CN107604933B - Leaning type steel sleeve cofferdam - Google Patents
Leaning type steel sleeve cofferdam Download PDFInfo
- Publication number
- CN107604933B CN107604933B CN201711049588.XA CN201711049588A CN107604933B CN 107604933 B CN107604933 B CN 107604933B CN 201711049588 A CN201711049588 A CN 201711049588A CN 107604933 B CN107604933 B CN 107604933B
- Authority
- CN
- China
- Prior art keywords
- steel
- connection
- guide device
- plate
- steel sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model provides an adherence type steel bushing box cofferdam, relates to bridge construction technical field, includes the steel bushing box that is connected with existing structure thing, existing structure with be provided with the connector device between the steel bushing box, the connector device include with steel bushing box fixed connection's connection guider and the picture peg device that removes in connecting guider; the plugboard device fills a gap between the connection guide device and the existing structure and forms a pouring space. The semi-enclosed steel sleeve box structure solves the construction problem of the steel sleeve box cofferdam through the joint device.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to an abutting type steel sleeve box cofferdam.
Background
The prior art steel sleeve cofferdam is a common technical measure for construction of underwater structures, and the common structural form is square, round or other closed structures, but when the underwater structures are close to the existing structures, the space size between the two structures is insufficient, and the steel sleeve cannot form a closed structural form, the construction of the steel sleeve cofferdam cannot be completed according to the self-closed structure.
The utility model discloses a steel sleeve case cofferdam in the publication of publication No. CN106638639A, including cofferdam left side board and cofferdam right side board, cofferdam left side board and cofferdam right side board pass through tenon joint and connect, and cofferdam left side board includes wallboard, yang Suntou baffle and Yang Suntou draw-in groove, and Yang Suntou baffle is the "several" font of evagination, including positive tenon roof portion and positive tenon curb plate portion, the projecting end that is located the protruding side of Yang Suntou baffle of Yang Suntou draw-in groove forms the fusiform. The cofferdam right side board includes wallboard, female tenon baffle, female tenon fixture block and fixed plate, and female tenon baffle is "nearly" font of indent, including female tenon bottom plate portion and female tenon curb plate portion, and female tenon fixture block and Yang Suntou draw-in groove cooperation to install on female tenon curb plate portion through the spring, the fixed plate is connected with female tenon curb plate portion, is formed with the fixed orifices on female tenon fixture block, is formed with on the fixed plate with fixed orifices complex fixed arch, when female tenon fixture block and Yang Suntou draw-in groove card, fixed arch can insert the fixed arch of locking in the fixed orifices.
Disclosure of Invention
The semi-enclosed steel box structure solves the construction problem of the steel box cofferdam through a joint device.
The technical aim of the invention is realized by the following technical scheme: the abutting type steel sleeve box cofferdam comprises a steel sleeve box body connected with an existing structure, wherein a joint device is arranged between the existing structure and the steel sleeve box body, and comprises a connection guide device fixedly connected with the steel sleeve box body and a plugboard device moving in the connection guide device; the plugboard device fills a gap between the connection guide device and the existing structure and forms a pouring space.
Preferably, the connection guiding device comprises a connection base plate connected with the steel sleeve box body, at least two guide rail structures arranged on the connection base plate and a connection steel plate.
Preferably, the connection steel plate includes a first connection steel plate for reinforcing connection of the connection base plate and the steel box body, and a second connection steel plate for reinforcing connection of the connection base plate and the rail structure.
Preferably, the board inserting device comprises a steel board and a supporting member connected with the steel board, and the steel board is transversely moved by the connecting guide device to be maximally abutted with the existing structure.
Preferably, a conduit for pouring concrete and a concrete block are arranged in the pouring space.
Preferably, the pouring space has a sealing structure comprising a vertical seal arranged between the connection guide and the board inserting device, and a horizontal seal at the bottom of the connection guide and the board inserting device.
Preferably, the horizontal sealing member is a soft mold bag, the soft mold bag is provided with a plurality of bottom surfaces which are paved on the connecting guide device and the plugboard device, and the soft mold bag is paved on the bottom surfaces to form a horizontal plane.
Preferably, the vertical sealing member is a soft rubber rod, and the soft rubber rod is embedded in the joint of the connection guide device and the plugboard device in the pouring space.
Preferably, the soft rubber rod comprises a hard central rod, a rubber layer arranged outside the hard central rod and a gauze layer arranged outside the rubber layer, wherein the thickness of the rubber layer is 1-2cm, and the thickness of the gauze layer is 2-3cm.
As a preferred method of welding the joint means of the above-described abutting type steel box cofferdam, characterized in that,
step one: processing the welding surface of the steel plate to enable the welding surface to be a gradient surface; the angle α between the two grooves is 60 °.
Step two: the bottom of the welding surface of the steel plate is propped against;
step three: two ends of a welding joint of two steel plates are provided with arc striking plates;
step four: preheating the steel plates before welding, wherein the preheating temperature of the steel plates before welding is 100-130 degrees, and welding two steel plates by using narrow-gap submerged arc automatic welding, wherein the welding current of the narrow-gap submerged arc automatic welding is 370-460A; the voltage is 25-35V; the welding speed is 18-25 m/h; the welding temperature is 230-270 degrees; when welding, each time a certain distance is welded, checking whether the welding bead has defects or not, and if so, repairing in time.
The beneficial technical effects of the invention are as follows:
the joint device can effectively isolate water, is convenient to manufacture, simple in structure and simple in construction process, and when the cofferdam is dismantled, the joint device can realize the loosening between joint concrete and the existing structure by only applying a certain tensile force without the work of submergence, dismantling or cutting and the like.
The sealing structure can ensure that external liquid cannot flow into the cofferdam, and the liquid in the cofferdam cannot flow out of the cofferdam, and the whole pouring body is neat in shape, so that the whole structure is high in strength.
Drawings
FIG. 1 is a schematic illustration of the present invention;
FIG. 2 is a schematic illustration of the placement of the present invention;
FIG. 3 is a schematic illustration of the present invention in perfusion;
FIG. 4 is a schematic representation of the invention after infusion;
FIG. 5 is a schematic illustration of the present invention with the addition of a sealing structure;
in fig. 1, 2, 3, 4 and 5, 1-existing structure, 2-steel-jacketed-box, 3-joint device, 4-connection guide device, 5-board inserting device, 41-connection base board, 42-guide rail structure, 43-connection steel plate, 51-steel board inserting, 52-support member.
Detailed Description
The abutting type steel sleeve cofferdam as shown in fig. 1, 2, 3 and 4 comprises a steel sleeve box body 2 connected with an existing structure 1, a joint device 3 is arranged between the existing structure 1 and the steel sleeve box body 2, and the joint device 3 comprises a connection guide device 4 fixedly connected with the steel sleeve box body 2 and a plugboard device 5 moving in the connection guide device 4; the board inserting device 5 fills the gap between the connection guide device 4 and the existing structure 1 and forms a pouring space.
The connection guide 4 includes a connection base 41 connected to the steel sleeve housing 2, two rail structures 42 provided on the connection base 41, and a connection steel plate 43. Each of the rail structures 42 has two steel plates, an inner steel plate located in the pouring space and an outer steel plate located outside the pouring space, and the inner steel plates in the two rail structures 42 are connected by a fixing structure. The connection steel plate 43 includes a first connection steel plate that reinforces the connection base plate 41 and the steel jacket case 2, and a second connection steel plate that reinforces the connection base plate 41 and the rail structure 42. The cooperation of the fixing structure and the connecting steel plate 43 makes the whole connecting guide 4 have enough structural strength to support the filling of the concrete blocks.
The welding method between the guide device 4 and the steel sleeve box body 2 and each part inside the steel sleeve box body is as follows:
step one: processing the welding surface of the steel plate to enable the welding surface to be a gradient surface; the angle α between the two grooves is 60 °.
Step two: the bottom of the welding surface of the steel plate is propped against;
step three: two ends of a welding joint of two steel plates are provided with arc striking plates;
step four: preheating the steel plates before welding, wherein the preheating temperature of the steel plates before welding is 100-130 degrees, and welding two steel plates by using narrow-gap submerged arc automatic welding, wherein the welding current of the narrow-gap submerged arc automatic welding is 370-460A; the voltage is 25-35V; the welding speed is 18-25 m/h; the welding temperature is 230-270 degrees; when welding, each time a certain distance is welded, checking whether the welding bead has defects or not, and if so, repairing in time.
The board inserting device 5 comprises a steel board inserting 51 and supporting members 52 connected with the steel board inserting 51, the supporting members 52 are vertically arranged at a certain interval, and the steel board inserting 51 transversely moves on the connecting guide device 4 to be maximally abutted with the existing structure 1. The welding between the steel insert plate 51 and the supporting member 52 is performed by spot welding at a portion to be welded, and the insert plate device 5 is not required to have high structural strength as the aforementioned connection guide 4 because it is finally buried by concrete.
When in implementation, the connecting guide device 4 is placed close to the existing structure 1 at a certain distance, then the inserting plate device 5 is installed in the connecting guide device 4 in a lifting mode and the like, the inserting plate device 5 is vertically lowered to a certain height, then the inserting plate device 5 is moved along the direction to be closed, so that the inserting plate device 5 is maximally abutted against the existing structure 1, a guide pipe for filling concrete is arranged in a filling space, underwater micro-expansion concrete is filled through a guide pipe method, the guide pipe is lifted while being filled, and the concrete is closed after being solidified.
As shown in fig. 5, a sealing structure can be added in the pouring space in the above embodiment, wherein the sealing structure comprises a vertical sealing element arranged between the connection guide device 4 and the plug board device 5, and a horizontal sealing element arranged at the bottom of the connection guide device 4 and the plug board device 5.
The horizontal sealing piece is a soft mould bag, the soft mould bag is provided with a plurality of bottom surfaces which are fully connected with the guide device 4 and the plugboard device 5, and the soft mould bag is paved into a horizontal plane on the bottom surfaces. The vertical sealing piece is a soft rubber rod which is embedded in the joint of the connecting guide device 4 and the plugboard device 5 in the pouring space; the soft rubber rod comprises a hard central rod, a rubber layer arranged outside the hard central rod and a gauze layer arranged outside the rubber layer, wherein the thickness of the rubber layer is 1cm, and the thickness of the gauze layer is 2cm.
Before the connection guide device 4 and the plugboard device 5 are arranged, a soft mould bag is paved on the bottom surface to form a horizontal plane, and a series of subsequent stir-frying operations are facilitated on the horizontal plane. After the steel insert plate 51 is transversely moved by the connection guide device 4 and is maximally abutted against the existing structure 1, a soft rubber rod is embedded at the joint of the connection guide device 4 and the insert plate device 5 in the pouring space.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (2)
1. The abutting type steel sleeve cofferdam comprises a steel sleeve box body (2) connected with an existing structure (1), and is characterized in that a joint device (3) is arranged between the existing structure (1) and the steel sleeve box body (2), and the joint device (3) comprises a connection guide device (4) fixedly connected with the steel sleeve box body (2) and a plugboard device (5) moving in the connection guide device (4);
a pouring space is formed between the connection guide device (4) and the existing structure (1), and the plugboard device (5) is contained in the pouring space;
the connection guide device (4) comprises a connection base plate (41) connected with the steel sleeve box body (2), at least two guide rail structures (42) arranged on the connection base plate (41) and a connection steel plate (43);
the connecting steel plate (43) comprises a first connecting steel plate for reinforcing connection of the connecting base plate (41) and the steel sleeve box body (2) and a second connecting steel plate for reinforcing connection of the connecting base plate (41) and the guide rail structure (42);
the inserting plate device (5) comprises a steel inserting plate (51) and a supporting member (52) connected with the steel inserting plate (51), and the steel inserting plate (51) transversely moves along the connecting guide device (4) to be maximally abutted with the existing structure (1);
a guide pipe for pouring concrete and a concrete block are arranged in the pouring space;
the pouring space is provided with a sealing structure, the sealing structure comprises a vertical sealing piece arranged between the connecting guide device (4) and the plugboard device (5), and the connecting guide device (4) and a horizontal sealing piece at the bottom of the plugboard device (5);
the horizontal sealing piece is a soft mold bag, the soft mold bag is provided with a plurality of bottom surfaces which are paved with the connecting guide device (4) and the plugboard device (5), and the soft mold bag is paved on the bottom surfaces to form a horizontal surface;
the vertical sealing piece is a soft rubber rod which is embedded in the joint of the connecting guide device (4) and the plugboard device (5) in the pouring space.
2. The abutting type steel box cofferdam according to claim 1, wherein the soft rubber rod comprises a hard central rod, a rubber layer arranged outside the hard central rod and a gauze layer arranged outside the rubber layer, the thickness of the rubber layer is 1-2cm, and the thickness of the gauze layer is 2-3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049588.XA CN107604933B (en) | 2017-10-31 | 2017-10-31 | Leaning type steel sleeve cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049588.XA CN107604933B (en) | 2017-10-31 | 2017-10-31 | Leaning type steel sleeve cofferdam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107604933A CN107604933A (en) | 2018-01-19 |
| CN107604933B true CN107604933B (en) | 2023-07-04 |
Family
ID=61084179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711049588.XA Active CN107604933B (en) | 2017-10-31 | 2017-10-31 | Leaning type steel sleeve cofferdam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107604933B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894238B (en) * | 2018-03-30 | 2020-07-28 | 上海二十冶建设有限公司 | Device for efficiently forming broken stone cofferdam and using method thereof |
| CN109469079A (en) * | 2018-10-31 | 2019-03-15 | 上海市政工程设计研究总院（集团）有限公司 | A kind of cofferdam connection structure |
| CN113481821B (en) * | 2021-07-27 | 2022-08-09 | 武大巨成结构股份有限公司 | Overhaul device and method for inner bottom surface of aqueduct |
| CN113774817B (en) * | 2021-09-15 | 2023-02-28 | 舟山长宏国际船舶修造有限公司 | Assembled highway bridge rapid construction equipment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202323971U (en) * | 2011-11-18 | 2012-07-11 | 钟爱民 | Connection mode of cofferdam and bearing platform |
| CN202787285U (en) * | 2012-08-16 | 2013-03-13 | 中交第二航务工程局有限公司 | Prefabricated cushion cap underwater waterstop device |
| CN102922102A (en) * | 2012-10-10 | 2013-02-13 | 浙江国盛钢结构有限公司 | Steel plate welding method |
| CN103266761A (en) * | 2013-06-04 | 2013-08-28 | 曾庆通 | Construction stair extensible step formwork and manufacturing method thereof |
| CN204781923U (en) * | 2015-07-03 | 2015-11-18 | 张战锋 | Combined material template of stretching out and drawing back |
| CN205934944U (en) * | 2016-06-20 | 2017-02-08 | 中国铁建港航局集团有限公司 | There is not back cover concrete steel and concrete composite suspension box -cofferdam structure under water |
| CN106545023A (en) * | 2016-11-25 | 2017-03-29 | 南京东至南工程技术有限公司 | For the steel cofferdam device and method that bridge pier is reinforced under water |
| CN107217680B (en) * | 2017-05-16 | 2022-05-24 | 中交武汉港湾工程设计研究院有限公司 | Device for reducing thickness of bottom sealing concrete of steel suspension box cofferdam and construction method |
| CN207405639U (en) * | 2017-10-31 | 2018-05-25 | 中铁十六局集团第三工程有限公司 | One kind reclines formula steel boxed cofferdam |
-
2017
- 2017-10-31 CN CN201711049588.XA patent/CN107604933B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107604933A (en) | 2018-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107604933B (en) | Leaning type steel sleeve cofferdam | |
| CN103669562B (en) | The construction method of cantilever bay window board concrete monobloc cast structure | |
| CN205876350U (en) | Pin -connected panel tunnel invert structure | |
| CN103374880B (en) | The connecting structure of a kind of precast pier and cushion cap and dock construction method thereof | |
| CN112900450A (en) | Rotary drilling and full-rotation combined back-inserting method positioning method for steel pipe structure pile by reverse construction method | |
| CN104389268A (en) | Steel tower column with positioning structure and hoisting construction method thereof | |
| CN203756193U (en) | Steel end template of dual-hinged overturning-applicable tunnel lining trolley | |
| CN205557302U (en) | Section section precast box girder's a seam connection structure is assembled to short line method | |
| CN203866831U (en) | Telescopic splicing guide frame for large-diameter steel protecting cylinder | |
| CN105370032B (en) | Construction method for air bag type concrete project deformation joint water stop cavity mold | |
| CN105951891B (en) | With raised sealing swaging die vertical with the concrete works movement joint of reinforcing fiber | |
| CN106017607A (en) | Upward floating monitoring system of model board trolley in self-compacting concrete and monitoring method thereof | |
| CN204298736U (en) | A kind of steel tower column with location structure | |
| CN204156471U (en) | Power cable pipe | |
| CN207405639U (en) | One kind reclines formula steel boxed cofferdam | |
| CN105568927A (en) | Construction method of water bag type concrete engineering deformation joint water stop cavity die | |
| CN102797264B (en) | Construction method for joints of underground continuous walls | |
| CN105484201A (en) | Manufacturing method for cavity die framework of concrete engineering | |
| CN203755682U (en) | Secondary pouring form board constructing structure for small opening of concrete structure floor slab | |
| CN202298870U (en) | Inspection well with fixed ladder stands | |
| CN207331733U (en) | A kind of concrete column leg structure | |
| CN203019582U (en) | Mold core of shaft of inspection well | |
| CN204080870U (en) | A kind of concrete work swaging die skeleton | |
| CN205475319U (en) | Prefabricated formula city piping lane | |
| CN204080871U (en) | A kind of concrete work swaging die air bag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |