CN109706948A - The connecting structure and construction method of steel cofferdam and concrete open caisson - Google Patents
The connecting structure and construction method of steel cofferdam and concrete open caisson Download PDFInfo
- Publication number
- CN109706948A CN109706948A CN201910027119.0A CN201910027119A CN109706948A CN 109706948 A CN109706948 A CN 109706948A CN 201910027119 A CN201910027119 A CN 201910027119A CN 109706948 A CN109706948 A CN 109706948A
- Authority
- CN
- China
- Prior art keywords
- open caisson
- groove
- concrete open
- steel cofferdam
- concrete
- 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.)
- Pending
Links
Abstract
The invention discloses the connecting structure and construction method of a kind of steel cofferdam and concrete open caisson, it is related to bridge Open caisson construction technology field, including steel cofferdam and concrete open caisson, steel cofferdam includes connected inside panel and exterior panel, and inside panel is connected with exterior panel by reinforcer；The top of concrete open caisson is equipped with groove, and inside panel is connect with the first built-in fitting being embedded at the top of concrete open caisson；Exterior panel supports on the bottom surface of groove, and connect with the second built-in fitting at the top of open caisson and being located at below groove is embedded in；Exterior panel and groove are reserved with the first gap between the cell wall on the outside of open caisson, be filled with sealing material in the first gap.The present invention can effectively prevent the connecting portion leak of steel cofferdam and concrete open caisson.
Description
Technical field
The present invention relates to bridge Open caisson construction technology fields, and in particular to a kind of connection of steel cofferdam and concrete open caisson
Construction and construction method.
Background technique
The bridge well foundation built in great rivers is arranged at the top of concrete open caisson and connects due to crossing the needs of flood
High steel cofferdam carrys out water blocking, to realize that flood period continuously constructs.
The connection type of conventional steel cofferdam and concrete open caisson is pre-buried steel member, steel directly at the top of concrete open caisson
Cofferdam bottom and built-in fitting are welded to connect, but due to the effect of welding defect and flood period flow force, connecting portion is usually opened
Leak is split, and sealing construction is difficult after leak, effect is unobvious, seriously affects construction and safety.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of steel cofferdam and concrete open caissons
Connecting structure and construction method, the connecting portion leak of steel cofferdam and concrete open caisson can be effectively prevent.
To achieve the above objectives, the technical solution adopted by the present invention is that: a kind of connection structure of steel cofferdam and concrete open caisson
It makes, comprising:
Steel cofferdam comprising connected inside panel and exterior panel；
Concrete open caisson, top be equipped with groove, the inside panel be embedded at the top of the concrete open caisson first
Built-in fitting connection；The exterior panel supports on the bottom surface of the groove, and be embedded at the top of the concrete open caisson and position
The second built-in fitting connection below the groove；The exterior panel and cell wall of the groove on the outside of concrete open caisson
Between be reserved with the first gap, sealing material is filled in first gap.
Based on the above technical solution, the exterior panel and cell wall of the groove on the inside of concrete open caisson
Between be reserved with the second gap, fill concrete or sealing material in second gap.
Based on the above technical solution, the inside panel is connected with exterior panel by reinforcer.
Based on the above technical solution, the cross section of the groove is in inverted trapezoidal, and the cell wall on the outside of open caisson is
Vertical edge, the vertical edge and open caisson outer edge reserve scheduled distance.
Based on the above technical solution, the gap width between the exterior panel and the vertical edge is not less than
3cm, and it is not more than 10cm.
Based on the above technical solution, cell wall of the groove on the inside of concrete open caisson is bevel edge, described oblique
The inclination angle on side is not more than 45 °.
Based on the above technical solution, the depth of the groove is not less than 15cm, and is not more than 30cm.
Based on the above technical solution, the width of the groove slot bottom is not less than 20cm, and is not more than 40cm.
It is an object of the invention to also provide a kind of construction method of the connecting structure of steel cofferdam and concrete open caisson, packet
Include following steps:
Groove is set at the top of concrete open caisson；
First built-in fitting is set at the top of concrete open caisson, at the top of concrete open caisson and is located at below groove and is arranged the
Two built-in fittings；
The inside panel of steel cofferdam connect with the first built-in fitting, exterior panel is supported in the bottom surface of groove by prefabricated steel cofferdam
It above and with the second built-in fitting connect, while reserving first of exterior panel and groove between the cell wall on the outside of concrete open caisson
Gap, and sealing material is filled in the first gap.
Based on the above technical solution, cell wall of the reserved exterior panel and groove on the outside of concrete open caisson it
Between the first gap when, reserve the second gap of exterior panel and groove between the cell wall on the inside of concrete open caisson, second
Casting concrete or sealing material in gap.
Compared with the prior art, the advantages of the present invention are as follows: the connection structure of steel cofferdam and concrete open caisson of the invention
It makes, is equipped with groove at the top of concrete open caisson, exterior panel is connect with the second built-in fitting, and exterior panel and groove are outside open caisson
It is reserved with the first gap between the cell wall of side, is filled with sealing material in the first gap, sealing material is filled in gap, is increased
The permeation path length of water is added, the connecting portion leak of steel cofferdam and concrete open caisson can be effectively prevent.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the connecting structure facade of steel cofferdam and concrete open caisson in the embodiment of the present invention；
Fig. 2 is the partial enlargement diagram of the connecting portion of steel cofferdam and concrete open caisson in the embodiment of the present invention；
Fig. 3 is the A-A direction view of the connecting portion facade of steel cofferdam and concrete open caisson in the embodiment of the present invention；
Fig. 4 is the B-B direction view of the connecting portion facade of steel cofferdam and concrete open caisson in the embodiment of the present invention；
In figure: 1, steel cofferdam；11, inside panel；12, exterior panel；13, reinforcer；2, concrete open caisson；21, groove；22,
First built-in fitting；23, the second built-in fitting；24, the first gap；25, the second gap；3, sealing material.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to figure 1 and figure 2, the embodiment of the present invention provides the connecting structure of a kind of steel cofferdam and concrete open caisson,
It include: steel cofferdam 1 and concrete open caisson 2, steel cofferdam 1 includes connected inside panel 11 and exterior panel 12, shown in Figure 3, work
For optional scheme, inside panel 11 and exterior panel 12 are connected by reinforcer 13；It is shown in Figure 4, the top of concrete open caisson 2
Portion is equipped with groove 21, and inside panel 11 is connect with the first built-in fitting 22 for being embedded in 2 top of concrete open caisson；Exterior panel 12 supports
On the bottom surface of groove 21, and the second built-in fitting 23 with 2 top of concrete open caisson is embedded in and positioned at 21 lower section of groove connects
It connects；Exterior panel 12 and groove 21 are reserved with the first gap 24, the first gap 24 between the cell wall in 2 outside of concrete open caisson
It is interior to be filled with sealing material 3.
Compared with prior art, the connecting structure of the steel cofferdam of the embodiment of the present invention and concrete open caisson, in concrete
The top of open caisson 2 is equipped with groove 21, and exterior panel 12 is connect with the second built-in fitting 23, and exterior panel 12 and groove 21 are close to concrete
It is reserved with the first gap 24 between the cell wall in 2 outside of open caisson, is filled with sealing material 3 in the first gap 24, sealing material 3 is filled out
It fills in gap, increases the permeation path length of water, water-stagnating effect is good.In addition, sealing material 3 is first of sealing, outer wall
It is second sealing that plate 12 is connect with the second built-in fitting 23, and dual-seal can effectively prevent steel cofferdam 1 and concrete open caisson 2
Connecting portion leak.
As preferred embodiment, exterior panel 12 and groove 21 are reserved between the cell wall of 2 inside of concrete open caisson
There is the second gap 25, casting concrete in the second gap 25 can also fill sealing material 3, three seals be formed, into one
Step improves the water-stagnating effect of the connecting portion of steel cofferdam 1 and concrete open caisson 2.
As preferred embodiment, the cross section of groove 21 is in inverted trapezoidal, the cell wall close to 2 outside of concrete open caisson
For vertical edge, vertical edge and 2 outer edge of concrete open caisson reserve scheduled distance, help to arrange 2 outside steel of concrete open caisson
Muscle.Gap width between exterior panel 12 and vertical edge is not less than 3cm, and is not more than 10cm, and sealing material 3 has microdilatancy
Elasticity, suitable bulk facilitate sealing material 3 and fit closely with groove 21 and exterior panel 12, improve water-stagnating effect.It is recessed
Cell wall of the slot 21 close to 2 inside of concrete open caisson is bevel edge, and the inclination angle of bevel edge is not more than 45 °, facilitates exterior panel 12 along inclined-plane
It slides into groove 21, is easily installed and positioned.Meanwhile suitable bulk, facilitate exterior panel 12 and the second built-in fitting 23 to connect
It connects, it helps the quality after detection connection.
As preferred embodiment, the depth of groove 21 is not less than 15cm, and is not more than 30cm, 21 slot bottom of groove
Width is not less than 20cm, and is not more than 40cm, suitable bulk, helps to install built-in fitting, while also contributing to will be outer
Siding 12 is connect with the second built-in fitting 23.
The embodiment of the present invention also provides a kind of construction method of the connecting structure of steel cofferdam and concrete open caisson, referring to Fig. 1
It is shown, comprising the following steps:
Groove 21 is arranged in step S1 at the top of concrete open caisson 2；
The first built-in fitting 22 is arranged in step S2 at the top of concrete open caisson 2, at 2 top of concrete open caisson and is located at groove
The second built-in fitting 23 is arranged in 21 lower sections；
The inside panel 11 of steel cofferdam 1 is connect, by exterior panel 12 by step S3, prefabricated steel cofferdam 1 with the first built-in fitting 22
It supports on the bottom surface of groove 21 and is connect with the second built-in fitting 23, while reserved exterior panel 12 and groove 21 are close to concrete
The first gap 24 between the cell wall in 2 outside of open caisson, and sealing material 3 is filled in the first gap 24.
Compared with prior art, the construction party of the connecting structure of the steel cofferdam and concrete open caisson of the embodiment of the present invention
Method is equipped with groove 21 at the top of concrete open caisson 2, and exterior panel 12 is connect with the second built-in fitting 23, exterior panel 12 and groove 21
It is reserved with the first gap 24 between the cell wall in 2 outside of concrete open caisson, is filled with sealing material 3 in the first gap 24, only
Water material 3 is filled in gap, increases the permeation path length of water, 3 working environment of sealing material is good, and water-stagnating effect is good.This
Outside, sealing material 3 is first of sealing, and it is second sealing, dual-seal, energy that exterior panel 12 is connect with the second built-in fitting 23
Enough it effectively prevent the connecting portion leak of steel cofferdam 1 Yu concrete open caisson 2.
As preferred embodiment, in step S3, reserved exterior panel 12 with groove 21 outside concrete open caisson 2
When the first gap 24 between the cell wall of side, exterior panel 12 and groove 21 are reserved between the cell wall of 2 inside of concrete open caisson
The second gap 25,25 inner concrete or sealing material 3 in the second gap, formed three seals, further increase steel
The water-stagnating effect of the connecting portion of cofferdam 1 and concrete open caisson 2.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. the connecting structure of a kind of steel cofferdam and concrete open caisson characterized by comprising
Steel cofferdam (1) comprising connected inside panel (11) and exterior panel (12)；
Concrete open caisson (2), top are equipped with groove (21), the inside panel (11) and are embedded in the concrete open caisson (2)
First built-in fitting (22) at top connects；The exterior panel (12) supports on the bottom surface of the groove (21), and be embedded in
The second built-in fitting (23) connection at the top of the concrete open caisson (2) and below the groove (21)；The exterior panel
(12) it is reserved with the first gap (24) between the cell wall on the outside of the groove (21) close concrete open caisson (2), described first
Sealing material (3) are filled in gap (24).
2. the connecting structure of steel cofferdam as described in claim 1 and open caisson, it is characterised in that:
The exterior panel (12) and the groove (21) are reserved with the second gap between the cell wall on the inside of concrete open caisson (2)
(25), the interior fill concrete of second gap (25) or sealing material (3).
3. the connecting structure of steel cofferdam as described in claim 1 and open caisson, it is characterised in that: the inside panel (11) and outer wall
Plate (12) is connected by reinforcer (13).
4. the connecting structure of steel cofferdam as described in claim 1 and concrete open caisson, it is characterised in that: the groove (21)
Cross section is in inverted trapezoidal, and the cell wall on the outside of concrete open caisson (2) is vertical edge, the vertical edge and concrete open caisson (2)
Outer edge reserves scheduled distance.
5. the connecting structure of steel cofferdam as claimed in claim 4 and concrete open caisson, it is characterised in that:
Gap width between the exterior panel (12) and the vertical edge is not less than 3cm, and is not more than 10cm.
6. the connecting structure of steel cofferdam as claimed in claim 4 and concrete open caisson, it is characterised in that: the groove (21) is leaned on
Cell wall on the inside of nearly concrete open caisson (2) is bevel edge, and the inclination angle of the bevel edge is not more than 45 °.
7. the connecting structure of steel cofferdam as described in claim 1 and concrete open caisson, it is characterised in that: the groove (21)
Depth is not less than 15cm, and is not more than 30cm.
8. the connecting structure of steel cofferdam as described in claim 1 and concrete open caisson, it is characterised in that: groove (21) slot
The width at bottom is not less than 20cm, and is not more than 40cm.
9. a kind of construction method of the connecting structure of steel cofferdam as described in claim 1 and concrete open caisson, which is characterized in that
The following steps are included:
Groove (21) are set at the top of concrete open caisson (2)；
The first built-in fitting (22) are set at the top of concrete open caisson (2), at the top of concrete open caisson (2) and are located under groove (21)
Side's setting the second built-in fitting (23)；
The inside panel (11) of steel cofferdam (1) connect with the first built-in fitting (22), exterior panel (12) is supported by prefabricated steel cofferdam (1)
It holds on the bottom surface of groove (21) and is connect with the second built-in fitting (23), while reserved exterior panel (12) and groove (21) are close mixed
The first gap (24) between cell wall on the outside of solidifying soil open caisson (2), and sealing material (3) are filled in the first gap (24).
10. construction method as claimed in claim 9, it is characterised in that:
In the first gap (24) of reserved exterior panel (12) and groove (21) between the cell wall on the outside of concrete open caisson (2)
When, the second gap (25) between the cell wall on the inside of exterior panel (12) and groove (21) close concrete open caisson (2) is reserved, the
The interior casting concrete in two gaps (25) or sealing material (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027119.0A CN109706948A (en) | 2019-01-11 | 2019-01-11 | The connecting structure and construction method of steel cofferdam and concrete open caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027119.0A CN109706948A (en) | 2019-01-11 | 2019-01-11 | The connecting structure and construction method of steel cofferdam and concrete open caisson |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109706948A true CN109706948A (en) | 2019-05-03 |
Family
ID=66261271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910027119.0A Pending CN109706948A (en) | 2019-01-11 | 2019-01-11 | The connecting structure and construction method of steel cofferdam and concrete open caisson |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109706948A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172985A (en) * | 2019-06-27 | 2019-08-27 | 四川公路桥梁建设集团有限公司 | A kind of interlocking pile-double-wall steel combined cofferdam connection structure and construction manipulation process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242080A (en) * | 1996-03-12 | 1997-09-16 | Fujita Corp | Construction method of water cut-off in water area cofferdam work |
| CN202730783U (en) * | 2012-08-02 | 2013-02-13 | 中交二航局第四工程有限公司 | Water sealing device between steel cofferdam and concrete |
| CN103741725A (en) * | 2014-01-17 | 2014-04-23 | 天津市市政工程设计研究院 | Immersed tunnel final joint and shoreside dry-work construction method thereof |
| CN205035815U (en) * | 2015-07-16 | 2016-02-17 | 中铁大桥局集团有限公司 | Steel reinforced concrete combination cofferdam |
| CN207314368U (en) * | 2017-09-27 | 2018-05-04 | 中铁二十局集团第一工程有限公司 | Steel cofferdam waterproof/drainage structure |
| CN108360402A (en) * | 2018-01-18 | 2018-08-03 | 中国冶集团有限公司 | Assembled sewage-catching case contains and its construction method |
| CN108360543A (en) * | 2018-05-03 | 2018-08-03 | 中铁上海工程局集团有限公司 | A kind of big pre-cast sink well structure of depth and its installation method |
-
2019
- 2019-01-11 CN CN201910027119.0A patent/CN109706948A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242080A (en) * | 1996-03-12 | 1997-09-16 | Fujita Corp | Construction method of water cut-off in water area cofferdam work |
| CN202730783U (en) * | 2012-08-02 | 2013-02-13 | 中交二航局第四工程有限公司 | Water sealing device between steel cofferdam and concrete |
| CN103741725A (en) * | 2014-01-17 | 2014-04-23 | 天津市市政工程设计研究院 | Immersed tunnel final joint and shoreside dry-work construction method thereof |
| CN205035815U (en) * | 2015-07-16 | 2016-02-17 | 中铁大桥局集团有限公司 | Steel reinforced concrete combination cofferdam |
| CN207314368U (en) * | 2017-09-27 | 2018-05-04 | 中铁二十局集团第一工程有限公司 | Steel cofferdam waterproof/drainage structure |
| CN108360402A (en) * | 2018-01-18 | 2018-08-03 | 中国冶集团有限公司 | Assembled sewage-catching case contains and its construction method |
| CN108360543A (en) * | 2018-05-03 | 2018-08-03 | 中铁上海工程局集团有限公司 | A kind of big pre-cast sink well structure of depth and its installation method |
Non-Patent Citations (2)
| Title |
|---|
| 张峰: "津浦线淮河铁路特大桥钢围堰施工中若干问题的处理办法 ", 《铁道标准设计》 * |
| 张峰: "津浦线淮河铁路特大桥钢围堰施工中若干问题的处理办法", 《铁道标准设计》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172985A (en) * | 2019-06-27 | 2019-08-27 | 四川公路桥梁建设集团有限公司 | A kind of interlocking pile-double-wall steel combined cofferdam connection structure and construction manipulation process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105002913B (en) | A kind of highly permeable stratum deep basal pit back cover water sealing structure and its construction method | |
| CN101368389A (en) | Single and double-wall combined steel cofferdam construction method and its single and double-wall combined steel cofferdam | |
| CN109667606A (en) | A kind of tunnel multiple waterproof construction method | |
| CN111305282A (en) | Subway station anti-floating system in weak water-rich stratum and construction method thereof | |
| CN209260738U (en) | A kind of band opening blade foot has bottom steel boxed cofferdam | |
| CN211174142U (en) | Waterproof structure of shield tunnel and station interface | |
| CN109706948A (en) | The connecting structure and construction method of steel cofferdam and concrete open caisson | |
| CN109469068A (en) | A kind of rich water soft stratum excavation of foundation pit and Support Method | |
| CN212250042U (en) | Subway station end reinforcing structure for water-rich sand layer shield construction | |
| CN107034848B (en) | A kind of construction method of water storage concrete dam construction seam flexible leak stoppage | |
| CN206279561U (en) | A kind of poured band of outer wall of basement prefab-form system | |
| CN110761329B (en) | Segmented construction method for mud-water balance open caisson station in soft soil area | |
| CN109595020B (en) | Grouting bag type enlarged head anchor rod for tunnel deviation correction and use method | |
| CN109295990A (en) | A kind of band opening blade foot has bottom steel boxed cofferdam | |
| CN216739713U (en) | Karst area grout curtain structure | |
| CN110359471A (en) | Subaqueous tunnel highly permeable sandy soil layer impermeabilisation destroys structure and construction method | |
| CN216379509U (en) | Anti-floating anchor rod node waterproof structure | |
| CN205907673U (en) | A steel sheet -pile structure that is used for bridge main pier bearing platform foundation ditch on basement rock of river course abrupt slope | |
| CN109137821B (en) | A kind of construction method for wearing dike box culvert | |
| CN210658316U (en) | Underground continuous wall of ultra-deep foundation pit | |
| CN209703516U (en) | The energy foundation pit enclosure structure of automatic chemoprevention protuberance | |
| CN109853599A (en) | A kind of serious foundation pit water stop construction method to seep water under geological conditions | |
| CN206035043U (en) | Prefabricated assembled rectangle underground granary of outer steel plated echelonment | |
| CN105484205B (en) | Concrete anti-seepage panel reconstruct dam heel cover plate water sealing structure and its construction method | |
| CN205742292U (en) | A kind of to the protection structure of existing tunnel below newly-built underground engineering |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190503 |
|
| RJ01 | Rejection of invention patent application after publication |