CN113152497A - Floating arch cofferdam reinforcement construction method - Google Patents
Floating arch cofferdam reinforcement construction method Download PDFInfo
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- CN113152497A CN113152497A CN202110214896.3A CN202110214896A CN113152497A CN 113152497 A CN113152497 A CN 113152497A CN 202110214896 A CN202110214896 A CN 202110214896A CN 113152497 A CN113152497 A CN 113152497A
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- arch cofferdam
- cofferdam
- arch
- buffer
- floating
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- 238000007667 floating Methods 0.000 title claims abstract description 33
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 230000002787 reinforcement Effects 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 230000003139 buffering effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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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)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a reinforcing construction method for a floating arch cofferdam in the technical field of cofferdams, which comprises the following steps: pre-burying a buffer tube: burying a plurality of buffer tubes in a river channel in an arc shape, wherein the tops of the buffer tubes are above the water surface; erecting an arch cofferdam: erecting an arch cofferdam at the top of the buffer tube, and inserting a connecting tube at the bottom of the arch cofferdam deeply into the buffer tube; erecting a buffer layer: erecting the buffer layer on the outer side of the arch cofferdam in an annular shape; flow guiding slope: the flow guide slope is annularly erected on the outer side of the buffer layer, one side of the flow guide slope, which is close to the dam, is connected with the dam, the impact force of water is relieved through multi-layer buffering, and the impact force of the water is reduced through the flow guide structure on the outermost layer, so that the stability of the floating arch cofferdam is guaranteed, and the function of reinforcing the floating arch cofferdam is achieved.
Description
Technical Field
The invention relates to the technical field of cofferdams, in particular to a reinforcing construction method for a floating arch cofferdam.
Background
The cofferdam is a temporary enclosure structure constructed for constructing permanent water conservancy facilities in the water conservancy project construction. The cofferdam has the functions of preventing water and soil from entering the building position of the building so as to drain water in the cofferdam, excavate a foundation pit and build the building. The cofferdam is mainly used in hydraulic buildings in general, and the cofferdam is dismantled after being used up except for being used as a part of a formal building. The cofferdam height is higher than the highest water level that may occur during construction.
The floating arch cofferdam is a space shell structure, on one hand, the working principle of the arch is utilized, and the borne horizontal water pressure is changed into axial pressure which is transmitted to the upstream surface of the dam; on the other hand, the section of the arch structure adopts a box type structure, and the sinking and floating of the arch cofferdam can be adjusted by a water filling or draining method. And can be dragged to a designated place by a tugboat to create another 'dry work' environment again for construction.
The existing floating type arch cofferdam is improved in stability through enhancing a space structure, and the stability of the floating type arch cofferdam can be well guaranteed in a short time, but the long-time use of the floating type arch cofferdam is continuously impacted by water flow, so that the floating type arch cofferdam is extremely easy to damage, and the stability of the floating type arch cofferdam is seriously influenced.
Disclosure of Invention
The invention aims to provide a reinforcing construction method for a floating arch cofferdam, which aims to solve the problems that the stability of the floating arch cofferdam is improved by enhancing the space structure in most of the existing floating arch cofferdams in the background technology, and the stability of the floating arch cofferdam can be well ensured in a short time, but the long-time use of the floating arch cofferdam is continuously impacted by water flow, so that the floating arch cofferdam is easily damaged, and the stability of the floating arch cofferdam is seriously influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a reinforcing construction method for a floating arch cofferdam comprises the following steps:
s1: pre-burying a buffer tube: burying a plurality of buffer tubes in a river channel in an arc shape, wherein the tops of the buffer tubes are above the water surface;
s2: erecting an arch cofferdam: erecting an arch cofferdam at the top of the buffer tube, and inserting a connecting tube at the bottom of the arch cofferdam deeply into the buffer tube;
s3: erecting a buffer layer: erecting the buffer layer on the outer side of the arch cofferdam in an annular shape;
s4: flow guiding slope: the water conservancy diversion slope is the annular and erects in the outside of buffer layer, and the water conservancy diversion slope closes on one side of dykes and dams and links together with dykes and dams.
Preferably, the arch cofferdam includes:
an arch cofferdam body;
the connecting pipes are uniformly arranged at the bottom of the arch cofferdam body.
Preferably, the buffer tube comprises:
an outer tube;
the rubber sleeve is arranged in the inner cavity of the outer pipe;
the water outlet is arranged on the outer side surface of the outer pipe and communicated with the inner cavity of the outer pipe.
Preferably, the diversion slope includes:
a diversion slope body;
and the guide grooves are uniformly formed in the inclined plane of the guide slope body.
Preferably, the buffer layer is a rubber pad.
Compared with the prior art, the invention has the beneficial effects that: the invention reduces the impact force of water through multi-layer buffering, reduces the impact force of water through the outermost diversion structure, ensures the stability of the floating arch cofferdam and plays a role of reinforcing the floating arch cofferdam, the connecting pipe is inserted into the outer pipe, the rubber sleeve is coated on the outer wall of the connecting pipe, when water flow impacts the arch cofferdam body, the vibration is transmitted to the connecting pipe through the arch cofferdam body, the connecting pipe is transmitted to the rubber sleeve, the vibration generated by the water flow impact is absorbed through the rubber sleeve, the vibration is reduced, thereby ensuring the stability of the arch cofferdam body, when the connecting pipe is inserted into the inner cavity of the outer pipe, the water and the air in the inner cavity of the outer pipe are discharged through the water discharge port, the pressure of the inner cavity of the outer pipe is reduced, the connecting pipe can be inserted into the bottom of the inner cavity of the outer pipe, the diversion slope body is poured outside the buffer layer, and the section of the diversion slope body is in a right trapezoid shape, the effect of buffer layer is the same with the telescopic effect of rubber, reduce rivers and to encircleing the impact of cofferdam body, improve the stability of encircleing the cofferdam body, the guiding gutter is towards the river, when rivers strike on the water conservancy diversion slope body, the inside of guiding gutter is entered into to partial rivers, lead partial rivers through the guiding gutter and get back to the river again, the impact force of rivers is reduced through the direction that reduces rivers, the guarantee encircles the stability of cofferdam body, reduce the impact of rivers to encircleing the cofferdam body through the buffering to rivers and direction, play and consolidate the effect of encircleing the cofferdam body.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the arch cofferdam structure of the present invention;
FIG. 3 is a schematic view of a buffer tube configuration of the present invention;
fig. 4 is a schematic view of the structure of the diversion slope of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a reinforcing construction method of a floating arch cofferdam, which reduces the impact force of water through multi-layer buffering and reduces the impact force of water through a diversion structure at the outermost layer, thereby ensuring the stability of the floating arch cofferdam and playing a role in reinforcing the floating arch cofferdam, please refer to figure 1,
the reinforcing construction method of the floating arch cofferdam comprises the following steps:
s1: pre-burying a buffer tube: burying a plurality of buffer tubes in a river channel in an arc shape, wherein the tops of the buffer tubes are above the water surface;
s2: erecting an arch cofferdam: erecting an arch cofferdam at the top of the buffer tube, and inserting a connecting tube at the bottom of the arch cofferdam deeply into the buffer tube;
s3: erecting a buffer layer: the buffer layer is annularly erected on the outer side of the arch cofferdam and is a rubber pad;
s4: flow guiding slope: the water conservancy diversion slope is the annular and erects in the outside of buffer layer, and the water conservancy diversion slope closes on one side of dykes and dams and links together with dykes and dams.
Referring to fig. 2, the arch cofferdam includes:
an arch cofferdam body 110;
a plurality of connection pipes 120 are uniformly installed at the bottom of the arch cofferdam body 110.
Referring to FIGS. 2-3, a buffer tube includes:
the outer pipes 210 are inserted on the river bed and reinforced by concrete, the number of the outer pipes 210 is equal to that of the connecting pipes 120, and the positions of the outer pipes 210 correspond to those of the connecting pipes 120;
the rubber sleeve 220 is arranged in the inner cavity of the outer pipe 210, the connecting pipe 120 is inserted into the outer pipe 210, the rubber sleeve 220 is coated on the outer wall of the connecting pipe 120, when the water flow impacts the arch cofferdam body 110, vibration is transmitted to the connecting pipe 120 through the arch cofferdam body 110, the connecting pipe 120 is transmitted to the rubber sleeve 220, and the vibration generated by water flow impact is absorbed through the rubber sleeve 220, so that the vibration is slowed down, and the stability of the arch cofferdam body 110 is guaranteed;
the water outlet 230 is installed at the outer side of the outer tube 210, the water outlet 230 is communicated with the inner cavity of the outer tube 210, and when the connection tube 120 is inserted into the inner cavity of the outer tube 210, water and air in the inner cavity of the outer tube 210 are discharged through the water outlet 230, so that the pressure of the inner cavity of the outer tube 210 is reduced, and the connection tube 120 can be inserted into the bottom of the inner cavity of the outer tube 210.
Referring to fig. 2-4, the diversion ramp includes:
the diversion slope body 310 is poured on the outer side of the buffer layer, the section of the diversion slope body 310 is in a right trapezoid shape, the effect of the buffer layer is the same as that of the rubber sleeve 220, the impact of water flow on the arch cofferdam body 110 is reduced, and the stability of the arch cofferdam body 110 is improved;
the plurality of diversion trenches 320 are uniformly arranged on the inclined plane of the diversion slope body 310, the diversion trenches 320 face the river surface, when water flow impacts the diversion slope body 310, partial water flow enters the inside of the diversion trenches 320, partial water flow is guided out through the diversion trenches 320 and returns to the river again, the impact force of the water flow is reduced through the guiding of the reduced water flow, the stability of the arch cofferdam body 110 is guaranteed, the impact of the water flow on the arch cofferdam body 110 is reduced through the buffering and guiding of the water flow, and the function of reinforcing the arch cofferdam body 110 is achieved.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. A reinforcing construction method for a floating arch cofferdam is characterized by comprising the following steps: the reinforcing construction method of the floating arch cofferdam comprises the following steps:
s1: pre-burying a buffer tube: burying a plurality of buffer tubes in a river channel in an arc shape, wherein the tops of the buffer tubes are above the water surface;
s2: erecting an arch cofferdam: erecting an arch cofferdam at the top of the buffer tube, and inserting a connecting tube at the bottom of the arch cofferdam deeply into the buffer tube;
s3: erecting a buffer layer: erecting the buffer layer on the outer side of the arch cofferdam in an annular shape;
s4: flow guiding slope: the water conservancy diversion slope is the annular and erects in the outside of buffer layer, and the water conservancy diversion slope closes on one side of dykes and dams and links together with dykes and dams.
2. The reinforcing construction method for the floating arch cofferdam of claim 1, wherein: the arch cofferdam includes:
an arch cofferdam body (110);
the connecting pipes (120) are uniformly arranged at the bottom of the arch cofferdam body (110).
3. The reinforcing construction method for the floating arch cofferdam of claim 1, wherein: the buffer tube includes:
an outer tube (210);
a rubber sleeve (220), the rubber sleeve (220) being mounted within the inner lumen of the outer tube (210);
the water outlet (230) is installed on the outer side surface of the outer pipe (210), and the water outlet (230) is communicated with the inner cavity of the outer pipe (210).
4. The reinforcing construction method for the floating arch cofferdam of claim 1, wherein: the diversion slope includes:
a flow directing ramp body (310);
the flow guide grooves (320) are uniformly formed in the inclined surface of the flow guide slope body (310).
5. The reinforcing construction method for the floating arch cofferdam of claim 1, wherein: the buffer layer is a rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110214896.3A CN113152497A (en) | 2021-02-25 | 2021-02-25 | Floating arch cofferdam reinforcement construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110214896.3A CN113152497A (en) | 2021-02-25 | 2021-02-25 | Floating arch cofferdam reinforcement construction method |
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| CN202110214896.3A Pending CN113152497A (en) | 2021-02-25 | 2021-02-25 | Floating arch cofferdam reinforcement construction method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1277843C (en) * | 1977-06-01 | 1990-12-18 | Seppo Juhani Hyttinen | Method for building a protective wall when constructing an underwater base |
| CN101245603A (en) * | 2008-01-23 | 2008-08-20 | 中国水利水电科学研究院 | Floating arch cofferdam and construction method |
| CN202326871U (en) * | 2011-11-29 | 2012-07-11 | 大连船舶重工集团有限公司 | Vibration-reducing and noise-reducing device for equipment with support legs |
| CN209053075U (en) * | 2018-08-29 | 2019-07-02 | 刘玉雪 | A kind of drainage arrangement for land control |
| CN111809640A (en) * | 2020-07-27 | 2020-10-23 | 福建兴港建工有限公司 | Cofferdam structure and construction method thereof |
-
2021
- 2021-02-25 CN CN202110214896.3A patent/CN113152497A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1277843C (en) * | 1977-06-01 | 1990-12-18 | Seppo Juhani Hyttinen | Method for building a protective wall when constructing an underwater base |
| CN101245603A (en) * | 2008-01-23 | 2008-08-20 | 中国水利水电科学研究院 | Floating arch cofferdam and construction method |
| CN202326871U (en) * | 2011-11-29 | 2012-07-11 | 大连船舶重工集团有限公司 | Vibration-reducing and noise-reducing device for equipment with support legs |
| CN209053075U (en) * | 2018-08-29 | 2019-07-02 | 刘玉雪 | A kind of drainage arrangement for land control |
| CN111809640A (en) * | 2020-07-27 | 2020-10-23 | 福建兴港建工有限公司 | Cofferdam structure and construction method thereof |
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Application publication date: 20210723 |
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