CN102108710B - Method for stopping horizontal oscillation in large-scale steel open caisson construction - Google Patents
Method for stopping horizontal oscillation in large-scale steel open caisson construction Download PDFInfo
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- CN102108710B CN102108710B CN2010106245131A CN201010624513A CN102108710B CN 102108710 B CN102108710 B CN 102108710B CN 2010106245131 A CN2010106245131 A CN 2010106245131A CN 201010624513 A CN201010624513 A CN 201010624513A CN 102108710 B CN102108710 B CN 102108710B
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Abstract
The invention relates to the technical field of bridge construction and discloses a method for stopping horizontal oscillation in a large-scale steel open caisson construction. The method comprises the following steps: adding a new oscillation stopping locating boat (8), a new locating boat main anchor (9) and a new pull cable (10); when a steel open caisson (1) swings in the horizontal plane, synchronously tightening the new oscillation stopping locating boat (8) and the new locating boat main anchor (9) which are arranged at one side of the open caisson in which large deviation and high amplitude of oscillation are produced, wherein the tensile force of a single anchor rope is controlled to be within 40t; synchronously tightening a side anchor (11) at one side of the steel open caisson where large deviation and high amplitude of oscillation are produced and the side anchor arranged at the other side of the steel open caisson (1), wherein the tensile force is controlled to be within 10t; and synchronously twisting a front locating boat (2) and a rear locating boat (5) with the steel open caisson (1). By applying the method provided by the invention, the amplitude of horizontal oscillation of the steel open caisson in a flood season construction can be controlled to be reduced, and the method is convenient to operate.
Description
Technical field
The present invention relates to technical field of bridge construction; Relate in particular to the only pendular regime of horizontal hunting in the open caisson construction of a kind of deep water large-scale steel, it is applicable under unfavorable factors influences such as deep water, big flow velocity, turbulent flow and eddy current carries out in the steel open caisson construction of bridge deep water foundation.
Background technology
In the deep water open caisson foundation construction in flood season of existing bridge,, and receive tidal effect owing to the basic present position depth of water, current urgency; Water level also changes frequently; In this case, the open caisson ratio is easier to occur horizontal hunting, and it is the important control factor during open caisson is accurately located that open caisson is stablized.Usually following several method is adopted in construction: 1, tighten up the pendular regime that ends of anchor line, but because little when big during the amplitude of oscillation, when long arc occurring more, each anchor line differs because of the distance of diameter, direction difference and anchor position, stressedly is difficult to evenly, very easily causes anchor line to break; 2, the method for tugboat pushing tow though can reduce the pulling force of Bower Anchor rope, reach the effect that open caisson ends pendulum, but the friction between tugboat and the steel open caisson is bigger to the hull loss, and is needed the long pushing tow of tugboat; 3, friction ends pendular regime, and in theory, the idea that consumes open caisson swing energy is correct; But because the resistance of rubbing device is too little, the effect that suppresses swing is little, long-time running; Slipper is easy to loss, does not reach the stable effect of open caisson horizontal direction; 4, balance weight is ended pendulum, and the kinetic energy when utilizing the open caisson swing raises balance weight, the kinetic energy of open caisson is converted into the potential energy of balance weight; With hoist engine balance weight is dropped to deck then, to consume its potential energy, so repeatedly to reduce the amplitude of oscillation; Stablize open caisson, this kind method is vertically swung for eliminating the open caisson that flood season or other situations cause, effect is comparatively obvious; But for open caisson horizontal hunting, DeGrain.
By contrast; Utilize newly-increased method of only putting station keeping ship and Bower Anchor thereof that the amplitude of oscillation of open caisson is adjusted and controlled; The method is stressed clear and definite; Can effectively reduce the horizontal amplitude of oscillation of open caisson in flood season construction, and station keeping ship can twist anchor synchronously to open caisson, the accurate location implantation final for open caisson provides powerful guarantee.
Summary of the invention
The technical problem that the present invention will solve is: be directed against when occurring than the levels amplitude of oscillation in the open caisson construction process; The side that proposition is big in the open caisson off normal, the amplitude of oscillation is serious increases the job practices of a station keeping ship and Bower Anchor thereof, draws cable that steel open caisson and newly-increased station keeping ship are coupled together through newly-increased.When unstable situation such as swing of steel open caisson occurred level and twisting, tighten up the Bower Anchor of the newly-increased station keeping ship of a side that the open caisson off normal is big, the amplitude of oscillation is serious synchronously, tighten up the side anchor of this side synchronously, make open caisson progressively be reset to design attitude.
In order to solve the problems of the technologies described above, the technical scheme that the present invention adopted is:
The only pendular regime of horizontal hunting comprises the steps: in a kind of big shaped steel open caisson construction
Set up newly-increased station keeping ship (8), newly-increased station keeping ship Bower Anchor (9), the newly-increased cable (10) that draws only put;
Utilization increases newly and only puts station keeping ship (8), newly-increased station keeping ship Bower Anchor (9), increases newly and draw cable (10) that the amplitude of oscillation of steel open caisson (1) is adjusted and controlled; Newly-increased station keeping ship Bower Anchor (9) of adjustment and the newly-increased cable (10) that draws are stressed evenly; Should be controlled at about 20t under the normal condition; Newly-increased station keeping ship Bower Anchor (9) should be controlled in the 50t under steel open caisson (1) swing state, increases newly to draw cable (10) should be controlled in the 40t;
When the phenomenon of swing in the horizontal plane appearred in steel open caisson (1), the concrete steps that the amplitude of oscillation of steel open caisson (1) is adjusted and controlled were:
Step 1, tighten up the newly-increased newly-increased station keeping ship Bower Anchor (9) of only putting station keeping ship (8) of a side that the open caisson off normal is big, the amplitude of oscillation is serious synchronously, single anchor line pulling force is controlled in the 40t;
As optimized technical scheme; Said concrete steps of twisting anchor synchronously are: the newly-increased station keeping ship (8) of only putting with the side that the open caisson off normal is big, the amplitude of oscillation is serious is assumed unified command of; With actual measurement steel open caisson (1) location status and the stressed monitoring of anchorage system is reference; Simultaneously, gradation evenly twists anchor and advances, each 1m one receives.
The invention has the beneficial effects as follows: cost of the present invention is lower; Except can control reduce the steel open caisson in the horizontal amplitude of oscillation of construction in flood season, be convenient to operation and the adjustment, when open caisson need twist anchor to design attitude, newly-increased station keeping ship can assist forward and backward station keeping ship and open caisson to twist anchor synchronously; Improve the stressed of original anchorage system; Effectively guarantee the safety in the anchorage system work progress, shortened the duration greatly, have bigger promotional value.
Description of drawings
Fig. 1 ends the job practices of pendulum for the steel open caisson.
Description of symbols among the figure: 1 steel open caisson, 2 prelocalization ships, 3 prelocalization ship side anchors, 4 Bower Anchors, 5 back station keeping ships, 6 back station keeping ship side anchors, 7 stern anchors, the 8 newly-increased station keeping ships of only putting, 9 newly-increased station keeping ship Bower Anchors, 10 newly-increasedly draw cable, 11 steel open caisson side anchors, 12 draw cable.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further so that those skilled in the art can better understand the present invention and implementing, but the embodiment that lifts not conduct to qualification of the present invention.
As shown in Figure 1, steel open caisson 1 is connected with back station keeping ship 5 through drawing cable 12 and prelocalization ship 2, the strength of the acting in conjunction opposing open caisson horizontal vertical direction through the Bower Anchor 4 and the side anchor 11 of stern anchor 7, steel open caisson, the Primary Location of realization open caisson.The location of prelocalization ship 2 realizes that through the acting in conjunction of prelocalization ship side anchor 3 and Bower Anchor 4 location of back station keeping ship 5 is realized through the acting in conjunction of station keeping ship side anchor 6 and stern anchor 7 afterwards.
Steel open caisson 1 is under the acting in conjunction of the side anchor 11 of steel open caisson, prelocalization ship 2, back station keeping ship 5, Bower Anchor 4, stern anchor 7, prelocalization ship side anchor 3, back station keeping ship side anchor 6; Realize Primary Location; But under inhomogeneous external force effects such as outside turbulent flow, eddy current, the phenomenon to a lateral deviation can appear in steel open caisson 1.
When the phenomenon of swing in the horizontal plane appears in steel open caisson 1; Tighten up the Bower Anchor 9 of the newly-increased station keeping ship 8 of a side that the open caisson off normal is big, the amplitude of oscillation is serious synchronously; Single anchor line pulling force is controlled in the 40t; Tighten up the open caisson off normal is big, the amplitude of oscillation the is serious side steel open caisson side anchor 11 and the opposite side side anchor of steel open caisson 1 synchronously, pulling force is controlled at about 10t, and forward and backward station keeping ship and open caisson twist anchor synchronously.
Carry out preparation (as carrying out wire rope chieftain, first-class corresponding hoist engine etc.) in advance, the side station keeping ship unified command big with the open caisson off normal, that the amplitude of oscillation is serious is reference with actual measurement steel open caisson location status and the stressed monitoring of anchorage system, receives anchor simultaneously and advances.Gradation is evenly twisted anchor and is advanced, and each 1m one receives, and receives every day more than the 5m, mainly selects the steel open caisson stressed less, carries out when in stable condition, and carries out status monitoring immediately.Reach the stabilized steel open caisson with this, and make its accurately purpose of location implantation.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that the technician in present technique field is done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.
Claims (2)
- In one kind big shaped steel open caisson construction horizontal hunting end pendular regime, it is characterized in that, comprise the steps:Set up newly-increased station keeping ship (8), newly-increased station keeping ship Bower Anchor (9), the newly-increased cable (10) that draws only put;Utilization increases newly and only puts station keeping ship (8), newly-increased station keeping ship Bower Anchor (9), increases newly and draw cable (10) that the amplitude of oscillation of steel open caisson (1) is adjusted and controlled; Newly-increased station keeping ship Bower Anchor (9) of adjustment and the newly-increased cable (10) that draws are stressed evenly; Should be controlled at about 20t under the normal condition; Newly-increased station keeping ship Bower Anchor (9) should be controlled in the 50t under steel open caisson (1) swing state, increases newly to draw cable (10) should be controlled in the 40t;When the phenomenon of swing in the horizontal plane appearred in steel open caisson (1), the concrete steps that the amplitude of oscillation of steel open caisson (1) is adjusted and controlled were:Step 1, tighten up the newly-increased newly-increased station keeping ship Bower Anchor (9) of only putting station keeping ship (8) of a side that the open caisson off normal is big, the amplitude of oscillation is serious synchronously, single anchor line pulling force is controlled in the 40t;Step 2, tighten up the open caisson off normal is big, the amplitude of oscillation the is serious side steel open caisson side anchor (11) and the opposite side side anchor of steel open caisson (1) synchronously, pulling force is controlled at about 10t;Step 3, prelocalization ship (2), back station keeping ship (5) twist anchor synchronously with steel open caisson (1).
- 2. the only pendular regime of horizontal hunting in a kind of big shaped steel open caisson construction as claimed in claim 1; It is characterized in that; Said concrete steps of twisting anchor synchronously are: the newly-increased station keeping ship (8) of only putting with the side that the open caisson off normal is big, the amplitude of oscillation is serious is assumed unified command of; With actual measurement steel open caisson (1) location status and the stressed monitoring of anchorage system is reference, and simultaneously, gradation evenly twists anchor and advance, each 1m one receives.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106245131A CN102108710B (en) | 2010-12-30 | 2010-12-30 | Method for stopping horizontal oscillation in large-scale steel open caisson construction |
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| CN2010106245131A CN102108710B (en) | 2010-12-30 | 2010-12-30 | Method for stopping horizontal oscillation in large-scale steel open caisson construction |
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| CN102108710B true CN102108710B (en) | 2012-07-04 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102359116A (en) * | 2011-07-19 | 2012-02-22 | 中铁大桥局股份有限公司 | Cofferdam turning horse mouth and application thereof |
| CN104480865B (en) * | 2014-12-24 | 2016-06-29 | 中铁大桥局集团有限公司 | A kind of Large Steel open caisson accurate positioning method |
| CN104631481B (en) * | 2014-12-26 | 2016-08-31 | 中铁大桥局集团有限公司 | A kind of open caisson mooring positioning device and construction method thereof |
| CN105173015B (en) * | 2015-09-21 | 2017-10-27 | 中铁大桥局集团第四工程有限公司 | A kind of station keeping ship and its method for auxiliary steel well sinking positioning |
| CN106400841B (en) * | 2016-11-29 | 2018-08-24 | 中交第一航务工程局有限公司 | The control system and immersed tube immersion method of immersed tube sinking |
| CN106677121B (en) * | 2016-12-30 | 2018-12-28 | 浙江海洋大学 | Protect the movable permeable spur structure and construction method of Coastal erosion |
| CN106759407B (en) * | 2017-03-01 | 2018-09-11 | 中国五冶集团有限公司 | A kind of method of cofferdam transportation by driving positioning |
| CN107130623A (en) * | 2017-06-19 | 2017-09-05 | 中铁大桥局集团有限公司 | A kind of combined type anchor pier locating system and method for open caisson waterborne |
| CN113700019A (en) * | 2021-09-16 | 2021-11-26 | 中国铁建大桥工程局集团有限公司 | Accurate positioning sinking method for large-diameter steel open caisson |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001182072A (en) * | 1999-12-28 | 2001-07-03 | Kajima Corp | Caisson attitude control method and device therefor |
| CN101666097A (en) * | 2009-08-04 | 2010-03-10 | 中交第二航务工程局有限公司 | Positioning settlement method of large steel suspension box or sinking well |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0227095A (en) * | 1988-07-18 | 1990-01-29 | Taisei Corp | Sinking and burying method |
| JP3754985B2 (en) * | 1996-01-17 | 2006-03-15 | 国土交通省関東地方整備局長 | Caisson installation method at sea |
-
2010
- 2010-12-30 CN CN2010106245131A patent/CN102108710B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001182072A (en) * | 1999-12-28 | 2001-07-03 | Kajima Corp | Caisson attitude control method and device therefor |
| CN101666097A (en) * | 2009-08-04 | 2010-03-10 | 中交第二航务工程局有限公司 | Positioning settlement method of large steel suspension box or sinking well |
Non-Patent Citations (1)
| Title |
|---|
| 殷万寿等.深水浮式沉井的摆动.《土木工程学报》.1981,(第02期), * |
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