CN108104142A - A kind of construction method in water middle sleeve cofferdam - Google Patents
A kind of construction method in water middle sleeve cofferdam Download PDFInfo
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- CN108104142A CN108104142A CN201711247192.6A CN201711247192A CN108104142A CN 108104142 A CN108104142 A CN 108104142A CN 201711247192 A CN201711247192 A CN 201711247192A CN 108104142 A CN108104142 A CN 108104142A
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- sleeve
- water
- concrete
- cofferdam
- column
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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 present invention relates to landscape design technical fields, disclose a kind of construction method in water middle sleeve cofferdam, including：Measure the execution conditions of construction site；Design independent foundation under column；Determine sleeve diameter；Determine that sleeve plugs position using theodolite or spirit level；Independent foundation under column is set, then a sleeve is inserted on the periphery of independent foundation under column；Tu Bao or/and sandbag are sunk in perimeter of sleeve；Drain the water in sleeve；Mud is removed, reinforced concrete base is laid in sleeve bottom；Reinforced mesh pours basis, sets up column mould, pours column concrete, sets the built-in fitting for being used for fixing girder steel；The secondary concrete height that pours is more than water-bed absolute altitude；The sleeve that sleeve removes carry out secondary use or will be above the water surface is cut off, remainder remains under water.The present invention provides a kind of new method, using being built based on steel pipe, instead of bulky cofferdam, when generating same landscape construction effect with prior art cofferdam, small, at low cost, short construction period of the invention.
Description
Technical field
The present invention relates to landscape design technical field, more particularly to a kind of construction method in water middle sleeve cofferdam.
Background technology
Cofferdam refers in water conservancy construction engineering, to build permanent water conservancy projects, the provisional building enclosure built.It encloses
The effect on weir is to prevent water and soil from building position into building, so that in cofferdam internal drainage, excavation pit builds building
Object.In bridge foundation construction, when bridge pier, stylobate plinth are located at below earth's surface water level, various forms is built up according to local material
Earth bank, generally use pile plank or steel sheet-pile cofferdam in water is compared with depth and the larger river of flow rate of water flow.Cofferdam is mainly used for
In water and soil building, in addition to the part as formal building, cofferdam is generally removed after being finished.
Steel sheet-pile cofferdam is common a kind of construction method in bridge foundation construction, mainly make use of steel sheet pile stronger
Rigidity and good waterproof function provide supporting, to realize constructor for foundation in water or the high excavation of foundation pit of level of ground water
Member and equipment carry out safety work in anhydrous cofferdam.During actual progress steel sheet pile cofferdam construction, steel sheet pile insertion foundation pit ground
Following depth is to influence a most important factor of entire cofferdam safety and stability, and steel sheet pile insert depth is more shallow, and cofferdam is more not
Safety.
At present, in landscape renovation being done to waterfront, promote construction, some plank roads or sight are often built at offshore in water
Scape half space, plank road or platform generally use reinforced concrete frame structure, basis is using only base under column.Conventional construction method
It is：Cofferdam is built on the outside of plank road or platform, after the water in cofferdam is drained, earth excavation, construction basis；It is applied in agent structure
After the completion of work, then by cofferdam demolition, recover the water surface.Above-mentioned technology is primarily present following shortcoming：It is higher to build the cost in cofferdam, work
Phase is longer, and prolonged dewatering construction is affected to existing revetment in cofferdam, be easy to cause existing revetment and collapses, refutes
Bank rear ground settles；Further, due to the presence in cofferdam, it can also influence water surface navigation scope or flood discharge is impacted.
The content of the invention
The present invention solves the technical problem of cofferdam volume is big, water surface navigation scope can be influenced or shadow is caused to flood discharge
It rings, and there are the problem of cost is higher, the duration is longer in the cofferdam of large volume.
In order to solve the above technical problems, one aspect of the present invention is：Provide a kind of water middle sleeve cofferdam
Construction method, include the following steps：
Step 1 measures the execution conditions of construction site；
Step 2 according to the execution conditions that the step 1 measures, designs independent foundation under column；
Step 3 according to the size and execution conditions of the independent foundation under column that the step 2 designs, determines sleeve diameter；
Step 4 determines that sleeve plugs position using theodolite or spirit level；
Step 5 according to described Step 2: three, four data measured, sets independent foundation under column at the construction field (site), then
A sleeve is inserted on the periphery of the independent foundation under column；
Step 6 sinks to Tu Bao or/and sandbag, for fixes sleeve in perimeter of sleeve；
Step 7 drains the water in the sleeve by water pump；
Step 8 after draining water, removes mud, under solid carbon dioxide environment, in sleeve bottom laying reinforced mesh, pours
Concrete foundation；
Step 9 sets up column mould in the concrete foundation, pours column concrete in the column mould, set at the top of the column concrete
For fixing the built-in fitting of girder steel；
Step 10, secondary between the column mould and sleeve to pour concrete, the secondary height for pouring concrete is more than water-bed mark
It is high；
The sleeve after the completion of construction, is removed carry out secondary use or will be above the set of the water surface by step 11
Cylinder excision, remainder remain under water.
Preferably, in a kind of construction method in above-mentioned water middle sleeve cofferdam, further include：Step 12, by described
Built-in fitting lifting plank road or platform girder steel in step 9；Step 13, in the plank road of the step 12 or platform steel
Profiled sheet is laid on beam, the pouring reinforcement concrete whole casting layer on the profiled sheet, further according to landscape requirement in the reinforced concrete
Ground pavement is done on whole casting layer；The either laydown directly on the plank road or platform girder steel, is installed on the keel
Anticorrosive wood flooring.
Preferably, in a kind of construction method in above-mentioned water middle sleeve cofferdam, the execution conditions bag in the step 1
Include soil condition.
Preferably, in a kind of construction method in above-mentioned water middle sleeve cofferdam, in the step 8, if the sleeve
After the processing of water conservancy project sequence is drained, still there is a small amount of ponding in bottom, concrete can be poured in bottom, after bottom water is excluded, in dry
Under water environment, in sleeve bottom laying reinforced mesh, concrete foundation is poured.
Preferably, in a kind of construction method in above-mentioned water middle sleeve cofferdam, the concrete is concrete.
Preferably, in a kind of construction method in above-mentioned water middle sleeve cofferdam, the soil condition includes the depth of water, mud
Thickness and carrying force parameter.
Preferably, in a kind of construction method in above-mentioned water middle sleeve cofferdam, the sleeve be steel pipe or cast iron pipe,
A diameter of 0.8-1.2m.
Preferably, in a kind of construction method in above-mentioned water middle sleeve cofferdam, the reinforced concrete base is to bind
Reinforcement foundation on pour foundation concrete.
Preferably, in a kind of construction method in above-mentioned water middle sleeve cofferdam, the column mould is managed for PP, a diameter of 0.3-
0.5m。
Preferably, in a kind of construction method in above-mentioned water middle sleeve cofferdam, the sleeve diameter be 1m, the column mould
A diameter of 0.4m.
The beneficial effects of the invention are as follows：
The present invention provides a kind of new methods, using being built based on steel pipe, instead of bulky cofferdam, evacuate steel
After water in pipe, concrete placings, column mould, column concrete construction are done in steel pipe, that is, completes infrastructure, can realize and pacify on column concrete
The purpose of steel loading beam can further carry out landscape erection on the basis of girder steel, be generated with bulky cofferdam similary
Effect, that is, carry out landscape construction purpose；But the present invention compared with the prior art cofferdam, have it is small, it is at low cost,
Cost, short construction period are saved, sleeve can both remove realization secondary use, can also stay in the disposable practicality of water-bed realization,
Due to small, the sleeve for staying in the bottom does not interfere with water surface navigation scope, and flood discharge will not be impacted；Flexible design,
It is set up suitable for most of landscape, it is applied widely.
Description of the drawings
Fig. 1 is the flow chart of the construction method in water middle sleeve cofferdam of the present invention；
Fig. 2 is the structure diagram in water middle sleeve cofferdam of the present invention；
The mark of each component is as follows in attached drawing：
Sleeve 1, independent foundation under column 2, concrete foundation 3, column mould 4, column concrete 5, built-in fitting 6 is secondary to pour concrete 7, plank road or
Platform girder steel 8.
Specific embodiment
In order to which measure, creation characteristic, reached purpose and effect for realizing the technology of the present invention are easy to understand, below will
With reference to the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that
Described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, those of ordinary skill in the art's all other embodiments obtained without creative efforts, belongs to
The scope of protection of the invention.
Embodiment 1：
Fig. 1 is the flow chart of the construction method in water middle sleeve cofferdam of the present invention；
Fig. 2 is the structure diagram in water middle sleeve cofferdam of the present invention；
As shown in Figure 1, 2, the construction method in a kind of water middle sleeve cofferdam of the invention, including：Include the following steps：
Step 1 measures the execution conditions of construction site；
Step 2 according to the execution conditions that the step 1 measures, designs independent foundation under column；
Step 3 according to the size and execution conditions of the independent foundation under column 2 that the step 2 designs, determines that sleeve 1 is straight
Footpath；
Step 4 determines that sleeve 1 plugs position using theodolite or spirit level；
Step 5 according to described Step 2: three, four data measured, sets independent foundation under column 2 at the construction field (site), then
A sleeve 1 is inserted on the periphery of the independent foundation under column 2；
Step 6 sinks to Tu Bao or/and sandbag, for fixes sleeve 1 on 1 periphery of sleeve；
Step 7 drains the water in the sleeve 1 by water pump；
Step 8 after draining water, removes mud, under solid carbon dioxide environment, reinforced mesh is laid in 1 bottom of sleeve, is poured
Build concrete foundation 3；
Step 9 sets up column mould 4 in the concrete foundation 3, pours column concrete 5 in the column mould 4, pushed up in the column concrete 5
Portion sets the built-in fitting 6 for being used for fixing girder steel；
Step 10, secondary between the column mould 4 and sleeve 1 to pour concrete 7, the secondary height for pouring concrete 7 is more than water
Bottom absolute altitude；
The sleeve 1 after the completion of construction, is removed carry out secondary use or will be above the described of the water surface by step 11
Sleeve 1 is cut off, and remainder remains under water.
The present invention provides a kind of new methods, using being built based on steel pipe, instead of bulky cofferdam, evacuate steel
After water in pipe, concrete placings, column mould, column concrete construction are done in steel pipe, that is, completes infrastructure, can realize and pacify on column concrete
The purpose of steel loading beam can further carry out landscape erection on the basis of girder steel, be generated with bulky cofferdam similary
Effect, that is, carry out landscape construction purpose；But the present invention compared with the prior art cofferdam, have it is small, it is at low cost,
Cost, short construction period are saved, sleeve can both remove realization secondary use, can also stay in the disposable practicality of water-bed realization,
Due to small, the sleeve for staying in the bottom does not interfere with water surface navigation scope, and flood discharge will not be impacted；Flexible design,
It is set up suitable for most of landscape, it is applied widely.
Embodiment 2：
Fig. 1 is the flow chart of the construction method in water middle sleeve cofferdam of the present invention；
Fig. 2 is the structure diagram in water middle sleeve cofferdam of the present invention；
As shown in Figure 1, 2, the construction method in a kind of water middle sleeve cofferdam of the invention, on the basis of embodiment 1, is also wrapped
It includes：Step 12 lifts plank road or platform girder steel 8 by the built-in fitting 6 in the step 9；Step 13, in the step
Profiled sheet is laid on rapid 12 plank road or platform girder steel 8, the pouring reinforcement concrete whole casting layer on the profiled sheet, then root
According to landscape requirement ground pavement is done on the reinforced concrete whole casting layer；Either directly it is laid on the plank road or platform girder steel
Keel install anticorrosive wood flooring on the keel.Plank road or platform steel are lifted in the position higher than the water surface by built-in fitting
Then beam carries out landscape construction according to demand, simple, convenient with mounting process, the diversified advantage of landscape construction is suitable for
Most landscape constructions, it is applied widely.
Further, the execution conditions in step 1 include soil condition.
Further, in step 8, if the sleeve still has a small amount of ponding after the processing of water conservancy project sequence is drained in bottom,
Concrete can be poured in bottom, after bottom water is excluded, under solid carbon dioxide environment, in sleeve bottom laying reinforced mesh, poured
Build concrete foundation 3.Concrete is poured in bottom, it is more firm in order to ensure that reinforced concrete base is laid under solid carbon dioxide environment.
Further, concrete is concrete.
Further, soil condition includes the depth of water, silt depth and carrying force parameter.Taking into full account can be to the stabilization of casing
The factor having an impact, the casing fineness degree of selection can meet the needs of stable and meet the requirement of cost.
Further, reinforced concrete base is to pour foundation concrete on the reinforcement foundation bound.The good basis of binding on the coast
Reinforcing bar is then directly placed into sleeve bottom, and speed of application is made faster to shorten construction period, improves landscape construction speed.
Further, sleeve be steel pipe or cast iron pipe, a diameter of 0.8-1.2m, the design ruler depending on column footing
It is very little；Column mould is managed for PP, a diameter of 0.3-0.5m.Preferably, sleeve diameter 1m, the column mode diameter are 0.4m.Steel pipe corrosion resistant
Erosion, stability are good；Cast iron pipe, PP pipes have advantage at low cost.
The basis that a piece diameter 1m steel pipe is arranged to, the cost of steel pipe is only hundreds of yuan, therefore is made and enclosed of steel bushing
The cost on weir is only the 1/5-1/4 that cofferdam cost is made in conventional steel plates stake etc..
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of construction method in water middle sleeve cofferdam, which is characterized in that include the following steps：
Step 1 measures the execution conditions of construction site；
Step 2 according to the execution conditions that the step 1 measures, designs independent foundation under column；
Step 3 according to the size and execution conditions of the independent foundation under column that the step 2 designs, determines sleeve diameter；
Step 4 determines that sleeve plugs position using theodolite or spirit level；
Step 5, according to described Step 2: three, four data measured, set independent foundation under column at the construction field (site), then described
A sleeve is inserted on the periphery of independent foundation under column；
Step 6 sinks to Tu Bao or/and sandbag, for fixes sleeve in perimeter of sleeve；
Step 7 drains the water in the sleeve by water pump；
Step 8 after draining water, removes mud, under solid carbon dioxide environment, in sleeve bottom laying reinforced mesh, pours concrete base
Plinth；
Step 9 sets up column mould in the concrete foundation, pours column concrete in the column mould, set and be used at the top of the column concrete
The built-in fitting of fixed girder steel；
Step 10, secondary between the column mould and sleeve to pour concrete, the secondary height for pouring concrete is more than water-bed absolute altitude；
After the completion of construction, the sleeve that the sleeve removes carry out secondary use or will be above the water surface is cut for step 11
It removes, remainder remains under water.
2. the construction method in a kind of water middle sleeve cofferdam according to claim 1, which is characterized in that further include：Step 10
Two, plank road or platform girder steel are lifted by the built-in fitting in the step 9；Step 13, in the plank road of the step 12
Or profiled sheet is laid on platform girder steel, the pouring reinforcement concrete whole casting layer on the profiled sheet exists further according to landscape requirement
Ground pavement is done on the reinforced concrete whole casting layer；The either laydown directly on the plank road or platform girder steel, described
Anticorrosive wood flooring is installed on keel.
3. the construction method in a kind of water middle sleeve cofferdam according to claim 1, which is characterized in that in the step 1
Execution conditions include soil condition.
4. a kind of construction method in water middle sleeve cofferdam according to claim 1, which is characterized in that in the step 8,
If the sleeve still has a small amount of ponding in bottom, can pour concrete in bottom, bottom water is arranged after the processing of water conservancy project sequence is drained
After removing, under solid carbon dioxide environment, in sleeve bottom laying reinforced mesh, concrete foundation is poured.
5. the construction method in a kind of water middle sleeve cofferdam according to claim 4, which is characterized in that the concrete is concrete
Concrete.
A kind of 6. construction method in water middle sleeve cofferdam according to claim 1, which is characterized in that the soil condition bag
Include the depth of water, silt depth and carrying force parameter.
7. the construction method in a kind of water middle sleeve cofferdam according to claim 1, which is characterized in that the sleeve is steel pipe
Or cast iron pipe, a diameter of 0.8-1.2m.
A kind of 8. construction method in water middle sleeve cofferdam according to claim 1, which is characterized in that the reinforced concrete base
To pour foundation concrete on the reinforcement foundation bound.
9. the construction method in a kind of water middle sleeve cofferdam according to claim 1, which is characterized in that the column mould is PP
Pipe, a diameter of 0.3-0.5m.
10. the construction method in a kind of water middle sleeve cofferdam according to claim 8,9, which is characterized in that the sleeve is straight
Footpath is 1m, and the column mode diameter is 0.4m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711247192.6A CN108104142A (en) | 2017-12-01 | 2017-12-01 | A kind of construction method in water middle sleeve cofferdam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711247192.6A CN108104142A (en) | 2017-12-01 | 2017-12-01 | A kind of construction method in water middle sleeve cofferdam |
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| CN201711247192.6A Pending CN108104142A (en) | 2017-12-01 | 2017-12-01 | A kind of construction method in water middle sleeve cofferdam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680683A (en) * | 2019-01-30 | 2019-04-26 | 天津大学 | A kind of steel pile casting formula deep-sea cement mixing pile construction method |
| CN109868805A (en) * | 2019-02-28 | 2019-06-11 | 天津大学 | Steel pile casting formula heavy-tamping method underwater reinforced construction method |
| CN109868806A (en) * | 2019-02-01 | 2019-06-11 | 天津大学 | A kind of steel pile casting formula deep-sea vibroflotation pile construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053273A (en) * | 1990-02-16 | 1991-07-24 | 交通部第一航务工程局第三工程公司 | Bridge pier bearing platform construction method and apparatus in the water |
| CN101838993A (en) * | 2010-05-17 | 2010-09-22 | 中铁二十局集团有限公司 | Construction technology of steel sheet pile cofferdam for Yellow River Channel internal support table construction |
| CN103397650A (en) * | 2013-08-23 | 2013-11-20 | 中交第四航务工程勘察设计院有限公司 | Large-scale steel cylinder cofferdam structure |
| CN106284085A (en) * | 2016-08-28 | 2017-01-04 | 中铁二十局集团第工程有限公司 | It is close to the most wired deep water foundation Large-Span Continuous beam construction method |
-
2017
- 2017-12-01 CN CN201711247192.6A patent/CN108104142A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053273A (en) * | 1990-02-16 | 1991-07-24 | 交通部第一航务工程局第三工程公司 | Bridge pier bearing platform construction method and apparatus in the water |
| CN101838993A (en) * | 2010-05-17 | 2010-09-22 | 中铁二十局集团有限公司 | Construction technology of steel sheet pile cofferdam for Yellow River Channel internal support table construction |
| CN103397650A (en) * | 2013-08-23 | 2013-11-20 | 中交第四航务工程勘察设计院有限公司 | Large-scale steel cylinder cofferdam structure |
| CN106284085A (en) * | 2016-08-28 | 2017-01-04 | 中铁二十局集团第工程有限公司 | It is close to the most wired deep water foundation Large-Span Continuous beam construction method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680683A (en) * | 2019-01-30 | 2019-04-26 | 天津大学 | A kind of steel pile casting formula deep-sea cement mixing pile construction method |
| CN109868806A (en) * | 2019-02-01 | 2019-06-11 | 天津大学 | A kind of steel pile casting formula deep-sea vibroflotation pile construction method |
| CN109868805A (en) * | 2019-02-28 | 2019-06-11 | 天津大学 | Steel pile casting formula heavy-tamping method underwater reinforced construction method |
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