CN104805857B - One detachably recycles bottomless steel jacket box and construction method thereof - Google Patents
One detachably recycles bottomless steel jacket box and construction method thereof Download PDFInfo
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- CN104805857B CN104805857B CN201510225841.7A CN201510225841A CN104805857B CN 104805857 B CN104805857 B CN 104805857B CN 201510225841 A CN201510225841 A CN 201510225841A CN 104805857 B CN104805857 B CN 104805857B
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Abstract
The present invention relates to field of bridge construction, be specifically related to one and detachably recycle bottomless steel jacket box and construction method thereof.It is the bottomless Guan Bi cofferdam that several independent case body being arranged on around underwater support table are formed by connecting from bottom to top, and each described independent case body is enclosed by several box unit faces and forms；Between described independent case body and independent case body, it is connected by ring flange and bolt between described box unit face and box unit face；Described ring flange is positioned at inside casing；It is provided with casing in described independent case body reinforce directly support and reinforce the straight casing reinforcing diagonal brace supportting angle in an acute angle with described casing；Described casing is reinforced the two ends of diagonal brace and is intersected with the adjacent boxes elemental area of same independent case body.Using the bottomless steel jacket box structure of the present invention, it may not be necessary to large-scale crane, less demanding to place, casing can recycle, and saves construction cost.
Description
Technical field
The present invention relates to field of bridge construction, be specifically related to one and detachably recycle bottomless steel jacket box and construction party thereof
Method.
Background technology
Along with China's economic development, highway, railway are constructed on a large scale, for adapting to the needs of transportation, a lot of highways, ferrum
The circuit of road and bridge beam designs across great river, sea, thus underwater support table, bridge pier can be found everywhere.At home, the construction of underwater support table
Method is a lot, including single (double) wall steel cofferdam, steel boxed cofferdam, builds island open cut, open caisson, pneumatic caisson etc., various construction methods
Differ from one another.Because bottomless steel jacket box is wide because being suitable for stratum ratio, so, it is a kind of conventional that bottomless steel jacket box becomes underwater support table
Construction method.The construction method used at present is a lot, but the most similar, during underwater support table construction, owing to steel jacket box is heavier, and steel
It is generally required to large-scale crane coordinates during hollow steel box immersion, it is desirable to provide crane place, the requirement to place is high, after construction terminates, and set
Case is not removed, and causes waste of material, increases engineering cost.
CN102409690A (2012-4-11) discloses a kind of multiple stage continuous jack and synchronizes to transfer bottomless double-wall steel casing
The construction technology in cofferdam, but the method yet suffers from the problems referred to above.
Summary of the invention
An object of the present invention is to solve prior art to cause construction cost to increase because steel jacket box can not recycle
The problems such as difficulty, it is provided that a kind of detachable, recycle, construction safety is reliable, reduce a kind of detachable circulation of engineering cost
Utilize bottomless steel jacket box.
The two of the purpose of the present invention be to provide a kind of detachable, recycle, construction safety is reliable, reduce engineering cost
A kind of construction method detachably recycling bottomless steel jacket box.
First technical purpose of the present invention has the technical scheme that
One detachably recycles bottomless steel jacket box, its be several independent case body of being arranged on around underwater support table from
Lower and on the bottomless Guan Bi cofferdam that is formed by connecting, each described independent case body is enclosed by several box unit faces and forms；Described
Between independent case body with independent case body, it is connected by ring flange and bolt between described box unit face and box unit face；Institute
State ring flange to be positioned at inside casing；
It is provided with casing in described independent case body reinforce straight support and reinforce the straight set supportting angle in an acute angle with described casing
Diagonal brace reinforced by case；Described casing is reinforced the two ends of diagonal brace and is intersected with the adjacent boxes elemental area of same independent case body.
Using the bottomless steel jacket box structure of the present invention, it may not be necessary to large-scale crane, less demanding to place, casing can
To recycle, save construction cost.
As preferably, the height of every layer of described independent case body is 1.5-2.5m, and every layer assembled by 4 faces；Described solely
Vertical box inside welding is provided with suspension ring.
Use this structure, it is simple to hang assembly and disassembly, save construction cost.
As preferably, bottom orlop casing, bolt do not gone up by above 1m position adpting flange.
Use this structure, can be easy to hang assembly and disassembly while ensureing safety.
As preferably, described casing is reinforced straight support and is disposed in levels independent case body.
Use this structure, it is ensured that the bottomless steel jacket box of the present invention has enough supports and safety.
As preferably, described casing is reinforced straight support and is positioned in same level with described casing reinforcing diagonal brace.
Use this structure, support and the safety of the bottomless steel jacket box of the present invention can be strengthened further.
As preferably, the angle of straight support and described casing reinforcing diagonal brace reinforced by described casing is 45 °.
As preferably, it is arranged in the independent case body in bottomless steel jacket box intermediate layer to be provided with and is positioned in same level and group
Close and form the described casing reinforcing straight support consistent with independent case body structure.
Use this structure, support and the safety of the bottomless steel jacket box of the present invention can be strengthened further, and saving is executed
Work material and cost.
The steel wire rope being arranged on bottomless steel jacket box top is had it is highly preferred that connect on described angle steel.
Using this structure, it is simple to follow-up hang assembly and disassembly, construction cost is low.
Second technical purpose of the present invention has the technical scheme that
A kind of construction method detachably recycling bottomless steel jacket box, it comprises the following steps successively:
(1) mast-up makes and lays: before mast-up is installed, and first drilled pile platform top half is removed, leaves steel pipe
Stake；Drilled pile pile crown laitance is cut to concrete surface, the suspension bracket post of mast-up is placed on the pile crown abolished, then will lifting
The steel-pipe pile of frame and drilled pile platform, by being welded and fixed, supports with suspension bracket post simultaneously and is welded with drilled pile casing by suspension bracket post
Fixing, welding hanging ring on hanging beam, each suspension ring are installed at least one calabash；
The most bottomless steel jacket box make: according to cap design of pile size make steel jacket box, it is ensured that have to cushion cap limit inside casing to
Few 1m distance, reserves bearing platform construction work space；
(3) interim bracket is installed on steel-pipe pile；
(4) casing leading truck is installed: leading truck is fixed by welding on the steel-pipe pile on four angles of drilled pile platform；
(5) assembled orlop casing on interim bracket: with crane, orlop casing is placed on interim bracket, is facing
Time bracket on assembled orlop casing；
(6) interim bracket is removed and orlop hollow steel box immersion: after good for orlop casing assembly, will with the calabash on hanging beam
It is sling, and removes all interim brackets, by assembled good orlop hollow steel box immersion and make orlop casing end face higher than the water surface, with
Facilitate the connection of last layer casing and this layer of casing；
(7) the assembly of second layer casing and sinking: a box unit face crane of second layer casing is placed under
On layer casing, separately hung with the calabash being similarly installed on hanging beam and prevent from rocking, by second layer casing and orlop casing
After connecting, with described calabash, is somewhat sling in the described box unit face of described second layer casing, it is ensured that orlop casing exists
Calabash no longer stress on described box unit face, then dismantles the calabash not stressed on orlop casing, with same side
The calabash in other box unit face is dismantled by method；The most assembled good hollow steel box immersion, noting during sinking will be by independent case body
Box unit face synchronize sink；
(8) repeat step (7), assembled third layer casing on second layer casing, assembled 4th layer of set on third layer casing
Case ... until hollow steel box immersion is to design attitude；
(9) remove mast-up, extract the steel-pipe pile of drilled pile platform；
If (10) step (8) casing can not sink down into design attitude by deadweight, then, after completing step (9), utilize mast-up
Shaped steel, shaped steel is laid on casing top, shaped steel lays reinforced plastic water container, then toward water filling in reinforced plastic water container until steel jacket box sinks
To design attitude；
The most progressively the water in casing is got rid of, along with the decline of water level progressively adds inner support in casing in casing, reach
After requiring, in removing casing, mud is to designed elevation, adds wood support, then apply blinding concrete bottom casing；
(12) casing is removed: treats that cushion cap, pier construction are complete and just can be removed by casing, each with casing with angle steel before removing
Longitudinal piece in face welds several points, connects as interim, angle steel longitudinal pitch about 1m, and on each angle steel, on bolt, steel wire rope is also
By steel wire rope number, all steel wire ropes are temporarily fixed at casing top, place stand-by, in addition to casing top layer top, by casing its
He disassembles by the connecting bolt at each angle of each layer, after checking that confirmation does not has connecting bolt, in casing, water filling reduces casing
All inner supports are the most all removed along with water level is gradually increasing, are treated not have inside and outside casing hydraulic pressure by outer differential water pressures
Difference, starts to remove casing: whole casing is removed in four times, removes an elemental area every time, must be intended to during dismounting the face removed with
The interim angle cleat crane in the face being connected with this dismounting face by bolt steel wire rope on angle steel before from bottom to up by
Individual slinging until angle steel completely disengages from casing, after angle steel departs from casing, steel wire rope on bolt on the suspension ring of this elemental area, crane leads to
Cross steel wire rope and hang this elemental area, remove other connecting bolts of this elemental area and adjacent cells face, release this elemental area and phase
The connection of adjacent elemental area, makes this elemental area become independent face, is connected without any with other elemental areas, hung by this elemental area with crane
From on the bank, by same way, other elemental areas of casing are removed one by one.
Orlop casing of the present invention i.e. ground floor casing；Leading truck of the present invention can play guiding, positioning action, by leading
Can be by hollow steel box immersion to precalculated position to the effect of frame.Leading truck is welded on steel-pipe pile, it is ensured that casing sink time each
The axis in face does not deviates by precalculated position.After casing assembly well, whether sink to design attitude, all carry out step 9, do not have
Sink to design attitude and just carry out step 10；If having sunk to design attitude, then skip step 10, carry out step 11.At set
Bottom portion adds wood support, its objective is to increase the safety of casing, applies blinding concrete, and wood is supported and buries by blinding concrete
Living, wood supports and does not further takes out.
As preferably, described step (10), toward water filling in reinforced plastic water container, if after filling water or can not sink, then uses vibration hammer
Vibration reinforced plastic water container, until steel jacket box sinks down into design attitude.
As preferably, mast-up is made up of 8 suspension ring on 4 suspension bracket posts, 4 hanging beams, hanging beams and support member；Described often
Root hanging beam installs two 2 suspension ring.
For guaranteeing that hanging beam can be sling safely whole casing, when making mast-up, calculating to be passed through determines the shaped steel chi of hanging beam
Very little.Each suspension ring are installed a calabash.Suspension ring are welded on hanging beam.The position of suspension ring: ensure the calabash being arranged on suspension ring
Reed is sling after casing, and the axis of casing is at design attitude.
So, need not large-scale crane coordinate when casing is dismantled.Between layers, between face and face by ring flange even
Connecing, ring flange is positioned at inside casing, and bolt do not gone up by orlop casing (ground floor casing) bottom about 1m adpting flange.In casing
The vertical axis of the suspension ring on side welding hanging ring, its vertical axis and hanging beam is on the same line.
As preferably, the interim bracket of described step (5) is arranged on the steel-pipe pile of drilled pile platform outermost, interim bracket
Use I-steel, be fixed by welding on the steel-pipe pile of outermost；Use at the connecting sewing of casing when described step (8) is assembled
Collision mat made by 8-10mm rubber slab, and local at decussation seam uses atomized ash to carry out strengthening closure with cotton-wool.
Interim bracket is slightly above the water surface, convenient assembled orlop casing (ground floor casing) on bracket.Interim bracket is given
One platform for lining of casing, is possible to prevent casing double swerve to be not easy to assembly.
As preferably, when welding casing with angle steel, weld seam is not passed through longitudinal piece of casing.
Accompanying drawing explanation
Fig. 1 is drilled pile Platform pipe stake and the mast-up floor map of the embodiment of the present invention；
Fig. 2 is the mast-up elevational schematic view of the embodiment of the present invention；
Fig. 3 is the orlop casing assembly well rear schematic diagram of the embodiment of the present invention；
Fig. 4 is that front view reinforced by embodiment of the present invention casing；
Fig. 5 is that top view reinforced by embodiment of the present invention casing；
Fig. 6 is embodiment of the present invention box unit face and Bolted angle connection schematic diagram；
Fig. 7 is that the present invention detachably recycles bottomless steel jacket box overall schematic；
Fig. 8 is that the present invention detachably recycles bottomless steel jacket box schematic top plan view；
Fig. 9 is that the present invention detachably recycles bottomless steel jacket box and riverbed, river surface and the front elevational schematic of cushion cap combination；
Figure 10 be before Fig. 6 amplifier section of the present invention i.e. removes casing angle steel with casing longitudinal direction piece connection diagram；
Figure 11 is that the present invention adds water tank schematic diagram on casing top；
Wherein, 1-casing；Straight support reinforced by 2-casing；Diagonal brace reinforced by 3-casing；4-round log；5-cushion cap；6-bed course；7-holes
Stake；8-riverbed；9-river surface；10-steel-pipe pile；11-casing；12-suspension bracket post；13-suspension bracket post supports；14-hanging beam；15-holds in the palm temporarily
Frame；16-leading truck；17-calabash；18-drilled pile platform；19-shaped steel；20-reinforced plastic water container；21-angle steel；22-suspension ring；23-bracket；
24-weld seam；25-longitudinal direction piece.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Fig. 1-Figure 10, detachably recycling bottomless steel jacket box 1, it is be arranged on around underwater support table some
The bottomless Guan Bi cofferdam that individual independent case body is formed by connecting from bottom to top, each independent case body enclosed by several box unit faces and
Become；Between independent case body with independent case body, it is connected by ring flange and bolt between box unit face and box unit face；Flange
Dish is positioned at inside casing；It is provided with casing in independent case body reinforce straight support 2 and reinforce the straight set supportting 2 angles in an acute angle with casing
Diagonal brace 3 reinforced by case；Casing is reinforced the two ends of diagonal brace 3 and is intersected with the adjacent boxes elemental area of same independent case body.Such as every layer solely
The height of vertical casing is 1.5-2.5m, and every layer assembled by 4 faces；Inside independent case body, welding is provided with suspension ring 22.
Considering from safety and construction cost, bottom orlop casing, bolt do not gone up by above 1m position adpting flange.Set
Case is reinforced straight support 2 and is disposed in levels independent case body.Casing is reinforced straight support 2 and is positioned at same water with casing reinforcing diagonal brace 3
In plane.The angle of straight support 2 and casing reinforcing diagonal brace 3 reinforced by casing is 45 °.It is arranged on the independence in bottomless steel jacket box 1 intermediate layer
It is provided with on casing to be positioned in same level and combine and forms the casing reinforcing straight support 2 consistent with independent case body structure.
For the ease of dismounting, the spot welding of junction, box unit face connects angle steel 21；Connect on angle steel 21 and be arranged on nothing
The steel wire rope at end steel jacket box 1 top.As shown in Figure 10, when welding casing with angle steel 21, weld seam 24 is not passed through casing
Longitudinal piece 25.In this example, underwater support table a size of 7m*7m*2.5m(long * width * is high), korneforos mud is relatively deep, and place, riverbank has
Limit, large-scale crane lifting operation is difficult to carry out, and can only use small crane coordinative construction, uses 25t truck crane in this example.This
Example underwater support table pier shaft uses the detachable construction method recycling bottomless steel jacket box to sequentially include the following steps:
(1) mast-up makes and lays: before mast-up is installed, and first drilled pile platform top half is removed, leaves steel pipe
Stake 10.Drilled pile 7 pile crown laitance as shown in Figure 1 and Figure 2, is cut to concrete surface, the suspension bracket post 12 of mast-up is put by mast-up
On the pile crown abolished, then by the steel-pipe pile 10 of mast-up and drilled pile platform 18 by being welded and fixed, use suspension bracket simultaneously
Post supports 13 and is welded and fixed with drilled pile casing 11 by suspension bracket post 12, and welding hanging ring on hanging beam installs 1 calabash on each suspension ring
17.Mast-up is made up of 2 suspension ring of 8 every, suspension ring hanging beams on 4 suspension bracket posts 12,4 hanging beams 14, hanging beams and support member.
For guaranteeing that hanging beam 14 can be sling safely whole casing, when making mast-up, calculating to be passed through determines the steel section size of hanging beam 14.
Each suspension ring are installed a calabash.Suspension ring are welded on hanging beam.The position of suspension ring: ensure the calabash 17 being arranged on suspension ring
Slinging after casing, the axis of casing is at design attitude.
(2) bottomless steel jacket box makes: make steel jacket box 1 according to cap design of pile size, it is ensured that inside casing to cushion cap limit about
There is 1m distance, reserve bearing platform construction work space.
If bottomless steel jacket box is divided into dried layer, the height of every layer is about 2m, and every layer assembled by 4 faces.So, at set
Need not large-scale crane during case dismounting coordinate.Between layers, being connected by ring flange between face and face, ring flange is positioned at casing
Inner side, bottom orlop casing i.e. ground floor casing, bolt do not gone up by about 1m adpting flange.Welding hanging ring inside casing, its vertical pivot
The vertical axis of the suspension ring on line and hanging beam is on the same line.In this example, bottomless steel jacket box is formed by 4 layers, every layer from top to bottom
Highly being respectively as follows: 1m+2m+2m+2m, casing every layer is made up of 4 faces, and four angles are set as fillet, and piece comes one on angle
Point, digression about about 40cm；Layer passes through Flange joint with layer, face with face.
(3) interim bracket 15 is installed on steel-pipe pile 10.Interim bracket 15 is arranged on the steel of drilled pile platform 18 outermost
On pile tube 10, interim bracket uses I-steel, is fixed by welding on the steel-pipe pile of outermost.Interim bracket is slightly above water
Face, convenient assembled orlop casing i.e. ground floor casing on bracket.
(4) casing leading truck is installed: leading truck 16 is fixed by welding in the steel-pipe pile on four angles of drilled pile platform
On 10.Leading truck 16 can play guiding, positioning action, can be by hollow steel box immersion to pre-determined bit by the effect of leading truck 16
Put.Leading truck is welded on steel-pipe pile 10, it is ensured that casing axis in each face when sinking does not deviates by precalculated position.
(5) assembled orlop casing i.e. ground floor casing on interim bracket 15: orlop casing is placed in crane
On interim bracket 15, assembled orlop casing i.e. ground floor casing on interim bracket 15.Casing one spelling given by interim bracket 15
Assembling platform, is possible to prevent casing double swerve to be not easy to assembly.
(6) interim bracket is removed and orlop casing i.e. ground floor hollow steel box immersion: by the casing of the bottom i.e. ground floor set
After case assembly is good, sling with 8 calabashs 17 on hanging beam, removed the most interim bracket 15, by orlop set good for assembly
Case i.e. ground floor hollow steel box immersion is slightly above the water surface to casing end face, to facilitate the connection of last layer casing and this layer of casing.
(7) assembly of second layer casing and sinking: a face crane of second layer casing is placed in orlop casing
I.e. on ground floor casing, another being hung with 2 calabashs (being similarly installed on hanging beam) prevents from rocking, by second layer casing and
After i.e. ground floor casing connects, somewhat sling, it is ensured that orlop casing that is in this face of casing by lower floor's casing with these 2 calabashs
One layer of casing, two calabash 17 no longer stress on this face, then by do not stress on orlop casing i.e. ground floor casing that
Two calabashs are dismantled, and are dismantled by the calabash in other 3 faces by same method.8-10mm is used at the connecting sewing of casing time assembled
Collision mat made by rubber slab, and local at decussation seam uses atomized ash to carry out strengthening closure with cotton-wool, by casing good for assembly
Sink, note during sinking wanting 4 faces to synchronize.
(8) step (7) is repeated, assembled third layer casing on second layer casing, assembly the 4th layer on third layer casing
Casing ... until hollow steel box immersion is to design attitude.
(9) remove mast-up, extract the steel-pipe pile 10 of drilled pile platform.
(10) if can not sink down into design attitude by deadweight in step (8) casing, then, after completing step (9), utilization is hung
The shaped steel 19 shelved, is laid on casing top by shaped steel 19, lays reinforced plastic water container 20 on shaped steel, then toward water filling in reinforced plastic water container, if
Still can not sink after filling water, then vibrate reinforced plastic water container with vibration hammer, until steel jacket box sinks down into design attitude.Sink to design
Behind position, reinforced plastic water container 20 and shaped steel 19 are removed.
(11) progressively the water in casing is got rid of, along with in casing, the decline of water level progressively adds inner support in casing and enters
Row is reinforced, and after reaching requirement, in removing casing, mud is to designed elevation, adds wood and support such as round log 4, then bottom casing
Applying concrete cushion 6, next step abolishes pile crown, construction bearing platform and pier shaft.
(12) casing is removed: treats that cushion cap, pier construction are complete and just can be removed by casing, with angle steel and casing 4 before removing
Longitudinal piece in individual face welds, and weld seam disconnects at casing connecting sewing, sees Fig. 5, connects, on each angle steel as interim
On bolt 1 steel wire rope and by steel wire rope number, all steel wire ropes are temporarily fixed at casing top, place stand-by, except casing top layer
Outside top, the connecting bolt in other 4 faces of each layer of casing with face is disassembled, if orlop casing i.e. ground floor casing has even
Connecting bolt inside mud, then should be removed part mud and then also be disassembled by the bolt in mud, checks and confirms not connect
After connecting bolt, in casing, water filling reduces differential water pressures inside and outside casing, along with water level is gradually increasing the most progressively by all interior
Support and all remove, treat not have inside and outside casing differential water pressures, start to remove casing: whole casing is removed in four times, remove one every time
Individual elemental area, the interim angle cleat 21 in the face that the face that must be intended to remove during dismounting is connected with this dismounting face passes through with crane
Bolt steel wire rope on angle steel 21 is sling the most one by one until angle steel 21 completely disengages from casing before, and angle steel 21 departs from casing
After, steel wire rope on bolt on the suspension ring of this elemental area, crane hangs this elemental area by steel wire rope, removes this elemental area with adjacent
Other connecting bolts of elemental area, release the connection of this elemental area and adjacent cells face, make this elemental area become independent face, with it
This elemental area, without any connection, is hung on the bank, by same way by other elemental areas of casing by his elemental area with crane
Remove one by one.
Using the present invention, result shows, it may not be necessary to large-scale crane, less demanding to place, and casing can circulate
Use, save construction cost.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
The present embodiment can be made after reading this specification by member as required does not has the amendment of creative contribution, but as long as at this
All protected by Patent Law in the right of invention.
Claims (7)
1. the construction method detachably recycling bottomless steel jacket box (1), it is characterised in that:
Described detachably recycle bottomless steel jacket box (1) if for the dried layer independent case body that is arranged on around underwater support table from lower and
On the bottomless Guan Bi cofferdam that is formed by connecting, every layer of described independent case body is enclosed by several box unit faces and forms；Described independence
Between casing with independent case body, it is connected by ring flange and bolt between described box unit face and box unit face；Described method
Blue dish is positioned at inside steel jacket box；
It is provided with casing in described independent case body reinforce straight support (2) and reinforce straight support (2) angle in an acute angle with described casing
Diagonal brace (3) reinforced by casing；Described casing is reinforced the two ends of diagonal brace (3) and is intersected with the adjacent boxes elemental area of same independent case body；
The height of every layer of described independent case body is 1.5-2.5m, and every layer assembled by 4 box unit faces；Described independent case body
Inner side welding is provided with suspension ring；
Construction method comprises the following steps successively:
(1) mast-up makes and lays: before mast-up is installed, and first drilled pile platform (18) top half is removed, leaves steel pipe
Stake (10)；Drilled pile (7) pile crown laitance is cut to concrete surface, the suspension bracket post (12) of mast-up is placed in the pile crown abolished
On, then by the steel-pipe pile (10) of mast-up and drilled pile platform (18) by being welded and fixed, support (13) with suspension bracket post simultaneously
Suspension bracket post (12) is welded and fixed with drilled pile casing (11), welding hanging ring on hanging beam, each suspension ring are installed at least one calabash
Reed (17)；
(2) bottomless steel jacket box makes: make steel jacket box (1) according to cap design of pile size, it is ensured that have to cushion cap limit inside steel jacket box
At least 1m distance, reserves bearing platform construction work space；
(3) at steel-pipe pile (10) the interim bracket of upper installation (15)；
(4) steel jacket box leading truck is installed: leading truck (16) is fixed by welding in the steel-pipe pile on four angles of drilled pile platform
(10) on；
(5) at the upper assembled orlop steel jacket box of interim bracket (15): with crane, orlop steel jacket box is placed in interim bracket
(15) on, at the upper assembled orlop steel jacket box of interim bracket (15)；
(6) interim bracket is removed and orlop steel jacket box sinks: after good for orlop steel jacket box assembly, with the calabash on hanging beam
(17) sling, removed the most interim bracket (15), assembled good orlop steel jacket box is sunk and makes orlop steel jacket box
End face is higher than the water surface, to facilitate the connection of last layer steel jacket box and this layer of steel jacket box；
(7) assembly of second layer steel jacket box and sinking: a box unit face crane of second layer steel jacket box is placed in
On lower floor's steel jacket box, separately hung with the calabash being similarly installed on hanging beam and prevent from rocking, by second layer steel jacket box with under
After layer steel jacket box connects, with described calabash, is somewhat sling in the described box unit face of described second layer steel jacket box, it is ensured that
Lower floor's steel jacket box calabash no longer stress on described box unit face, then tears open the calabash not stressed on orlop steel jacket box
Fall, by same method, the calabash in other box unit face is dismantled；Then steel jacket box good for assembly is sunk, note during sinking
4 box unit faces are wanted to synchronize；
(8) step (7) is repeated, assembled third layer steel jacket box on second layer steel jacket box, assembly the 4th on third layer steel jacket box
Layer steel jacket box ... until steel jacket box sinks to design attitude；
(9) remove mast-up, extract the steel-pipe pile (10) of drilled pile platform；
(10) if step (8) steel jacket box can not sink down into design attitude by deadweight, then, after completing step (9), mast-up is utilized
Shaped steel (19), shaped steel is laid on steel jacket box (1) top, shaped steel (19) lays reinforced plastic water container (20), then toward in reinforced plastic water container
Water filling is until steel steel jacket box sinks down into design attitude；
(11) progressively the water in steel jacket box is got rid of, along with in steel jacket box, the decline of water level progressively adds in steel jacket box
Support, after reaching requirement, in removing steel jacket box, mud is to designed elevation, adds wood support, then apply bed course bottom steel jacket box
Concrete；
(12) steel jacket box is removed: treats that cushion cap, pier construction are complete and is removed by steel jacket box, removes front angle steel (21) every with steel jacket box
Longitudinal piece in individual box unit face welds several points, connects as interim, on the upper bolt of each angle steel (21) steel wire rope and by
Steel wire rope is numbered, and all steel wire ropes is temporarily fixed at steel jacket box top, places stand-by, in addition to steel jacket box top layer top, by steel bushing
Case other each layers each box unit face disassembles with the connecting bolt in box unit face, checks that confirmation does not has connecting bolt
After, in steel jacket box, water filling reduces differential water pressures inside and outside steel jacket box, the most progressively props up in all along with water level is gradually increasing
Support is all removed, and treats not have inside and outside steel jacket box differential water pressures, starts to remove steel jacket box: whole steel jacket box is removed in four times, tears open every time
Except a box unit face, the casing that the box unit face that must be intended to remove during dismounting is connected with this dismounting box unit face
The interim angle cleat (21) of elemental area crane is sling the most one by one by bolt steel wire rope on angle steel (21) before
Until angle steel (21) completely disengages from steel jacket box, after angle steel (21) departs from steel jacket box, steel on bolt on the suspension ring in this box unit face
Cord, crane hangs this box unit face by steel wire rope, removes other companies in this box unit face and adjacent boxes elemental area
Connecting bolt, releases the connection in this box unit face and adjacent boxes elemental area, makes this box unit face become independent case body unit
Face, is connected without any with other box unit faces, hangs this box unit face on the bank with crane, by same way by steel
Other box unit faces of casing are removed one by one.
One the most according to claim 1 detachably recycles the construction method of bottomless steel jacket box (1), and its feature exists
In: described step (10), toward reinforced plastic water container (20) inner water filling, if still can not sink after filling water, then vibrates reinforced plastic water container with vibration hammer
(20), until steel jacket box (1) sinks down into design attitude.
One the most according to claim 2 detachably recycles the construction method of bottomless steel jacket box (1), and its feature exists
In: the described interim bracket of described step (3) (15) is arranged on the steel-pipe pile (10) of drilled pile platform (18) outermost, holds in the palm temporarily
Frame uses I-steel, is fixed by welding on the steel-pipe pile of outermost；When described step (7) is assembled at the connecting sewing of steel jacket box
Using 8-10mm rubber slab to make collision mat, local at decussation seam uses atomized ash to carry out strengthening closure with cotton-wool.
One the most according to claim 2 detachably recycles the construction method of bottomless steel jacket box (1), and its feature exists
In: described casing is reinforced straight support (2) and is disposed in levels independent case body.
One the most according to claim 3 detachably recycles the construction method of bottomless steel jacket box (1), and its feature exists
In: described casing is reinforced straight support (2) and is positioned in same level with described casing reinforcing diagonal brace (3).
One the most according to claim 4 detachably recycles the construction method of bottomless steel jacket box (1), and its feature exists
In: the angle of straight support (2) and described casing reinforcing diagonal brace (3) reinforced by described casing is 45 °.
One the most according to claim 5 detachably recycles the construction method of bottomless steel jacket box (1), and its feature exists
In: be arranged in the independent case body in bottomless steel jacket box (1) intermediate layer be provided be positioned in same level and combine formation with solely
The straight support (2) of described casing reinforcing that vertical body structure is consistent.
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| CN201510225841.7A CN104805857B (en) | 2015-05-06 | 2015-05-06 | One detachably recycles bottomless steel jacket box and construction method thereof |
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| CN201510225841.7A CN104805857B (en) | 2015-05-06 | 2015-05-06 | One detachably recycles bottomless steel jacket box and construction method thereof |
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| CN104805857A CN104805857A (en) | 2015-07-29 |
| CN104805857B true CN104805857B (en) | 2016-09-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105332382B (en) * | 2015-10-29 | 2017-06-30 | 成都华川公路建设集团有限公司 | Adjacent river foundation ditch builds island cofferdam clay water stop construction method |
| CN105350551A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Flood-preventing cofferdam |
| CN107237266B (en) * | 2017-06-27 | 2023-02-28 | 中铁第四勘察设计院集团有限公司 | Open cut rock anchor combined foundation and reverse operation construction method thereof |
| CN108867672A (en) * | 2018-08-24 | 2018-11-23 | 中国建筑第四工程局有限公司 | A kind of Double-Wall Steel Boxed Cofferdam joining method |
| CN111533034A (en) * | 2020-05-18 | 2020-08-14 | 段中华 | Lifting device of large-scale hoisting equipment and method for disassembling large-scale hoisting equipment |
| CN113863355B (en) * | 2021-10-18 | 2023-02-24 | 中电建十一局工程有限公司 | Waterproof construction method for large-volume bearing platform in water |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4461914B2 (en) * | 2004-06-09 | 2010-05-12 | 株式会社大林組 | Temporary deadline structure and temporary deadline method |
| KR20120111582A (en) * | 2011-04-01 | 2012-10-10 | 서수정 | Prefabricated cofferdam |
| CN102409690A (en) * | 2011-09-21 | 2012-04-11 | 长沙理工大学 | Construction method for synchronously lowering bottomless double-walled steel case cofferdam through multiple continuous jacks |
| CN102936899B (en) * | 2012-09-11 | 2015-03-18 | 武汉二航路桥特种工程有限责任公司 | Method for installing steel cofferdam by the aid of pier supporting frame |
| CN203080537U (en) * | 2013-02-05 | 2013-07-24 | 中铁一局集团有限公司 | High-strength bolt connecting steel cofferdam |
| CN203188223U (en) * | 2013-03-15 | 2013-09-11 | 浙江省交通工程建设集团有限公司 | Bottomless double-wall steel sleeve box for achieving dry operation 100% recycle |
| CN104328792B (en) * | 2013-07-23 | 2016-06-01 | 中交二航局第三工程有限公司 | Bottomless double-wall steel casing splicing structure |
| CN204608812U (en) * | 2015-05-06 | 2015-09-02 | 中铁十六局集团第三工程有限公司 | One detachably recycles bottomless steel jacket box |
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