CN212801593U - Locking notch structure of steel pipe pile cofferdam - Google Patents
Locking notch structure of steel pipe pile cofferdam Download PDFInfo
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- CN212801593U CN212801593U CN202021459511.7U CN202021459511U CN212801593U CN 212801593 U CN212801593 U CN 212801593U CN 202021459511 U CN202021459511 U CN 202021459511U CN 212801593 U CN212801593 U CN 212801593U
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- steel pipe
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Abstract
The utility model relates to a fore shaft structure of a steel pipe pile cofferdam, belonging to the technical field of cofferdam water stop, comprising a steel pipe pile standard pile and a steel pipe pile corner pile; the steel pipe pile standard pile consists of a steel pipe pile external convex part, a steel pipe pile internal concave part and a steel pipe pile body; the steel pipe pile body is a common steel pipe pile, and a pile tip is arranged at the bottom of the steel pipe pile body; the outer convex part of the steel pipe pile consists of an outer convex part supporting transverse plate, an outer convex part supporting vertical plate, an outer convex part frame and an outer convex part water stop strip; the utility model has the advantages of the bulk strength is high, and the fore shaft structure all is provided with stake point structure in the bottom, makes things convenient for the site operation, through outer convex part and interior concave part connection between steel-pipe pile and the steel-pipe pile, has multilayer waterproof sealing structure, and key position is equipped with the sealing strip, can effectively block in water gets into the cofferdam.
Description
Technical Field
The utility model belongs to the technical field of the cofferdam stagnant water, concretely relates to fore shaft structure in steel-pipe pile 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.
In the bridge foundation construction, when bridge piers and platform foundations are positioned below the ground surface water level, earth weirs in various forms are built according to local materials; in rivers with deep water and large flow velocity, sheet-pile or steel-sheet pile (single-layer or double-layer) cofferdams and many double-layer thin-wall steel cofferdams can be adopted. The cofferdam can be used for preventing water and enclosing water and can also be used for supporting the pit wall of the foundation pit.
It is generally required that: the cofferdam has the advantages of stable structural requirements, seepage prevention, impact resistance, strength, simple construction in construction, convenience in construction, maintenance and removal, smooth water flow in arrangement, no local scouring, reliability in cofferdam joint and bank slope joint, and capability of avoiding cofferdam failure caused by concentrated seepage and other destructive effects.
The existing cofferdam locking notch structure has no higher strength and has certain limitation in the aspects of water stopping and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that exists, the utility model provides a fore shaft structure in steel-pipe pile cofferdam mainly is effectual for developing a stagnant water, and intensity is high, and site operation is convenient, is favorable to shortening man-hour and reduces the fore shaft structure in steel-pipe pile cofferdam of cost.
The utility model adopts the technical scheme as follows:
the utility model relates to a fore shaft structure of steel-pipe pile cofferdam, including steel-pipe pile standard pile, steel-pipe pile corner pile, steel-pipe pile standard pile comprises steel-pipe pile convex part, steel-pipe pile concave part and steel-pipe pile body, and the steel-pipe pile body is ordinary steel-pipe pile, and its bottom is provided with the stake point; the outer convex part of the steel pipe pile consists of an outer convex part supporting transverse plate, an outer convex part supporting vertical plate, an outer convex part frame and an outer convex part water stop strip, wherein the outer convex part supporting transverse plate is a through long transverse plate and is vertically welded on the left side of the steel pipe pile body, the bottom of the left half section of the outer convex part supporting transverse plate is provided with an outer convex part supporting transverse plate pile tip, the bottom of the outer convex part supporting transverse plate pile tip is in a straight line shape along the transverse direction and is flush with the bottom of the pile tip, the left side of the outer convex part supporting transverse plate is provided with the outer convex part water stop strip, the outer convex part water stop strip is arranged into a curved surface, the radian of the curved surface is consistent with the radian of the steel pipe pile body, the bottom of the outer convex part water stop strip is provided with an iron outer convex part water stop strip pile tip, the outer convex part frame is a rectangular frame, the outer convex part supporting transverse central line, the right half section bottom of the outer convex part supporting transverse plate and the bottom of the outer convex part supporting vertical plate are contained in the outer convex part frame pile tips, and the outer convex part supporting transverse plate, the outer convex part frame and the outer convex part supporting vertical plate are welded into a whole; the inner concave part frame is welded on the right side of the steel pipe pile body and consists of two symmetrical bending plates, the length of the inner concave part frame is half of that of the outer convex part supporting transverse plate, the width of the inner concave part frame is consistent with that of the outer convex part frame, the inner side of the bending end of the inner concave part frame is provided with an inner concave part water stop strip, the distance between the two inner concave part water stop strips is consistent with that of the outer convex part supporting transverse plate, two inner concave part supports are arranged on the inner side of the middle part of the inner concave part frame, the end part of the inner concave part support is provided with the inner concave part water stop strip, the distance between the two inner concave part water stop strips is consistent with that of the outer convex part supporting transverse plate, the bottom of the inner concave part frame is provided with an inner concave;
the steel pipe pile corner pile consists of a steel pipe pile outer convex part, a steel pipe pile inner concave part and a steel pipe pile body, the steel pipe pile outer convex part is welded on the left side of the steel pipe pile body, the steel pipe pile inner concave part is welded on the lower side of the steel pipe pile body, and the arrangement mode of each part in the steel pipe pile outer convex part and the steel pipe pile inner concave part is consistent with that of each part in a steel pipe pile standard pile;
the outer convex part of steel-pipe pile is pegged graft with the cooperation of the inner concave part of steel-pipe pile, and the inner concave part supports and supports the diaphragm with outer convex part after pegging graft and divide into four cavitys with the inner concave part of steel-pipe pile, and the cavity from the upper right side begins anticlockwise to be first cavity, second cavity, third cavity, fourth cavity in proper order.
Further, outer convex part sealing rod and interior concave part sealing rod are water swelling rubber sealing rod.
Further, the water stopping method comprises the following steps: the outer convex part frame and the inner concave part frame are in close contact to form a basic seamless structure, if water enters the first cavity, the inner concave part water stop strip and the outer convex part support transverse plate are in close contact to prevent water from continuously flowing into the first cavity, and the first cavity, the second cavity, the third cavity and the fourth cavity form a multilayer waterproof sealing structure.
The utility model has the advantages that:
the utility model discloses an effect and advantage have multilayer waterproof sealing structure, and the stagnant water is effectual, and the cofferdam fore shaft structural strength who constitutes is high, the wholeness is good, simple structure, and safe and reliable can effectual solution installation complicacy, loaded down with trivial details, the construction cycle length scheduling problem of being under construction, is favorable to shortening man-hour and reduction cost.
Drawings
Fig. 1 is a top view of a standard steel pipe pile.
Fig. 2 is a plan view of the steel pipe pile corner pile.
Fig. 3 is a front view of the standard steel pipe pile.
Fig. 4 is a left side view of the standard steel pipe pile.
Fig. 5 is a front view of the steel pipe pile corner pile.
Fig. 6 is an enlarged view of a portion a in fig. 4.
Fig. 7 is an enlarged view at B in fig. 5.
Fig. 8 is a connection schematic diagram of a standard steel pipe pile.
FIG. 9 is a schematic diagram of connection between a steel pipe pile corner pile and a steel pipe pile standard pile.
In the figure: 1 is a standard pile of the steel pipe pile; 2, a steel pipe pile corner pile; 3 is an external convex part of the steel pipe pile; 4, an inner concave part of the steel pipe pile; 5 is a first cavity; 6 is a second cavity; 7 is a third cavity; 8 is a fourth cavity; 9, a steel pipe pile body; 3-1 is an outer convex part supporting transverse plate; 3-2 is an external convex part supporting vertical plate; 3-3 is an external convex frame; 3-4 is an external convex water stop strip; 4-1 is an inner concave part support; 4-2 is an inner concave part frame; 4-3 is a concave part water stop strip; 9-1 is a pile tip; 3-1-1 is an outer convex part for supporting the pile tip of the transverse plate; 3-3-1 is an outer convex part frame pile tip; 3-4-1 is the outer convex part water stop strip pile tip; 4-2-1 is an inward concave frame pile tip.
Detailed Description
The invention will be described in more detail below with reference to the following figures and examples:
example (b): a fore shaft structure of a steel pipe pile cofferdam comprises a steel pipe pile standard pile and a steel pipe pile corner pile.
As shown in fig. 1 to 7, a standard steel pipe pile 1 comprises a steel pipe pile male part 3, a steel pipe pile female part 4 and a steel pipe pile body 9, wherein the steel pipe pile body 9 is a common steel pipe pile, and the bottom of the steel pipe pile body is provided with a pile tip 9-1; the steel pipe pile outer convex part 3 consists of an outer convex part supporting transverse plate 3-1, an outer convex part supporting vertical plate 3-2, an outer convex part frame 3-3 and an outer convex part water stop strip 3-4, wherein the outer convex part supporting transverse plate 3-1 is a through long transverse plate and is vertically welded on the left side of the steel pipe pile body 9, the bottom of the left half section of the outer convex part supporting transverse plate 3-1 is provided with an outer convex part supporting transverse plate pile tip 3-1-1, the bottom of the outer convex part supporting transverse plate pile tip 3-1 is linear along the transverse direction and is flush with the bottom of the pile tip 9-1, the left side of the outer convex part supporting transverse plate 3-1 is provided with an outer convex part water stop strip 3-4, the outer convex part water stop strip 3-4 is provided with a curved surface, the radian of the curved surface is consistent with the radian of the steel pipe pile body 9, the bottom of the outer convex part water stop strip 3-4, the outer convex part frame 3-3 is a rectangular frame, the outer convex part supporting transverse plate 3-1 is welded on the left side of the steel pipe pile body 9 as a transverse central line, the length of the outer convex part frame 3-3 is half of that of the outer convex part supporting transverse plate 3-1, an outer convex part supporting vertical plate 3-2 is arranged on the vertical central line of the outer convex part frame 3-3, the bottom of the outer convex part frame 3-3 is provided with an outer convex part frame pile tip 3-3-1 with an isosceles triangle section, the right half section bottom of the outer convex part supporting transverse plate 3-1 and the bottom of the outer convex part supporting vertical plate 3-2 are contained in the outer convex part frame pile tip 3-3-1, and the outer convex part supporting transverse plate 3-1, the outer convex part frame 3-3 and the outer convex part supporting vertical plate 3; an inner concave part frame 4-2 is welded on the right side of the steel pipe pile body 9, the inner concave part frame 4-2 is composed of two symmetrical bending plates, the length of the inner concave part frame 4-2 is half of the length of an outer convex part supporting transverse plate 3-1, the width is consistent with the width of the outer convex part frame 3-3, an inner concave part water stop strip 4-3 is arranged on the inner side of the bending end of the inner concave part frame 4-2, the distance between the two inner concave part water stop strips 4-3 is consistent with the width of an outer convex part supporting transverse plate 3-1, two inner concave part supports 4-1 are arranged on the inner side of the middle part of the inner concave part frame 4-2, the end part of the inner concave part support 4-1 is provided with the inner concave part water stop strip 4-3, the distance between the two inner concave part water stop strips 4-3 is consistent with the width of the outer convex part supporting transverse plate 3-1, and an inner 2-1, the bottom of the concave part support 4-1 is contained in a concave part frame pile tip 4-2-1;
the steel pipe pile corner pile 2 is composed of a steel pipe pile outer convex part 3, a steel pipe pile inner concave part 4 and a steel pipe pile body 9, the steel pipe pile outer convex part 3 is welded on the left side of the steel pipe pile body 9, the steel pipe pile inner concave part 4 is welded on the lower side of the steel pipe pile body 9, and the arrangement mode of each part in the steel pipe pile outer convex part 3 and the steel pipe pile inner concave part 4 is consistent with that of each part in the steel pipe pile standard pile 1;
the steel pipe pile outer convex part 3 is matched and spliced with the steel pipe pile inner concave part 4, the steel pipe pile inner concave part 4 is divided into four cavities by the inner concave part support 4-1 and the outer convex part support transverse plate 3-1 after splicing, and the first cavity 5, the second cavity 6, the third cavity 7 and the fourth cavity 8 are sequentially arranged from the cavity at the upper right counterclockwise.
As shown in fig. 8 and 9, the steel pipe pile outer convex part 3 is matched and spliced with the steel pipe pile inner concave part 4, the steel pipe pile inner concave part 4 is divided into four cavities by the spliced inner concave part support 4-1 and the outer convex part support transverse plate 3-1, and the first cavity 5, the second cavity 6, the third cavity 7 and the fourth cavity 8 are sequentially arranged from the cavity at the upper right side in an anticlockwise manner; during site construction, a steel pipe pile standard pile is driven in according to design requirements, then an outer convex part supporting transverse plate of a second steel pipe pile standard pile is aligned to a gap between inner concave part frames and is driven into a soil body, an outer convex part water stop strip is tightly attached to the outer wall of a steel pipe pile body in the driving process, a plurality of steel pipe pile standard piles are sequentially driven in, steel pipe pile corner piles are placed at places needing corners, the steel pipe pile standard piles are placed again according to the same installation method, and until the construction of all steel pipe pile cofferdams is completed.
As shown in fig. 1 to 9, the water stopping method comprises: the outer convex part frame 3-3 is in close contact with the inner concave part frame 4-2 to form a basically seamless structure, if water enters the first cavity 5, the inner concave part water stop strip 4-3 is in close contact with the outer convex part supporting transverse plate 3-1 to prevent the water from continuously flowing in, and the first cavity 5, the second cavity 6, the third cavity 7 and the fourth cavity 8 form a multilayer waterproof sealing structure.
The outer convex part water stop strip 3-4 and the inner concave part water stop strip 4-3 are water swelling rubber water stop strips.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The utility model provides a fore shaft structure in steel-pipe pile cofferdam, includes steel-pipe pile standard pile (1), steel-pipe pile corner pile (2), its characterized in that:
the standard steel pipe pile (1) consists of a steel pipe pile convex part (3), a steel pipe pile concave part (4) and a steel pipe pile body (9), wherein the steel pipe pile body (9) is a common steel pipe pile, and the bottom of the steel pipe pile body is provided with a pile tip (9-1); the steel pipe pile outer convex part (3) consists of an outer convex part supporting transverse plate (3-1), an outer convex part supporting vertical plate (3-2), an outer convex part frame (3-3) and an outer convex part water stop strip (3-4), the outer convex part supporting transverse plate (3-1) is a through long transverse plate and is vertically welded on the left side of the steel pipe pile body (9), an outer convex part supporting transverse plate pile tip (3-1-1) is arranged at the bottom of the left half section of the outer convex part supporting transverse plate (3-1), the bottom of the outer convex part supporting transverse plate pile tip (3-1-1) is transversely linear and is flush with the bottom of the pile tip (9-1), the left side of the outer convex part supporting transverse plate (3-1) is provided with the outer convex part water stop strip (3-4), and the outer convex part water stop strip (3-4) is arranged into a curved surface, the radian of the curved surface is consistent with that of the steel pipe pile body (9), the bottom of the outer convex water stop strip (3-4) is provided with an iron outer convex water stop strip pile tip (3-4-1), the outer convex frame (3-3) is a rectangular frame, the outer convex support transverse plate (3-1) is welded on the left side of the steel pipe pile body (9) as a transverse central line, the length of the outer convex frame (3-3) is half of that of the outer convex support transverse plate (3-1), an outer convex support vertical plate (3-2) is arranged on the vertical central line of the outer convex frame (3-3), the bottom of the outer convex frame (3-3) is provided with the outer convex frame pile tip (3-3-1) with an isosceles triangle section, and the right half bottom of the outer convex support transverse plate (3-1) and the bottom of the outer convex support vertical plate (3-2) are both contained in the outer convex frame pile tip (3-3 -1), the outer convex part supporting transverse plate (3-1), the outer convex part frame (3-3) and the outer convex part supporting vertical plate (3-2) are welded into a whole; the inner concave part frame (4-2) is welded on the right side of the steel pipe pile body (9), the inner concave part frame (4-2) is composed of two symmetrical bending plates, the length of the inner concave part frame (4-2) is half of the length of the outer convex part supporting transverse plate (3-1), the width is consistent with that of the outer convex part frame (3-3), the inner side of the bending end of the inner concave part frame (4-2) is provided with the inner concave part water stop strip (4-3), the distance between the two inner concave part water stop strips (4-3) is consistent with that of the outer convex part supporting transverse plate (3-1), the inner side of the middle part of the inner concave part frame (4-2) is provided with the two inner concave part supports (4-1), the end part of the inner concave part support (4-1) is provided with the inner concave part water stop strip (4-3), the distance between the two inner concave part water stop strips (4-3) is consistent with that, the bottom of the inner concave part frame (4-2) is provided with an inner concave part frame pile tip (4-2-1) with an isosceles triangle section, and the bottom of the inner concave part support (4-1) is contained in the inner concave part frame pile tip (4-2-1);
the steel pipe pile corner pile (2) is composed of a steel pipe pile outer convex part (3), a steel pipe pile inner concave part (4) and a steel pipe pile body (9), the steel pipe pile outer convex part (3) is welded on the left side of the steel pipe pile body (9), the steel pipe pile inner concave part (4) is welded on the lower side of the steel pipe pile body (9), and the arrangement modes of all parts in the steel pipe pile outer convex part (3) and the steel pipe pile inner concave part (4) are consistent with the arrangement modes of all parts in the steel pipe pile standard pile (1);
the steel pipe pile outer convex part (3) is matched and spliced with the steel pipe pile inner concave part (4), the steel pipe pile inner concave part (4) is divided into four cavities by the splicing back inner concave part support (4-1) and the outer convex part support transverse plate (3-1), and the first cavity (5), the second cavity (6), the third cavity (7) and the fourth cavity (8) are sequentially arranged from the cavity at the upper right counterclockwise.
2. The fore shaft structure of the steel pipe pile cofferdam of claim 1, characterized in that: the outer convex part water stop strip (3-4) and the inner concave part water stop strip (4-3) are water swelling rubber water stop strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021459511.7U CN212801593U (en) | 2020-07-22 | 2020-07-22 | Locking notch structure of steel pipe pile cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021459511.7U CN212801593U (en) | 2020-07-22 | 2020-07-22 | Locking notch structure of steel pipe pile cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212801593U true CN212801593U (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021459511.7U Expired - Fee Related CN212801593U (en) | 2020-07-22 | 2020-07-22 | Locking notch structure of steel pipe pile cofferdam |
Country Status (1)
| Country | Link |
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| CN (1) | CN212801593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733843A (en) * | 2020-07-22 | 2020-10-02 | 沈阳促晋科技有限公司 | Locking notch structure of steel pipe pile cofferdam and water stopping method thereof |
-
2020
- 2020-07-22 CN CN202021459511.7U patent/CN212801593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733843A (en) * | 2020-07-22 | 2020-10-02 | 沈阳促晋科技有限公司 | Locking notch structure of steel pipe pile cofferdam and water stopping method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210326 Termination date: 20210722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |