CN103015441A - Floating water stop device for bridge bearing platform or construction platform - Google Patents
Floating water stop device for bridge bearing platform or construction platform Download PDFInfo
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- CN103015441A CN103015441A CN2012105187405A CN201210518740A CN103015441A CN 103015441 A CN103015441 A CN 103015441A CN 2012105187405 A CN2012105187405 A CN 2012105187405A CN 201210518740 A CN201210518740 A CN 201210518740A CN 103015441 A CN103015441 A CN 103015441A
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Abstract
The invention relates to a floating water stop device for a bridge bearing platform or a construction platform. A conical guide pile cap is previously sheathed on a steel pipe pile of a pile base, a fixing piece of a floating sealing device is prefabricated on the bearing platform, the floating sealing device is prefabricated on the bearing platform by the fixing piece of the floating sealing device, the floating sealing device consists of an axial inflating type sealing ring, a floating sealing ring and a radial inflating type sealing ring, the upper part and the lower part of the floating sealing ring are respectively welded with an upper circular U-shaped concave groove and a lower circular U-shaped concave groove, the floating sealing ring is arranged on the fixing piece of the floating sealing device, and the axial inflating type sealing ring and the radial inflating type sealing ring are respectively arranged in the upper circular U-shaped concave groove and the lower circular U-shaped concave groove of the floating sealing ring. The floating water stop device has the advantages that the structure is simple; the installation is convenient; the water stop effect is good; and the axial offset can be well compensated when the bearing platform and the steel pipe pile are installed.
Description
Technical field
The present invention relates to a kind of over-water construction platform (job platform), especially a kind of bridge prefabrication cushion cap sinking of bridge spanning the sea that is applied to is in the hermetic seal device of pile foundation operation platform.
Background technology
The making of existing bridge bearing platform mainly contains following dual mode: one, in-situ casting; Two, prefabrication.Wherein, prefabricate cushion cap transports on-the-spot sinking to when pile foundation connects, and mostly adopts short construction period, the dried back cover form of the more manageable concrete of workmanship to carry out.During dried back cover concrete, the waterstop sealing in foundation pile and prefabricated cushion cap jack gap in succession is " key technology ".Conventional method is to preset empty pocket formula inflation (medium) rubber seal at cushion cap stake position jack fluting to realize waterproof sealing, is exactly rubber ring expansion after the inflation (medium), and is closely attached on cushion cap and the steel pipe pile lining.Its method has following shortcoming: the excesssive gap of reserving between A. cushion cap and the steel pipe pile, and it is larger that the rubber seal ring cross-section need be done, when cushion cap suit steel pipe pile, the sealing ring disengaging that easily walks; When installing with cushion cap, may there be desaxe in skew when B. construct in steel pipe pile stake position, will cause like this sealing ring to be offset to a direction, gap Xiao Chu, sealing ring are subject to very large extruding, may cause sealing ring to squeeze cutting or wear and tear, and contact is inhomogeneous after the sealing ring inflation (medium); The gap general goal easily goes out groove after the sealing ring inflation (medium) and comes off, and can not well realize water stopping function; C. the gap of reserving between cushion cap and the steel pipe pile is little, and foundation pile stake position construction hour offset amount is large, can not dock smoothly with the cushion cap preformed hole, and stake position construction precision requires too high, and construction cost is large, and sometimes is difficult to realize.
Therefore, how to provide a kind of and can realize that the cushion cap stop safe water is reliable and be convenient to cushion cap and the cushion cap antipriming of steel pipe pile suit is the technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
The present invention is the waterstop sealing technical problem that will solve foundation pile and prefabricated cushion cap jack gap in succession the time, and a kind of unsteady antipriming for bridge bearing platform or operation platform is provided, this apparatus structure is simple, easy for installation, stagnant water effect is good and can well compensate cushion cap and the side-play amount in steel pipe pile axle center when installing.
To achieve the above object, the present invention adopts following technical scheme:
A kind of unsteady antipriming for bridge bearing platform or operation platform, comprise floating seal, the taper guiding pile cap, the floating seal fixture, be characterized in: the taper guiding pile cap is enclosed within on the pile foundation steel pipe pile in advance, the floating seal fixture is in advance on cushion cap, floating seal passes through the floating seal fixture in advance on cushion cap, floating seal is by axial inflation seal ring, fluctuate hermetical ring and radially inflation seal ring form, fluctuate hermetical ring is welded with respectively up and down, lower annular U-shaped groove, and be placed on the floating seal fixture fluctuate hermetical ring upper, place respectively axial inflation seal ring and inflation seal ring radially in the lower annular U-shaped groove.
Taper guiding pile cap the first half is a conical pipe, its cone angle is 20 °, the latter half is a cylindricality pipe, cylindricality pipe external diameter is identical with steel pipe pile outer wall aperture, and weld together with the first half conical pipe, uniform welding has 6-8 wedge shape iron plates in the cylindricality pipe, and upper, middle and lower is welded with respectively middle support annulus, wedge shape iron plate and lower support annulus in the taper guiding pile cap.
The floating seal fixture has 6-8, and uniform being centered around on the same circumference.
Fluctuate hermetical ring is annulus, annular aperture is than the large 20mm of steel pipe pile diameter, described annular U-shaped groove is positioned near fluctuate hermetical ring upper outer edge, and notch up, described lower annular U-shaped groove is positioned near inside edge, fluctuate hermetical ring below, and the notch direction is pointed to the fluctuate hermetical ring center of circle.
After cushion cap is sleeved on steel pipe pile, axial inflation seal ring and radially be full of gas in the inflation seal ring, and be connected with the steel pipe pile floating seal.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) at steel pipe pile top cover cone angle to be arranged be 20 ° taper guiding pile cap by adopting in the present invention, can make cushion cap more easily put steel pipe pile.
(2) the present invention adopts " floating seal " to be preset at by " fixture " and forms a whole set of " antipriming floats " on the cushion cap, can not only become simple so that " antipriming floats " installs at cushion cap, and realize pneumatic rubber seal circle fixed constraint, can be so that the pneumatic rubber seal circle be mobile with joint ring, formation is to " floating seal " of cushion cap and steel pipe pile, and the stake position preformed hole and the on-the-spot steel pipe pile construction displacement that compensate prefabricated cushion cap make the shaft core position deviation that exists when installing.
(3) the radial and axial sealing ring of device employing of the present invention can be mobile with joint ring, like this when there is desaxe in cushion cap and steel pipe pile suit, can keep and steel pipe pile axle center centering problem, avoid producing steel pipe pile amesiality, extruding, shearing sealing circle and damaging, the large side in gap causes the sealing ring inflation and routs up and take off groove and the squeezed situations such as destruction of cutting, and can be so that sealing device contacts more even with cushion cap with steel pipe pile, stagnant water effect is better, increasing reduces the stake position construction precision requirement of on-the-spot foundation pile under the hard situation to the fault-tolerant amount of steel pipe pile site operation offset deviation.
Because above characteristics, the bridge bearing platform of the present invention in over strait or river course built with the field such as offshore construction operating platform has very strong practical value.
Description of drawings
Fig. 1 is the cushion cap front view that is shaped with in advance floating seal and fixture among the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the front view of cushion cap when initially being inserted in steel pipe pile taper pile cover;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is the partial enlarged drawing of A among Fig. 1;
Fig. 6 is the front view of cushion cap and steel pipe pile suit after in position;
Fig. 7 is the local structure for amplifying schematic diagram of B among Fig. 6;
Fig. 8 is cushion cap and the steel pipe pile front view when having desirable gap;
Fig. 9 is the top view of Fig. 8;
Figure 10 is the partial enlarged drawing of D among Fig. 8;
Figure 11 is cushion cap and the steel pipe pile front view when having the least favorable gap;
Figure 12 is the top view of Figure 11;
Figure 13 is the partial enlarged drawing of E among Figure 11;
Figure 14 is the front view of fluctuate hermetical ring;
Figure 15 is the top view of Figure 14;
Figure 16 is the partial enlarged drawing of F among Figure 14;
Figure 17 is the front view of taper guiding pile cap;
Figure 18 is the top view of Figure 17;
Figure 19 is the upward view of Figure 17;
Figure 20 is auxiliary water-stopping sealing device structural representation.
The specific embodiment
Below will be described in further detail a kind of unsteady antipriming that is applied to bridge bearing platform or operation platform of the present invention.For purpose of the present invention, feature are become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.It should be noted that, accompanying drawing all adopts the form of simplification and all uses non-accurately ratio, only in order to convenient, the purpose of the aid illustration embodiment of the invention lucidly.
Embodiment:
A kind of unsteady antipriming for bridge bearing platform or operation platform, structure sees also Fig. 1 to Fig. 5, the hermetic seal effect when building with the offshore construction operating platform for the bridge bearing platform in over strait or river course.This cushion cap antipriming that floats: comprise floating seal, taper guiding pile cap 1, floating seal fixture 2, taper guiding pile cap 1 is enclosed within on the pile foundation steel pipe pile 21 in advance, floating seal fixture 2 is in advance on cushion cap 20, floating seal passes through floating seal fixture 2 in advance on cushion cap 20, floating seal is by axial inflation seal ring 3, fluctuate hermetical ring 4 and radially inflation seal ring 5 form, fluctuate hermetical ring 4 is welded with respectively up and down, lower annular U-shaped groove 6,9, and be placed on the floating seal fixture 2, axially inflation seal ring 3 and radially inflation seal ring 5 be placed on respectively the upper of fluctuate hermetical ring 4, in the lower annular U-shaped groove 6,9.
Concrete, please continue to consult Fig. 8,9 and Figure 11,12, this cushion cap floats in the antipriming, total 6-8 floating seal fixture 2, described 6-8 floating seal fixture 2 be uniform to be centered around on the cushion cap 20 on the same circumference.
Concrete, please continue to consult Fig. 1-Figure 13, this cushion cap floats in the antipriming, axial inflation seal ring 3, fluctuate hermetical ring 4 and common floating seals that form of inflation seal ring 5 radially, and floating seal can be mobile at fixture 2, fluctuate hermetical ring 4 is circular ring structures, annular aperture fills perhaps deviate according to the construction technology of pile foundation steel pipe pile 21 and decides that (general control is in φ stake ± 10mm), be that annular distance is made the aperture than the large 20mm of steel pipe pile 21 diameters, fluctuate hermetical ring is welded with respectively up and down, lower annular U-shaped groove 6,9, upper annular U-shaped groove 6 is positioned near fluctuate hermetical ring 4 upper outer edges, and notch up, and lower annular U-shaped groove 9 is positioned near inside edge, fluctuate hermetical ring 4 below, and the notch direction is pointed to fluctuate hermetical ring 4 centers of circle.
Concrete, please continue to consult Figure 14,15, Figure 16, this cushion cap floats in the antipriming, also comprise axial inflation seal ring air-filled pore 7 and inflation seal ring air-filled pore 8 radially, axially inflation seal ring air-filled pore 7 is positioned at annular U-shaped groove 6 inboards, and radially inflation seal ring air-filled pore 8 is positioned at lower annular U-shaped groove 9 upsides, and consists of a through hole with fluctuate hermetical ring 4.
Concrete, please continue to consult Fig. 1-Figure 16, this cushion cap floats in the antipriming, also comprise axial inflation seal ring 3 and inflation seal ring 5 radially, axially inflation seal ring 3 is positioned in the upper annular U-shaped groove 6 of fluctuate hermetical ring 4, and do not inflate when initial, treat that cushion cap is sleeved on the steel pipe pile 21, be full of gas by axial inflation seal ring air-filled pore 7 behind the installation in position, radially inflation seal ring 5 is positioned in the lower annular U-shaped groove 9 of fluctuate hermetical ring 4, and do not inflate when initial, treat that cushion cap 20 is sleeved on the steel pipe pile 21, be full of gas by inflation seal ring air-filled pore 8 radially behind the installation in position.
Concrete, please continue to consult Fig. 1-Fig. 5, Fig. 8-Figure 12, Figure 17-Figure 19, this cushion cap floats in the antipriming, also comprise taper guiding pile cap 1, taper guiding pile cap 1 the first half is a conical pipe 11, cone angle is 20 ° (being that canalis spinalis wall and tubular axis line gradient are 10 °), the latter half is a cylindricality pipe 12, pile cover cylindricality pipe 12 external diameters are identical with steel pipe pile 21 outer wall apertures and weld together with the first half conical pipe 11, pile cover cylindricality pipe 12 interior uniform weldings have 6-8 wedge shape iron plates 14, and taper guiding pile cap 1 interior upper, middle and lower is welded with respectively middle support annulus 13, wedge shape iron plate 14 and lower support annulus 15.
Concrete, please continue to consult Fig. 1-Figure 16, this cushion cap float the fluctuate hermetical ring 4 described in the antipriming and axially, radially inflation seal ring 3,5 floating seals that form can be mobile at floating seal fixture 2, carries out the unsteady migration in gap in the time of can realizing cushion cap 20 and steel pipe pile 21 suit owing to the desaxe that may exist.
Before cushion cap 20 cover steel pipe piles 21, with taper pile cover 1 suit pile foundation steel pipe pile 21 tops, and will " radially " with " axially " sealing ring in the situation that do not inflate respectively in the groove that is placed on " floating seal " assembly, again that " floating seal " component placement is fixing in cushion cap 20 usefulness " fixture ", form a whole set of " antipriming floats ", after the lifting of cushion cap transportation by driving puts in place, cushion cap 20 is reserved hole, stake position, with 21 contrapositions of pile foundation steel pipe pile, slowly transfer cushion cap, each unsteady antipriming is inserted on the steel pipe pile taper pile cover 1 (sees Fig. 3,4,5), continue sinking cushion cap 20 to design elevation, in positionly (see Fig. 6,7).Then by the loading line that presets to " inflating rubber radially with axial sealing ring " inflation, under the gas pressure, sealing ring can expand with cushion cap and steel pipe pile respectively and be close to, and the gap between " floating seal " and cushion cap 20 and the steel pipe pile 21 is sealed, and realizes water stopping function.Because sealing device floats; transportable at cushion cap " fixture "; even there is desaxe when therefore cushion cap 20 and steel pipe pile 21 are set with; unsteady antipriming can be realized migration well; so not only can protect the gas-flow closure circle because the desaxe of cushion cap 20 and steel pipe pile 21 when installing may sealing ring when causing the little side in gap to be squeezed be squeezed and cut or wear and tear; and the large side in gap; the phenomenon of groove appears taking off in sealing ring; and can make to contact evenly between sealing ring and steel pipe pile and the cushion cap, stagnant water effect is better.In addition, this device can make " floating seal " automatic aligning, so that the installation of the sealing device that cushion cap presets and steel pipe pile becomes simple owing to adopting tapered pile cap sleeve 1 on steel pipe pile 21 tops.
A kind of four-stage of unsteady antipriming in cushion cap suit steel pipe pile process that is applied to bridge bearing platform or operation platform of the present invention.
Stage one, see also Fig. 1,2, Fig. 8,9, before cushion cap 20 cover steel pipe piles 21, with taper guiding pile cap 1 suit pile foundation steel pipe pile 21 tops, and will be axially with radial direction seal ring in the situation that do not inflate respectively in the up and down U-shaped groove that is placed on " floating seal " assembly, use " fixture " to fix at cushion cap " floating seal " component placement again.
Stage two sees also Fig. 3, and 4, Fig. 5, after the lifting of cushion cap 20 transportation by drivings puts in place, cushion cap 10 is reserved holes, stake position, with 21 contrapositions of pile foundation steel pipe, slowly transfer cushion cap, each floating seal is inserted on the steel pipe pile taper guiding pile cap 1.
Stage three sees also Fig. 6, Fig. 7, continues sinking cushion cap 20 to design elevation, and is in position.Then by the loading line that presets to " inflating rubber axially and radial direction seal ring " inflation, under the gas pressure, sealing ring can expand with cushion cap 20 and steel pipe pile 21 respectively and be close to, and the gap between filling " floating seal " and cushion cap 20 and the steel pipe pile 21 seals, and realizes water stopping function.
Stage four, take out the seawater of leaving over before the sealing in the cushion cap, if sealing effectiveness is undesirable, still on a small quantity infiltration, see also Figure 20, by water stop spacer 17 and expansion bolt 18 waterstop sealing ring 16 is installed at cushion cap 20 inwalls, and by injected hole slip casting 19, fill the gap between steel pipe pile 21 walls and the cushion cap 20, realize water stopping function.
The needs that a kind of unsteady antipriming that is applied to bridge bearing platform or operation platform of the present invention may run into are realized three kinds of situations of water stopping function.
Situation one, see also Fig. 1-Figure 10 and in conjunction with Figure 14-Figure 19, Fig. 8 wherein, the 9th, the schematic diagram when having desirable gap for cushion cap among the present invention 20 and steel pipe pile 21, under this kind situation, cushion cap is reserved stake position axially bored line and steel pipe pile dead in line, and the gap that cushion cap is reserved between stake hole, position and the steel pipe pile is even, and is 60cm; In such cases, fluctuate hermetical ring 4 center hole axis are also reserved stake position axially bored line and steel pipe pile dead in line with cushion cap, fluctuate hermetical ring 4 is not offset on floating seal fixture 2, and fluctuate hermetical ring 4 equates to be 70cm with floating seal fixture 2 spacings, after cushion cap and steel pipe pile suit is in place, to axially, radially inflation seal ring 3,5 is inflated and can be realized good water stopping function.
Situation two, see also Fig. 1-Fig. 7 and in conjunction with Figure 11-Figure 19, Figure 11 wherein, 12 is the schematic diagram when cushion cap 20 has the least favorable gap with steel pipe pile 21 among the present invention, and under this kind situation, cushion cap 20 is reserved stake position axially bored lines and do not overlapped with steel pipe pile 21 axis, having skew and side-play amount is maximum a kind of situation, the gap that cushion cap 20 is reserved between stake holes, position and the steel pipe pile 21 is inhomogeneous, and a side is least limit gap 0, and opposite side is greatest limit gap 120cm; In such cases, fluctuate hermetical ring 4 center hole axis only with steel pipe pile 21 deads in line, reserving stake position axially bored line with cushion cap 20 does not overlap, fluctuate hermetical ring 4 is in 2 skews of floating seal fixture, and side-play amount is maximum, fluctuate hermetical ring 4 is 130cm to the maximum with floating seal fixture 2 spacings after the skew, minimum is 10cm, at this moment, axially, radially inflation seal ring 3,5 with fluctuate hermetical ring 4 skews, therefore axial after the skew, radially inflation seal ring 3,5 still contact with steel pipe pile evenly, after cushion cap and steel pipe pile suit is in place, to axially, radially inflation seal ring 3,5 inflate and can realize good water stopping function.
Situation three, see also Fig. 1-Figure 19, when gap that cushion cap among the present invention and steel pipe pile have in the situation in desirable gap and least favorable gap, fluctuate hermetical ring 4 still can be in good time mobile at floating seal fixture 2, not only so that cushion cap suit steel pipe pile becomes is more prone to, and so that fluctuate hermetical ring 4 center hole axis and steel pipe pile dead in line are axial after guaranteeing to be offset, radially inflation seal ring 3,5 still contact with steel pipe pile evenly, this moment fluctuate hermetical ring 4 the side-play amount on the floating seal fixture 2 between 0 and maximum value between, after cushion cap and steel pipe pile suit is in place, to axially, radially inflation seal ring 3,5 inflate and can realize good water stopping function.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (5)
1. unsteady antipriming that is used for bridge bearing platform or operation platform, comprise floating seal, taper guiding pile cap (1), floating seal fixture (2), it is characterized in that: described taper guiding pile cap (1) is enclosed within on the pile foundation steel pipe pile (21) in advance, described floating seal fixture (2) is in advance on cushion cap (20), described floating seal passes through floating seal fixture (2) in advance on cushion cap (20), described floating seal is by axial inflation seal ring (3), fluctuate hermetical ring (4) and radially inflation seal ring (5) form, described fluctuate hermetical ring (4) is welded with respectively up and down, lower annular U-shaped groove (6,9), and be placed on the floating seal fixture (2), described fluctuate hermetical ring (4) upper, place respectively axial inflation seal ring (3) and inflation seal ring (5) radially in the lower annular U-shaped groove (6,9).
2. the unsteady antipriming for bridge bearing platform or operation platform according to claim 1, it is characterized in that: described taper guiding pile cap (1) the first half is a conical pipe (11), its cone angle is 20 °, the latter half is a cylindricality pipe (12), cylindricality pipe (12) external diameter is identical with steel pipe pile (21) outer wall aperture, and weld together with the first half conical pipe (11), the interior uniform welding of cylindricality pipe (12) has 6-8 wedge shape iron plates (14), and the interior upper, middle and lower of taper guiding pile cap (1) is welded with respectively middle support annulus (13), wedge shape iron plate (14) and lower support annulus (15).
3. the unsteady antipriming for bridge bearing platform or operation platform according to claim 1 is characterized in that: described floating seal fixture has 6-8, and uniform being centered around on the same circumference.
4. the unsteady antipriming for bridge bearing platform or operation platform according to claim 1, it is characterized in that: described fluctuate hermetical ring (4) is annulus, annular aperture is than the large 20mm of steel pipe pile (21) diameter, described annular U-shaped groove (6) is positioned near fluctuate hermetical ring (4) upper outer edge, and notch up, described lower annular U-shaped groove (9) is positioned near inside edge, fluctuate hermetical ring (4) below, and the notch direction is pointed to fluctuate hermetical ring (4) center of circle.
5. the unsteady antipriming for bridge bearing platform or operation platform according to claim 1, it is characterized in that: after cushion cap (20) is sleeved on the steel pipe pile (21), described axial inflation seal ring (3) and radially be full of gas in the inflation seal ring (5), and be connected with steel pipe pile (21) floating seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518740.5A CN103015441B (en) | 2012-12-06 | 2012-12-06 | Floating water stop device for bridge bearing platform or construction platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518740.5A CN103015441B (en) | 2012-12-06 | 2012-12-06 | Floating water stop device for bridge bearing platform or construction platform |
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| Publication Number | Publication Date |
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| CN103015441A true CN103015441A (en) | 2013-04-03 |
| CN103015441B CN103015441B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210518740.5A Active CN103015441B (en) | 2012-12-06 | 2012-12-06 | Floating water stop device for bridge bearing platform or construction platform |
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| CN103362136A (en) * | 2013-07-22 | 2013-10-23 | 中铁大桥局股份有限公司 | Water stopper arranged between prefabricated structure and pile foundation |
| CN104032770A (en) * | 2014-05-30 | 2014-09-10 | 广东省长大公路工程有限公司 | Water sealing device for underwater connection between precast bearing platform and cast-in place pile |
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| CN103362136A (en) * | 2013-07-22 | 2013-10-23 | 中铁大桥局股份有限公司 | Water stopper arranged between prefabricated structure and pile foundation |
| CN103362136B (en) * | 2013-07-22 | 2015-09-23 | 中铁大桥局集团有限公司 | For the antipriming between precast construction and pile foundation |
| CN104032770A (en) * | 2014-05-30 | 2014-09-10 | 广东省长大公路工程有限公司 | Water sealing device for underwater connection between precast bearing platform and cast-in place pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103015441B (en) | 2015-01-21 |
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