Connecting structure of newly-built flood control wall and built flood control wall and construction method thereof

Abstract

The application discloses a connecting structure and construction method of a newly-built flood control wall and an already-built flood control wall, belongs to the technical field of water conservancy and hydropower, and aims at the problem that the connecting part is easy to be damaged when the already-built flood control wall is connected and installed with the prefabricated newly-built flood control wall, thereby leading to the reduction of the flood control performance after the connection of the already-built flood control wall and the prefabricated newly-built flood control wall, and comprises a base and a connecting frame in an I-shaped distribution, the connecting frame is fixed to the top surface of the base, and the two side inner walls of the connecting frame are provided with a caulking area; the application realizes the preliminary stable support of the connecting frame through the vertical distribution of two reinforcing members and the connecting frame on the top surface of the base, and further improves the stability of the connecting frame through the fastening of the connecting frame with the already-built flood control wall and the prefabricated newly-built flood control wall by fasteners and the connection limiting, so that the stability of the connecting frame during the connection of the already-built flood control wall and the prefabricated newly-built flood control wall is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of water conservancy and hydropower technology, specifically relating to a connection structure and construction method for a newly built flood control wall and an existing flood control wall. Background Technology

[0002] The design and construction method for connecting a newly built reinforced concrete flood control wall with an existing reinforced concrete flood control wall is generally as follows: a 20mm wide vertical expansion joint is set between the newly built flood control wall and the existing flood control wall, and the expansion joint is filled with embedded water-stopping material.

[0003] As the prefabrication technology for new flood control walls becomes more and more mature, when connecting existing flood control walls with new ones, uneven settlement between the two can cause the embedded water-stopping material in the expansion joint to deform, crack, fall off, leak water, and leak soil, seriously affecting the water-stopping effect of the expansion joint and the structural safety performance of the flood control wall.

[0004] Therefore, a connection structure and construction method for new flood control walls and existing flood control walls are needed to solve the problem that the connection between existing flood control walls and prefabricated new flood control walls is easily damaged during installation, resulting in a decrease in flood control performance after the connection between the existing flood control walls and the prefabricated new flood control walls. Summary of the Invention

[0005] The purpose of this invention is to provide a connection structure and construction method for newly built flood control walls and existing flood control walls, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a connection structure between a newly constructed flood control wall and an existing flood control wall, comprising a base and connecting frames arranged in an I-shape, the connecting frames being fixed to the top surface of the base, the inner walls on both sides of the connecting frames being provided with caulking areas, the inner walls on both sides of the base being provided with mounting grooves, each mounting groove having pre-drilled holes a at both ends on the top surface of the base, each pre-drilled hole a having a threaded fastening bolt a through its inner wall, and two fastening bolts a located at the same end having a reinforcing member that mates with the connecting frame above them, and the top of both ends of the base having fasteners that mate with adjacent reinforcing members.

[0007] It should be noted in the solution that the reinforcing member includes two fastening collars distributed vertically, each of which is threaded to the end face of the connecting frame. A reinforcing post is inserted into the inner wall of the two fastening collars. A protective cover is fitted onto the top surface of the two fastening bolts a located at the same end. A connecting block is fixed to the top surface of the two protective covers. A positioning sleeve is fixed to the top surface of the connecting block. A tightening spring fixed to the bottom surface of the reinforcing post is provided inside the positioning sleeve.

[0008] It is worth noting that the top inner surface of the fastening collar is chamfered, and the top outer surface of the reinforcing column is fitted with a mounting ring that matches the chamfer.

[0009] Furthermore, it should be noted that the fastener includes a limiting block fixed to the top of the reinforcing column, four symmetrically distributed guide sleeves are provided on both sides of the limiting block, a connecting rod is slidably passed through the inner wall of each guide sleeve, a pressing block is fixed to the inner end of the connecting rod, a connecting spring is provided on the outer surface of the connecting rod and fixed to the opposite surface of the pressing block and the guide sleeve, and a connecting sleeve that cooperates with the connecting rod is provided on the end face of the wall.

[0010] In a preferred embodiment, the vertical cross-sections of the four extrusion blocks are all arranged in right-angled trapezoids, and the outer surface of the limiting block and the contact surface of the extrusion block are both adapted inclined surfaces.

[0011] In a preferred embodiment, the end face of the connecting frame is provided with a support member that cooperates with the docking rod. The support member includes an extension block fixed to the end face of the base. Two symmetrically distributed rotating seats are fixed to the top surface of the extension block. A connecting shaft is rotatably connected between the two rotating seats. Two symmetrically distributed support rods are fastened to the outer surface of the connecting shaft. The top end of the support rod is sleeved on the outer surface of the adjacent docking rod. A pre-drilled hole b is provided between the two support rods on the top surface of the extension block. A fastening bolt b is threaded through the inner wall of the pre-drilled hole b.

[0012] In a preferred embodiment, the fastening bolt b and the two adjacent fastening bolts a are arranged in an isosceles triangle, and the support rod and the end face of the connecting frame are inclined.

[0013] A construction method for a connection structure between a newly constructed flood control wall and an existing flood control wall includes the following steps:

[0014] S1. Fastening and installation of the connecting frame: A pre-reserved installation channel is opened at the bottom of the existing flood control wall, and the connecting frame is slidably inserted into the bottom of the existing flood control wall until the connecting frame is inserted into the outer surface of the existing flood control wall, thereby completing the initial insertion and installation of the connecting frame and the existing flood control wall. The fastening bolt a passes through the prefabricated hole a and forms a threaded lock with the foundation, thereby completing the docking and installation of the connecting frame and the existing flood control wall. Then, one end of the prefabricated new flood control wall is inserted into the other side of the connecting frame, completing the initial installation of the existing flood control wall, the connecting frame and the new flood control wall.

[0015] S2. Support reinforcement: The extension block is tightened by threading the bolt b through the precast hole b and locking it with the foundation. The extrusion block is pressed towards the center of the connecting frame, causing the connecting rod to compress inward within the guide sleeve. The support rod is rotated so that the through hole at the top of the support rod is coaxial with the connecting rod. The force on the extrusion block is released, and the connecting rod is inserted into the connecting sleeve on the end face of the existing flood control wall by the elastic force of the connecting spring. This operation is repeated to support and install the other support rod.

[0016] S3. Reinforcement Installation of Reinforcing Components: Connect the connecting block to the fastening bolt a through the protective cover, so that the connecting block and the positioning sleeve are inserted and placed on the top surface of the base. Tighten the two fastening rings to install them on the end face of the connecting frame, so that the two fastening rings and the positioning sleeve are vertically coaxial. Then, insert the reinforcing column and the limiting block from the top fastening ring. The limiting block squeezes the two compression blocks at the top. At this time, the mounting ring and the top fastening ring are fully inserted and installed. At the same time, the lifting spring is in a compressed state, so that the limiting block is fitted and installed through the four compression blocks. Repeat this operation to complete the installation of the reinforcing component on the other end face of the connecting frame.

[0017] S4. Sealing: Fill the joints between the connecting frame and the existing flood control wall and the newly built flood control wall with water-stopping filler on both sides, thereby reinforcing and sealing the connection between the existing flood control wall, the newly built flood control wall and the connecting frame.

[0018] Compared with the prior art, the connection structure and construction method between a newly built flood control wall and an existing flood control wall provided by the present invention have at least the following beneficial effects:

[0019] (1) The existing flood control wall and the prefabricated new flood control wall are connected and installed by connecting frame, and the connecting frame is threaded and locked by base, fastening bolt a and fastening bolt b. Then, the joint area of ​​the connecting frame is filled with water-stopping filler, which can effectively avoid deformation, cracking, falling off, water seepage and soil leakage, and fully guarantee the flood control performance after the existing flood control wall and the prefabricated new flood control wall are connected.

[0020] (2) Two reinforcing members and a connecting frame are vertically distributed on the top surface of the base to achieve initial stable support for the connecting frame. Fasteners are used to further tighten and limit the connection between the connecting frame and the existing flood control wall and the prefabricated new flood control wall, thereby further improving the stability of the connecting frame. Finally, a support member is set to cooperate with the fastener, thereby greatly improving the stability of the connecting frame when connecting the existing flood control wall and the prefabricated new flood control wall.

[0021] (3) The reinforcing components, fasteners and supporting components are assembled together to cooperate and promote each other, thereby fully ensuring the stability of the existing flood control wall and the prefabricated new flood control wall when connected and installed through the connecting frame, thus ensuring its flood control performance during the connection and installation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a partial structural diagram of the support member of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged structural diagram of region A in the middle;

[0025] Figure 4 This is a partial structural diagram of the limiting block of the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged structural diagram of region B in the middle;

[0027] Figure 6 This is a partial structural diagram of the mounting groove, pre-drilled hole a, and pre-drilled hole b of the present invention.

[0028] In the diagram: 1. Base; 2. Connecting frame; 3. Sealing area; 4. Mounting groove; 5. Pre-drilled hole a; 6. Fastening bolt a; 7. Reinforcing member; 71. Fastening collar; 72. Reinforcing column; 73. Protective cover; 74. Connecting block; 75. Positioning sleeve; 76. Tightening spring; 8. Fastener; 81. Limiting block; 82. Guide sleeve; 83. Connecting rod; 84. Extrusion block; 85. Connecting spring; 86. Connecting sleeve; 9. Mounting ring; 10. Support member; 101. Extension block; 102. Rotating seat; 103. Connecting shaft; 104. Support rod; 105. Pre-drilled hole b; 106. Fastening bolt b. Detailed Implementation

[0029] The present invention will be further described below with reference to embodiments.

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0032] Please see Figure 1-6 This invention provides a connection structure between a newly built flood control wall and an existing flood control wall, including a base 1 and connecting frames 2 arranged in an I-shape. The connecting frames 2 are fixed to the top surface of the base 1. The inner walls on both sides of the connecting frames 2 are provided with grouting areas 3. The side walls on both sides of the base 1 are provided with mounting grooves 4. Each mounting groove 4 has a pre-drilled hole a5 at both ends on the top surface of the base 1. The inner wall of each pre-drilled hole a5 is threaded with a fastening bolt a6. Above the two fastening bolts a6 located at the same end, a reinforcing member 7 that cooperates with the connecting frame 2 is provided. The top of both ends of the base 1 are provided with fasteners 8 that cooperate with the adjacent reinforcing members 7.

[0033] Further as Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, it is worth noting that the reinforcing member 7 includes two fastening collars 71 distributed vertically. Each fastening collar 71 is threaded to the end face of the connecting frame 2. The inner walls of the two fastening collars 71 are fitted with reinforcing columns 72. The top surfaces of the two fastening bolts a6 located at the same end are fitted with protective covers 73. The top surfaces of the two protective covers 73 are fixed with a connecting block 74. The top surface of the connecting block 74 is fixed with a positioning sleeve 75. The positioning sleeve 75 is provided with a tightening spring 76 fixed to the bottom surface of the reinforcing column 72. The top inner surface of the fastening collars 71 is chamfered. The top outer surface of the reinforcing column 72 is fitted with a mounting ring 9 that matches the chamfer.

[0034] Further as Figure 1 , Figure 3 and Figure 6 As shown, it is worth noting that the fastener 8 includes a limiting block 81 fixed to the top of the reinforcing column 72. Four guide sleeves 82 are symmetrically distributed on both sides of the limiting block 81. A connecting rod 83 slides through the inner wall of each guide sleeve 82. A pressing block 84 is fixed to the inner end of the connecting rod 83. A connecting spring 85 is fixed to the outer surface of the connecting rod 83 and is fixed to the opposite surface of the pressing block 84 and the guide sleeve 82. A connecting sleeve 86 that cooperates with the connecting rod 83 is provided on the end face of the wall. The vertical cross-section of the four pressing blocks 84 is set in a right trapezoid. The contact surface between the outer surface of the limiting block 81 and the pressing block 84 is a matching inclined surface.

[0035] Further as Figure 2 , Figure 4 and Figure 6As shown, it is worth noting that the end face of the connecting frame 2 is provided with a support member 10 that cooperates with the docking rod 83. The support member 10 includes an extension block 101 fixed to the end face of the base 1. The top surface of the extension block 101 is fixed with two symmetrically distributed rotating seats 102. A connecting shaft 103 is rotatably connected between the two rotating seats 102. Two symmetrically distributed support rods 104 are fastened to the outer surface of the connecting shaft 103. The top end of the support rod 104 is sleeved on the outer surface of the adjacent docking rod 83. A pre-drilled hole b105 is provided between the two support rods 104 on the top surface of the extension block 101. A fastening bolt b106 is threaded through the inner wall of the pre-drilled hole b105. The fastening bolt b106 and the two adjacent fastening bolts a6 are distributed in an isosceles triangle. The support rods 104 are inclined to the end face of the connecting frame 2.

[0036] In the specific arrangement, one or both ends of the connecting frame 2 can be supported by a support member 10, which can be adjusted according to the actual situation, thereby greatly improving the applicability of the connecting frame 2 during locking installation.

[0037] A construction method for a connection structure between a newly constructed flood control wall and an existing flood control wall includes the following steps:

[0038] S1. Fastening installation of connecting frame 2: A reserved installation channel is opened at the bottom of the existing flood control wall, and the connecting frame 2 is slidably inserted into the bottom of the existing flood control wall until the connecting frame 2 is inserted into the outer surface of the existing flood control wall, thereby completing the initial insertion installation of the connecting frame 2 and the existing flood control wall. The fastening bolt a6 passes through the prefabricated hole a5 and forms a threaded lock with the foundation, thereby completing the docking installation of the connecting frame 2 and the existing flood control wall. Then, one end of the prefabricated new flood control wall is inserted into the other side of the connecting frame 2, completing the initial installation of the existing flood control wall, the connecting frame 2 and the new flood control wall.

[0039] S2, Support 10 reinforcement: The extension block 101 is fastened by the threaded fastening bolt b106 through the pre-drilled hole b105 and the foundation. The pressing block 84 is pressed towards the center of the connecting frame 2, so that the connecting rod 83 is compressed inward in the guide sleeve 82. The support rod 104 is rotated so that the through hole at the top of the support rod 104 and the connecting rod 83 are coaxially distributed. The force on the pressing block 84 is released. The connecting rod 83 is inserted and installed through the elastic force of the connecting spring 85 through the support rod 104 and the connecting sleeve 86 on the end face of the existing flood control wall. This operation is repeated to support and install the other support rod 104.

[0040] S3. Reinforcement installation of reinforcement 7: Connecting block 74 is inserted into the fastening bolt a6 through protective cover 73, so that connecting block 74 and positioning sleeve 75 are inserted and placed on the top surface of base 1. Two fastening rings 71 are screwed on the end face of connecting frame 2, and the two fastening rings 71 and positioning sleeve 75 are vertically coaxially distributed. Then, reinforcing column 72 and limiting block 81 are inserted from the top fastening ring 71. The limiting block 81 squeezes the two squeezing blocks 84 at the top. At this time, the mounting ring 9 and the top fastening ring 71 are fully inserted and installed. At the same time, the lifting spring is in a compressed state, so that the limiting block 81 is fitted and installed through the four squeezing blocks 84. Repeat this operation to complete the installation of reinforcement 7 on the other end face of connecting frame 2.

[0041] S4. Sealing: Fill the joints 3 between the existing flood control wall and the newly built flood control wall on both sides of the connecting frame 2 with water-stopping filler, thereby reinforcing and sealing the existing flood control wall and the newly built flood control wall with the connecting frame 2.

[0042] In summary: By connecting the existing flood control wall and the precast flood control wall through the connecting frame 2, sufficient protection is formed at the connection point between the two flood control walls. Furthermore, the joint area 3 of the connecting frame 2 is filled with water-stopping material, thus ensuring the flood control sealing at the connection point and effectively preventing deformation, cracking, detachment, water seepage, and soil leakage. Simultaneously, the connecting frame 2, through the base 1, fastening bolts a6 and b106, provides multiple locking and positioning points, significantly improving the installation and use performance of the connecting frame 2. The stability of the connection frame 2 is improved by symmetrically arranged reinforcing members 7 forming a vertical reinforcement, thereby further improving the stability of the connection frame 2 during locking installation. The fasteners 8 allow the existing flood control wall and the prefabricated new flood control wall to be reinforced again, which in turn reinforces the connection frame 2, further improving the stability of the connection frame 2 during locking. Finally, the support member 10 forms a slope support for the connection frame 2, which can fully ensure the stability of the connection frame 2 in connecting and installing the existing flood control wall and the prefabricated new flood control wall.

[0043] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The words “comprising” or “including” and similar terms used in this invention mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. “Up,” “down,” “left,” “right,” etc., are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection structure between a newly constructed flood control wall and an existing flood control wall, comprising a base (1) and connecting frames (2) arranged in an I-shape, wherein the connecting frames (2) are fixed to the top surface of the base (1), characterized in that, The inner walls of the connecting frame (2) are provided with caulking areas (3), and the inner walls of the base (1) are provided with mounting grooves (4). Each mounting groove (4) has a pre-drilled hole a (5) at both ends on the top surface of the base (1). Each pre-drilled hole a (5) has a threaded fastening bolt a (6) through its inner wall. Above the two fastening bolts a (6) at the same end, there is a reinforcing member (7) that cooperates with the connecting frame (2). Both ends of the top are provided with fasteners (8) that cooperate with the adjacent reinforcing members (7). The reinforcing members (7) include two fastening collars (71) distributed vertically. Each fastening collar (71) is threaded to the end face of the connecting frame (2). The inner walls of the two fastening collars (71) are fitted with reinforcing posts (72). The top surfaces of the two fastening bolts a (6) located at the same end are fitted with protective covers (73). The top surfaces of the two protective covers (73) are fixed together. A connecting block (74) is fixed, and a positioning sleeve (75) is fixed on the top surface of the connecting block (74). A tightening spring (76) fixed to the bottom surface of the reinforcing column (72) is provided inside the positioning sleeve (75). The fastener (8) includes a limiting block (81) fixed to the top of the reinforcing column (72). Four guide sleeves (82) are symmetrically distributed on both sides of the limiting block (81). A connecting rod (83) slides through the inner wall of each guide sleeve (82). The inner end of the connecting rod (83) is fixed with a pressing block (84). The outer surface of the connecting rod (83) is provided with a connecting spring (85) fixed to the opposite surface of the pressing block (84) and the guide sleeve (82). The end face of the wall is provided with a connecting sleeve (86) that cooperates with the connecting rod (83). The vertical sections of the four pressing blocks (84) are all set in right-angled trapezoids. The outer surface of the limiting block (81) and the contact surface of the pressing block (84) are both adapted inclined surfaces.

2. The connection structure between a newly constructed flood control wall and an existing flood control wall according to claim 1, characterized in that: The top inner surface of the fastening collar (71) is chamfered, and the top outer surface of the reinforcing column (72) is fastened with an installation ring (9) that matches the chamfer.

3. The connection structure between a newly constructed flood control wall and an existing flood control wall according to claim 2, characterized in that: The end face of the connecting frame (2) is provided with a support member (10) that cooperates with the docking rod (83). The support member (10) includes an extension block (101) fixed to the end face of the base (1). The top surface of the extension block (101) is fixed with two symmetrically distributed rotating seats (102). A connecting shaft (103) is rotatably connected between the two rotating seats (102). Two symmetrically distributed support rods (104) are fastened to the outer surface of the connecting shaft (103). The top end of the support rod (104) is sleeved on the outer surface of the adjacent docking rod (83). A pre-made hole b (105) is provided between the two support rods (104) on the top surface of the extension block (101). A fastening bolt b (106) is threaded through the inner wall of the pre-made hole b (105).

4. The connection structure between a newly constructed flood control wall and an existing flood control wall according to claim 3, characterized in that: The fastening bolt b (106) is distributed in an isosceles triangle with the two adjacent fastening bolts a (6), and the support rod (104) is inclined to the end face of the connecting frame (2).

5. A construction method for a connection structure between a newly constructed flood control wall and an existing flood control wall according to any one of claims 1-4, characterized in that: Includes the following steps: S1. Fastening installation of connecting frame (2): Open a reserved installation channel at the bottom of the existing flood wall and slide the connecting frame (2) into the bottom of the existing flood wall until the connecting frame (2) is inserted into the outer surface of the existing flood wall, thereby completing the initial insertion installation of the connecting frame (2) and the existing flood wall. Through the fastening bolt a (6), the bolt passes through the prefabricated hole a (5) and forms a thread lock with the foundation, thereby completing the docking installation of the connecting frame (2) and the existing flood wall. Then, insert one end of the prefabricated new flood wall into the other side of the connecting frame (2) to complete the initial installation of the existing flood wall, the connecting frame (2) and the new flood wall. S2, Support (10) reinforcement support: By tightening the bolt b (106) through the threaded hole b (105) and forming a threaded lock with the foundation, the extension block (101) is tightened and installed. By pressing the extrusion block (84) toward the center of the connecting frame (2), the docking rod (83) is compressed inward in the guide sleeve (82). The support rod (104) is rotated so that the through hole at the top of the support rod (104) and the docking rod (83) are coaxially distributed. The force on the extrusion block (84) is released. By the elastic force of the docking spring (85), the docking rod (83) passes through the support rod (104) and is inserted and installed with the docking sleeve (86) on the end face of the existing flood control wall. Repeat this operation to support and install another support rod (104). S3. Reinforcement installation of the reinforcing member (7): Connect the connecting block (74) through the protective cover (73) and the fastening bolt a (6) to form an insertion, so that the connecting block (74) and the positioning sleeve (75) are inserted and placed on the top surface of the base (1). Tighten the two fastening rings (71) and install them on the end face of the connecting frame (2), so that the two fastening rings (71) and the positioning sleeve (75) are vertically coaxially distributed. Then, insert the reinforcing column (72) and the limiting block (81) from the top fastening ring (71), and squeeze the two extrusion blocks (84) at the top through the limiting block (81). At this time, the mounting ring (9) and the top fastening ring (71) form a complete insertion installation process. At the same time, the lifting spring is in a compressed state, so that the limiting block (81) forms a close fit installation setting through the four extrusion blocks (84). Repeat this operation to complete the installation of the reinforcing member (7) on the other end face of the connecting frame (2). S4. Sealing: Fill the joints (3) between the two sides of the connecting frame (2) and the existing flood control wall and the newly built flood control wall with water-stopping filler, thereby reinforcing and sealing the existing flood control wall, the newly built flood control wall and the connecting frame (2).

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