CN212688986U

CN212688986U - Double-row steel pipe pile cofferdam

Info

Publication number: CN212688986U
Application number: CN202021294376.5U
Authority: CN
Inventors: 张建伟; 唐维韦
Original assignee: Wuxi Navigation Project Co ltd
Current assignee: Wuxi Navigation Project Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2021-03-12
Anticipated expiration: 2030-07-04

Abstract

The utility model relates to a double steel-pipe pile cofferdam, it includes two rows of steel-pipe piles and canvas, is equipped with the plank of the vertical setting of a plurality of between steel-pipe pile and the canvas, and a plurality of plank is hugged closely head and the tail each other and is half-circular arc setting, and the plank is the arc setting, and the plank is hugged closely with the steel-pipe pile, and the bottom of plank is inserted at the bottom of a river. The utility model has the advantages of improve cofferdam structural strength.

Description

Double-row steel pipe pile cofferdam

Technical Field

The utility model belongs to the technical field of the technique in cofferdam and specifically relates to a double steel-pipe pile cofferdam is related to.

Background

Hydraulic engineering buildings can not be separated from water, a plurality of hydraulic engineering buildings are built in water or on the bank, a construction cofferdam is built for creating the condition of dry land construction, and the conventional construction cofferdam comprises the following components: earth rock cofferdam, steel sheet pile cofferdam, steel pipe pile cofferdam and the like.

The current chinese patent with publication number CN206956747U discloses a double-row arc-shaped steel pipe pile cofferdam, which comprises steel pipe piles and canvas, wherein the steel pipe piles are arranged in two rows and the lower ends of the steel pipe piles are inserted into the river bottom, the outward arc-shaped distribution of the steel pipe piles exists, the distance exists between two adjacent steel pipe piles, horizontal steel pipes which are transversely connected are respectively arranged on two sides of the two rows of arc-shaped steel pipe piles, the canvas is arranged on the inner walls of the two rows of arc-shaped steel pipe piles, and earth is arranged between the canvas to form.

The steel pipe pile can be arranged into a semi-circular ring type and a full-circular ring type according to different construction positions, and can meet the requirements of various engineering constructions. However, because there is the clearance between the steel-pipe pile, some more sharp-pointed rubbish in aqueous can rip the sail, and the earth that the canvas intussuseption was filled receives the impact of rivers and can run off gradually, and earth runs off and can reduce the holistic structural strength of cofferdam, exists obvious not enoughly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a double steel-pipe pile cofferdam, has the advantage that improves cofferdam structural strength to the not enough of prior art existence.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a double steel-pipe pile cofferdam, includes two rows of steel-pipe piles and canvas, be equipped with the plank of the vertical setting of a plurality of between steel-pipe pile and the canvas, a plurality of plank is hugged closely head and the tail each other and is the half-circular arc setting, the plank is the arc setting, the plank is hugged closely with the steel-pipe pile, the bottom of plank is inserted at the bottom of a river.

Through adopting above-mentioned technical scheme, set up the plank and separate canvas and river to this has reduced the damaged earth that leads to of canvas and has run off, causes the possibility that cofferdam structural strength reduces. The utility model discloses a setting of plank is favorable to improving the structural strength in cofferdam.

The present invention may be further configured in a preferred embodiment as: and one side of the wood board, which is tightly attached to the steel pipe pile, is coated with a waterproof coating.

Through adopting above-mentioned technical scheme, the aquatic of plank soaking for a long time takes place easily to rot, and the plank that rot is more fragile easily damaged, and waterproof coating's setting can reduce the possibility that the plank is rotten, is favorable to improving the structural strength of cofferdam.

The present invention may be further configured in a preferred embodiment as: the bottom end of the wood board is arranged in a V shape.

By adopting the technical scheme, the V-shaped arrangement enables construction workers to insert the wood board into the river bottom more conveniently.

The present invention may be further configured in a preferred embodiment as: the top end of one side, close to the steel pipe pile, of the wood board is provided with a plurality of arc-shaped fixing holes, and the steel pipe pile is fastened with the fixing holes through steel wire ropes.

Through adopting above-mentioned technical scheme, wire rope passes the fixed orifices and is connected steel-pipe pile and plank fastening to this intensity that has improved cofferdam overall structure is favorable to improving the protecting against shock performance of cofferdam.

The present invention may be further configured in a preferred embodiment as: a vertical mounting plate is arranged between the canvas and the wood plate, the mounting plate comprises a bottom plate and two side plates connected with the same side of the bottom plate, the bottom plate and the two side plates are arranged in a concave shape, the two adjacent wood plates are respectively provided with an accommodating groove for accommodating the side plates, a plurality of through holes are vertically arranged on the side plates, inserting rods are slidably arranged in the through holes in a penetrating way and are in a step-shaped device, the diameter of the inserting rod between the two side plates is larger than that of the rod body which is arranged in the through hole in a sliding and penetrating way, the insertion rod is sleeved with a spring, one end of the spring is abutted against the side plate, the other end of the spring is abutted against the end surface of the step on the insertion rod, two opposite sides of the two side plates are respectively provided with a push-pull rod, the one end that the peg graft pole diameter is less is connected on the push-and-pull rod, it has the bayonet socket that supplies the peg graft pole male to open on the relative peg graft pole's of holding tank lateral wall.

Through adopting above-mentioned technical scheme, construction worker struts two push-and-pull rods, then puts into the holding tank with the curb plate and unclamps the push-and-pull rod, and the spring promotes the peg graft pole and inserts in the spliced eye to this makes two planks hug closely, has improved the joint strength between plank and the plank.

The present invention may be further configured in a preferred embodiment as: one end of the insertion rod inserted in the insertion hole is arranged in a conical shape.

Through adopting above-mentioned technical scheme, more convenience when the toper setting makes the spliced pole insert in the spliced eye.

The present invention may be further configured in a preferred embodiment as: the push-pull rod is connected with a push-pull handle.

Through adopting above-mentioned technical scheme, push-and-pull handle makes more convenient the snatching when construction worker manual push-and-pull handle.

The present invention may be further configured in a preferred embodiment as: one of two side walls, which are tightly attached to two adjacent wood boards, is connected with an inserting strip, the other side wall is provided with an inserting groove for the inserting strip to insert, the inserting strip and the inserting groove are vertically arranged, the cross sections of the inserting strip and the inserting groove are arranged in a dovetail shape, and the inserting groove is in sliding connection with the inserting strip.

By adopting the technical scheme, the sliding fit of the inserting strips and the inserting grooves reduces the possibility of radian dislocation between two adjacent boards when the boards are inserted into the river bottom.

To sum up, the utility model discloses a following beneficial technological effect: through set up the plank between canvas and steel-pipe column, separate canvas and river to this has reduced the damaged possibility that leads to earth loss of canvas, is favorable to improving the holistic structural strength of cofferdam.

Drawings

Fig. 1 is a schematic structural diagram for embodying the present invention;

FIG. 2 is a cross-sectional view showing the connection relationship among the insertion strips, the insertion grooves, the accommodating grooves and the insertion holes;

FIG. 3 is a schematic structural diagram showing the connection relationship among the mounting plate, the through hole, the insertion rod and the spring;

fig. 4 is a sectional view showing a connection relationship among the steel pipe pile, the waterproof coating layer, and the fixing hole.

In the figure, 1, a steel pipe pile; 2. canvas; 3. a wood board; 4. a water-resistant coating; 5. a fixing hole; 6. mounting a plate; 7. a base plate; 8. a side plate; 9. accommodating grooves; 10. a through hole; 11. a plug rod; 12. a spring; 13. a push-pull rod; 14. inserting holes; 15. a push-pull handle; 16. inserting strips; 17. and (4) inserting grooves.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a double steel-pipe pile 1 cofferdam, including two rows of steel-pipe piles 1 and canvas 2, be equipped with the plank 3 of the vertical setting of a plurality of between steel-pipe pile 1 and the canvas 2, a plurality of plank 3 is hugged closely head and tail each other and is the half-circular arc setting, and plank 3 is the arc setting, and plank 3 is hugged closely with steel-pipe pile 1, and the bottom of plank 3 is inserted at the river bottom. The wood board 3 is arranged to separate the canvas 2 from river water, so that the possibility of soil loss caused by damage of the canvas 2 is reduced, and the structural strength of the cofferdam is improved.

Referring to fig. 2 and 4, one side of the wood board 3, which is tightly attached to the steel pipe pile 1, is coated with the waterproof coating 4, the wood board 3 is easy to rot after being soaked in water for a long time, and the waterproof coating 4 is arranged to reduce the possibility that the wood board 3 is rotted and becomes brittle, which is beneficial to improving the structural strength of the cofferdam.

Referring to fig. 1 and 4, the top end of one side of the wood plate 3, which is close to the steel pipe pile 1, is provided with a plurality of arc-shaped fixing holes 5, and the steel pipe pile 1 is fastened with the fixing holes 5 through steel wire ropes. Through the fixing holes 5 and the steel wire ropes, the wood plate 3 and the steel pipe pile 1 are fastened and connected, the structural strength of the cofferdam is improved, and the impact resistance of the cofferdam is enhanced.

Referring to fig. 2, the two side walls of two adjacent boards 3 are glued with the splicing strips 16, the other side wall is provided with a splicing groove 17 for the splicing strips 16 to insert, the splicing groove 17 and the splicing strips 16 are vertically arranged, the cross sections of the splicing strips 16 and the splicing grooves 17 are arranged in a dovetail shape, and the splicing grooves 17 are in sliding connection with the splicing strips 16. The sliding fit of the insertion grooves 17 and the insertion strips 16 improves the radian of connection between the wood boards 3 and the wood boards 3, and reduces the possibility of dislocation between two adjacent wood boards 3 when the wood boards 3 are inserted into the river bottom.

Referring to fig. 2, the bottom end of the wood board 3 is arranged in a V shape, and the V shape enables a constructor to insert the wood board 3 into the river bottom more conveniently when constructing the cofferdam.

Referring to fig. 3, a vertical mounting plate 6 is arranged between the canvas 2 and the wood plate 3, the mounting plate 6 comprises a bottom plate 7 and two side plates 8 which are connected to the same side of the bottom plate 7 in a gluing mode, the two side plates 8 are parallel to each other, and the bottom plate 7 and the two side plates 8 are arranged in a concave mode. And the two adjacent wood boards 3 are respectively provided with accommodating grooves 9 for accommodating the side plates 8.

Referring to fig. 2 and 3, a plurality of through holes 10 are vertically formed in the side plate 8, and insertion rods 11 are slidably arranged in the through holes 10 in a penetrating manner. The sidewall of the insertion rod 11 opposite to the accommodation groove 9 is provided with an insertion hole 14 for inserting the insertion rod 11, and one end of the insertion rod 11 inserted in the insertion hole 14 is arranged in a conical shape. The tapered arrangement facilitates insertion of the connector rod 11 into the connector bore 14. The conical tip of the plug rod 11 abuts against the bottom of the plug bore 14.

Referring to fig. 3, the insertion rod 11 is arranged in a step shape, the diameter of the rod body of the insertion rod 11 between the two side plates 8 is larger than the diameter of the rod body which is slidably arranged in the through hole 10, the insertion rod 11 is sleeved with a spring 12, one end of the spring 12 abuts against the side plate 8, and the other end of the spring abuts against the end face of the step on the insertion rod 11.

Referring to fig. 3, two opposite sides of the two side plates 8 are respectively provided with a push-pull rod 13, the push-pull rods 13 are vertically arranged, and one end of the insertion rod 11 with a smaller diameter is glued to the push-pull rods 13. The insertion rods 11 are inserted into the insertion holes 14, so that the structural strength of connection between the wood boards 3 is improved, and the two wood boards 3 are tightly attached. The push-pull rod 13 is glued with a push-pull handle 15, and the push-pull handle 15 enables a construction worker to more conveniently grab when manually pushing and pulling the push-pull handle 15.

The implementation principle of the embodiment is as follows: when a constructor builds the cofferdam, firstly the steel pipe piles 1 and the wood boards 3 are inserted into the river bottom, and then water between the two rows of wood boards 3 is pumped out through pumping equipment. The construction worker manually struts the two push-pull hand rods and puts the side plates 8 into the accommodating grooves 9, and the insertion rods 11 are inserted into the insertion holes 14 so as to realize the fastening connection between the wood boards 3. Canvas 2 is then laid between the two rows of planks 3 and filled with soil. The utility model discloses a setting up of plank 3 separates river and canvas 2, has reduced the damaged earth that causes of canvas 2 and has run off the possibility that leads to cofferdam structural strength to reduce.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a double steel-pipe pile cofferdam, includes two rows of steel-pipe piles (1) and canvas (2), its characterized in that: plank (3) that are equipped with the vertical setting of a plurality of between steel-pipe pile (1) and canvas (2), a plurality of plank (3) are hugged closely head and the tail each other and are the half-circular arc setting, plank (3) are the arc setting, plank (3) are hugged closely with steel-pipe pile (1), insert at the bottom of a river in the bottom of a river.

2. The double-row steel pipe pile cofferdam of claim 1, wherein: and one side of the wood board (3) clinging to the steel pipe pile (1) is coated with a waterproof coating (4).

3. The double-row steel pipe pile cofferdam of claim 1, wherein: the bottom end of the wood board (3) is arranged in a V shape.

4. The double-row steel pipe pile cofferdam of claim 1, wherein: the top end of one side, close to the steel pipe pile (1), of the wood board (3) is provided with a plurality of arc-shaped fixing holes (5), and the steel pipe pile (1) is fastened with the fixing holes (5) through steel wire ropes.

5. The double-row steel pipe pile cofferdam of claim 1, wherein: a vertical mounting plate (6) is arranged between the canvas (2) and the wood boards (3), the mounting plate (6) comprises a bottom plate (7) and two side plates (8) connected to the same side of the bottom plate (7), the bottom plate (7) and the two side plates (8) are arranged in a concave mode, a containing groove (9) used for containing the side plates (8) is formed in each two adjacent wood boards (3), a plurality of through holes (10) are vertically formed in the side plates (8), inserting rods (11) are slidably arranged in the through holes (10), the inserting rods (11) are in a step-shaped device, the diameter of the rod body of each inserting rod (11) between the two side plates (8) is larger than that of the rod body slidably arranged in the through holes (10), springs (12) are sleeved on the inserting rods (11), one ends of the springs (12) abut against the side plates (8), and the other ends of the inserting rods (11) abut against the end faces of the step, two opposite sides of the two side plates (8) are respectively provided with a push-pull rod (13), one end of the insertion rod (11) with smaller diameter is connected to the push-pull rod (13), and the side wall of the accommodating groove (9) opposite to the insertion rod (11) is provided with an insertion hole (14) for the insertion of the insertion rod (11).

6. The double-row steel pipe pile cofferdam of claim 5, wherein: one end of the insertion rod (11) inserted in the insertion hole (14) is arranged in a conical shape.

7. The double-row steel pipe pile cofferdam of claim 5, wherein: the push-pull rod (13) is connected with a push-pull handle (15).

8. The double-row steel pipe pile cofferdam of claim 1, wherein: one of two side walls of two adjacent wood boards (3) is connected with an inserting strip (16), the other side wall is provided with an inserting groove (17) for inserting the inserting strip (16), the inserting strip (16) and the inserting groove (17) are vertically arranged, the cross sections of the inserting strip (16) and the inserting groove (17) are arranged in a dovetail shape, and the inserting groove (17) is in sliding connection with the inserting strip (16).