CN103015441B - 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 PDF

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Publication number
CN103015441B
CN103015441B CN201210518740.5A CN201210518740A CN103015441B CN 103015441 B CN103015441 B CN 103015441B CN 201210518740 A CN201210518740 A CN 201210518740A CN 103015441 B CN103015441 B CN 103015441B
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CN
China
Prior art keywords
floating
ring
steel pipe
pile
cushion cap
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CN201210518740.5A
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Chinese (zh)
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CN103015441A (en
Inventor
张凯敏
周铭谦
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上海市基础工程有限公司
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Priority to CN201210518740.5A priority Critical patent/CN103015441B/en
Publication of CN103015441A publication Critical patent/CN103015441A/en
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Publication of CN103015441B publication Critical patent/CN103015441B/en

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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

For the floating antipriming of bridge bearing platform or operation platform
Technical field
The present invention relates to a kind of waterborne traffic accident (job platform), especially a kind of bridge prefabrication cushion cap sinking being applied to bridge spanning the sea is in the hermetic seal device of pile foundation operation platform.
Background technology
The making of existing highway bridge cushion cap mainly contains following two kinds of modes: one, in-situ casting; Two, prefabrication.Wherein, prefabricate cushion cap transports on-the-spot sinking to when pile foundation connects, mostly adopts the dry back cover form of the more manageable concrete of short construction period, workmanship to carry out.During dry back cover concrete, the waterstop sealing in foundation pile and prefabricated cushion cap jack gap is in succession " key technology ".Conventional method slots preset sky air-sac inflated (medium) rubber seal to realize waterproof sealing at cushion cap stake position jack, is exactly inflation (medium) rubber ring expansion afterwards, and is closely attached on cushion cap and steel pipe pile lining.Its method has following shortcoming: excesssive gap reserved between A. cushion cap and steel pipe pile, and it is larger that rubber seal ring cross-section need do, and when cushion cap is set with steel pipe pile, sealing ring easily walks disengaging; , when installing with cushion cap, axle center skew may be there is in the skew B. during the construction of steel pipe pile stake position, sealing ring will be caused like this to offset to a direction, gap little Chu, sealing ring is subject to very large extruding, sealing ring may be caused to squeeze cut or wear and tear, and sealing ring inflation (medium) contacts uneven afterwards; Gap general goal, sealing ring inflation (medium) easily goes out groove afterwards and comes off, and well can not realize water stopping function; C. reserved between cushion cap and steel pipe pile gap is little, and foundation pile stake position construction hour offset amount is large, and can not dock smoothly with cushion cap preformed hole, stake position construction precision requires too high, and construction cost is large, and is sometimes difficult to realize.
Therefore, how to provide a kind of and can realize that cushion cap stop safe water is reliable and to be convenient to cushion cap antipriming that cushion cap and steel pipe pile be set be those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
The present invention be to solve foundation pile and prefabricated cushion cap in succession time jack gap waterstop sealing technical problem, and a kind of floating antipriming for bridge bearing platform or operation platform is provided, this apparatus structure is simple, easy for installation, stagnant water effect is good and well can compensate the side-play amount in axle center when cushion cap and steel pipe pile are installed.
To achieve the above object, the present invention adopts following technical scheme:
A kind of floating antipriming for bridge bearing platform or operation platform, comprise floating seal, taper guiding pile cap, floating seal fixture, be characterized in: taper guiding pile cap is enclosed within pile foundation steel pipe pile in advance, floating seal fixture is in advance on cushion cap, floating seal passes through floating seal fixture in advance on cushion cap, floating seal is by axial inflation seal ring, fluctuate hermetical ring and radial inflation seal ring composition, fluctuate hermetical ring is welded with up and down respectively, lower annular U-shaped groove, and be placed on floating seal fixture, fluctuate hermetical ring upper, axial inflation seal ring and radial inflation seal ring is placed respectively in 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, in cylindricality pipe, uniform welding has 6-8 wedge shape iron plates, and in taper guiding pile cap, upper, middle and lower is welded with middle support annulus, wedge shape iron plate and lower support annulus respectively.
Floating seal fixture has 6-8, and uniform be centered around circumferentially same.
Fluctuate hermetical ring is annulus, annular aperture 20mm larger than steel pipe pile diameter, described annular U-shaped groove is positioned near fluctuate hermetical ring upper outer edge, and notch upward, described lower annular U-shaped groove is positioned at inside edge below fluctuate hermetical ring, and the fluctuate hermetical ring center of circle is pointed in notch direction.
After cushion cap is sleeved on steel pipe pile, is full of gas in axial inflation seal ring and radial inflation seal ring, and is connected with steel pipe pile floating seal.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) the present invention has cone angle to be the taper guiding pile cap of 20 ° by adopting at steel pipe pile top cover, and cushion cap can be made more easily to put steel pipe pile.
(2) the present invention adopts " floating seal " to pass through " fixture " and is preset at formation on cushion cap a whole set of " float antipriming ", " float antipriming " can not only be made to install on cushion cap and to become simple, and realize pneumatic rubber seal circle fixed constraint, pneumatic rubber seal circle can be made to move with joint ring, form " floating seal " to cushion cap and steel pipe pile, compensate the shaft core position deviation that the stake position preformed hole of prefabricated cushion cap and on-the-spot steel pipe pile construction displacement make to exist during installation.
(3) the radial and axial sealing ring that device of the present invention adopts can move with joint ring, like this when cushion cap and steel pipe pile suit exist axle center skew, can keep and steel pipe pile axle center centering problem, avoid producing steel pipe pile amesiality, extruding, shearing sealing circle and damaging, large side, gap is caused sealing ring inflation and routs up de-groove and the squeezed situations such as destruction of cutting, and sealing device can be made to contact more even with steel pipe pile with cushion cap, stagnant water effect is better, strengthen the fault-tolerant amount to steel pipe pile site operation offset deviation, the stake position construction precision requirement of field basic stake under reduction hard situation.
Due to above feature, the bridge bearing platform of the present invention in over strait or river course is built has very strong practical value with the field such as offshore construction operating platform.
Accompanying drawing explanation
Fig. 1 is the cushion cap front view being prefabricated with floating seal and fixture in the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the front view of cushion cap when being initially 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 in Fig. 1;
Fig. 6 be cushion cap and steel pipe pile be set with in position after front view;
Fig. 7 is the partial enlargement structural representation of B in Fig. 6;
Fig. 8 is cushion cap and steel pipe pile front view when having an ideal gap;
Fig. 9 is the top view of Fig. 8;
Figure 10 is the partial enlarged drawing of D in Fig. 8;
Figure 11 is cushion cap and steel pipe pile front view when having a least favorable gap;
Figure 12 is the top view of Figure 11;
Figure 13 is the partial enlarged drawing of E in 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 in 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.
Detailed description of the invention
Be described in further detail to a kind of floating antipriming being applied to bridge bearing platform or operation platform of the present invention below.For making object of the present invention, feature becomes apparent, and is further described the specific embodiment of the present invention below in conjunction with accompanying drawing.It should be noted that, accompanying drawing all adopts the form of simplification and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Embodiment:
For a floating antipriming for bridge bearing platform or operation platform, structure refers to Fig. 1 to Fig. 5, builds and hermetic seal effect during offshore construction operating platform for the bridge bearing platform in over strait or river course.This cushion cap floats antipriming: comprise floating seal, taper guiding pile cap 1, floating seal fixture 2, taper guiding pile cap 1 is enclosed within pile foundation steel pipe pile 21 in advance, floating seal fixture 2 is pre-on cushion cap 20, floating seal is pre-on cushion cap 20 by floating seal fixture 2, floating seal is by axial inflation seal ring 3, fluctuate hermetical ring 4 and radial inflation seal ring 5 form, fluctuate hermetical ring about 4 is welded with respectively, lower annular U-shaped groove 6, 9, and be placed on floating seal fixture 2, axial inflation seal ring 3 and radial inflation seal ring 5 are placed on the upper of fluctuate hermetical ring 4 respectively, lower annular U-shaped groove 6, in 9.
Concrete, please continue to refer to Fig. 8,9 and Figure 11,12, this cushion cap floats in antipriming, total 6-8 floating seal fixture 2,6-8 described floating seal fixture 2 be uniform be centered around on cushion cap 20 circumferentially same.
Concrete, please continue to refer to Fig. 1-Figure 13, this cushion cap floats in antipriming, axial inflation seal ring 3, fluctuate hermetical ring 4 and radial inflation seal ring 5 form floating seal jointly, and floating seal can move on fixture 2, fluctuate hermetical ring 4 is circular ring structures, annular aperture fills perhaps deviate and determine (general control is at φ stake ± 10mm) according to the construction technology of pile foundation steel pipe pile 21, namely annular distance makes the aperture of 20mm larger than steel pipe pile 21 diameter, fluctuate hermetical ring is welded with up and down respectively, lower annular U-shaped groove 6, 9, upper annular U-shaped groove 6 is positioned near fluctuate hermetical ring 4 upper outer edge, and notch upward, lower annular U-shaped groove 9 is positioned at inside edge below fluctuate hermetical ring 4, and fluctuate hermetical ring 4 center of circle is pointed in notch direction.
Concrete, please continue to refer to Figure 14,15, Figure 16, this cushion cap floats in antipriming, also comprise axial inflation seal ring air-filled pore 7 and radial inflation seal ring air-filled pore 8, axial inflation seal ring air-filled pore 7 is positioned at inside annular U-shaped groove 6, and radial inflation seal ring air-filled pore 8 is positioned on the upside of lower annular U-shaped groove 9, and forms a through hole with fluctuate hermetical ring 4.
Concrete, please continue to refer to Fig. 1-Figure 16, this cushion cap floats in antipriming, also comprise axial inflation seal ring 3 and radial inflation seal ring 5, axial inflation seal ring 3 is positioned in the upper annular U-shaped groove 6 of fluctuate hermetical ring 4, and do not inflate time initial, treat that cushion cap is sleeved on steel pipe pile 21, gas is full of by axial inflation seal ring air-filled pore 7 after installation in position, radial inflation seal ring 5 is positioned in the lower annular U-shaped groove 9 of fluctuate hermetical ring 4, and do not inflate time initial, treat that cushion cap 20 is sleeved on steel pipe pile 21, gas is full of by radial inflation seal ring air-filled pore 8 after installation in position.
Concrete, please continue to refer to Fig. 1-Fig. 5, Fig. 8-Figure 12, Figure 17-Figure 19, this cushion cap floats in 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 ° (namely canalis spinalis wall and tubular axis line gradient are 10 °), the latter half is a cylindricality pipe 12, pile cover 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, in pile cover cylindricality pipe 12, uniform welding has 6-8 wedge shape iron plates 14, in taper guiding pile cap 1, upper, middle and lower is welded with middle support annulus 13 respectively, wedge shape iron plate 14 and lower support annulus 15.
Concrete, please continue to refer to Fig. 1-Figure 16, this cushion cap float fluctuate hermetical ring described in antipriming 4 and axially, the floating seal that forms of radial inflation seal ring 3,5 can move on floating seal fixture 2, can realize when cushion cap 20 and steel pipe pile 21 are set with because the floating migration in gap is carried out in the axle center skew that may exist.
Before cushion cap 20 overlaps steel pipe pile 21, taper pile cover 1 is set with pile foundation steel pipe pile 21 top, and " radial direction " and " axis " sealing ring are placed in the groove of " floating seal " assembly respectively when not inflating, again " floating seal " component placement is fixed with " fixture " on cushion cap 20, formed a whole set of " float antipriming ", after the lifting of cushion cap transportation by driving puts in place, cushion cap 20 is reserved hole, stake position, with pile foundation steel pipe pile 21 contraposition, slowly transfer cushion cap, each floating antipriming is inserted on steel pipe pile taper pile cover 1 (see Fig. 3, 4, 5), continue sinking cushion cap 20 to design elevation, in position (see Fig. 6, 7).Then by preset loading line, " inflating rubber radial direction and axial sealing ring " is inflated, under gas pressure, sealing ring can expand with cushion cap and steel pipe pile respectively and be close to, and " floating seal " and the gap between cushion cap 20 and steel pipe pile 21 is sealed, realizes water stopping function.Because sealing device is floating; cushion cap " fixture " is transportable; even if there is axle center skew when therefore cushion cap 20 and steel pipe pile 21 are set with; floating antipriming can realize migration well; gas-flow closure circle so not only can be protected may to squeeze and cut or wear and tear by sealing ring because axle center when cushion cap 20 and steel pipe pile 21 are installed offsets when the side causing gap little is squeezed; and the side that gap is large; there is the phenomenon of de-groove in sealing ring; and the contact between sealing ring and steel pipe pile and cushion cap can be made even, stagnant water effect is better.In addition, this device is owing to adopting tapered pile cap sleeve 1 on steel pipe pile 21 top, and can make " floating seal " automatic aligning, the sealing device making cushion cap preset and the installation of steel pipe pile become simple.
A kind of four-stage of floating antipriming in cushion cap suit steel pipe pile process being applied to bridge bearing platform or operation platform of the present invention.
Stage one, refer to Fig. 1,2, Fig. 8,9, before cushion cap 20 overlaps steel pipe pile 21, taper guiding pile cap 1 is set with pile foundation steel pipe pile 21 top, and axis and radial direction seal ring is placed on respectively when not inflating in the groove of U-shaped up and down of " floating seal " assembly, then " floating seal " component placement is fixed with " fixture " on cushion cap.
In the stage two, refer to Fig. 3,4, Fig. 5, after the lifting of cushion cap 20 transportation by driving puts in place, cushion cap 20 is reserved hole, stake position, with 21 contrapositions of pile foundation steel pipe, slowly transfer cushion cap, each floating seal is inserted on steel pipe pile taper guiding pile cap 1.
In the stage three, refer to Fig. 6, Fig. 7, continue sinking cushion cap 20 to design elevation, in position.Then by preset loading line, " inflating rubber axis and radial direction seal ring " is inflated, under gas pressure, sealing ring can expand with cushion cap 20 and steel pipe pile 21 respectively and be close to, and filling " floating seal " and the gap between cushion cap 20 and steel pipe pile 21 seal, and realize water stopping function.
Stage four, pump the seawater left over before sealing in cushion cap, if sealing effectiveness is undesirable, still seep water on a small quantity, refer to Figure 20, by water stop spacer 17 and expansion bolt 18, waterstop sealing ring 16 is installed at cushion cap 20 inwall, and by injected hole slip casting 19, fill the gap between steel pipe pile 21 wall and cushion cap 20, realize water stopping function.
The three kinds of situations needing to realize water stopping function that a kind of floating antipriming being applied to bridge bearing platform or operation platform of the present invention may run into.
Situation one, refer to Fig. 1-Figure 10 and composition graphs 14-Figure 19, wherein Fig. 8,9 is be schematic diagram when cushion cap in the present invention 20 and steel pipe pile 21 have an ideal gap, under this kind of situation, cushion cap reserves stake position axially bored line and steel pipe pile dead in line, and the gap uniformity between hole, stake position and steel pipe pile reserved by cushion cap, and is 60cm; In such cases, fluctuate hermetical ring 4 center hole axis also reserves stake position axially bored line and steel pipe pile dead in line with cushion cap, fluctuate hermetical ring 4 does not offset on floating seal fixture 2, and fluctuate hermetical ring 4 is equal with floating seal fixture 2 spacing is 70cm, until cushion cap and steel pipe pile be set with in place after, to axially, radial inflation seal ring 3,5 carries out inflation and can realize good water stopping function.
Situation two, refer to Fig. 1-Fig. 7 and composition graphs 11-Figure 19, wherein Figure 11,12 is schematic diagram when cushion cap in the present invention 20 and steel pipe pile 21 have a least favorable gap, and under this kind of situation, cushion cap 20 is reserved stake position axially bored line with steel pipe pile 21 axis and do not overlapped, existence offsets and side-play amount is maximum a kind of situation, the gap that cushion cap 20 is reserved between hole, stake position and steel pipe pile 21 is uneven, and 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 dead in line, reserve stake position axially bored line with cushion cap 20 not overlap, fluctuate hermetical ring 4 offsets on floating seal fixture 2, and side-play amount is maximum, after skew, fluctuate hermetical ring 4 and floating seal fixture 2 spacing are 130cm to the maximum, minimum is 10cm, now, axially, radial inflation seal ring 3, 5 offset with fluctuate hermetical ring 4, therefore axial after skew, radial inflation seal ring 3, 5 still contact with steel pipe pile evenly, until cushion cap and steel pipe pile be set with in place after, to axis, radial inflation seal ring 3, 5 carry out inflation can realize good water stopping function.
Situation three, refer to Fig. 1-Figure 19, when the gap that cushion cap in the present invention and steel pipe pile have between ideal gap and least favorable gap when, fluctuate hermetical ring 4 still can be in good time move on floating seal fixture 2, not only make cushion cap suit steel pipe pile become to be more prone to, and make fluctuate hermetical ring 4 center hole axis and steel pipe pile dead in line ensure to offset afterwards axially, radial inflation seal ring 3, 5 still contact with steel pipe pile evenly, now the side-play amount of fluctuate hermetical ring 4 on floating seal fixture 2 is between 0 and maximum value, until cushion cap and steel pipe pile be set with in place after, to axis, radial inflation seal ring 3, 5 carry out inflation can realize good water stopping function.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (5)

1. the floating antipriming 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 pile foundation steel pipe pile (21) in advance, described floating seal fixture (2) is pre-on cushion cap (20), described floating seal is pre-on cushion cap (20) by floating seal fixture (2), described floating seal is by axial inflation seal ring (3), fluctuate hermetical ring (4) and radial inflation seal ring (5) composition, described fluctuate hermetical ring (4) is welded with up and down respectively, lower annular U-shaped groove (6, 9), and be placed on floating seal fixture (2), described fluctuate hermetical ring (4) upper, lower annular U-shaped groove (6, 9) axial inflation seal ring (3) and radial inflation seal ring (5) is placed in respectively, described floating seal can be upper mobile at floating seal fixture (2).
2. the floating 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), cylindricality pipe (12) interior uniform welding has 6-8 wedge shape iron plates (14), taper guiding pile cap (1) interior upper, middle and lower is welded with middle support annulus (13) respectively, wedge shape iron plate (14) and lower support annulus (15).
3. the floating 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 be centered around circumferentially same.
4. the floating 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 20mm larger than steel pipe pile (21) diameter, described annular U-shaped groove (6) is positioned near fluctuate hermetical ring (4) upper outer edge, and notch upward, described lower annular U-shaped groove (9) is positioned near inside edge, fluctuate hermetical ring (4) below, and fluctuate hermetical ring (4) center of circle is pointed in notch direction.
5. the floating antipriming for bridge bearing platform or operation platform according to claim 1, it is characterized in that: when cushion cap (20) is sleeved on after on steel pipe pile (21), be full of gas in described axial inflation seal ring (3) and radial inflation seal ring (5), and be connected with steel pipe pile (21) floating seal.
CN201210518740.5A 2012-12-06 2012-12-06 Floating water stop device for bridge bearing platform or construction platform CN103015441B (en)

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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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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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CN103015441B true CN103015441B (en) 2015-01-21

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06180059A (en) * 1993-03-04 1994-06-28 Hiroshi Hirata Underwater work space creation and maintenance device
CN2649643Y (en) * 2003-07-17 2004-10-20 李键 Automatic telescopic sealing-up device
CN1318703C (en) * 2003-10-31 2007-05-30 上海建工(集团)总公司 Cellulated or half cellulated self natant jacket
CN1635223A (en) * 2003-12-26 2005-07-06 上海市基础工程公司 Bridge cofferdam waterstop construction process
CN100591863C (en) * 2007-10-19 2010-02-24 山东高速青岛公路有限公司 Underwater no-bottom closing concrete boxed cofferdam and method of use thereof
CN101260674A (en) * 2008-04-15 2008-09-10 钟爱民 Hermetic seal process for box body and pile body
CN202023265U (en) * 2011-04-15 2011-11-02 中国葛洲坝集团股份有限公司 Supporting bracket for water-stopping belt of concrete construction joint
CN102155026A (en) * 2011-04-22 2011-08-17 吴兆圣 Waterproof method for precast pile head
CN102518146A (en) * 2011-11-18 2012-06-27 钟爱民 Connecting way of cofferdam and bearing platform

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