Municipal bridge skewback underground connecting wall

Abstract

The utility model belongs to the technical field of connecting wall structures, and particularly relates to a municipal bridge skewback underground connecting wall which comprises a lower wall body and an upper wall body, the upper wall body is arranged at the top end of the lower wall body, a connecting piece is arranged at the connecting position of the lower wall body and the upper wall body, and the bottom end of the connecting piece is embedded in the lower wall body. The top end of the connecting piece is arranged at the bottom end of the upper wall body, butt joint pieces are symmetrically embedded in the upper wall body, the bottom ends of the butt joint pieces are inserted into the top of the lower wall body, a mounting groove is formed in the top end of the lower wall body, and butt joint holes are symmetrically formed in the two sides of the bottom end of the mounting groove. The two sides of the lower wall body and the two sides of the upper wall body are each provided with a waterproof layer. According to the connecting wall, the lower wall body and the upper wall body are both prefabricated parts and only need to be assembled on site in the building process, the pouring construction period is shortened, only a small amount of pouring is needed for connecting the lower wall body and the upper wall body in the building process, the time needed by later solidification is short, and the construction time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of wall connecting structure, specifically relates to a municipal bridge arch support underground wall connecting structure. BACKGROUND

[0002] The construction of municipal bridge needs to construct underground wall connecting structure in advance, and the underground continuous wall is a foundation engineering which adopts a kind of trenching machine on ground, a long and narrow deep trench is excavated along the peripheral axis of deep excavation engineering under the condition of slurry protection wall, after trench cleaning, steel reinforcement cage is hoisted and placed in the trench, then underwater concrete is poured and built by guide pipe method to form a unit slot section, so segment by segment, a continuous reinforced concrete wall is built underground, as water interception, anti-seepage, load-bearing and water retaining structure, municipal bridge needs to use underground wall connecting structure to prevent seepage and water resistance during construction.

[0003] Generally, the underground wall connecting structure is built by pouring on site, during construction, steel reinforcement framework is placed in the deep trench, and then pouring is carried out, this method needs a large amount of pouring, increases the construction time of wall connecting structure, and the solidification time of more poured concrete is long, further increases the construction period. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a municipal bridge arch support underground wall connecting structure, which can reduce the construction period, to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a municipal bridge arch support underground wall connecting structure, which comprises a lower wall body and an upper wall body, the upper wall body is arranged at the top end of the lower wall body, a connecting piece is arranged at the connecting position of the lower wall body and the upper wall body, the bottom end of the connecting piece is embedded in the interior of the lower wall body, the top end of the connecting piece is arranged at the bottom end of the upper wall body, a butt joint piece is symmetrically embedded in the interior of the upper wall body, and the bottom end of the butt joint piece is inserted into the top of the lower wall body.

[0006] Further, the top end of the lower wall body is provided with a mounting groove, and butt joint holes are symmetrically arranged at the both sides of the bottom end of the mounting groove.

[0007] Further, waterproof layers are arranged at the both sides of the lower wall body and the both sides of the upper wall body.

[0008] Further, the bottom end of the upper wall body is provided with a first pouring groove, distance-distributed through grooves are arranged at the both sides of the first pouring groove, and a butt joint groove is arranged at the top end of the first pouring groove.

[0009] Further, the connecting piece comprises a horizontal plate and a vertical plate, the horizontal plate and the vertical plate are fixedly connected in a "cross" shape, the middle part of the horizontal plate is provided with a second pouring groove, the second pouring groove is embedded in the inside of the mounting groove, the bottom of the vertical plate is embedded in the top of the lower wall body, and the top end of the vertical plate is arranged in the inside of the butt joint groove.

[0010] Further, the butt joint piece comprises a pouring pipe embedded in the inside of the upper wall body and branch pipes, the branch pipes are two, the two branch pipes are fixedly connected at the bottom end of the pouring pipe, and the bottom of the branch pipe is inserted into the inside of the corresponding butt joint hole.

[0011] Further, there is a gap of 20-30cm between the bottom end of the branch pipe and the bottom end of the butt joint hole.

[0012] Compared with the prior art, the lower wall body and the upper wall body of the wall connecting piece are both prefabricated parts, so that only on-site assembly is needed during construction, the construction period required for pouring is reduced, only a small amount of pouring is needed for connecting the lower wall body and the upper wall body during construction, the pouring amount and time are short, and the construction time is reduced due to the short solidification time in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0014] Figure 2 It is a top view of the utility model;

[0015] Figure 3 It is an explosion view of the utility model;

[0016] Figure 4 It is a utility model Figure 2 A-A section view of the utility model.

[0017] In the drawings, the components represented by each reference number are listed as follows:

[0018] 1, lower wall body; 11, mounting groove; 12, butt joint hole; 13, waterproof layer; 2, upper wall body; 21, first pouring groove; 22, through groove; 23, butt joint groove; 3, connecting piece; 31, horizontal plate; 32, vertical plate; 33, second pouring groove; 4, butt joint piece; 41, pouring pipe; 42, branch pipe. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the utility model more clear and explicit, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model.

[0020] For example, Figures 1-3As shown, an underground diaphragm wall for an arch abutment of a municipal bridge includes a lower wall 1 and an upper wall 2. The upper wall 2 is located at the top of the lower wall 1. A connector 3 is provided at the connection between the lower wall 1 and the upper wall 2. The bottom end of the connector 3 is embedded inside the lower wall 1, and the top end of the connector 3 is located at the bottom end of the upper wall 2. A butt joint 4 is symmetrically embedded inside the upper wall 2, and the bottom end of the butt joint 4 is inserted into the top of the lower wall 1.

[0021] According to the above structure, during installation, the lower wall 1 is first placed at the bottom of the deep groove, and then the upper wall 2 is placed at the top of the lower wall 1. Then, by pouring concrete into the interior of the connecting piece 4, the poured concrete enters the interior of the lower wall 1 and between the lower wall 1 and the upper wall 2 through the connecting piece 4, thereby improving the stability of the connection between the lower wall 1 and the upper wall 2.

[0022] like Figure 4 As shown, waterproof layers 13 are provided on both sides of the lower wall 1 and both sides of the upper wall 2.

[0023] According to the above structure, the waterproof layer 13 can improve the waterproof performance of the lower wall 1 and the upper wall 2, thereby improving the seepage prevention performance of the structure and the protection performance of the bridge arch abutment during use.

[0024] like Figure 3 As shown, the top of the lower wall 1 is provided with an installation groove 11, and the bottom of the installation groove 11 is symmetrically provided with docking holes 12 on both sides. The bottom of the upper wall 2 is provided with a first casting groove 21, and the sides of the first casting groove 21 are provided with equally spaced through grooves 22. The top of the first casting groove 21 is provided with a docking groove 23. The connector 3 includes a horizontal plate 31 and a vertical plate 32, which are fixedly connected in a "+" shape. The middle of the horizontal plate 31 is provided with a second casting groove 33, which is embedded in the installation groove 11. The bottom of the vertical plate 32 is embedded in the top of the lower wall 1, and the top of the vertical plate 32 is located inside the docking groove 23.

[0025] According to the above structure, during installation, the connector 3 and the lower wall 1 are placed inside the deep groove at the same time, and then the upper wall 2 is placed on top of the lower wall 1. During placement, the top of the vertical plate 32 is inserted into the docking groove 23. The first pouring groove 21 and the second pouring groove 33 cooperate to form a cavity that can accommodate concrete.

[0026] like Figure 3 and 4 As shown, the connecting part 4 includes a casting pipe 41 and a branch pipe 42 embedded inside the upper wall 2. There are two branch pipes 42, and both branch pipes 42 are fixedly connected to the bottom end of the casting pipe 41. The bottom of the branch pipe 42 is inserted into the corresponding connecting hole 12. There is a gap of 20-30 cm between the bottom end of the branch pipe 42 and the bottom end of the connecting hole 12.

[0027] According to the above structure, when docking, the bottom end of the branch pipe 42 is inserted into the inside of the corresponding docking hole 12, after the docking is completed, the concrete is poured from the top end of the pouring pipe 41 to the inside, the concrete enters the inside of the docking hole 12 through the branch pipe 42, as the concrete continues to be poured, the concrete enters the inside of the second pouring groove 33, the first pouring groove 21 and the through groove 22 along the docking hole 12, after the concrete solidifies, the branch pipe 42 can be fixedly bonded in the inside of the docking hole 12, and the stability of the bottom end of the upper wall body 2 and the horizontal plate 31 and the vertical plate 32 can be improved, and then the stability of the connection between the lower wall body 1 and the upper wall body 2 is improved.

[0028] The working principle of the utility model is as follows: when installing, the connecting piece 3 and the lower wall body 1 are placed in the inside of the deep groove at the same time, then the upper wall body 2 is placed at the top end of the lower wall body 1, when placing, the top end of the vertical plate 32 is inserted into the inside of the docking groove 23, the first pouring groove 21 and the second pouring groove 33 are matched to form a cavity that can accommodate concrete, when docking, the bottom end of the branch pipe 42 is inserted into the inside of the corresponding docking hole 12, after the docking is completed, the concrete is poured from the top end of the pouring pipe 41 to the inside, the concrete enters the inside of the docking hole 12 through the branch pipe 42, as the concrete continues to be poured, the concrete enters the inside of the second pouring groove 33, the first pouring groove 21 and the through groove 22 along the docking hole 12, after the concrete solidifies, the branch pipe 42 can be fixedly bonded in the inside of the docking hole 12, and the stability of the bottom end of the upper wall body 2 and the horizontal plate 31 and the vertical plate 32 can be improved, and then the stability of the connection between the lower wall body 1 and the upper wall body 2 is improved, the waterproof layer 13 can improve the waterproof performance of the lower wall body 1 and the upper wall body 2, so that the anti-seepage performance of the structure is improved, and the protection performance of the bridge abutment is improved.

[0029] The above is only the preferred embodiment of the utility model, it should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, still can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model. The structure, device and operation method not specifically described and explained in the utility model, if no special description and limitation, are implemented according to the conventional means in the field.

Claims

1. A diaphragm wall for the arch abutment of a municipal bridge, comprising a lower wall (1) and an upper wall (2), characterized in that: The upper wall (2) is located at the top of the lower wall (1). A connector (3) is provided at the connection between the lower wall (1) and the upper wall (2). The bottom end of the connector (3) is embedded in the interior of the lower wall (1). The top end of the connector (3) is located at the bottom end of the upper wall (2). A butt joint (4) is symmetrically embedded inside the upper wall (2). The bottom end of the butt joint (4) is inserted into the top of the lower wall (1).

2. The underground diaphragm wall for the arch abutment of a municipal bridge according to claim 1, characterized in that: The top of the lower wall (1) is provided with an installation groove (11), and the bottom of the installation groove (11) is provided with symmetrical docking holes (12) on both sides.

3. The underground diaphragm wall for the arch abutment of a municipal bridge according to claim 2, characterized in that: Waterproof layers (13) are provided on both sides of the lower wall (1) and both sides of the upper wall (2).

4. The underground diaphragm wall for the arch abutment of a municipal bridge according to claim 3, characterized in that: The bottom end of the upper wall (2) is provided with a first casting groove (21), and both sides of the first casting groove (21) are provided with equally spaced through grooves (22), and the top end of the first casting groove (21) is provided with a connecting groove (23).

5. The underground diaphragm wall for the arch abutment of a municipal bridge according to claim 4, characterized in that: The connector (3) includes a horizontal plate (31) and a vertical plate (32). The horizontal plate (31) and the vertical plate (32) are fixedly connected in a "+" shape. A second casting groove (33) is provided in the middle of the horizontal plate (31). The second casting groove (33) is embedded in the installation groove (11). The bottom of the vertical plate (32) is embedded in the top of the lower wall (1). The top of the vertical plate (32) is set in the docking groove (23).

6. The underground diaphragm wall for the arch abutment of a municipal bridge according to claim 5, characterized in that: The connecting part (4) includes a casting pipe (41) and a branch pipe (42) embedded inside the upper wall (2). There are two branch pipes (42), and both branch pipes (42) are fixedly connected to the bottom end of the casting pipe (41). The bottom of the branch pipe (42) is inserted into the corresponding connecting hole (12).

7. The underground diaphragm wall for the arch abutment of a municipal bridge according to claim 6, characterized in that: There is a gap of 20-30 cm between the bottom end of the branch pipe (42) and the bottom end of the docking hole (12).

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