CN102877476A - Positioning and constructing method of steel cofferdam - Google Patents
Positioning and constructing method of steel cofferdam Download PDFInfo
- Publication number
- CN102877476A CN102877476A CN2012103976740A CN201210397674A CN102877476A CN 102877476 A CN102877476 A CN 102877476A CN 2012103976740 A CN2012103976740 A CN 2012103976740A CN 201210397674 A CN201210397674 A CN 201210397674A CN 102877476 A CN102877476 A CN 102877476A
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- Prior art keywords
- steel cofferdam
- limited rack
- hoist engine
- ridge
- anchorage
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 71
- 239000010959 steel Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003643 water by type Substances 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a positioning and constructing method of a steel cofferdam. The method comprises the following steps of: constructing a limiting frame foundation; assembling a limiting frame; mounting the limiting frame; establishing a territorial water anchorage ridge; taking a winch in place; taking the steel cofferdam in place; and positioning the steel cofferdam. When the pier site of a bridge is close to the shoreside distance, and a guide ship is impractically to be arranged at the part close to the shore side, the method can be used for positioning the steel cofferdam, and can save the construction cost for positioning the steel cofferdam.
Description
Technical field
The present invention relates to the bridge foundation construction method, be specifically related to a kind of positioning construction method of steel cofferdam.
Background technology
The steel cofferdam construction technology is adopted in bridge deepwater foundation construction usually, steel cofferdam on the water assembly unit complete after, need position steel cofferdam and sink down into the riverbed.The sinking of steel cofferdam normally adopts station keeping ship, guiding ship and funicular system to position, but in some bridge, because the pier position offshore back gauge of bridge, the side position that pulls in to shore can't be arranged the guiding ship, and the mode that causes station keeping ship, guiding ship and funicular system to position can't be implemented.Therefore, be necessary to develop a kind of positioning construction method of the steel cofferdam for above-mentioned special construction environment.
Summary of the invention
The positioning construction method that the purpose of this invention is to provide a kind of steel cofferdam, the offshore back gauge is nearer when the pier position of bridge, and the side position that pulls in to shore can't be arranged the guiding ship time, and the method can position steel cofferdam, can also save the construction cost of steel cofferdam location simultaneously.
The positioning construction method of a kind of steel cofferdam of the present invention, its step is as follows:
The first step, position-limited rack foundation construction: be provided with three position-limited rack bases that equidistantly distribute on the bank near the pier position;
Second step, the assembling spacing frame: be assembled into position-limited rack with universal rod body on the coast, this position-limited rack is instead " E " type;
The 3rd step, mounting limit frame: be located by connecting on below the position-limited rack left end on three position-limited rack bases, make the right side of position-limited rack vertical with the bridge axis;
In the 4th step, ridge, inland waters anchorage is set: the upstream, river course be provided with ridge, inland waters anchorage on the bank, this ridge, inland waters anchorage is positioned at the upside of position-limited rack;
In the 5th step, hoist engine is in place: the upstream, river course be provided with the first hoist engine, the second hoist engine on the bank, and the first hoist engine, the second elevator machine be positioned between ridge, inland waters anchorage and the position-limited rack, is provided with the 3rd hoist engine on the bank in the downstream, river course;
The 6th step, steel cofferdam is in place: when steel cofferdam transportation by driving during to the pier position, the end facing water of steel cofferdam is connected with ridge, inland waters anchorage by the first tackle pulley, the second tackle pulley, the first hoist engine is connected on the second tackle pulley by wire rope, the second hoist engine is connected on the first tackle pulley by wire rope, and the 3rd hoist engine is connected to the tail end of steel cofferdam by wire rope;
The 7th step, steel cofferdam location: mark midline position at position-limited rack, make center line and the bridge dead in line of position-limited rack, mark midline position at steel cofferdam, the steel cofferdam left side is concordant with the position-limited rack right side, and pass through the position that first, second, third hoist engine is regulated steel cofferdam upstream and downstream direction, and the center line of steel cofferdam is overlapped with the center line of position-limited rack, namely finish the location of steel cofferdam.
Steel cofferdam upstream and downstream direction still adopts canvassing of station keeping ship to regulate, and the riverbank side direction adopts position-limited rack to replace the guiding ship to carry out lateral register, the applicable scope of this method is that the steel cofferdam edge is far from the bridge of water front in the 20m scope, on the bank near the pier position position-limited rack basis is set, position-limited rack adopts rod member assembled, and position-limited rack is fixed on the position-limited rack basis, when pier position, steel cofferdam transportation by driving road, by position-limited rack and the first hoist engine, the second hoist engine and the 3rd hoist engine cooperate the accurate location of finishing steel cofferdam, and then carry out the sinking operation of steel cofferdam.
Beneficial effect of the present invention:
(1) at steel cofferdam apart from the close together of bank side and can't adopt the mode of conventional station keeping ship, guiding ship and funicular system to carry out the steel cofferdam location time, adopt method of the present invention can guarantee the positioning accuracy of steel cofferdam.
(2) adopt the method to the steel cofferdam location of constructing, not only construction technology is simple, and economy, safety, can save investment and time when positioning system construction, constructs for part-structure under the bridge water and has won the valuable time.
In a word, the present invention is directed to the special construction environment in the bridge deepwater pile foundation bearing platform construction process, adopt the position-limited rack of universal rod body assembly unit to implement the job practices of steel cofferdam location, not only saved the construction cost of steel cofferdam location, reached the accurate location of steel cofferdam, and construction technology is simple.
Description of drawings
Fig. 1 is the floor map of steel cofferdam of the present invention location;
Fig. 2 is the sectional schematic diagram of steel cofferdam of the present invention location;
Among the figure: 1, ridge, inland waters anchorage, the 2, first tackle pulley, 3, position-limited rack, 4, steel cofferdam, the 5, second tackle pulley, the 6, first hoist engine, 7, the bridge axis, 8, the position-limited rack basis, the 9, second hoist engine, the 10, the 3rd hoist engine.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Participate in illustrated in figures 1 and 2, the positioning construction method of a kind of steel cofferdam of the present invention, its step is as follows:
The first step, position-limited rack foundation construction: be provided with three position-limited rack bases 8 that equidistantly distribute on the bank near the pier position; In order to guarantee the quality of position-limited rack basis 8 constructions, to guarantee the safety after position-limited rack 3 is installed, after the foundation ditch blast working is finished, just carry out the concreting on position-limited rack basis 8.
Second step, the assembling spacing frame: be assembled into position-limited rack 3 with universal rod body on the coast, this position-limited rack 3 is instead " E " type;
The 3rd step, mounting limit frame: be located by connecting on three position-limited rack bases 8 below position-limited rack 3 left end, make the right side of position-limited rack 3 vertical with bridge axis 7;
In the 4th step, ridge, inland waters anchorage is set: the upstream, river course be provided with ridge, inland waters anchorage 1 on the bank, this ridge, inland waters anchorage 1 is positioned at the upside of position-limited rack 3;
In the 5th step, hoist engine is in place: the upstream, river course be provided with the first hoist engine 6, the second hoist engine 9 on the bank, and the first hoist engine 6, the second hoist engine 9 be between ridge 1, inland waters anchorage and position-limited rack 3, is provided with the 3rd hoist engine 10 on the bank in the downstream, river course;
The 6th step, steel cofferdam is in place: when steel cofferdam 4 transportation by drivings during to the pier position, the end facing water of steel cofferdam 4 is connected with ridge, inland waters anchorage 1 by the first tackle pulley 2, the second tackle pulley 5, the first hoist engine 6 is connected on the second tackle pulley 5 by wire rope, and the second hoist engine 9 is connected on the first tackle pulley 2 by wire rope; For the ease of regulating the position of steel cofferdam 4, the 3rd hoist engine 10 is connected to the tail end of steel cofferdam 4 by wire rope, so that the power of steel cofferdam 4 by the riverbank side to be provided;
The 7th step, steel cofferdam location: mark midline position at position-limited rack 3, the center line of position-limited rack 3 is overlapped with bridge axis 7, mark midline position at steel cofferdam 4, steel cofferdam 4 left sides are concordant with position-limited rack 3 right sides, and pass through first, second, third hoist engine 6,9,10 and regulate the position of steel cofferdams 4 upstream and downstream directions, the center line of steel cofferdam 4 is overlapped with the center line of position-limited rack 3, namely finish the location of steel cofferdam 4.
Claims (1)
1. the positioning construction method of a steel cofferdam, its step is as follows:
The first step, position-limited rack foundation construction: be provided with three position-limited rack bases (8) that equidistantly distribute on the bank near the pier position;
Second step, the assembling spacing frame: be assembled into position-limited rack (3) with universal rod body on the coast, this position-limited rack (3) is instead " E " type;
The 3rd step, mounting limit frame: be located by connecting on three position-limited rack bases (8) below position-limited rack (3) left end, make the right side of position-limited rack vertical with the bridge axis;
In the 4th step, ridge, inland waters anchorage is set: the upstream, river course be provided with ridge, inland waters anchorage (1) on the bank, this ridge, inland waters anchorage (1) is positioned at the upside of position-limited rack (3);
The 5th step, hoist engine is in place: be provided with the first hoist engine (6), the second hoist engine (9) on the bank in the upstream, river course, and the first hoist engine (6), the second hoist engine (9) are positioned between ridge, inland waters anchorage (1) and the position-limited rack (3), are provided with the 3rd hoist engine (10) on the bank in the downstream, river course;
The 6th step, steel cofferdam is in place: when steel cofferdam (4) transportation by driving during to the pier position, the end facing water of steel cofferdam (4) is connected with ridge, inland waters anchorage (1) by the first tackle pulley (2), the second tackle pulley (5), the first hoist engine (6) is connected on the second tackle pulley (5) by wire rope, the second hoist engine (9) is connected on the first tackle pulley (2) by wire rope, and the 3rd hoist engine (10) is connected to the tail end of steel cofferdam (4) by wire rope;
The 7th step, steel cofferdam location: mark midline position at position-limited rack (3), the center line of position-limited rack (3) is overlapped with bridge axis (7), mark midline position at steel cofferdam (4), steel cofferdam (4) left side is concordant with position-limited rack (3) right side, and pass through the position that first, second, third hoist engine (6,9,10) is regulated steel cofferdam (4) upstream and downstream direction, and the center line of steel cofferdam (4) is overlapped with the center line of position-limited rack (3), namely finish the location of steel cofferdam (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210397674.0A CN102877476B (en) | 2012-10-18 | 2012-10-18 | Positioning and constructing method of steel cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210397674.0A CN102877476B (en) | 2012-10-18 | 2012-10-18 | Positioning and constructing method of steel cofferdam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102877476A true CN102877476A (en) | 2013-01-16 |
| CN102877476B CN102877476B (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210397674.0A Expired - Fee Related CN102877476B (en) | 2012-10-18 | 2012-10-18 | Positioning and constructing method of steel cofferdam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252306A (en) * | 2018-03-20 | 2018-07-06 | 中国水利水电第五工程局有限公司 | A kind of underwater filler throwing system and construction method |
| CN110939144A (en) * | 2019-11-12 | 2020-03-31 | 中国铁建大桥工程局集团有限公司 | Double-wall steel suspension box cofferdam system under tidal alternating current condition in typhoon area and positioning method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09268562A (en) * | 1996-03-28 | 1997-10-14 | Penta Ocean Constr Co Ltd | Dry working method and working case employed therefor |
| CN101205720A (en) * | 2007-12-05 | 2008-06-25 | 中铁大桥局股份有限公司 | Down-lying, bed-contacting and sinking control technologies of super large steel cofferdam |
| CN101368389A (en) * | 2008-09-24 | 2009-02-18 | 中铁大桥局集团第五工程有限公司 | Single and double-wall combined steel cofferdam construction method and its single and double-wall combined steel cofferdam |
| JP2009068196A (en) * | 2007-09-11 | 2009-04-02 | Toyo Constr Co Ltd | Construction method for cofferdam wall using steel segment |
| CN201843142U (en) * | 2010-10-14 | 2011-05-25 | 中国建筑股份有限公司 | Guide positioning device for construction of steel cofferdam |
| CN102094429A (en) * | 2011-01-12 | 2011-06-15 | 广东省长大公路工程有限公司 | Lowering control method of double-wall steel cofferdam |
| CN102121251A (en) * | 2011-01-30 | 2011-07-13 | 中铁八局集团第一工程有限公司 | Construction method for pouring main tower pier foundation of bridge on deep-water oblique river bed |
| CN102644290A (en) * | 2012-05-14 | 2012-08-22 | 中国十九冶集团有限公司 | Steel cofferdam construction method suitable for construction of deep silt layer bridge in shallow sea area |
-
2012
- 2012-10-18 CN CN201210397674.0A patent/CN102877476B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09268562A (en) * | 1996-03-28 | 1997-10-14 | Penta Ocean Constr Co Ltd | Dry working method and working case employed therefor |
| JP2009068196A (en) * | 2007-09-11 | 2009-04-02 | Toyo Constr Co Ltd | Construction method for cofferdam wall using steel segment |
| CN101205720A (en) * | 2007-12-05 | 2008-06-25 | 中铁大桥局股份有限公司 | Down-lying, bed-contacting and sinking control technologies of super large steel cofferdam |
| CN101368389A (en) * | 2008-09-24 | 2009-02-18 | 中铁大桥局集团第五工程有限公司 | Single and double-wall combined steel cofferdam construction method and its single and double-wall combined steel cofferdam |
| CN201843142U (en) * | 2010-10-14 | 2011-05-25 | 中国建筑股份有限公司 | Guide positioning device for construction of steel cofferdam |
| CN102094429A (en) * | 2011-01-12 | 2011-06-15 | 广东省长大公路工程有限公司 | Lowering control method of double-wall steel cofferdam |
| CN102121251A (en) * | 2011-01-30 | 2011-07-13 | 中铁八局集团第一工程有限公司 | Construction method for pouring main tower pier foundation of bridge on deep-water oblique river bed |
| CN102644290A (en) * | 2012-05-14 | 2012-08-22 | 中国十九冶集团有限公司 | Steel cofferdam construction method suitable for construction of deep silt layer bridge in shallow sea area |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252306A (en) * | 2018-03-20 | 2018-07-06 | 中国水利水电第五工程局有限公司 | A kind of underwater filler throwing system and construction method |
| CN108252306B (en) * | 2018-03-20 | 2024-01-23 | 中国水利水电第五工程局有限公司 | Underwater filler throwing and filling system and construction method |
| CN110939144A (en) * | 2019-11-12 | 2020-03-31 | 中国铁建大桥工程局集团有限公司 | Double-wall steel suspension box cofferdam system under tidal alternating current condition in typhoon area and positioning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102877476B (en) | 2014-06-04 |
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Granted publication date: 20140604 |
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