CN216765945U

CN216765945U - Cofferdam structure

Info

Publication number: CN216765945U
Application number: CN202220028207.XU
Authority: CN
Inventors: 袁文涛; 刘雄杰
Original assignee: Individual
Current assignee: Liu Yanwei
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-06-17
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses a cofferdam structure, which comprises a cofferdam body, an inner enclosing purlin and a support plate, wherein one side wall of the cofferdam body is defined as a water-facing wall, the inner enclosing purlin is arranged in the cofferdam body and used for supporting the cofferdam body, the support plate is arranged at one end, close to the water-facing wall, of the inner enclosing purlin, the support plate is matched with the water-facing wall, and the plate surface of the support plate is abutted against the water-facing wall. According to the cofferdam structure disclosed by the utility model, when the water-facing wall of the cofferdam body is impacted by a rapid stream, the damage to the water-facing wall can be reduced.

Description

Cofferdam structure

Technical Field

The utility model relates to a hydraulic engineering structure, in particular to a cofferdam structure.

Background

The cofferdam is a temporary enclosure structure constructed for constructing permanent water conservancy facilities in the water conservancy project construction, and has the function of preventing water from entering the construction position of a building so as to conveniently excavate foundation pits and construct the building. The cofferdam structure generally comprises a cofferdam body and an inner surrounding purlin arranged in the cofferdam body, wherein the inner surrounding purlin is used for supporting the side wall of the cofferdam body.

Although the existing cofferdam structure can be waterproof, the following disadvantages exist: in the rivers of part rivers torrent, the cofferdam body suffers the impact of torrent easily and causes the damage towards the lateral wall of rivers, and then has not only prolonged construction cycle, causes the incident easily moreover.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a cofferdam structure, which can reduce the damage to the water-facing wall when the water-facing wall of the cofferdam body is impacted by the torrent.

The cofferdam structure according to the embodiment of the utility model comprises:

the cofferdam comprises a cofferdam body, wherein one side wall of the cofferdam body is defined as a water-facing wall;

the inner enclosing purlin is arranged in the cofferdam body and is used for supporting the cofferdam body;

the supporting plate is arranged at one end, close to the water-facing wall, of the inner surrounding purlin and is matched with the water-facing wall, and the surface of the supporting plate abuts against the water-facing wall.

The cofferdam structure provided by the embodiment of the utility model at least has the following technical effects:

when the cofferdam structure is constructed, the bottom end of the cofferdam body is inserted into the river bed, the water-facing wall surface of the cofferdam body faces water flow, an inner enclosing purlin is arranged in the cofferdam body, and a supporting plate is arranged at one end, close to the water-facing wall, of the inner enclosing purlin. Because backup pad and the adaptation of meeting the water wall to the face butt of backup pad meets the water wall, and then compares in the direct butt of inner wall purlin and meets the water wall, the area of contact of backup pad and meeting the water wall is bigger, and when meeting the water wall and receiving the impact of torrent, a plurality of positions homoenergetic of meeting the water wall can be by backup pad butt and support, and then make meeting the water wall atress more even, and the supporting effect is better, thereby can reduce to meet the water wall and suffer the damage.

According to some embodiments of the utility model, the horizontal cross section of the water-facing wall is in a convex sharp-horn-shaped structure.

According to some embodiments of the utility model, the horizontal cross section of the water-facing wall is of a convex arc structure.

According to some embodiments of the utility model, a plurality of steel sheet piles are circumferentially arranged on the cofferdam body, two side edges of each steel sheet pile are bent to form a locking notch structure, and the locking notch structures adjacent to two adjacent steel sheet piles are fastened with each other.

According to some embodiments of the utility model, a water stop strip is bonded to an inner surface of the fore-and-aft structure.

According to some embodiments of the utility model, a deflector adapted to the water-facing wall is attached to the outer side of the water-facing wall.

According to some embodiments of the utility model, a mounting gap is reserved between the inner purlin and the water-facing wall, and the support plate is inserted into the mounting gap in a matched manner and can be taken out from the top end of the mounting gap.

According to some embodiments of the utility model, the inner purlin is provided with two first connecting rods, the side walls of the cofferdam body at two ends of the water-facing wall are parallel to and welded with the corresponding first connecting rods, a butting rod is arranged between one ends of the two first connecting rods close to the water-facing wall, the supporting plate is inserted between the butting rod and the water-facing wall, a supporting rod is arranged between the two first connecting rods, and a plurality of first reinforcing rods are arranged between the butting rod and the supporting rod.

According to some embodiments of the utility model, a second connecting rod is arranged between one ends of the two first connecting rods far away from the abutting rods, the side wall of one end of the cofferdam body far away from the water-facing wall is parallel to and welded with the second connecting rod, and a second reinforcing rod is arranged between the second connecting rod and the two first connecting rods.

According to some embodiments of the utility model, the inner purlin is provided in plurality, and the plurality of inner purlins are arranged at intervals in the vertical direction.

According to some embodiments of the utility model, the support plate comprises a plurality of mutually parallel longitudinal support bars and a plurality of mutually parallel transverse support bars, the longitudinal support bars being cross-connected with the transverse support bars.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is another perspective view of FIG. 2;

FIG. 4 is a schematic connection diagram of a steel sheet pile;

FIG. 5 is a schematic view of the installation of a check rod;

reference numerals:

the cofferdam comprises a cofferdam body 100, a water-facing wall 101, a steel sheet pile 102, a locking notch structure 103 and a water stop strip 104; the inner enclosing purlin 200, a first connecting rod 201, an abutting rod 202, a jacking rod 203, a first reinforcing rod 204, a second connecting rod 205 and a second reinforcing rod 206; a support plate 300, a longitudinal support bar 301, a transverse support bar 302; a baffle 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

A cofferdam structure according to an embodiment of the present invention will be described with reference to fig. 1 to 5.

The cofferdam structure according to the embodiment of the present invention, as shown in fig. 1 to 5, includes:

the cofferdam comprises a cofferdam body 100, wherein one side wall of the cofferdam body 100 is defined as a water facing wall 101;

the inner enclosing purlin 200 is arranged in the cofferdam body 100 and is used for supporting the side wall of the cofferdam body 100;

the support plate 300 is arranged at one end, close to the water-facing wall 101, of the inner purlin 200, the support plate 300 is matched with the water-facing wall 101, and the plate surface of the support plate 300 abuts against the water-facing wall 101.

In this embodiment, when being under construction the cofferdam structure, insert under the riverbed with the bottom of cofferdam body 100, and make the wall 101 of meeting water of cofferdam body 100 face rivers, later set up interior purlin 200 in cofferdam body 100, and set up backup pad 300 at the one end that interior purlin 200 is close to wall 101 of meeting water, because backup pad 300 and wall 101 looks adaptation of meeting water, and the wall 101 of meeting water is met to the face butt of backup pad 300, compare in the direct butt wall 101 of interior purlin 200 of enclosing, the area of contact of backup pad 300 and wall 101 of meeting water is bigger, when wall 101 of meeting water receives the impact of torrent, the multiple position of wall 101 of meeting water all can be by backup pad 300 butt and support, and then make wall 101 of meeting water atress more even, the supporting effect is better, thereby can reduce wall 101 of meeting water and suffer the damage.

It should be noted that, the inner purlin 200 is mainly used for supporting the side wall of the cofferdam body 100, specifically, the inner purlin 200 may be of an annular structure, one end of the inner purlin 200, which is close to the water-facing wall 101, abuts against the water-facing wall 101 through the support plate 300, so as to support the water-facing wall 101, and other positions of the inner purlin 200 may be welded with other side walls of the cofferdam body 100 except the water-facing wall 101, so as to support other side walls of the cofferdam body 100. The support plate 300 is adapted to the water-facing wall 101, that is, the shape of the overall contour of the support plate 300 is adapted to the shape of the overall contour of the water-facing wall 101, for example, when the overall contour of the water-facing wall 101 is in a convex acute angle shape, the overall contour of the support plate 300 is also in a convex acute angle shape, the size of the overall contour of the support plate 300 is adapted to the size of the overall contour of the water-facing wall 101, when the support plate 300 is installed, the support plate 300 is approximately parallel to the water-facing wall 101, and the plate surface of the support plate 300 can just abut against the inner side of the water-facing wall 101.

In some embodiments of the present invention, as shown in fig. 1 and 2, the horizontal cross section of the water-facing wall 101 has a sharp-horn shape convex outward. And then make the whole profile of meeting water wall 101 be convex sharp horn shape structure, and then can reduce the impact force that rivers applyed to meeting water wall 101 to can further reduce meeting water wall 101 and suffer damage. It should be noted that, since the water facing wall 101 is not necessarily a regular flat plate structure, the pointed structure in which the water facing wall 101 protrudes outward in the present embodiment refers to a pointed structure in which the overall contour of the water facing wall 101 protrudes outward.

In some embodiments of the present invention, as shown in fig. 1 and 2, the horizontal cross section of the water-facing wall 101 has an outwardly convex arc structure. And then make the whole profile of meeting water wall 101 be convex arc structure, and then can reduce the impact force that rivers applyed to meeting water wall 101 to can further reduce and meet water wall 101 and suffer damage. It should be noted that, since the water-facing wall 101 is not necessarily a regular flat structure, the water-facing wall 101 mentioned in this embodiment has an outward convex arc structure, which means that the overall profile of the water-facing wall 101 has an outward convex arc structure.

In some embodiments of the present invention, as shown in fig. 4 and 5, a plurality of steel sheet piles 102 are arranged in the cofferdam body 100 along the circumferential direction, both side edges of the steel sheet piles 102 are bent to form the locking notch structures 103, and the adjacent locking notch structures 103 of two adjacent steel sheet piles 102 are fastened to each other. That is, the cofferdam body 100 is formed by splicing a plurality of steel sheet piles 102 in sequence, and the steel sheet piles 102 have high structural strength, good waterproof effect and stronger water flow impact resistance, and are more convenient to insert under the riverbed. Of course, the cofferdam body 100 may be an integrally formed annular plate-shaped structure.

In some embodiments of the utility model, a water stop strip 104 is adhered to the inner surface of the locking notch structure 103, as shown in fig. 5. When two fore shaft structures 103 lock joint each other, sealing rod 104 is located the gap between these two fore shaft structures 103, sealing rod 104 generally is formed by inorganic water swelling material and the rubber of absorbing of polymer is mixing, meet water can expand, and then can fill up the gap between two fore shaft structures 103, thereby can play sealed effect, avoid external water to enter into cofferdam body 100 from the gap between two fore shaft structures 103 of mutual lock joint, thereby make cofferdam body 100's water-proof effects better. And when two fore shaft structures 103 are buckled with each other, the sealing rod 104 can be located in the gap between the two fore shaft structures 103, and compared with the situation that the sealing material is refilled after the two fore shaft structures 103 are buckled with each other, the construction is more convenient and labor-saving.

In some embodiments of the present invention, as shown in fig. 1 and fig. 2, a baffle 400 adapted to the water-facing wall 101 is attached to the outer side of the water-facing wall 101. When the water-facing wall 101 is formed by splicing a plurality of steel sheet piles 102, the water-facing wall 101 is not a regular plate-shaped structure but is uneven, and thus the flow of water toward both sides cannot be effectively guided. In this embodiment, in the outside of meeting water wall 101, namely paste towards one side of rivers and be equipped with the guide plate 400 with meeting water wall 101 looks adaptation, guide plate 400 plays the water conservancy diversion effect, can guide rivers effectively and flow towards both sides, and then can further reduce meeting water wall 101 and receive the impact force of rivers to can further reduce meeting water wall 101 and suffer the damage. The fact that the baffle 400 is adapted to the water-facing wall 101 means that the shape of the overall contour of the baffle 400 is adapted to the shape of the overall contour of the water-facing wall 101, for example, when the overall contour of the water-facing wall 101 is in the shape of an outward-protruding sharp corner, the overall contour of the baffle 400 is also in the shape of an outward-protruding sharp corner, and the size of the overall contour of the baffle 400 is also adapted to the size of the overall contour of the water-facing wall 101. The guide plate 400 can be attached to the outer side of the water-facing wall 101 through welding or bolt connection, and when the guide plate 400 is installed, the guide plate 400 can be approximately parallel to the water-facing wall 101, so that the guide plate 400 can have a good flow guide effect.

In some embodiments of the present invention, as shown in fig. 2, a mounting gap is reserved between the inner purlin 200 and the water-facing wall 101, and the support plate 300 is fittingly inserted into the mounting gap and can be taken out from the top end of the mounting gap. When the support plate 300 needs to be installed, the support plate 300 is directly inserted into the installation gap from the top end of the installation gap, and the water-facing wall 101 can be tightly attached to the support plate 300 under the impact of water flow, so that the support plate 300 is prevented from moving randomly. When the supporting plate 300 needs to be disassembled, the supporting plate 300 can be pulled out from the top end of the mounting gap, and the disassembly and the assembly are convenient. Of course, the support plate 300 may also be welded or bolted to the inner purlin 200.

In some embodiments of the present invention, as shown in fig. 1 and 2, the inner purlin 200 is provided with two first connecting rods 201, the two first connecting rods 201 correspond to the side walls of the cofferdam body 100 at two ends of the water-facing wall 101 one by one, the sidewalls of the cofferdam body 100 at both ends of the water-facing wall 101 are parallel to and welded with the corresponding first connecting rods 201, the abutting rods 202 are arranged between the two first connecting rods 201 near one end of the water-facing wall 101, the supporting plate 300 is inserted between the abutting rods 202 and the water-facing wall 101, the abutting rods 202 are adapted to the water-facing wall 101, for example, when the overall profile of the water-facing wall 101 and the support plate 300 is in a convex sharp angle shape, the abutting rod 202 is in a bent rod-shaped structure with the sharp angle end facing outwards, furthermore, the inner wall of the supporting plate 300 is just attached to the abutting rods 202, a supporting rod 203 is arranged between the two first connecting rods 201, and a plurality of first reinforcing rods 204 are arranged between the abutting rods 202 and the supporting rod 203. In this embodiment, through setting up top holding rod 203 and first stiffener 204, can play the supporting role to connecting rod 202 for connecting rod 202's structural strength is higher, and then connecting rod 202 is better to the supporting effect of backup pad 300, thereby makes the backup pad 300 better to the supporting effect of meeting water wall 101.

In some embodiments of the present invention, as shown in fig. 1, a second connecting rod 205 is disposed between ends of the two first connecting rods 201 far away from the abutting rod 202, a side wall of the cofferdam body 100 far away from the end facing the water wall 101 is parallel to and welded to the second connecting rod 205, and a second reinforcing rod 206 is disposed between the second connecting rod 205 and the two first connecting rods 201. The inner purlin 200 is arranged in such a way, so that the structural strength of the inner purlin is higher, and the supporting effect on the side wall of the cofferdam body 100 is better.

In some embodiments of the present invention, as shown in fig. 3, the inner purlin 200 is provided in plurality, and the plurality of inner purlins 200 are arranged at intervals in the vertical direction. The inner purlin 200 is arranged in such a way, so that the supporting effect on the side wall of the cofferdam body 100 is better.

In some embodiments of the present invention, as shown in fig. 3, the supporting plate 300 includes a plurality of longitudinal supporting rods 301 parallel to each other and a plurality of transverse supporting rods 302 parallel to each other, and the longitudinal supporting rods 301 are cross-connected with the transverse supporting rods 302. In this embodiment, the supporting plate 300 has a grid structure, which not only has high structural strength, but also saves materials and has good practicability. The support plate 300 may have another structure, for example, an integrally formed plate-like structure. In addition, a plurality of longitudinal support bars 301 may be disposed side by side, and a plurality of lateral support bars 302 may be disposed at intervals in the vertical direction.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A cofferdam structure, characterized in that it comprises:

-a cofferdam body (100), one of the side walls of the cofferdam body (100) being defined as the water-facing wall (101); the inner enclosing purlin (200) is arranged in the cofferdam body (100) and is used for supporting the cofferdam body (100); the supporting plate (300) is arranged at one end, close to the water-facing wall (101), of the inner surrounding purlin (200), the supporting plate (300) is matched with the water-facing wall (101), and the plate surface of the supporting plate (300) abuts against the water-facing wall (101).

2. Cofferdam structure according to claim 1, characterized in that the horizontal cross section of said water-facing wall (101) is of an outwardly convex pointed angle-like structure.

3. Cofferdam structure according to claim 1, characterized in that the horizontal cross-section of said water-facing wall (101) presents an outwardly convex arc-shaped structure.

4. Cofferdam structure according to claim 2 or 3, characterized in that a plurality of steel sheet piles (102) are arranged in the cofferdam body (100) along the circumferential direction, both sides of said steel sheet piles (102) are bent to form a locking notch structure (103), and the adjacent locking notch structures (103) of two said steel sheet piles (102) are fastened to each other.

5. Cofferdam structure according to claim 4, characterized in that a water stop strip (104) is glued to the inner surface of said locking structure (103).

6. Cofferdam structure according to claim 4, characterized in that outside of said water-facing wall (101) is attached a deflector (400) adapted to said water-facing wall (101).

7. Cofferdam structure according to any of claims 1 to 3, characterized in that a mounting gap is reserved between said inner purlin (200) and said water-facing wall (101), said support plate (300) being fittingly inserted in said mounting gap and being removable from the top end of said mounting gap.

8. The cofferdam structure of claim 7, wherein the inner purlin (200) is provided with two first connecting rods (201), the side walls of the cofferdam body (100) at two ends of the water-facing wall (101) are parallel to and welded with the corresponding first connecting rods (201), an abutting rod (202) is arranged between the two first connecting rods (201) near one end of the water-facing wall (101), the supporting plate (300) is inserted between the abutting rod (202) and the water-facing wall (101), a supporting rod (203) is arranged between the two first connecting rods (201), and a plurality of first reinforcing rods (204) are arranged between the abutting rod (202) and the supporting rod (203).

9. Cofferdam structure according to any of claims 1 to 3, characterized in that said inner purlin (200) is provided in plurality and a plurality of said inner purlins (200) are arranged at vertical intervals.

10. Cofferdam structure according to any of the claims 1 to 3, characterized in that said supporting plate (300) comprises a plurality of longitudinal supporting bars (301) parallel to each other and a plurality of transverse supporting bars (302) parallel to each other, said longitudinal supporting bars (301) being crosswise connected to said transverse supporting bars (302).