CN213143097U - Steel sheet pile wall closure structure - Google Patents
Steel sheet pile wall closure structure Download PDFInfo
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- CN213143097U CN213143097U CN202021693455.3U CN202021693455U CN213143097U CN 213143097 U CN213143097 U CN 213143097U CN 202021693455 U CN202021693455 U CN 202021693455U CN 213143097 U CN213143097 U CN 213143097U
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Abstract
The utility model relates to a steel sheet pile wall closure structure, including last steel sheet pile, closure steel sheet pile, bolt, steel-pipe pile and compound geotechnological cloth. The last steel sheet pile and the closure steel sheet pile are positioned at two sides of the closure opening, partial areas of webs of the last steel sheet pile and the closure steel sheet pile are mutually attached, bolt holes are reserved on the webs of the last steel sheet pile and the closure steel sheet pile which are mutually attached, and the last steel sheet pile and the closure steel sheet pile are mutually and fixedly connected together through bolts; steel pipe piles are arranged between the corresponding side webs and flanges of the last steel sheet pile and the closure steel sheet pile; and the gaps enclosed by the webs, flanges and the steel pipe piles which are arranged on the same sides of the last steel sheet pile and the closure steel sheet pile and correspond to the steel sheet pile are filled with composite geotextile. The utility model provides an in-process of closure of steel sheet pile wall adopt special-shaped steel sheet pile inefficiency, problem with high costs, improved steel sheet pile wall closure efficiency and construction safety nature, easy operation, economical and practical.
Description
Technical Field
The utility model relates to a cofferdam closure technique in the hydraulic engineering construction, concretely relates to steel sheet pile wall closure structure.
Background
In recent years, the steel sheet pile cofferdam is widely applied to large-scale hydraulic engineering. When the cofferdam is large in scale, in order to accelerate the cofferdam construction speed, the cofferdam needs to be erected from two sides to the middle, so that the closure problem of the steel sheet piles is encountered in the middle. Or the cofferdam is annular, and the closure problem can also be caused when the cofferdam starts from one end and then returns to the position. When the closure problem is encountered, the optimal working condition is that the residual closure is just one steel sheet pile width. However, due to factors such as the length of the axis of the cofferdam, construction process errors, inconsistent verticality of the steel sheet piles and the like, the final closure width cannot be equal to the width of a single steel sheet pile. At present, the more solutions are to use special-shaped steel sheet piles, that is, the width of the closure special-shaped pile is determined according to the final closure width, and then the steel sheet pile is processed in a steel sheet pile factory or welded on site. The long time is needed for the factory welding to be transported to a construction site, the construction quality is difficult to guarantee due to the limited conditions of the site welding, and the welding seam is easy to separate, so that the closure connection of the steel plate pile wall has the problems of complex operation, long reserved time of a closure opening, large manpower and material resource investment and the like. Particularly, when the cofferdam engineering is positioned on the coast, the large water level difference is generated at the position of the closure opening for a long time along with the tide rise and the tide fall every day, the closure opening can be continuously brushed, the safety of the cofferdam at the closure opening section is influenced, and the closure difficulty of the closure opening is deepened.
SUMMERY OF THE UTILITY MODEL
The utility model provides a steel sheet pile wall closure structure to the problem that prior art exists, reaches purposes such as easy operation, economical and practical, construction safety.
The technical scheme of the utility model is that:
a steel sheet pile wall closure structure comprises a last steel sheet pile, a closure steel sheet pile, a steel pipe pile and composite geotextile, wherein the last steel sheet pile and the closure steel sheet pile are positioned at two sides of a closure opening, partial areas of webs of the last steel sheet pile and the closure steel sheet pile are mutually attached, bolt holes are reserved on the webs of the last steel sheet pile and the closure steel sheet pile which are mutually attached, and the last steel sheet pile and the closure steel sheet pile are fixedly connected together through bolts; steel pipe piles are arranged between the web and the flange of the last steel sheet pile and the closure steel sheet pile which are on the same side; and a gap enclosed by the web plate, the flange and the steel pipe pile which are on the same side of the last steel sheet pile and the closure steel sheet pile and correspond to each other is filled with composite geotextile.
In the scheme, an outer river side steel pipe pile is arranged between the web of the last steel sheet pile and the flange of the closure steel sheet pile in a driving mode, and a cofferdam side steel pipe pile is arranged between the web of the closure steel sheet pile and the flange of the last steel sheet pile in a driving mode.
And the gaps enclosed by the steel pipe piles at the outer river side, the webs of the last steel sheet piles and the flanges of the closure steel sheet piles are filled with composite geotextile at the outer river side, and the gaps enclosed by the steel pipe piles at the cofferdam side, the webs of the closure steel sheet piles and the flanges of the last steel sheet piles are filled with composite geotextile at the cofferdam side.
The last steel sheet pile and the closure steel sheet pile are of U-shaped steel sheet pile structures.
The bolt holes are arranged in one row or multiple rows, and the bolt hole positions which are vertically arranged towards the bottommost part are arranged below 2m of a mud surface or a coating surface.
The distance between the last steel sheet pile and the closure steel sheet pile is smaller than the width of a single steel sheet pile web.
The utility model has the advantages that: the utility model provides an in-process that closes a lock of steel sheet pile wall adopt special-shaped steel sheet pile inefficiency, with high costs, adopt the spot welding, the quality is difficult to guarantee, the welding seam is thrown off the scheduling problem easily, has improved steel sheet pile wall and has closed a lock of efficiency and construction security to easy operation, economical and practical.
Drawings
FIG. 1 is a schematic plan view of the present invention;
fig. 2 is a schematic view of the vertical structure of the present invention.
In the figure: 1-final steel sheet pile; 2-closing a steel sheet pile; 3-a bolt; 4-steel pipe pile; 5-composite geotextile; 41-external river side steel pipe pile; 42-cofferdam side steel pipe pile; 51-outer river side composite geotextile; and 52-composite geotextile at the cofferdam side.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the steel sheet pile wall closure structure of the present invention comprises a last steel sheet pile 1, a closure steel sheet pile 2, a steel pipe pile 4 and a composite geotextile 5, wherein the last steel sheet pile 1 and the closure steel sheet pile 2 are located at two sides of a closure opening, partial areas of webs of the last steel sheet pile 1 and the closure steel sheet pile 2 are tightly attached to each other, bolt holes are reserved on webs of the last steel sheet pile 1 and the closure steel sheet pile 2 which are tightly attached to each other, and the last steel sheet pile 1 and the closure steel sheet pile 2 are fixedly connected together through bolts 3; a steel pipe pile 4 is arranged between the web plate and the flange which are on the same side of the last steel sheet pile 1 and the closure steel sheet pile 2; and a gap enclosed by the web plate and the flange which are on the same side corresponding to the last steel sheet pile 1 and the closure steel sheet pile 2 and the steel pipe pile 4 is filled with composite geotextile 5.
Specifically, an outer river side steel pipe pile 41 is arranged between a web of the last steel sheet pile 1 and a flange of the closure steel sheet pile 2 in a driving mode, a cofferdam side steel pipe pile 42 is arranged between the web of the closure steel sheet pile 2 and the flange of the last steel sheet pile 1 in a driving mode, a gap enclosed by the outer river side steel pipe pile 41, the web of the last steel sheet pile 1 and the flange of the closure steel sheet pile 2 is filled with outer river side composite geotextile 51, and a gap enclosed by the cofferdam side steel pipe pile 42, the web of the closure steel sheet pile 2 and the flange of the last steel sheet pile 1 is filled with cofferdam side composite geotextile 52.
The final steel sheet pile 1 and the closure steel sheet pile 2 are of U-shaped steel sheet pile structures.
The bolt holes are arranged in one row or a plurality of rows, and the bolt holes at the lowest part are arranged below the mud surface (coating surface) 2 m.
The distance between the last steel sheet pile 1 and the closure steel sheet pile 2 is smaller than the width of the web plate of the single steel sheet pile.
The utility model discloses a construction steps as follows:
(1) sequentially driving the steel sheet piles one by one to enable the width of the residual closure gap to be less than twice of the width of the steel sheet piles, and adjusting the angle of the steel sheet pile walls in the driving process to enable the distance between the steel sheet pile walls on the two sides of the closure gap to be about twice of the width of the steel sheet piles;
(2) and the two sides of the closure are sequentially provided with a final steel sheet pile 1 and a closure steel sheet pile 2. When constructing the final steel sheet pile 1 and the closure steel sheet pile 2, the two are rotated along small angles, so that the webs can be tightly attached to each other.
(3) Slowly pulling up the last steel sheet pile 1 and the closure steel sheet pile 2, constructing a row of bolt holes from the pile top according to the distance of 50cm, and vertically positioning the bolt holes at the bottommost part below a mud surface (coating surface) 2 m;
(4) penetrating bolts 3 into the bolt holes, and screwing the bolts so that the last steel sheet pile 1 and the closure steel sheet pile 2 are spliced into a special-shaped steel sheet pile through the bolts 3 on site;
(5) slowly driving the final steel sheet pile 1 and the closure steel sheet pile 2 together, and driving to a designed elevation;
(6) and an outer river side steel pipe pile 41 is arranged between the web of the last steel sheet pile 1 and the flange of the closure steel sheet pile 2, and a cofferdam side steel pipe pile 42 is arranged between the web of the closure steel sheet pile 2 and the flange of the last steel sheet pile 1. The gap enclosed by the steel pipe pile 41 at the outer river side, the web plate of the final steel plate pile 1 and the flange of the closure steel plate pile 2 is filled with the composite geotextile 51 at the outer river side; and filling the cofferdam side composite geotextile 52 in the gap enclosed by the cofferdam side steel pipe pile 42, the web of the closure steel sheet pile 2 and the flange of the last steel sheet pile 1.
The above embodiments are described in connection with the accompanying drawings, but should not be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which all fall within the scope of the present invention.
Claims (6)
1. The utility model provides a steel sheet pile wall closure structure which characterized in that: the composite geotextile comprises a last steel sheet pile, a closure steel sheet pile, a steel pipe pile and composite geotextile, wherein the last steel sheet pile and the closure steel sheet pile are positioned at two sides of a closure opening, partial areas of webs of the last steel sheet pile and the closure steel sheet pile are mutually attached, bolt holes are reserved on the webs of the last steel sheet pile and the closure steel sheet pile which are mutually attached, and the last steel sheet pile and the closure steel sheet pile are fixedly connected together through bolts; steel pipe piles are arranged between the webs and flanges on the same side corresponding to the final steel sheet pile and the closure steel sheet pile; and composite geotextile is filled in gaps enclosed among the web plate, the flange and the steel pipe pile which are on the same side and correspond to the last steel sheet pile and the closure steel sheet pile.
2. The closure structure of steel sheet pile wall according to claim 1, characterized in that: and a cofferdam side steel pipe pile is arranged between the web of the last steel sheet pile and the flange of the closure steel sheet pile.
3. The closure structure of steel sheet pile wall according to claim 2, characterized in that: the composite geotextile for the outer river side is filled in a gap enclosed by the web of the steel pipe pile on the outer river side, the web of the last steel sheet pile and the flange of the closure steel sheet pile, and the composite geotextile for the cofferdam side is filled in a gap enclosed by the web of the steel pipe pile on the cofferdam side, the web of the closure steel sheet pile and the flange of the last steel sheet pile.
4. The closure structure of steel sheet pile wall according to claim 1, characterized in that: the last steel sheet pile and the closure steel sheet pile are of U-shaped steel sheet pile structures.
5. The closure structure of steel sheet pile wall according to claim 1, characterized in that: the bolt holes are arranged in one row or multiple rows, and the bolt hole positions which are vertically arranged towards the bottommost part are arranged below 2m of a mud surface or a coating surface.
6. The closure structure of steel sheet pile wall according to claim 1, characterized in that: the distance between the last steel sheet pile and the closure steel sheet pile is smaller than the width of a single steel sheet pile web.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021693455.3U CN213143097U (en) | 2020-08-14 | 2020-08-14 | Steel sheet pile wall closure structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021693455.3U CN213143097U (en) | 2020-08-14 | 2020-08-14 | Steel sheet pile wall closure structure |
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| Publication Number | Publication Date |
|---|---|
| CN213143097U true CN213143097U (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021693455.3U Active CN213143097U (en) | 2020-08-14 | 2020-08-14 | Steel sheet pile wall closure structure |
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| CN (1) | CN213143097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075270A (en) * | 2022-07-07 | 2022-09-20 | 广东省源天工程有限公司 | Double-layer steel sheet pile cofferdam |
-
2020
- 2020-08-14 CN CN202021693455.3U patent/CN213143097U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075270A (en) * | 2022-07-07 | 2022-09-20 | 广东省源天工程有限公司 | Double-layer steel sheet pile cofferdam |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 310002, No. 66, Funing lane, Shangcheng District, Zhejiang, Hangzhou Patentee after: Zhejiang water resources and Hydropower Survey and Design Institute Co.,Ltd. Address before: 310002, No. 66, Funing lane, Shangcheng District, Zhejiang, Hangzhou Patentee before: ZHEJIANG DESIGN INSTITUTE OF WATER CONSERVANCY & HYDROELECTRIC POWER |
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| CP01 | Change in the name or title of a patent holder |