CN106869150A - Double-wall steel suspension box installing force system conversion method - Google Patents
Double-wall steel suspension box installing force system conversion method Download PDFInfo
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- CN106869150A CN106869150A CN201710054347.8A CN201710054347A CN106869150A CN 106869150 A CN106869150 A CN 106869150A CN 201710054347 A CN201710054347 A CN 201710054347A CN 106869150 A CN106869150 A CN 106869150A
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- steel
- lifted trunk
- pile casting
- steel lifted
- steel pile
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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Abstract
The invention discloses double-wall steel suspension box installing force system conversion method, comprise the following steps：(1) many steel pile castings are installed on the water, then bracket is welded on each steel pile casting, as the interim platform for lining of steel lifted trunk；(2) assembled entirety steel lifted trunk base plate；(3) assembled steel lifted trunk side plate, connects steel pile casting high formation and increases steel pile casting；(4) be respectively mounted above steel pile casting horizontal spandrel girder increasing, one group of longitudinal Bailey beam is installed on every two horizontal spandrel girders；(5) jack is respectively mounted in every group of Bailey beam, a screw thread suspension rod is then passed through on each jack and screw thread suspension rod is connected with the hanger on steel lifted trunk side plate inwall, constitute hangar system；(6) first, second, third power system conversion is carried out successively.It is simple to operate using this method easy construction, can improve efficiency of construction, transfer high precision and safe.
Description
Technical field
The present invention relates to a kind of power system conversion method, the invention particularly relates to double-wall steel suspension box installing force system conversion method.
Background technology
The main bridge large volume high-rise pile cap of Bridge Project is constructed using double-wall steel cofferdam method, single double-wall steel cofferdam
The area of plane can be reached for 540 square metres or so, and cofferdam is up to 13 meters or so, and bottom concrete is thick up to 1.5m or so, cofferdam
Up to 2200 tons, steel lifted trunk is put into water to overall weight using marine assembled under entirety, and 10 meters of underwater penetration after decentralization are after shaping
Cushion cap and pier stud construction provide dry operating environment.
Because steel lifted trunk own wt is big, underwater penetration depth is influenceed greatly by sea beat, and steel lifted trunk entirety stress is by itself
Gravity gradually becomes buoyant of sea water, and stressing conditions are complicated and changeable in decentralization process, has a strong impact on the precision that steel lifted trunk is integrally transferred
And security.
The such large-sized double-walled steel suspended box cofferdam of industry, common pay-off method is integrally to be transferred using large-scale floating crane equipment,
In the presence of having the disadvantage：Requirement to crane barge equipment is high；The processing place that the processing of box needs is larger, and with requiring processing space distance
Construction site is nearer；Structure is more complicated, and the consumption of steel is relatively more.
The content of the invention
It is an object of the invention to overcome the shortcomings of prior art, there is provided a kind of decentralization high precision and safe double-wall steel
Box installing force system conversion method.
Double-wall steel suspension box installing force system conversion method of the invention, comprises the following steps：
(1) many steel pile castings are installed on the water, the circumferencial direction balanced welding of part of then being surfaced in each steel pile casting
4 brackets are connect, as the interim platform for lining of steel lifted trunk；
(2) the steel lifted trunk partitioned underplate of prefabricated completion is assembled into overall steel lifted trunk bottom on interim platform for lining
Plate；
(3) the assembled steel lifted trunk side plate on assembled good overall steel lifted trunk base plate, hangs in parallel two blocks of relative steel
Welded between case side plate laterally to support, it be up to higher than steel lifted trunk that four steel pile castings being located at steel lifted trunk side plate inwall corner is connect
The position of side plate, is allowed to be formed and increases steel pile casting, and will increase and be weldingly connected by connecting rod between steel pile casting, then will
The base pins of multiple struts are connected on each steel pile casting bottom and increase on the steel lifted trunk base plate of steel pile casting bottom surrounding simultaneously in succession
And the pre-buried shearing steel plate of polylith base plate is welded on the steel lifted trunk base plate increased around steel pile casting and steel pile casting；
(4) increase at each and be respectively mounted above steel pile casting a horizontal spandrel girder, on every two horizontal spandrel girders
One group of longitudinal Bailey beam is installed, is set parallel to each other between two groups of longitudinal Bailey beams；
(5) a upper strata transverse direction load-bearing is respectively mounted at steel lifted trunk side plate inwall corner at every group of Bailey beam two ends
Beam, a jack is respectively mounted on four upper strata transverse direction spandrel girders, and a screw thread is then passed through on each jack
Simultaneously with the hanger on steel lifted trunk side plate inwall be connected screw thread suspension rod by suspension rod, constitutes hangar system；
(6) four jack of synchronization of jacking up, steel lifted trunk is carried on the whole, by above carrying for hangar system, overcomes steel lifted trunk
Overall deadweight, the deadweight of steel lifted trunk is undertaken to be transformed into by temporary platform is undertaken by hangar system, realizes first time power system conversion
Afterwards, the bracket that steel lifted trunk bottom is increased on steel pile casting and steel pile casting is then removed；
(7) the connection valve being arranged on steel lifted trunk side plate is opened, makes the water level inside and outside steel lifted trunk consistent, by hanging system
The jack and screw thread suspension rod of system by steel lifted trunk it is slow under be put into water to setting absolute altitude；
(8) when selecting low tide water level, by the top of the multiple struts being arranged on steel lifted trunk base plate and adding for being correspondingly arranged
Steel pile casting high and steel pile casting are respectively welded connected, and the impulsive force of the deadweight of steel lifted trunk that hangar system is undertaken and wave is transformed into support
On bar, second power system conversion is realized, then remove hangar system；
(9) bottom concrete is poured under carrying out box internal water on steel lifted trunk base plate using conduit, bottom concrete
To steel lifted trunk base plate and increase the gap between steel pile casting and steel pile casting and block, after bottom concrete reaches intensity, close
Connection valve is closed, drawn water in steel lifted trunk；
(10) after the completion of drawing water, the concrete of the pre-buried shearing steel plate of chisel covering is picked, exposes pre-buried shearing steel plate, cut pre-buried
Power steel plate is welded with steel pile casting is increased, and steel lifted trunk institute's stress is transformed on pre-buried shearing steel plate by strut, realizes the 3rd
Secondary power system conversion, then cuts off strut.
Advantages of the present invention：This method easy construction, it is simple to operate, can improve efficiency of construction, transfer high precision and
Safety.
Brief description of the drawings
Fig. 1 is the structure of the steel lifted trunk power system converting system that double-wall steel suspension box installing force system conversion method of the invention is used
Schematic diagram；
Fig. 2 is the top view of the steel lifted trunk power system converting system shown in Fig. 1；
Fig. 3 is the steel lifted trunk assembly process structure diagram in the system shown in Fig. 1；
Fig. 4 is that the steel lifted trunk in the system shown in Fig. 1 pours bottom concrete process structure diagram；
Fig. 5 is the pre-buried shear plate mplifying structure schematic diagram of base plate in the structure shown in Fig. 4.
Specific embodiment
The present invention will be described in detail with specific embodiment below in conjunction with the accompanying drawings.
Double-wall steel suspension box installing force system conversion method of the invention as shown in drawings, it is comprised the following steps：
(1) many steel pile casting 5-2 are installed on the water, the circumferencial direction of part of then being surfaced in each steel pile casting 5-2
4 brackets 11 are symmetrically welded, as the interim platform for lining of steel lifted trunk；
(2) the steel lifted trunk partitioned underplate of prefabricated completion is assembled into overall steel lifted trunk base plate on interim platform for lining
8；
(3) the assembled steel lifted trunk side plate 6 on assembled good overall steel lifted trunk base plate 8, in parallel two blocks of relative steel
Welded between suspension box side sheet 6 laterally to support 15.Four steel pile casting 5-2 being located at the inwall corner of steel lifted trunk side plate 6 are connect up to
Higher than the position of steel lifted trunk side plate 6, it is allowed to be formed and increases steel pile casting 5-1.And will increase between steel pile casting 5-1 by connection
Bar 13 is weldingly connected, and the base pins of multiple struts 7 is then connected on into each steel pile casting 5-2 bottom in succession and increases steel pile casting 5-
Welded on the steel lifted trunk base plate 8 of 1 bottom surrounding and on the steel lifted trunk base plate 8 increased around steel pile casting 5-1 and steel pile casting 5-2
The pre-buried shearing steel plate 12 of polylith base plate；
(4) increase at each and a horizontal spandrel girder 9 is respectively mounted above steel pile casting 5-1, in every two horizontal load-bearing
One group of longitudinal Bailey beam 2 is installed on beam 9, is set parallel to each other between two groups of longitudinal Bailey beams 2；
(5) a upper strata transverse direction load-bearing is respectively mounted at the inwall corner of steel lifted trunk side plate 6 at every group of two ends of Bailey beam 2
Beam 10, a jack 1 is respectively mounted on four upper strata transverse direction spandrel girders 10, and one is then passed through on each jack 1
Simultaneously with the hanger 4 on the inwall of steel lifted trunk side plate 6 be connected screw thread suspension rod 3 by individual screw thread suspension rod 3, constitutes hangar system；
(6) four jack 1 of synchronization of jacking up, steel lifted trunk is carried on the whole, by above carrying for hangar system, overcomes steel lifted trunk
Overall deadweight, the deadweight of steel lifted trunk is undertaken to be transformed into by temporary platform is undertaken by hangar system, realizes first time power system conversion
Afterwards, the bracket 11 that steel lifted trunk bottom is increased on steel pile casting 5-1 and steel pile casting 5-2 is then removed；
(7) the connection valve being arranged on steel lifted trunk side plate 6 is opened, the connection valve can use ball valve or diaphragm valve,
Make water level inside and outside steel lifted trunk consistent, by the jack 1 and screw thread suspension rod 3 of hangar system by steel lifted trunk it is slow under be put into water
In to setting absolute altitude；
(8) when selecting low tide water level, by the top of the multiple struts 7 being arranged on steel lifted trunk base plate 8 be correspondingly arranged
Increase steel pile casting 5-1 and steel pile casting 5-2 and be respectively welded connected, the impulsive force of the deadweight of steel lifted trunk that hangar system is undertaken and wave
It is transformed on strut 7, realizes second power system conversion, then removes hangar system；
(9) bottom concrete 14 is poured under carrying out box internal water on steel lifted trunk base plate 8 using conduit, back cover coagulation
Native 14 pairs of steel lifted trunk base plates 8 and the gap increased between steel pile casting 5-1 and steel pile casting 5-2 block, bottom concrete 14
After reaching design strength, connection valve is closed, drawn water in steel lifted trunk；
(10) after the completion of drawing water, the concrete of the pre-buried shearing steel plate 12 of chisel covering is picked, exposes pre-buried shearing steel plate 12, will be pre-
Bury shearing steel plate 12 to be welded with steel pile casting 5-1 is increased, steel lifted trunk institute's stress is transformed into pre-buried shearing steel plate 12 by strut 7
On, realize that third time power system changes, then cut off strut 7.
Embodiment 1
(1) many steel pile casting 5-2 are installed on the water, the circumferencial direction of part of then being surfaced in each steel pile casting 5-2
4 brackets 11 are symmetrically welded, as the interim platform for lining of steel lifted trunk；
(2) the steel lifted trunk partitioned underplate of prefabricated completion is assembled into overall steel lifted trunk base plate on interim platform for lining
8；
(3) the assembled steel lifted trunk side plate 6 on assembled good overall steel lifted trunk base plate 8, in parallel two blocks of relative steel
Welded between suspension box side sheet 6 laterally to support 15.Four steel pile casting 5-2 being located at the inwall corner of steel lifted trunk side plate 6 are connect up to
Higher than the position of steel lifted trunk side plate 6, it is allowed to be formed and increases steel pile casting 5-1.And will increase between steel pile casting 5-1 by connection
Bar 13 is weldingly connected, and the base pins of multiple struts 7 is then connected on into each steel pile casting 5-2 bottom in succession and increases steel pile casting 5-
Welded on the steel lifted trunk base plate 8 of 1 bottom surrounding and on the steel lifted trunk base plate 8 increased around steel pile casting 5-1 and steel pile casting 5-2
The pre-buried shearing steel plate 12 of polylith base plate；
(4) increase at each and a horizontal spandrel girder 9 is respectively mounted above steel pile casting 5-1, in every two horizontal load-bearing
One group of longitudinal Bailey beam 2 is installed on beam 9, is set parallel to each other between two groups of longitudinal Bailey beams 2；
(5) a upper strata transverse direction load-bearing is respectively mounted at the inwall corner of steel lifted trunk side plate 6 at every group of two ends of Bailey beam 2
Beam 10, a jack 1 is respectively mounted on four upper strata transverse direction spandrel girders 10, and one is then passed through on each jack 1
Simultaneously with the hanger 4 on the inwall of steel lifted trunk side plate 6 be connected screw thread suspension rod 3 by individual screw thread suspension rod 3, constitutes hangar system；
(6) four jack 1 of synchronization of jacking up, steel lifted trunk is carried on the whole, by above carrying for hangar system, overcomes steel lifted trunk
Overall deadweight, the deadweight of steel lifted trunk is undertaken to be transformed into by temporary platform is undertaken by hangar system, realizes first time power system conversion
Afterwards, the bracket 11 that steel lifted trunk bottom is increased on steel pile casting 5-1 and steel pile casting 5-2 is then removed；
(7) ball valve being arranged on steel lifted trunk side plate 6 is opened, makes the water level inside and outside steel lifted trunk consistent, by hangar system
Jack 1 and screw thread suspension rod 3 by steel lifted trunk it is slow under be put into water；
(8) when selecting low tide water level, by the top of the multiple struts 7 being arranged on steel lifted trunk base plate 8 be correspondingly arranged
Increase steel pile casting 5-1 and steel pile casting 5-2 and be respectively welded connected, the impulsive force of the deadweight of steel lifted trunk that hangar system is undertaken and wave
It is transformed on strut 7, realizes second power system conversion, then removes hangar system；
(9) bottom concrete 14 is poured under carrying out box internal water on steel lifted trunk base plate 8 using conduit, back cover coagulation
Native 14 pairs of steel lifted trunk base plates 8 and the gap increased between steel pile casting 5-1 and steel pile casting 5-2 block, bottom concrete 14
After reaching design strength, ball valve is closed, drawn water in steel lifted trunk；
(10) after the completion of drawing water, the concrete of the pre-buried shearing steel plate 12 of chisel covering is picked, exposes pre-buried shearing steel plate 12, will be pre-
Bury shearing steel plate 12 to be welded with steel pile casting 5-1 is increased, steel lifted trunk institute's stress is transformed into pre-buried shearing steel plate 12 by strut 7
On, realize that third time power system changes, then cut off strut 7.
Using this method easy construction, high precision is transferred.
Claims (1)
1. double-wall steel suspension box installing force system conversion method, it is characterised in that it is comprised the following steps：
(1) many steel pile castings are installed on the water, are then symmetrically welded 4 in the surface circumferencial direction of part of each steel pile casting
Bracket, as the interim platform for lining of steel lifted trunk；
(2) the steel lifted trunk partitioned underplate of prefabricated completion is assembled into overall steel lifted trunk base plate on interim platform for lining；
(3) the assembled steel lifted trunk side plate on assembled good overall steel lifted trunk base plate, in parallel two pieces of relative steel lifted trunk sides
Welded between plate laterally to support, it be up to higher than steel lifted trunk side plate that four steel pile castings being located at steel lifted trunk side plate inwall corner is connect
Position, be allowed to be formed and increase steel pile casting, and will increase and be weldingly connected by connecting rod between steel pile casting, then by multiple
The base pins of strut be connected on each steel pile casting bottom in succession and increase on the steel lifted trunk base plate of steel pile casting bottom surrounding and
Increase the welding pre-buried shearing steel plate of polylith base plate on the steel lifted trunk base plate around steel pile casting and steel pile casting；
(4) increase at each and be respectively mounted above steel pile casting a horizontal spandrel girder, installed on every two horizontal spandrel girders
One group of longitudinal Bailey beam, is set parallel to each other between two groups of longitudinal Bailey beams；
(5) a upper strata transverse direction spandrel girder is respectively mounted at steel lifted trunk side plate inwall corner at every group of Bailey beam two ends,
A jack is respectively mounted on four upper strata transverse direction spandrel girders, then a screw thread suspension rod is passed through simultaneously on each jack
Screw thread suspension rod is connected with the hanger on steel lifted trunk side plate inwall, hangar system is constituted；
(6) four jack of synchronization of jacking up, steel lifted trunk is carried on the whole, by above carrying for hangar system, overcomes steel lifted trunk entirety
Deadweight, the deadweight of steel lifted trunk is undertaken to be transformed into by temporary platform is undertaken by hangar system, after realizing first time power system conversion, so
The bracket that steel lifted trunk bottom is increased on steel pile casting and steel pile casting is removed afterwards；
(7) the connection valve being arranged on steel lifted trunk side plate is opened, makes the water level inside and outside steel lifted trunk consistent, by hangar system
Jack and screw thread suspension rod by steel lifted trunk it is slow under be put into water to setting absolute altitude；
(8) select low tide water level when, by be arranged on steel lifted trunk base plate on multiple struts top be correspondingly arranged increase steel
Casing and steel pile casting are respectively welded connected, and the impulsive force of the deadweight of steel lifted trunk that hangar system is undertaken and wave is transformed into strut
On, second power system conversion is realized, then remove hangar system；
(9) bottom concrete is poured under carrying out box internal water on steel lifted trunk base plate using conduit, and bottom concrete is to steel
Box base plate and the gap increased between steel pile casting and steel pile casting are blocked, after bottom concrete reaches intensity, the company of closing
Port valve door, drawn water in steel lifted trunk；
(10) after the completion of drawing water, the concrete of the pre-buried shearing steel plate of chisel covering is picked, exposes pre-buried shearing steel plate, by pre-buried shearing steel
Plate is welded with steel pile casting is increased, and steel lifted trunk institute's stress is transformed on pre-buried shearing steel plate by strut, realizes third time power
System's conversion, then cuts off strut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710054347.8A CN106869150A (en) | 2017-01-24 | 2017-01-24 | Double-wall steel suspension box installing force system conversion method |
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|---|---|---|---|
| CN201710054347.8A CN106869150A (en) | 2017-01-24 | 2017-01-24 | Double-wall steel suspension box installing force system conversion method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295982A (en) * | 2018-11-15 | 2019-02-01 | 中国二十二冶集团有限公司 | The construction method of binder steel jacket box in water |
| CN109518704A (en) * | 2018-11-20 | 2019-03-26 | 中国建筑第四工程局有限公司 | A kind of load system transform system and conversion method integrally transferred for steel lifted trunk |
| CN110952579A (en) * | 2019-10-23 | 2020-04-03 | 中建路桥集团有限公司 | Double-wall steel hanging box cofferdam and construction method thereof |
| CN113529763A (en) * | 2021-07-01 | 2021-10-22 | 中铁十九局集团华东工程有限公司 | Method for constructing sea area shoal cushion cap by utilizing reinforced concrete combined steel cofferdam |
| CN113653089A (en) * | 2021-08-25 | 2021-11-16 | 中铁广州工程局集团深圳工程有限公司 | Construction method of underwater large-volume steel sleeve box bearing platform |
| CN114855839A (en) * | 2022-05-26 | 2022-08-05 | 中交第二航务工程局有限公司 | Steel suspension box applied to hydraulic structure and construction method thereof |
| CN116464081A (en) * | 2023-06-19 | 2023-07-21 | 中国建筑第六工程局有限公司 | Double-wall steel suspended box cofferdam hoisting construction method under high tidal range |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295982A (en) * | 2018-11-15 | 2019-02-01 | 中国二十二冶集团有限公司 | The construction method of binder steel jacket box in water |
| CN109518704A (en) * | 2018-11-20 | 2019-03-26 | 中国建筑第四工程局有限公司 | A kind of load system transform system and conversion method integrally transferred for steel lifted trunk |
| CN110952579A (en) * | 2019-10-23 | 2020-04-03 | 中建路桥集团有限公司 | Double-wall steel hanging box cofferdam and construction method thereof |
| CN113529763A (en) * | 2021-07-01 | 2021-10-22 | 中铁十九局集团华东工程有限公司 | Method for constructing sea area shoal cushion cap by utilizing reinforced concrete combined steel cofferdam |
| CN113653089A (en) * | 2021-08-25 | 2021-11-16 | 中铁广州工程局集团深圳工程有限公司 | Construction method of underwater large-volume steel sleeve box bearing platform |
| CN114855839A (en) * | 2022-05-26 | 2022-08-05 | 中交第二航务工程局有限公司 | Steel suspension box applied to hydraulic structure and construction method thereof |
| CN116464081A (en) * | 2023-06-19 | 2023-07-21 | 中国建筑第六工程局有限公司 | Double-wall steel suspended box cofferdam hoisting construction method under high tidal range |
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