom along pouring hopper (28) and pour pipe (31)；
9) vertically and horizontally Construction of Supporting；Setting vertically and horizontally supports at the top of cofferdam (36)；
10) balance sand pocket (13) construction；It places and hangs peaceful (11) at the top of leading truck, and place volume on hanging peaceful (11)
Machine (14) are raised, balance sand pocket (13) is placed in cofferdam (36) two sides using hoist engine (14), controls balance sand by hoist engine (36)
The lifting or decline of bag (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811645414.4A CN109653225B (en) | 2018-12-30 | 2018-12-30 | Steel sheet pile cofferdam and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811645414.4A CN109653225B (en) | 2018-12-30 | 2018-12-30 | Steel sheet pile cofferdam and construction method thereof |
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| CN109653225A true CN109653225A (en) | 2019-04-19 |
| CN109653225B CN109653225B (en) | 2020-12-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965556A (en) * | 2019-11-20 | 2020-04-07 | 中建桥梁有限公司 | Large-area underwater concrete pouring method |
| CN111691443A (en) * | 2020-06-22 | 2020-09-22 | 福建省华策建设集团有限公司 | Larsen steel sheet pile cofferdam and construction method thereof |
| CN114482077A (en) * | 2022-04-13 | 2022-05-13 | 三亚宏岩岩土工程有限公司 | Foundation ditch intelligence braced system with antiseismic impervious effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110965556A (en) * | 2019-11-20 | 2020-04-07 | 中建桥梁有限公司 | Large-area underwater concrete pouring method |
| CN111691443A (en) * | 2020-06-22 | 2020-09-22 | 福建省华策建设集团有限公司 | Larsen steel sheet pile cofferdam and construction method thereof |
| CN111691443B (en) * | 2020-06-22 | 2021-09-28 | 福建省华策建设集团有限公司 | Larsen steel sheet pile cofferdam and construction method thereof |
| CN114482077A (en) * | 2022-04-13 | 2022-05-13 | 三亚宏岩岩土工程有限公司 | Foundation ditch intelligence braced system with antiseismic impervious effect |
| CN114482077B (en) * | 2022-04-13 | 2022-06-28 | 三亚宏岩岩土工程有限公司 | Foundation ditch intelligence braced system with impervious effect of antidetonation |
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| CN109653225B (en) | 2020-12-25 |
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