Connecting structure of anti-flood wall, ancient stone bridge pier and water diversion tip and construction method

Abstract

The invention provides a connecting structure of an anti-flood wall, an ancient stone bridge pier and a water diversion tip and a construction method, and belongs to the technical field of anti-flood walls, the connecting structure comprises a current ancient stone bridge pier and water diversion tip connecting body, a buffer cushion layer, a foundation bottom plate, an anti-flood wall side wall, a water diversion tip front edge facade side wall, a water diversion tip top plate, an anti-flood wall top plate and a pier facade side wall; the anti-flood wall side wall is arranged on the foundation slab; the piers of the current ancient stone bridge and the water diversion tip connecting body are clamped between the upstream side wall and the downstream side wall; the water distribution tip front edge facade side wall is arranged on one side of the water distribution tip, and the two sides of the water distribution tip front edge facade side wall are connected with the upstream side wall and the downstream side wall correspondingly; the water distribution tip top plate is arranged on the upper side of the water distribution tip; one side of the pier facade side wall is connected with the pier facade of the ancient stone bridge, and the other side is connected with the anti-flood wall side wall; the lower side of the pier vertical face side wall is connected with the water diversion pinnacle top plate. The structure is well connected with piers and water diversion tips of existing ancient bridges, and the requirement for closing flood control rings along rivers is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of flood control walls, and more specifically, relates to a connection structure and construction method between a flood control wall, the piers and the water diversion tips of an ancient stone bridge. Background Art

[0002] Under the background of climate change, extreme weather events occur frequently, and the urban flood control pressure is increasing day by day. As a basic engineering facility for urban flood control, dikes play a core role in defending against flood attacks and protecting cities and residents from flood hazards. At the same time, as an important part of urban public infrastructure, the ecological functions and humanistic landscape design of urban projects are also increasingly concerned and valued in urban planning.

[0003] In the design and construction of urban flood control walls, in order to ensure the formation of a closed flood control circle and avoid restricted land use, etc., there will be cases where the dike line must cross existing ancient bridges along the river in the town. Most ancient bridges in the town are built with stone materials, and the piers and water diversion tips are arranged on the river channel and the bank slope. They are of long age and have been integrated with the local humanistic landscape. As cultural relics protection objects, any destructive treatment such as excavation and roughening of their main structures is not allowed during construction.

[0004] Therefore, it is of great significance to study a structure and its construction method that can be well connected with the existing piers and water diversion tips of ancient bridges, take into account the closure of the flood control circle along the river, and fit in with the local humanistic landscape. Summary of the Invention

[0005] The purpose of the present invention is to provide a connection structure and construction method between a flood control wall, the piers and the water diversion tips of an ancient stone bridge, so as to construct a flood control wall that can be well connected with the existing piers and water diversion tips of ancient bridges and meet the requirements of closing the flood control circle along the river without damaging the structures of the piers and water diversion tips of the ancient stone bridge.

[0006] To achieve the above purpose, in the first aspect of the present invention, a connection structure between a flood control wall, the piers and the water diversion tips of an ancient stone bridge is provided, including:

[0007] A connecting body of the existing piers and water diversion tips of the ancient stone bridge;

[0008] A buffer cushion layer, arranged on the foundation around the connecting body of the existing piers and water diversion tips of the ancient stone bridge;

[0009] A foundation bottom slab, arranged on the buffer cushion layer;

[0010] A flood control wall side wall, including a water-facing side wall and a water-backing side wall; the flood control wall side wall is arranged on the foundation bottom slab; the connecting body of the existing piers and water diversion tips of the ancient stone bridge is clamped between the water-facing side wall and the water-backing side wall;

[0011] The vertical side wall at the leading edge of the water-dividing tip is provided on one side of the water-dividing tip, and both sides of the vertical side wall at the leading edge of the water-dividing tip are respectively connected to the water-facing side wall and the water-backing side wall;

[0012] The top plate of the water-dividing tip is provided on the upper side of the water-dividing tip;

[0013] The top plate of the flood control wall is connected to the water-facing side wall and the water-backing side wall at both ends respectively; the top plate of the flood control wall is provided on the upper side of the flood control wall side wall; and,

[0014] The vertical side wall of the pier is connected to the vertical surface of the ancient stone bridge pier on one side and to the flood control wall side wall on the other side; the lower side of the vertical side wall of the pier is connected to the top plate of the water-dividing tip.

[0015] Furthermore, it also includes cement soil, and the cement soil is filled in the space enclosed by the foundation bottom plate, the vertical side wall at the leading edge of the water-dividing tip, the top plate of the water-dividing tip, the water-facing side wall and the water-backing side wall.

[0016] Furthermore, the four sides of the top plate of the water-dividing tip are respectively connected to the flood control wall side wall, the vertical side wall at the leading edge of the water-dividing tip and the vertical side wall of the pier, and a cavity structure is formed among the top plate of the water-dividing tip, the flood control wall side wall and the top plate of the flood control wall.

[0017] Furthermore, a vertical drainage pipe is connected to the lower side of the top plate of the flood control wall.

[0018] Furthermore, the outer surface of the connection body of the existing ancient stone bridge pier and the water-dividing tip is provided with a mortar plastering.

[0019] Furthermore, a water stop structure is arranged at the connection between the vertical side wall of the pier and the vertical surface of the ancient stone bridge pier.

[0020] Furthermore, the water stop structure includes a polyethylene foam board and a water stop caulking sealant.

[0021] Furthermore, it also includes floor tiles and wall tiles. The floor tiles are laid on the top plate of the flood control wall, and the wall tiles are arranged on the outer side of the flood control wall side wall.

[0022] Furthermore, the flood control wall side wall, the foundation bottom plate, the top plate of the flood control wall, the top plate of the water-dividing tip, the vertical side wall of the pier, and the vertical side wall at the leading edge of the water-dividing tip are all of reinforced concrete structure.

[0023] In the second aspect of the present invention, a construction method for the connection structure between the flood control wall and the ancient stone bridge pier and the water-dividing tip is provided, including the following steps:

[0024] Lay a buffer cushion layer and a foundation bottom plate on the foundation around the connection body of the existing ancient stone bridge pier and the water-dividing tip;

[0025] After the foundation floor slab reaches the designed age strength, formwork construction of reinforced concrete is carried out for the pier elevation side wall, the front elevation side wall of the water dividing tip, and the flood control wall side wall.

[0026] After the flood control wall side wall and the front elevation side wall of the water dividing tip reach the designed age strength, the space enclosed by the foundation floor slab, the front elevation side wall of the water dividing tip, and the flood control wall side wall is backfilled with cement soil, and formwork construction of reinforced concrete for the top slab of the water dividing tip and the top slab of the flood control wall is completed.

[0027] Compared with the prior art, the present invention has the following technical effects:

[0028] The connection structure of a flood control wall with an ancient stone bridge pier and a water dividing tip of the present invention forms an integral stress structure by arranging a pier elevation side wall, a top slab of the water dividing tip, and a front elevation side wall of the water dividing tip on the outer side of the connection body of the existing ancient stone bridge pier and the water dividing tip, covering the connection body of the existing ancient stone bridge pier and the water dividing tip and then connecting it with the flood control wall side wall. This avoids destructive treatments such as excavation and roughening of the main structure of the ancient stone bridge during the construction of the flood control wall. Without damaging the structures of the existing ancient stone bridge pier and the water dividing tip, a flood control wall that is well-connected with the structures of the existing ancient bridge pier and the water dividing tip and meets the requirements of the closed flood control circle along the river can be constructed, meeting the requirements for the protection of cultural relics of the existing ancient bridge. On the other hand, by laying a buffer cushion layer and a foundation floor slab on the foundation around the connection body of the existing ancient stone bridge pier and the water dividing tip, and connecting the flood control wall side wall to the foundation floor slab, the additional load of the newly built flood control wall side wall is directly transmitted to the foundation floor slab, reducing the additional load on the existing ancient stone bridge and improving the safety and durability of the existing ancient stone bridge.

[0029] A cavity structure is formed among the top slab of the water dividing tip, the flood control wall side wall, and the top slab of the flood control wall of the connection structure of a flood control wall with an ancient stone bridge pier and a water dividing tip of the present invention, which can reduce the wall weight and the foundation load; and the cavity structure can greatly save masonry materials and take into account durability, economy, and safety.

[0030] A water stop structure is arranged at the connection between the pier elevation side wall and the elevation of the ancient stone bridge pier in the connection structure of a flood control wall with an ancient stone bridge pier and a water dividing tip of the present invention to ensure that a closed system is formed at the connection part between the flood control wall and the ancient stone bridge, meeting the flood control requirements; in addition, floor tiles and wall tiles are set on the outer surfaces of the top of the connection part of the flood control wall and the flood control wall side wall on the water-facing side and the backwater side, and the material selection and type selection of the floor tiles and wall tiles are consistent with the original style of the ancient stone bridge, integrating into the local human landscape. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a schematic horizontal sectional view of the connection structure between a flood control wall, an ancient stone bridge pier, and a water diversion tip at the position of the water diversion tip provided in Embodiment 1 of the present invention;

[0033] Figure 2 It is a schematic horizontal sectional view of the connection structure between a flood control wall, an ancient stone bridge pier, and a water diversion tip at the upper side position of the water diversion tip (i.e., the cavity structure) provided in Embodiment 1 of the present invention;

[0034] Figure 3 For Figure 1 It is a schematic structural view of the cross-section at A-A in

[0035] Figure 4 For Figure 2 It is a schematic structural view of the cross-section at B-B in

[0036] Figure 5 For Figure 1 It is a schematic longitudinal sectional structure view in the river-flow direction.

[0037] Among them, the reference numerals in the figure are as follows:

[0038] 1. Side wall of the flood control wall, 2. Top plate of the flood control wall, 3. Top plate of the water diversion tip, 4. Floor tiles, 5. Wall tiles, 6. Connection body of the existing ancient stone bridge pier and the water diversion tip, 7. Cement soil, 8. Foundation bottom plate, 9. Buffer cushion layer, 10. Vertical drainage pipe, 11. Side wall of the pier facade, 12. Waterproof structure, 13. Side wall of the front edge of the water diversion tip, 14. Ground behind the wall, 15. Ground in front of the wall, 16. Mortar plastering. Detailed implementation manners

[0039] In order to make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the following further details the present invention in combination with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms of "a", "the", and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0041] Embodiment 1

[0042] Embodiment 1 of the present invention provides a connection structure between a flood control wall, an ancient stone bridge pier, and a water diversion tip, as Figure 1-5 shown, including: a connection body 6 of the existing ancient stone bridge pier and the water diversion tip, a buffer cushion layer 9, a foundation floor slab 8, a flood control wall side wall 1, a front elevation side wall 13 of the water diversion tip, a water diversion tip top slab 3, a flood control wall top slab 2, and a pier elevation side wall 11. The buffer cushion layer 9 is arranged on the foundation around the connection body 6 of the existing ancient stone bridge pier and the water diversion tip; the foundation floor slab 8 is arranged on the buffer cushion layer 9; the flood control wall side wall 1 includes a water-facing side wall and a backwater-facing side wall; the flood control wall side wall 1 is arranged on the foundation floor slab 8, that is, the lower side of the flood control wall side wall 1 is connected to the foundation floor slab 8; the connection body 6 of the existing ancient stone bridge pier and the water diversion tip is clamped between the water-facing side wall and the backwater-facing side wall; the front elevation side wall 13 of the water diversion tip is arranged on one side of the water diversion tip, and both sides of the front elevation side wall 13 of the water diversion tip are respectively connected to the water-facing side wall and the backwater-facing side wall; the water diversion tip top slab 3 is arranged on the upper side of the water diversion tip; both ends of the flood control wall top slab 2 are respectively connected to the water-facing side wall and the backwater-facing side wall; the flood control wall top slab 2 is arranged on the upper side of the flood control wall side wall 1; one side of the pier elevation side wall 11 is connected to the elevation of the ancient stone bridge pier, and the other side is connected to the flood control wall side wall 1; the lower side of the pier elevation side wall 11 is connected to the water diversion tip top slab 3.

[0043] In this embodiment, the ground 14 behind the flood control wall side wall 1 is the backwater side ground, and the ground 15 in front of the wall is the water-facing side ground.

[0044] The connection structure between the flood control wall, the ancient stone bridge pier, and the water diversion tip in the embodiment of the present invention forms an integral stress structure by arranging the pier elevation side wall 11, the water diversion tip top slab 3, and the front elevation side wall 13 of the water diversion tip on the outside of the connection body 6 of the existing ancient stone bridge pier and the water diversion tip, covering the connection body 6 of the existing ancient stone bridge pier and the water diversion tip and connecting it with the flood control wall side wall 1, avoiding the destructive treatment such as excavation and chiseling of the main structure of the ancient stone bridge during the construction of the flood control wall. Without damaging the structure of the existing ancient stone bridge pier and the water diversion tip, a flood control wall that is well-connected with the existing ancient bridge pier and the water diversion tip structure and meets the requirements of the closed flood control circle along the river can be constructed, meeting the requirements of cultural relic protection for the existing ancient bridge. On the other hand, by laying the buffer cushion layer 9 and the foundation floor slab 8 on the foundation around the connection body 6 of the existing ancient stone bridge pier and the water diversion tip, and connecting the flood control wall side wall 1 to the foundation floor slab 8, the additional load of the newly built flood control wall side wall 1 is directly transmitted to the foundation floor slab 8, reducing the additional load on the existing ancient stone bridge and improving the safety and durability of the existing ancient stone bridge.

[0045] Furthermore, the connection structure of the embodiment of the present invention further includes cement soil 7, which is filled in the space enclosed by the foundation floor slab 8, the front elevation side wall 13 of the water-dividing tip, the top plate 3 of the water-dividing tip, the water-facing side wall, and the backwater side wall. The backfill of the cement soil 7 can improve the stability of the foundation, increase the bearing capacity of the foundation, and contribute to the safety of the project. Through reasonable backfill, the foundation can be made more stable.

[0046] Furthermore, the four sides of the top plate 3 of the water-dividing tip of the embodiment of the present invention are respectively connected to the flood control wall side wall 1, the front elevation side wall 13 of the water-dividing tip, and the pier elevation side wall 11. A cavity structure is formed between the top plate 3 of the water-dividing tip, the flood control wall side wall 1, and the flood control wall top plate 2. The cavity structure can reduce the weight of the wall and the foundation load; and the cavity structure can greatly save masonry materials, taking into account durability, economy, and safety.

[0047] Furthermore, a vertical drainage pipe 10 is connected to the lower side of the flood control wall top plate 2 of the embodiment of the present invention. Specifically, a vertical drainage pipe 10 is provided at the bottom of the backwater side of the flood control wall top plate 2. The vertical drainage pipe 10 can guide the accumulated water on the flood control wall top plate into the existing drainage system. The vertical drainage pipe 10 can be pre-buried with PVC or other material pipes, with a pore diameter of 15 - 20 cm and a horizontal pore spacing of 3 - 5 m, which can be adjusted according to the size of the flood control wall.

[0048] Furthermore, a mortar plastering 16 is provided on the outer surface of the connection body 6 between the existing ancient stone bridge pier and the water-dividing tip of the embodiment of the present invention. The mortar plastering 16 can protect the building surface. The mortar plastering 16 can form a uniform protective layer to prevent moisture and harmful substances from penetrating into the interior of the ancient stone bridge, thereby extending the service life of the ancient stone bridge, because the cement mortar plastering 16 can reduce the weathering and aging of the ancient stone bridge and improve the waterproof property. In addition, the mortar plastering 16 can enhance the overall structural strength. The mortar plastering 16 increases the overall strength and stiffness of the ancient stone bridge by bonding with the building materials of the ancient stone bridge, improving the compressive, bending, and seismic resistance of the ancient stone bridge, thereby enhancing the structural stability of the ancient stone bridge.

[0049] Furthermore, a water stop structure 12 is provided at the connection between the pier elevation side wall 11 and the ancient stone bridge pier elevation of the embodiment of the present invention. The water stop structure 12 can ensure that the connection part between the flood control wall and the ancient stone bridge forms a closed system to meet the flood control requirements. Specifically, the water stop structure 12 of the embodiment of the present invention includes a polyethylene foam board and a water stop caulking rubber.

[0050] Furthermore, the connection structure of the embodiment of the present invention further includes floor tiles 4 and wall tiles 5. The floor tiles 4 are laid on the flood control wall top plate 2, and the wall tiles 5 are provided on the outer side of the flood control wall side wall 1. The material selection and type selection of the floor tiles 4 and the wall tiles 5 are consistent with the original style of the ancient stone bridge and blend into the local human landscape.

[0051] Furthermore, the flood control wall side wall 1, the foundation floor slab 8, the flood control wall top slab 2, the water diversion tip top slab 3, the pier facade side wall 11, and the water diversion tip front facade side wall 13 in the embodiments of the present invention are all of reinforced concrete structures, which are simple to construct and have high strength.

[0052] Embodiment 2

[0053] Embodiment 2 of the present invention provides a construction method for the connection structure between a flood control wall and an ancient stone bridge pier and a water diversion tip, including the following steps:

[0054] (1) Lay a buffer cushion layer 9 and a foundation floor slab 8 on the foundation around the connection body 6 of the existing ancient stone bridge pier and the water diversion tip.

[0055] (2) After the foundation floor slab 8 reaches the designed age strength, carry out the reinforced concrete formwork construction for the pier facade side wall 11, the water diversion tip front facade side wall 13, and the flood control wall side wall 1.

[0056] (3) After the flood control wall side wall 1 and the water diversion tip front facade side wall 13 reach the designed age strength, backfill the space enclosed by the foundation floor slab 8, the water diversion tip front facade side wall 11, and the flood control wall side wall 1 with cement soil 7, and complete the reinforced concrete formwork construction for the water diversion tip top slab 3 and the flood control wall top slab 2.

[0057] Before the construction of the above step (1), it is necessary to carry out geological exploration work on the project area and calculate the standard cross-sectional dimensions of the flood control wall side wall 1, the flood control wall top slab 2, and the foundation floor slab 8. Determine the thickness of the buffer cushion layer 9 and the foundation floor slab 8 according to the structural calculation. It is recommended to use plain concrete for the buffer cushion layer 9, and the thickness is recommended to be controlled at 10 - 20 cm. The flood control wall side walls 1 on the water-facing side and the backwater side are respectively arranged on the front side and the rear side of the foundation floor slab 8, and the thickness of the flood control wall side wall 1 is not less than 0.2 m.

[0058] Before the construction of the foundation floor slab 8, the embodiments of the present invention also include the construction step of applying a mortar plaster 16 to the connection body 6 of the existing ancient stone bridge pier and the water diversion tip. After the mortar plaster 16 is completed, carry out the reinforced concrete formwork construction for the foundation floor slab 8, and the concrete strength grade is not less than C30.

[0059] In the above step (3), the backfilled cement soil 7 can also be replaced with low-grade concrete or sand and gravel mixture, and the backfill compactness ≥ 97%.

[0060] During the construction process, a polyethylene foam board and a water-stop caulking sealant are set at the connection between the side wall 11 of the pier elevation and the pier elevation of the ancient stone bridge. The polyethylene foam board can adopt the specification size of 1200mm×600mm×40mm, with an apparent density of 18 - 22kg / m, a dimensional shrinkage rate <1.5%, and a water absorption rate <1.5%. Specific project detection indicators and quality acceptance shall comply with the relevant specifications for the design and construction quality acceptance of building energy efficiency projects. Polyurethane caulking sealant is used as the water-stop caulking sealant, and the model, detection indicators, and quality acceptance of the polyurethane caulking sealant material shall meet the relevant requirements of the polyurethane waterproof coating specification.

[0061] After the main project of the flood control wall connection structure is completed, the embodiments of the present invention further include the construction steps of the ground 14 behind the wall and the ground 15 in front of the wall. The ground 14 behind the wall is recommended to be controlled according to 100mm thick asphalt concrete, 200mm thick 6% cement stabilized macadam base, 200mm thick graded crushed stone cushion, and the compaction degree of the plain soil tamping ≥98%. The ground 15 in front of the wall can create a landscape effect in combination with the current riverside water environment of the river.

[0062] Furthermore, the construction method of the embodiments of the present invention also includes the steps of pasting wall tiles 5 on the exposed surface of the flood control wall side wall 1 and laying floor tiles 4 on the top of the flood control wall top plate 2. The selection of building materials for the wall tiles 5 and the floor tiles 4 should fully consider the existing materials of the ancient stone bridge, keep the color difference basically the same, and take into account the local humanistic style. It is recommended to use antique tiles, and the thickness of the antique tiles can be 10 - 15cm. Specifically, the construction of the top floor tiles 4 and the exterior wall tiles 5 can be carried out after the flood control wall side wall 1 and the flood control wall top plate 2 are poured and reach the design strength, which is in line with the local characteristics of the existing ancient stone bridge, takes into account the antique humanistic ecological landscape and the public's leisure sightseeing, and is convenient for repair. When constructing the floor tiles 4, attention should be paid to tilting them towards the water-receiving side to facilitate the accumulated water to quickly flow along the slope into the vertical drainage pipe 10, and the slope of the slope can be set at 2%.

[0063] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A connecting structure between a flood control wall, an ancient stone bridge pier and a water dividing point, characterized in that Comprising: The connecting body of the existing ancient stone bridge pier and the water-dividing tip; A buffer cushion layer, provided on the foundation around the connecting body of the existing ancient stone bridge pier and the water-dividing tip; A foundation bottom slab, provided on the buffer cushion layer; The flood control wall side walls, including the water-facing side wall and the water-backing side wall; the flood control wall side walls are provided on the foundation bottom slab; the connecting body of the existing ancient stone bridge pier and the water-dividing tip is clamped between the water-facing side wall and the water-backing side wall; The vertical side wall at the front edge of the water-dividing tip, provided on one side of the water-dividing tip, and the two sides of the vertical side wall at the front edge of the water-dividing tip are respectively connected to the water-facing side wall and the water-backing side wall; The top slab of the water-dividing tip, provided on the upper side of the water-dividing tip; The flood control wall top slab, the two ends of which are respectively connected to the water-facing side wall and the water-backing side wall; the flood control wall top slab is provided on the upper side of the flood control wall side walls; and, The vertical side wall of the pier, one side of which is connected to the vertical surface of the ancient stone bridge pier, and the other side is connected to the flood control wall side wall; the lower side of the vertical side wall of the pier is connected to the top slab of the water-dividing tip.

2. The connecting structure of a flood control wall with the pier and the water dividing tip of an ancient stone bridge according to claim 1, characterized in that, It further includes cement soil, and the cement soil fills the space surrounded by the foundation bottom slab, the vertical side wall at the front edge of the water-dividing tip, the top slab of the water-dividing tip, the water-facing side wall and the water-backing side wall.

3. The connecting structure of a flood control wall with the pier and the water dividing tip of an ancient stone bridge according to claim 1, characterized in that, The four sides of the top slab of the water-dividing tip are respectively connected to the flood control wall side walls, the vertical side wall at the front edge of the water-dividing tip and the vertical side wall of the pier, and a cavity structure is formed between the top slab of the water-dividing tip, the flood control wall side walls and the flood control wall top slab.

4. A connection structure between a flood control wall, an ancient stone bridge pier and a water dividing point, as described in any one of claims 1-3, characterized in that, A vertical drainage pipe is connected to the lower side of the flood control wall top slab.

5. The connecting structure of a flood control wall with the pier and the water dividing tip of an ancient stone bridge according to claim 4, characterized in that, The outer surface of the connecting body of the existing ancient stone bridge pier and the water-dividing tip is provided with a mortar plastering.

6. The connecting structure of a flood control wall with the pier and the water dividing tip of an ancient stone bridge according to claim 5, characterized in that, A water stop structure is provided at the connection between the vertical side wall of the pier and the vertical surface of the ancient stone bridge pier.

7. The connecting structure between a flood control wall, an ancient stone bridge pier and a water dividing tip according to claim 6, characterized in that, The water stop structure includes a polyethylene foam board and a water stop caulking adhesive.

8. The connecting structure of a flood control wall with the pier and the water diversion tip of an ancient stone bridge according to claim 6, characterized in that, It further includes floor tiles and wall tiles, the floor tiles are laid on the flood control wall top slab, and the wall tiles are provided on the outer side of the flood control wall side walls.

9. The connecting structure of a flood control wall with the pier and the water dividing tip of an ancient stone bridge according to claim 6, characterized in that The flood control wall side walls, the foundation bottom slab, the flood control wall top slab, the top slab of the water-dividing tip, the vertical side wall of the pier, and the vertical side wall at the front edge of the water-dividing tip are all of reinforced concrete structure.

10. The construction method of a connection structure between a flood control wall, an ancient stone bridge pier and a water dividing point, as described in any one of claims 1-9, is characterized in that, Including the following steps: Laying a buffer cushion layer and a foundation bottom slab on the foundation around the connecting body of the existing ancient stone bridge pier and the water-dividing tip; After the foundation bottom slab reaches the designed age strength, carrying out the formwork construction of reinforced concrete for the vertical side wall of the pier, the vertical side wall at the front edge of the water-dividing tip and the flood control wall side walls; After the flood control wall side walls and the vertical side wall at the front edge of the water-dividing tip reach the designed age strength, backfilling the space surrounded by the foundation bottom slab, the vertical side wall at the front edge of the water-dividing tip and the flood control wall side walls with cement soil, and completing the formwork construction of reinforced concrete for the top slab of the water-dividing tip and the flood control wall top slab.

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