CN203440811U - V-shaped seal device of Larsen steel plate pile cofferdam - Google Patents
V-shaped seal device of Larsen steel plate pile cofferdam Download PDFInfo
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- CN203440811U CN203440811U CN201320517151.5U CN201320517151U CN203440811U CN 203440811 U CN203440811 U CN 203440811U CN 201320517151 U CN201320517151 U CN 201320517151U CN 203440811 U CN203440811 U CN 203440811U
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- steel sheet
- larsen steel
- steel plate
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- sheet pile
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Abstract
A V-shaped seal device of a Larsen steel plate pile cofferdam comprises a Larsen steel plate pile. A longitudinal fracture is cut in the convex face of the Larsen steel plate pile along the central line, and a V-shaped steel plate is manufactured on the Larsen steel plate pile from the bottom end to the top end. The width of the section opening of the V-shaped steel plate is slightly smaller than that of the convex face of the Larsen steel plate pile, and the length of the section opening of the V-shaped steel plate is equal to that of the longitudinal fracture. The V-shaped included angle is smaller than 90 degrees, the two sides of the section opening of the V-shaped steel plate are fixedly connected to the convex face of the Larsen steel plate pile, and through the longitudinal fracture, the V-shaped steel plate is properly formed in the Larsen steel plate pile in an widening or overlapping mode, namely the width of the Larsen steel plate pile can be adjusted.
Description
Technical field
The utility model relates to a kind of closing device of steel sheet-pile cofferdam, particularly the closing device of Larsen steel sheet-pile cofferdam.
Background technology
Along with the fast development of Rail Highway, the high pier bridge construction of deep water task is heavy.Larsen steel sheet-pile cofferdam is as an important auxiliary construction technology, and in pier in water, application is more and more extensive.Yet in Larsen steel sheet pile cofferdam construction, cofferdam sealing is crucial, is also the difficult point of whole construction technology, has determined the final success or failure of whole Larsen steel sheet-pile cofferdam.
Larsen steel sheet pile cross section is " U " shape (Fig. 1), and this frid structure had both alleviated deadweight, had also improved side direction compressive resistance.Conventional Larsen steel sheet pile has PU-32 type, SP-II, SP-III, SP-IV type etc., and their basic structure forms are the same, and just geometric parameter is different, and in construction, general same model is used, and under specific condition, also can mix and use according to on-site actual situations.In construction, adopt single plugging one by one at the bottom of riverbed, by " connection snap close ", connect to form the annular walls (being Larsen steel sheet-pile cofferdam) of a sealing between single, be isolated from the outside, guarantee normal construction in cofferdam.According to the action principle of Larsen steel sheet-pile cofferdam, Larsen steel sheet-pile cofferdam is by the inserted to play of last root Larsen steel sheet pile, connects first and second from the bottom Larsen steel sheet pile, forms the annular walls dash of sealing, to create dry work condition.
What Larsen steel sheet pile was generally selected is hot-strip, has very high intensity, not yielding.To complete smoothly cofferdam sealing, during last root Larsen steel sheet pile of inserted to play, require first with second from the bottom Larsen steel sheet pile between reserved spacing x(be connected the distance between fore shaft) keeping parallelism as far as possible, and just equal the width (Fig. 1) of last root Larsen steel sheet pile.When reserved spacing x and last root Larsen steel sheet pile width differ larger, Larsen steel sheet-pile cofferdam cannot seal smoothly.
Summary of the invention
The purpose of this utility model is to provide a kind of when reserved spacing and last root Larsen steel sheet pile width differ larger, can realize the Larsen steel sheet-pile cofferdam device of sealing smoothly.
For reaching above object, the utility model takes following technical scheme to be achieved:
A kind of " V " shape closing device of Larsen steel sheet-pile cofferdam, it is characterized in that, comprise a Larsen steel sheet pile, at a longitudinal fracture of longitudinally center line cutting of its convex surface, from Larsen steel sheet pile stake bottom one until apart from the position near stake top, make " V " shape steel plate, the width of its section opening is slightly smaller than Larsen steel sheet pile land width, length is with longitudinally fracture is equal in length, " V " clevis angle is less than 90 °, the both sides of being somebody's turn to do " V " shape section of steel plate opening are connected firmly on Larsen steel sheet pile convex surface, utilize longitudinal fracture, along the horizontal appropriateness of Larsen steel sheet pile, open or close " V " shape steel plate, it is the width of adjustable Larsen steel sheet pile.
In such scheme, at Larsen steel sheet pile concave surface longitudinally, some stiffeners that be arranged in parallel connect two limits of Larsen steel sheet pile.Described longitudinal fracture is from Larsen steel sheet pile stake bottom one until apart from the position near stake top 1-2m.Described " V " clevis angle is 60 °.
Technological merit of the present utility model is:
1, utilize longitudinal fracture and " V " steel plate that can appropriate transversal stretching, facilitate last root Larsen steel sheet pile adjustment width, adapt to the reserved spacing of Larsen steel sheet-pile cofferdam sealing.
2, utilize " V " steel plate, stiffener, the intensity, the loss of rigidity that after compensation Yin Lasen steel sheet pile cracks, cause.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail.
Fig. 1 is the desirable sealing of Larsen steel sheet-pile cofferdam schematic diagram (first with second from the bottom Larsen steel sheet pile between reserve the width that spacing just equals last root Larsen steel sheet pile).
Fig. 2 is the section structure schematic diagram of the utility model device.
Fig. 3 is the transverse plane figure of Fig. 2 device.
In Fig. 1 to Fig. 3: 1, connect snap close; 2, last root Larsen steel sheet pile; 3, second from the bottom Larsen steel sheet pile; 4, first Larsen steel sheet pile; X, reserved spacing; 5, " V " shape steel plate; 6, longitudinal fracture; 7, stiffener; 8, weld seam; 9, stake top; 10, stake bottom.
The specific embodiment
While in the end sealing Larsen steel sheet-pile cofferdam, when reserved spacing x and last root Larsen steel sheet pile 2 width differ larger (as x is greater than last root Larsen steel sheet pile width), referring to Fig. 2-Fig. 3, adopt a kind of Larsen steel sheet-pile cofferdam " V " shape closing device that first is linked up by being connected snap close 1 with second from the bottom Larsen steel sheet pile.This closing device comprises a Larsen steel sheet pile, utilizes 5mm steel plate, makes " V " shape steel plate 5 that a block length is slightly shorter than Larsen steel sheet pile length, and the width of its section opening is slightly smaller than Larsen steel sheet pile land width, approximately 60 °, " V " clevis angle.By the both sides of " V " shape section of steel plate opening, be welded on Larsen steel sheet pile convex surface, form two weld seams 8 of symmetrical Larsen steel sheet pile longitudinal centre line.
At a Larsen steel sheet pile convex surface longitudinal fracture 6 of center line cutting longitudinally, from Larsen steel sheet pile stake bottom one until apart from the position of stake top 1-2m, its length equates (Fig. 3) with " V " shape steel plate length.
" V " shape steel plate 5 that utilizes longitudinal fracture 6 and can pull open along the horizontal appropriateness of Larsen steel sheet pile, the width of adjusting Larsen steel sheet pile, to adapt to reserved spacing x.
Finally, at Larsen steel sheet pile concave surface longitudinally, some stiffeners 7 that be arranged in parallel are connected across (with Ф 16 screw-thread steels welding) on two limits of Larsen steel sheet pile, for the distortion of the longitudinal fracture of drawknot Larsen steel sheet pile, increase the intensity of the Larsen steel sheet pile that regulates width.Plug this last root Larsen steel sheet pile, Larsen steel sheet-pile cofferdam is sealed smoothly.
The utility model is in when application, should notice that first of Larsen steel sheet pile and second from the bottom male and fomale(M&F) must homonymy, and the locus of the two is as far as possible parallel, and reserved spacing x requires to approach the width of Larsen steel sheet pile.The seal location of Larsen steel sheet-pile cofferdam should be selected in back side and the more shallow place of the depth of water as far as possible, has so both facilitated site operation, also can guarantee the safety of steel sheet-pile cofferdam.
Claims (4)
1. " V " shape closing device of Larsen steel sheet-pile cofferdam, is characterized in that, comprises a Larsen steel sheet pile, at its convex surface longitudinal fracture of center line cutting longitudinally, from Larsen steel sheet pile stake bottom one until near the position on stake top; Make " V " shape steel plate, the width of its section opening is slightly smaller than Larsen steel sheet pile land width, length is with longitudinally fracture is equal in length, " V " clevis angle is less than 90 °, the both sides of being somebody's turn to do " V " shape section of steel plate opening are connected firmly on Larsen steel sheet pile convex surface, utilize longitudinal fracture, along the horizontal appropriateness of Larsen steel sheet pile, open or close " V " shape steel plate, the i.e. width of adjustable Larsen steel sheet pile.
2. " V " shape closing device of Larsen steel sheet-pile cofferdam as claimed in claim 1, is characterized in that, at Larsen steel sheet pile concave surface longitudinally, some stiffeners that be arranged in parallel connect two limits of Larsen steel sheet pile.
3. " V " shape closing device of Larsen steel sheet-pile cofferdam as claimed in claim 1, is characterized in that, described longitudinal fracture is from Larsen steel sheet pile stake bottom one until apart from the position near stake top 1-2m.
4. " V " shape closing device of Larsen steel sheet-pile cofferdam as claimed in claim 1, is characterized in that, described " V " clevis angle is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517151.5U CN203440811U (en) | 2013-08-22 | 2013-08-22 | V-shaped seal device of Larsen steel plate pile cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517151.5U CN203440811U (en) | 2013-08-22 | 2013-08-22 | V-shaped seal device of Larsen steel plate pile cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203440811U true CN203440811U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320517151.5U Expired - Fee Related CN203440811U (en) | 2013-08-22 | 2013-08-22 | V-shaped seal device of Larsen steel plate pile cofferdam |
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| Country | Link |
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| CN (1) | CN203440811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638562A (en) * | 2016-12-08 | 2017-05-10 | 中铁上海工程局集团有限公司 | Special-shaped extensible and retractable rapid closure steel sheet pile and application thereof |
| CN109610468A (en) * | 2018-11-29 | 2019-04-12 | 中建城市建设发展有限公司 | A kind of combination unit and its application method of steel diaphragm wall |
-
2013
- 2013-08-22 CN CN201320517151.5U patent/CN203440811U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638562A (en) * | 2016-12-08 | 2017-05-10 | 中铁上海工程局集团有限公司 | Special-shaped extensible and retractable rapid closure steel sheet pile and application thereof |
| CN109610468A (en) * | 2018-11-29 | 2019-04-12 | 中建城市建设发展有限公司 | A kind of combination unit and its application method of steel diaphragm wall |
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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 |
Granted publication date: 20140219 Termination date: 20190822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |