CN205604273U - Last cofferdam of sandy silt - Google Patents
Last cofferdam of sandy silt Download PDFInfo
- Publication number
- CN205604273U CN205604273U CN201620291936.9U CN201620291936U CN205604273U CN 205604273 U CN205604273 U CN 205604273U CN 201620291936 U CN201620291936 U CN 201620291936U CN 205604273 U CN205604273 U CN 205604273U
- Authority
- CN
- China
- Prior art keywords
- weir
- seat
- cofferdam
- interior
- silt
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic engineering builds technical field, concretely relates to last cofferdam of sandy silt. Including the weir body, interior weir seat, outer weir seat, locate in on the weir seat interior weir body, locate outer weir body and weir crest on the seat of outer weir, the weir body is filled to the silt, outer weir seat, interior weir seat and interior weir body are silt pipe bag and pile up, outer weir body is including pipe bag layer, geotechnological cloth layer and jackstone layer, the weir crest is stone sediment bed course. This kind of cofferdam structure is built and is demolishd the degree of difficulty and hangs down, impact resistance, and simple structure, the construction is quick to work efficiency has been improved.
Description
Technical field
This utility model relates to hydraulic engineering construction technical field, is specifically related to the cofferdam on a kind of sandy silt.
Background technology
Cofferdam refers in hydraulic engineering construction, for building permanent water conservancy projects, the provisional building enclosure built.Its effect is to prevent what water and soil from entering building to build position, in order at cofferdam internal drainage, and excavation pit builds building.
During water conservancy construction, a kind of construction rapid and convenient, remove convenient cofferdam and can reduce the cost of engineering, accelerate the progress of engineering.And tidal bore currently for the Qiantang River is relatively big, the cofferdam that impulsive force is big can not meet above-mentioned cofferdam and should have the advantage that.
Summary of the invention
The purpose of this utility model is to solve current water body tidal bore problem that is relatively big and that lack the cofferdam that impulsive force is surging, it is provided that a kind of quickly drift detection instrument.
In order to reach above-mentioned utility model purpose, this utility model by the following technical solutions:
A kind of cofferdam on sandy silt, including weir body, interior weir seat, outer weir seat, the interior weir body being located on the seat of interior weir, the outer weir body being located on the seat of outer weir and weir crest, weir body is filled to silt, outer weir seat, Zuo Henei weir, interior weir body are silt pipe bag and pile up, outer weir body includes pipe bag layer, geotechnique's layer of cloth and riprap layer, and weir crest is rock ballast bed course.
Preferably, the gradient of Shen Hewai weir, described interior weir body is 1:2.5.
Preferably, the thickness of described interior weir body is 2-4m.
Preferably, the thickness of described pipe bag layer is 2-4m.
Preferably, described geotechnique's layer of cloth is layer 2-3 geotextiles.
Preferably, the thickness of described riprap layer is 2-5m.
Preferably, the width of described weir crest is 5-10m, and thickness is 0.4m.
Preferably, the width of interior weir seat is 21m, and thickness is 2m, and the width of outer weir seat is 12m, and thickness is 1.5m.
Preferably, outer weir seat is externally provided with steel sheet pile.
This utility model compared with prior art, provides the benefit that: it is low to build and remove difficulty, and anti-impact force is strong, simple in construction, and construction quickly, thus improves work efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1 weir body, weir seat in 2,3 outer weir seats, weir body in 4,5 outer weir bodies, 6 weir crests, 7 pipe bag layers, 8 geotechnique's layer of cloths, 9 riprap layers, 10 steel sheet piles.
Detailed description of the invention
Below by specific embodiment, the technical solution of the utility model is further described explanation.
Embodiment:
A kind of cofferdam on sandy silt, as shown in Figure 1, build on bottom the Qiantang River, specifically include weir body 1, interior weir seat 2, outer weir seat 3, the interior weir body 4 being located on interior weir seat 2, the outer weir body 5 being located on outer weir seat 3 and the weir crest 6 at weir body 1 top, it is filled to silt in weir body 1, outer weir seat 3, interior weir seat 2 and interior weir body 4 are silt pipe bag and pile up, and outer weir body 5 includes pipe bag layer 7, geotechnique's layer of cloth 8 and riprap layer 9, and weir crest 6 is rock ballast bed course.
The gradient of interior weir body 4 and outer weir body 5 is 1:2.5.The thickness of interior weir body 4 is 2-4m, and the thickness of pipe bag layer 7 is 2-4m, and geotechnique's layer of cloth 8 is layer 2-3 geotextiles, and the thickness of described riprap layer 9 is 2-5m.The width of interior weir seat 2 is 21m, and thickness is 2m, and the width of outer weir seat 3 is 12m, and thickness is 1.5m.The width of weir crest 6 is 5-10m, and thickness is 0.4m.Outer weir seat 3 is externally provided with steel sheet pile 10, and the height of steel sheet pile 10 is more than the height 0.1-0.2m of outer weir seat 3.
The silt pipe bag of pipe racks layer 7 and outer weir seat 3, interior weir seat 2 and interior weir body 4 uses 400g/m2Geotextiles is made into, and length is generally 30～40m, uses 4m pipe bag.
Claims (9)
1. the cofferdam on a sandy silt, it is characterized in that, including weir body (1), interior weir seat (2), outer weir seat (3), interior weir body (4) being located on interior weir seat (2), outer weir body (5) being located on outer weir seat (3) and weir crest (6), weir body (1) is filled to silt, outer weir seat (3), interior weir seat (2) and interior weir body (4) are silt pipe bag and pile up, outer weir body (5) includes pipe bag layer (7), geotechnique's layer of cloth (8) and riprap layer (9), and weir crest (6) is rock ballast bed course.
Cofferdam on a kind of sandy silt the most according to claim 1, it is characterised in that the gradient on described interior weir body (4) and outer weir body (5) is 1:2.5.
Cofferdam on a kind of sandy silt the most according to claim 1, it is characterised in that the thickness of described interior weir body (4) is 2-4m.
Cofferdam on a kind of sandy silt the most according to claim 1, it is characterised in that the thickness of described pipe bag layer (7) is 2-4m.
Cofferdam on a kind of sandy silt the most according to claim 1, it is characterised in that described geotechnique's layer of cloth (8) is layer 2-3 geotextiles.
Cofferdam on a kind of sandy silt the most according to claim 1, it is characterised in that the thickness of described riprap layer (9) is 2-5m.
Cofferdam on a kind of sandy silt the most according to claim 1, it is characterised in that the width of described weir crest (6) is 5-10m, thickness is 0.4m.
Cofferdam on a kind of sandy silt the most according to claim 1, it is characterised in that the width on interior weir seat (2) is 21m, thickness is 2m, and the width on outer weir seat (3) is 12m, and thickness is 1.5m.
Cofferdam on a kind of sandy silt the most according to claim 1, it is characterised in that outer weir seat (3) is externally provided with steel sheet pile (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620291936.9U CN205604273U (en) | 2016-04-07 | 2016-04-07 | Last cofferdam of sandy silt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620291936.9U CN205604273U (en) | 2016-04-07 | 2016-04-07 | Last cofferdam of sandy silt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205604273U true CN205604273U (en) | 2016-09-28 |
Family
ID=56972549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620291936.9U Expired - Fee Related CN205604273U (en) | 2016-04-07 | 2016-04-07 | Last cofferdam of sandy silt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205604273U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498902A (en) * | 2016-11-16 | 2017-03-15 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of solid slope method rapidly and efficiently |
| CN106801424A (en) * | 2017-01-18 | 2017-06-06 | 杭州天顺市政园林工程有限公司 | A kind of cofferdam construction method |
-
2016
- 2016-04-07 CN CN201620291936.9U patent/CN205604273U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498902A (en) * | 2016-11-16 | 2017-03-15 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of solid slope method rapidly and efficiently |
| CN106801424A (en) * | 2017-01-18 | 2017-06-06 | 杭州天顺市政园林工程有限公司 | A kind of cofferdam construction method |
| CN106801424B (en) * | 2017-01-18 | 2019-03-19 | 杭州天顺市政园林工程有限公司 | A kind of cofferdam construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20170407 |