CN104790416B - Suspension steel cofferdam hermetic seal structure and method - Google Patents
Suspension steel cofferdam hermetic seal structure and method Download PDFInfo
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- CN104790416B CN104790416B CN201510158943.1A CN201510158943A CN104790416B CN 104790416 B CN104790416 B CN 104790416B CN 201510158943 A CN201510158943 A CN 201510158943A CN 104790416 B CN104790416 B CN 104790416B
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Abstract
nullSuspension steel cofferdam hermetic seal structure，Including the pre-buried steel-pipe pile being fixed in deep water、Cushion cap vertically disposed with steel-pipe pile、It is arranged on the steel cofferdam above cushion cap，The centre of cushion cap is fixed with precast pier body，Steel-pipe pile is through the cushion cap outside precast pier body and stretches out the upper surface of cushion cap and fixes with cushion cap，The gap of steel cofferdam and cushion cap is sealed by GINA rubber fastening band，Suspension steel cofferdam hermetic seal structure also includes the pallet being arranged on below cushion cap，Pallet is sleeved on steel-pipe pile and fixes，Rubber water-proof device it is provided with between cushion cap and pallet，The rubber water-proof assembly that steel-pipe pile is arranged it is provided around between pallet and steel-pipe pile，Without artificial lower water operation, steel cofferdam is carried out hermetic seal，And the dismounting of steel cofferdam is simple and convenient，Simplify steel cofferdam underwater sealing and except the operation process torn open，Shorten the duration，Reduce the Financial cost that underwater structure is built.Present invention also offers the hermetic seal method of suspension steel cofferdam.
Description
Technical field
The present invention relates to the underwater sealing structure of steel cofferdam, enclose steel weir hermetic seal structure and suspension steel particularly to suspension
Cofferdam hermetic seal method.
Background technology
Cofferdam refers in hydraulic engineering construction, for building the provisional building enclosure that permanent water conservancy projects is built, its
Effect be prevent water and soil enter underwater structure build position, in order to carry out dry groove construction in cofferdam.Cofferdam is the most main
In waterwork to be used for, in addition to minority cofferdam is as a part for formal underwater structure, major part cofferdam needs after being finished
Remove.Along with development and the continuous accumulation of construction experience of science and technology, the construction of profundal zone (depth of water is more than 10 meters) underwater cofferdam
Technology is evolving, and wherein steel-pipe pile forms a clump of piles in water in deep water, fixed bearing platform and the double-walled without back cover on a clump of piles
Steel cofferdam, then seals the method reaching the hermetic seal within cofferdam to periphery, cofferdam, because having Double-Wall Steel Boxed Cofferdam
Intensity height can bear inside and outside bigger cofferdam that head dress is poor, before the back cover of cofferdam operation simply, the most by the depth of water do not limited and
Advantage that the recycling rate of waterused in cofferdam is high and be widely used.The employing in prior art there being Double-Wall Steel Boxed Cofferdam is connected mutually by many
The monomer of lock is constituted, and each monomer is made up of many double-walled steel plates again, and the scope that cofferdam is gone along with sb. to guard him is the biggest, it is impossible to prop up with supporting
Holding weir wall, each monomer is not because resisting alone the drawing crack toppled, slide and prevent at interlocking, and often cofferdam leaks affects
Construction speed, the shortcoming that steel cofferdam intensity in order to overcome unit interlocking to be formed is not enough, the most mostly using will at pre-fabricated factory
The integral prefabricated shaping of steel cofferdam, then integral hoisting enter water equipped fixing with cushion cap in water after again by hermetic seal, steel cofferdam
Hermetic seal process needs artificial filling under water to block waterproof material and fast hardening concrete, uses mud cleaning machine during loading
With water jetting at high pressure mode back work, its task difficulty is big, profundal zone shale and water quality environment requires height and to the most under water
Operation skill set requirements is high.And cofferdam and cushion cap must be abolished by the large-scale equipment of dialling that draws when needing to remove after being finished in cofferdam
Between xoncrete structure sling from water cofferdam, the large-scale energy dissipating drawing the equipment of dialling is high and construction workload is big, has i.e. spun out steel and has enclosed
The duration that weir is removed, also improve the Financial cost that underwater structure is built.Avoid manually descending water operation to reduce steel cofferdam to seal
The task difficulty of sealing, the construction simplified on the basis of not damaging steel cofferdam overall structure during steel cofferdam is removed from deep water
The Financial cost that journey reduction underwater structure is built is that the Double-Wall Steel Boxed Cofferdam with steel-pipe pile as a clump of piles needs to be solved in building course
Technical problem certainly.
Summary of the invention
The present invention is directed to existing the most manually descend that water task difficulty is big to be required high and use and large-scale draw group equipment Removal steel
During cofferdam, energy dissipating high construction workload delays greatly the duration of steel cofferdam underwater sealing and dismounting, also improves underwater structure
The technical problem of the Financial cost built, it is provided that the hermetic seal structure of suspension steel cofferdam, it is without manually descending water operation to steel
Cofferdam carries out hermetic seal, and the dismounting of steel cofferdam is simple and convenient, simplifies steel cofferdam underwater sealing and except the operation process torn open,
Shorten the duration, reduce the Financial cost that underwater structure is built.Present invention also offers suspension steel cofferdam hermetic seal side
Method.
For reaching above-mentioned purpose, the technical solution used in the present invention is: suspension steel cofferdam hermetic seal structure, including pre-buried
The steel-pipe pile being fixed in deep water and the vertically disposed cushion cap of steel-pipe pile, it is arranged on the steel cofferdam above cushion cap, the centre of cushion cap
Being fixed with precast pier body, steel-pipe pile passes the cushion cap outside precast pier body and the upper surface stretching out cushion cap and consolidates mutually with cushion cap
Fixed, the gap of steel cofferdam and cushion cap is sealed by GINA rubber fastening band, it is characterised in that described suspension steel cofferdam only seals
Water-bound also includes being arranged on the pallet below described cushion cap, and described pallet is sleeved on described steel-pipe pile and fixes,
Between described cushion cap and described pallet, it is provided with rubber water-proof device, is provided with between described pallet and described steel-pipe pile
The rubber water-proof assembly arranged around described steel-pipe pile, described rubber water-proof assembly include being arranged on described steel-pipe pile with
Between described pallet and along described steel-pipe pile length direction distribution water expandable waterstop and ring seal rubber, described
Ring seal rubber is arranged on above described water expandable waterstop, and described tray center has diameter slightly larger than described
The installation through hole of steel-pipe pile diameter, described steel-pipe pile is installed through hole through described and fix with described pallet, institute
The annular groove one for placing described water expandable waterstop is had and for placement on the hole wall installing through hole stated
The annular groove two of ring seal rubber, the axis of annular groove one and the axis of annular groove two all with through hole is installed
Axis overlaps, in described water expandable waterstop is pasted onto described annular groove one and with the outer wall of described steel-pipe pile
Contact, in described ring seal rubber is pasted onto described annular groove two and connect with the outer wall of described steel-pipe pile
Touch, be provided with rubber water-proof device between described cushion cap and described pallet and refer on the pallet described in installing outside through hole
Surface is fixing equipped with little GINA rubber fastening band, described little GINA rubber fastening band be compressed in described cushion cap lower surface with
Between described tray upper surface.
Further, described described ring seal rubber includes ring seal capsule and the high-pressure air pipe being interconnected
Assembly, described high-pressure air pipe assembly extends up to the inside of described steel cofferdam, described annular through described cushion cap
The outer wall of sealing capsule and described steel-pipe pile is close to.
Further, the cross section of described annular groove one is semicircle, rectangle or trapezoidal.
Suspension steel cofferdam hermetic seal method, it is characterised in that use above-described suspension steel cofferdam hermetic seal to tie
Structure, step gathers and is:
(1) complete cushion cap, precast pier body and the making of pallet in precast plant, cushion cap and pallet all precast with
The hard-wired structure of steel-pipe pile, and bridge pier body is fixedly mounted on the centre position of cushion cap, complete steel cofferdam in Zhi Yu factory whole
Body is formed, and the GINA rubber fastening band being used for sealing steel cofferdam and cushion cap gap is installed to the bottom of steel cofferdam；
(2) offer the diameter installation through hole slightly larger than described steel-pipe pile diameter at tray center, through-hole wall is being installed
On offer annular groove one and annular groove two from down to up, the axis of annular groove one and the axis of annular groove two are equal
Overlapping with the axis installing through hole, rubber water-proof resistor includes water expandable waterstop and ring seal rubber, will meet water swollen
Swollen sealing rod is pasted onto in annular groove one, is pasted onto in annular groove two by ring seal rubber；Installing outside through hole
Tray upper surface all fixes little GINA rubber fastening band composition rubber water-proof device；Pallet hanging device is sling and inserts water
In, steel-pipe pile makes pallet be sleeved on steel-pipe pile through installing through hole, and water expandable waterstop and ring seal rubber are all and steel
The tube wall of pile tube contacts, then by all precasting structure hard-wired with steel-pipe pile on pallet, pallet is solid mutually with steel-pipe pile
Fixed；
(3) by centre equipped with precast pier body cushion cap by lifting method put in water, by precasting on cushion cap
Cushion cap is fixed by structure hard-wired with steel-pipe pile with steel-pipe pile, make steel-pipe pile pass the cushion cap outside precast pier body and
Stretching out the upper surface of cushion cap, cushion cap is placed in above pallet, and rubber water-proof device is between cushion cap and pallet；
(4) by the mode of lifting, steel cofferdam is lifted into water, be placed on above cushion cap, by the effect of gravity by steel
GINA rubber bottom cofferdam takes off waterstop and is pressed in the gap between steel cofferdam and cushion cap；
(5) drain the hydrops within steel cofferdam with pumping equipment, inside steel cofferdam, be completely sealed reality sealing, can be
Dry application work is carried out inside steel cofferdam.
Further, ring seal capsule and the high-pressure air pipe that the ring seal rubber in poly-(two) includes being interconnected is walked
Assembly, described high-pressure air pipe assembly extends up to the inside of described steel cofferdam, described annular through described cushion cap
Watertight rubber contacts with the tube wall of steel-pipe pile and refers to be pasted onto in annular groove two, in steel cofferdam ring seal capsule
Portion utilizes pressurized equipment to pass through high-pressure air pipe assembly to ring seal capsule inflating pressure, makes ring seal capsule swollen swollen, annular
Sealing capsule is adjacent to the tube wall of steel-pipe pile.
Further, the cushion cap walked in poly-(three) is placed in above pallet, rubber water-proof device be in cushion cap and pallet it
Between refer to be fixedly mounted on the little GINA rubber fastening band of tray upper surface and be compressed in described cushion cap lower surface with described
Between tray upper surface.
The invention has the beneficial effects as follows: pallet is sleeved on steel-pipe pile and is placed in below cushion cap by the present invention, pallet and steel
The rubber water-proof assembly that steel-pipe pile is arranged it is provided around, with rubber water-proof assembly by close between pallet and steel-pipe pile between pile tube
Envelope；Between cushion cap and pallet, it is provided with rubber water-proof device, will seal between cushion cap and pallet with rubber water-proof device, and use
GINA rubber fastening band seals the gap between steel cofferdam and cushion cap, and these triple closure are all that the principle using rubber flexible contact is prevented
Sealing divides and enters into inside steel cofferdam, and wherein GINA rubber fastening band is fixedly mounted on steel cofferdam before water under steel cofferdam, rubber
Glue sealing assembly and rubber water-proof device are arranged on pallet before water under pallet, without artificial underwater performance after water under steel cofferdam
Steel cofferdam is carried out hermetic seal, it is to avoid artificial carry out blocking operation the most under water and simplify the operation of steel cofferdam underwater sealing
Journey, GINA rubber fastening band is close on cushion cap by steel cofferdam by the effect of gravity, steel cofferdam do not fix with cushion cap but
Being suspended in deep water, steel cofferdam does not fixes with cushion cap, lift steel cofferdam water outlet time, it is not necessary to use large-scale draw dial equipment to steel
Cofferdam carries out drawing dials, and only common hanging device need to be used to lift steel cofferdam from water, and the dismounting of steel cofferdam is simple and convenient
Duration is shorter, reduces the Financial cost that underwater structure is built.The suspension steel cofferdam hermetic seal method of the present invention, easily grasps
Making, it is not necessary to artificial lower water seal caulking joint gap, steel cofferdam is suspended in water and is placed in above cushion cap according to making gravity, i.e. shortens steel cofferdam water
The duration of lower seal and dismounting also reduces the Financial cost that underwater structure is built.The suspension steel cofferdam hermetic seal of the present invention
In method, cushion cap, the honest body of prefabricated bridge, pallet and steel cofferdam are all at the prefabricated formation of precast plant, the GINA rubber water-proof of hermetic seal
Band, rubber water-proof assembly and rubber water-proof device all fixedly mount before water under equipment, it is not necessary to steel cofferdam is carried out by artificial lower water
Hermetic seal, substantially reduces the task difficulty of steel cofferdam underwater sealing sealing, it is easier to the construction process of works under water
In be employed and promote.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the enlarged drawing of Fig. 1 dotted portion.
Fig. 3 is the structural representation of pallet in embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the invention are elaborated.
As shown in Figure 1 to Figure 3, suspension steel cofferdam hermetic seal structure, the steel-pipe pile 1 being fixed in deep water including pre-buried,
Cushion cap 2 vertically disposed with steel-pipe pile 1, being arranged on cushion cap 2 steel cofferdam 3 above, the centre of cushion cap 2 is fixed with precast pier
Body, steel-pipe pile 1 is through the cushion cap 2 outside precast pier body and stretches out the upper surface of cushion cap 2 and fixes with cushion cap 2, steel cofferdam 3
Being sealed by GINA rubber fastening band with the gap of cushion cap 2, described suspension steel cofferdam hermetic seal structure also includes being arranged on
Described cushion cap 2 pallet 4 below, described pallet 4 is sleeved on described steel-pipe pile 1 and fixes, described cushion cap 2 with
It is provided with rubber water-proof device 5 between described pallet 4, is provided around described between described pallet 4 and described steel-pipe pile 1
The rubber water-proof assembly 6 that steel-pipe pile 1 is arranged.Described rubber water-proof assembly 6 includes being arranged on described steel-pipe pile 5 with described
Between pallet 4 and along described steel-pipe pile 1 length direction distribution water expandable waterstop 61 and ring seal rubber 62, described
Ring seal rubber 62 is arranged on above described water expandable waterstop 61.It is slightly larger that described pallet 4 center has diameter
In the installation through hole 41 of described steel-pipe pile 1 diameter, described steel-pipe pile 1 through described install through hole 41 and with described torr
Dish 4 fixes, and the described hole wall installing through hole 41 has the annular for placing described water expandable waterstop 61 recessed
Groove 1 and the annular groove 2 412 of the ring seal rubber 62 for placing, the axis of annular groove 1 and annular
The axis of groove 2 412 all overlaps with the axis installing through hole 41, and described water expandable waterstop 61 is pasted onto described
Annular groove 1 in and contact with the outer wall of described steel-pipe pile 1, the cross section of described annular groove 1 is
Semicircle, rectangle or trapezoidal.Described ring seal rubber 62 includes ring seal capsule 621 and the high-pressure air pipe being interconnected
Assembly 622, described high-pressure air pipe assembly 622 extends up to the inside of described steel cofferdam 3, institute through described cushion cap 2
The outer wall of the ring seal capsule 621 stated and described steel-pipe pile 1 is close to.It is provided with between described cushion cap 2 and described pallet 4
Rubber water-proof device 5 refers to that pallet 4 upper surface described in outside installation through hole 41 is fixing equipped with little GINA rubber fastening band
51, described little GINA rubber fastening band 51 is compressed between described cushion cap 2 lower surface and described pallet 4 upper surface.
Being contained on steel-pipe pile 1 by pallet set 4 is placed in below cushion cap 2, is provided around steel pipe between pallet 4 and steel-pipe pile 1
The ring seal capsule 621 of stake 1 setting and water expandable waterstop 61, inflated ring seal capsule by high-pressure air pipe assembly
Pressurization makes ring seal capsule 621 be close on the outer wall of steel-pipe pile 1, by ring seal capsule 621 and water-swellable sealing
Bar 61 will seal between steel-pipe pile 1 and pallet 4, fixing equipped with little GINA rubber fastening band 51, little GINA rubber at pallet 4 upper surface
Glue waterstop 51 is compressed between cushion cap 2 lower surface and pallet 4 upper surface, with little GINA rubber fastening band 51 by cushion cap and torr
Seal between dish, and seal the gap between steel cofferdam 2 and cushion cap 2, the steel cofferdam 3 effect by gravity with GINA rubber fastening band
Being close on cushion cap 2 by GINA rubber fastening band, steel cofferdam 3 does not fixes with cushion cap and is suspended in deep water, the present invention's
Suspension steel cofferdam hermetic seal structure is all used the principle of rubber flexible contact prevent moisture from entering into inside steel cofferdam,
GINA rubber fastening band is fixedly mounted on steel cofferdam 3 before 3 times water of steel cofferdam, ring seal capsule 621, water-swellable sealing
Bar 61 and little GINA rubber fastening band 51 are all arranged on pallet 4 before 4 times water of pallet, without manually after 3 times water of steel cofferdam
Underwater performance blocks sealing to steel cofferdam 3, it is to avoid artificial carry out blocking operation the most under water and simplifies the work of steel cofferdam 3 underwater sealing
Industry process, steel cofferdam 3 does not fixes with cushion cap, lift steel cofferdam 3 water outlet time, it is not necessary to use large-scale draw dial equipment to steel cofferdam
3 carry out drawing and dial, and only common hanging device need to be used to lift steel cofferdam 3 from water, the simple and convenient work of dismounting of steel cofferdam 3
Phase is shorter, reduces the Financial cost that underwater structure is built.
Suspension steel cofferdam hermetic seal method, uses above-described suspension steel cofferdam hermetic seal structure, and step is gathered and is:
(1) cushion cap 2, precast pier body and the making of pallet 4 are completed in precast plant, the most prefabricated on cushion cap 2 and pallet 4
Go out structure hard-wired with steel-pipe pile 1, and bridge pier body is fixedly mounted on the centre position of cushion cap 2, complete steel in Zhi Yu factory
Cofferdam 3 is integrally formed, and the GINA rubber fastening band being used for sealing steel cofferdam 3 and cushion cap 2 gap is installed to the end of steel cofferdam 3
Portion；
(2) offer the diameter installation through hole 41 slightly larger than described steel-pipe pile 1 diameter at pallet 4 center, through hole is being installed
Tray upper surface outside 41 is all fixed little GINA rubber fastening band 51 and is formed rubber water-proof device 5, is installing through hole 41 inwall
On offer annular groove 1 and annular groove 2 412 from down to up, the axis of annular groove 1 and annular groove two
The axis of 412 all overlaps with the axis installing through hole 41, and rubber water-proof resistor 6 includes water expandable waterstop 61 and annular
Watertight rubber 62, is pasted onto water expandable waterstop 61 in annular groove 1, and ring seal rubber 62 includes being interconnected
Ring seal capsule 621 and high-pressure air pipe assembly 622, described high-pressure air pipe assembly 622 upwards prolongs through described cushion cap 2
Reach the inside of described steel cofferdam 3, ring seal capsule 621 is pasted onto in annular groove 2 412, in steel cofferdam 3
Portion utilizes pressurized equipment to pass through high-pressure air pipe assembly to ring seal capsule 621 inflating pressure, makes ring seal capsule 621 swollen
Swollen, pallet 4 to be sling with hanging device and inserts in water, steel-pipe pile 1 makes pallet 4 be sleeved on steel-pipe pile 1 through installing through hole 41,
Water expandable waterstop 61 contacts with the tube wall of steel-pipe pile 1, and ring seal capsule 621 is adjacent to the tube wall of steel-pipe pile 1, then leads to
Cross and all precast structure hard-wired with steel-pipe pile 1 on pallet 4 pallet 4 is fixed with steel-pipe pile 1；
(3) by centre equipped with precast pier body cushion cap 2 by lifting method put in water, by prefabricated on cushion cap 2
Go out structure hard-wired with steel-pipe pile 1 to be fixed with steel-pipe pile 1 by cushion cap 2, make steel-pipe pile 1 pass outside precast pier body
Cushion cap 2 and stretch out the upper surface of cushion cap 2, the little GINA rubber fastening band 51 being fixedly mounted on pallet 4 upper surface is compressed in institute
Between cushion cap 2 lower surface and described pallet 4 upper surface stated；
(4) by the mode of lifting, steel cofferdam 2 is lifted into water, be placed on above cushion cap 2, will by the effect of gravity
GINA rubber bottom steel cofferdam 3 takes off waterstop and is pressed in the gap between steel cofferdam 3 and cushion cap 2；
(5) drain the hydrops within steel cofferdam 3 with pumping equipment, inside steel cofferdam, be completely sealed reality sealing, can be
Steel cofferdam 3 is internal carries out dry application work.
Above-mentioned suspension steel cofferdam hermetic seal method, easily operates, it is not necessary to artificial lower water seal caulking joint gap, steel cofferdam 3 is suspended in
Being placed in above cushion cap 2 according to making gravity in water, the duration i.e. shortening steel cofferdam 3 underwater sealing and dismounting also reduces submerged structure
The Financial cost that thing is built.Wherein cushion cap 2, the honest body of prefabricated bridge, pallet 4 and steel cofferdam 3 are all in the prefabricated formation of precast plant, only seal
The GINA rubber fastening band of water, rubber water-proof assembly 6 and rubber water-proof device 5 all fixedly mount before water under equipment, it is not necessary to
Artificial lower water carries out hermetic seal to steel cofferdam, substantially reduces the task difficulty of steel cofferdam underwater sealing sealing, makes steel cofferdam
Underwater sealing sealing difficulty reduce, it is easier under water the construction process of works be employed and promote.
Above in association with accompanying drawing, the technical scheme of embodiments of the invention is completely described, it should be noted that described
Embodiment be only a part of embodiment of the present invention.Based on the embodiment in the present invention, those of ordinary skill in the art exist
The every other embodiment obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
Claims (3)
1. the construction method of suspension steel cofferdam hermetic seal structure, described suspension steel cofferdam hermetic seal structure includes pre-buried solid
The steel-pipe pile (1) and steel-pipe pile (1) the vertically disposed cushion cap (2) that are scheduled in deep water, it is arranged on cushion cap (2) steel cofferdam above
(3), the centre of cushion cap (2) is fixed with precast pier body, and steel-pipe pile (1) is through the cushion cap (2) outside precast pier body and stretches out
The upper surface of cushion cap (2) also fixes with cushion cap (2), and the gap of steel cofferdam (3) and cushion cap (2) is close by GINA rubber fastening band
Envelope, suspension steel cofferdam hermetic seal structure also includes being arranged on cushion cap (2) pallet (4) below, and pallet (4) is sleeved on steel-pipe pile
(1) go up and fix, between cushion cap (2) and described pallet (4), being provided with rubber water-proof device (5), pallet (4) and steel-pipe pile
(1) the rubber water-proof assembly (6) that steel-pipe pile (1) is arranged it is provided around between, it is characterised in that the step of described construction method
For:
(1) cushion cap (2), precast pier body and the making of pallet (4) are completed in precast plant, upper all at cushion cap (2) and pallet (4)
Precast and steel-pipe pile (1) hard-wired structure, and bridge pier body is fixedly mounted on the centre position of cushion cap (2), prefabricated
Factory completes the making of steel cofferdam (3), and the GINA rubber fastening band that will be used for sealing steel cofferdam (3) and cushion cap (2) gap is installed
Bottom to steel cofferdam (3)；
(2) steel-pipe pile is fixed in deep water, rubber water-proof device (5) and rubber water-proof assembly (6) are separately fixed at pallet
(4), on, the steel-pipe pile (1) that pallet (4) lifting lower water jacket is contained in deep water is gone up and is fixed making rubber water-proof assembly (6) be arranged on
Between steel-pipe pile (1) and pallet (4), this step (two) particularly as follows:
Offer the diameter installation through hole (41) slightly larger than described steel-pipe pile (1) diameter at pallet (4) center, through hole is being installed
(41) annular groove one (411) and annular groove two (412), the axis of annular groove one (411) are offered on inwall from down to up
The axis of line and annular groove two (412) all overlaps with the axis installing through hole (41), and rubber water-proof assembly (6) includes meeting
Water expansion sealing strip (61) and ring seal rubber (62), be pasted onto annular groove one (411) by water expandable waterstop (61)
In, ring seal rubber (62) is pasted onto in annular groove two (412)；Equal at the tray upper surface installing through hole (41) outside
Fixing little GINA rubber fastening band (51) composition rubber water-proof device (5)；Being sling with hanging device by pallet (4) inserts in water,
Steel-pipe pile (1) makes pallet (4) be sleeved on steel-pipe pile (1) through installing through hole (41), water expandable waterstop (61) and annular
Watertight rubber (62) all tube walls with steel-pipe pile (1) contact, then fix with steel-pipe pile (1) by all precasting on pallet (4)
Pallet (4) is fixed by the structure installed with steel-pipe pile (1)；
(3) centre is put in water equipped with the cushion cap (2) of precast pier body by the method for lifting, upper the most prefabricated by cushion cap (2)
Go out and with steel-pipe pile (1) hard-wired structure, cushion cap (2) is fixed with steel-pipe pile (1), make steel-pipe pile (1) through precast pier
Cushion cap (2) outside body and stretch out the upper surface of cushion cap (2), cushion cap (2) is placed in above pallet (4), rubber water-proof device (5)
It is between cushion cap (2) and pallet (4)；
(4) by the mode of lifting, steel cofferdam (3) is lifted into water, be placed on above cushion cap (2), will by the effect of gravity
The GINA rubber fastening band of steel cofferdam (3) bottom is pressed in the gap between steel cofferdam (3) and cushion cap (2)；
(5) drain, with pumping equipment, the hydrops that steel cofferdam (3) is internal, be completely sealed inside steel cofferdam and realize sealing, can be at steel
Cofferdam (3) is internal carries out dry application work.
The construction method of suspension steel cofferdam hermetic seal structure the most according to claim 1, it is characterised in that step (two)
In ring seal rubber (62) include the ring seal capsule (621) and the high-pressure air pipe assembly (622) that are interconnected, described
High-pressure air pipe assembly (622) extends up to the inside of described steel cofferdam (3), described annular through described cushion cap (2)
Watertight rubber (62) contacts with the tube wall of steel-pipe pile (1) and refers to ring seal capsule (621) is pasted onto annular groove two
(412), in, ring seal capsule (621) is inflated by the inner utilization pressurized equipment at steel cofferdam (3) by high-pressure air pipe assembly
Pressurization, makes ring seal capsule (621) expand, and ring seal capsule (621) is adjacent to the tube wall of steel-pipe pile (1).
The construction method of suspension steel cofferdam hermetic seal structure the most according to claim 2, it is characterised in that step (three)
In cushion cap (2) be placed in above pallet (4), rubber water-proof device (5) is between cushion cap (2) and pallet (4) and refers to fix
The little GINA rubber fastening band (51) being arranged on pallet (4) upper surface is compressed in described cushion cap (2) lower surface with described
Between pallet (4) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158943.1A CN104790416B (en) | 2015-04-07 | 2015-04-07 | Suspension steel cofferdam hermetic seal structure and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158943.1A CN104790416B (en) | 2015-04-07 | 2015-04-07 | Suspension steel cofferdam hermetic seal structure and method |
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| Publication Number | Publication Date |
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| CN104790416A CN104790416A (en) | 2015-07-22 |
| CN104790416B true CN104790416B (en) | 2016-12-07 |
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| CN109187103B (en) * | 2018-11-20 | 2024-05-17 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Layered water stop sampling device |
| CN113026784B (en) * | 2021-04-01 | 2023-11-21 | 南京中铁桥机工程有限公司 | Plugging device for steel suspended box cofferdam and use method thereof |
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| KR100651231B1 (en) * | 2006-09-08 | 2006-11-30 | 주식회사 유일종합기술단 | Structure of pc concrete pile |
| CN203684241U (en) * | 2013-12-16 | 2014-07-02 | 株洲时代新材料科技股份有限公司 | Waterstop for boxed cofferdam and sealing structure of boxed cofferdam and concrete pile cap |
| CN104032770B (en) * | 2014-05-30 | 2015-11-11 | 广东省长大公路工程有限公司 | The water sealing device that prefabricated cushion cap and bored pile are connected under water |
| CN104047294B (en) * | 2014-07-02 | 2016-04-13 | 广东省长大公路工程有限公司 | A kind of monolithic for prefabricated pier wet method installation is from gravity water-stopping steel casing |
| CN204570712U (en) * | 2015-04-07 | 2015-08-19 | 株洲时代新材料科技股份有限公司 | Suspension steel cofferdam hermetic seal structure |
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2015
- 2015-04-07 CN CN201510158943.1A patent/CN104790416B/en active Active
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| CN104790416A (en) | 2015-07-22 |
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