Combined structure of embankment foot retaining wall and irrigation and drainage channel

Abstract

The utility model discloses an embankment foot retaining wall and irrigation and drainage channel combined structure which comprises a flood bank, an embankment foot retaining wall and a channel retaining wall, the flood bank is located on the soil retaining side of the embankment foot retaining wall, the channel retaining wall is located on the water retaining side of the embankment foot retaining wall, and a wall body of the embankment foot retaining wall extends towards one side of the flood bank. According to the utility model, the wall body of the foot retaining wall extends towards one side of the flood bank, so that the slope filling of the soil retaining side of the flood bank can be supported, retained and closed, and the land occupation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy project embankments and water system connections, and more specifically to a combined structure of an embankment foot retaining wall and an irrigation and drainage channel. Background Art

[0002] Embankments are primarily trapezoidal, sloped earth embankments. These structures are widely used in water conservancy and flood control projects due to their advantages, including abundant raw materials, local availability, simple construction, rapid construction, minimal implementation difficulty, short construction period, and low cost. However, these embankments also have significant drawbacks: the embankment fill and slope require significant land. In recent years, with the increasing scarcity of land resources, the designation of permanent basic farmland, and the implementation of the strictest farmland protection system, the difficulty of land acquisition and demolition for water conservancy projects has increased, resulting in certain limitations in the practical application of these embankments.

[0003] Furthermore, sloping and filling the embankment will also encroach on existing ditches and ponds, negatively impacting existing connected water systems. The traditional approach is to excavate outward from the embankment foot, restoring the original water system's functionality by constructing new irrigation and drainage ditches. These ditches typically employ trapezoidal earthen liners. In engineering practice, because irrigation and drainage ditches are typically long, outward expansion significantly increases land occupation, especially when the ditches are deep. This inadvertently increases the difficulty of land acquisition coordination and the investment required to supplement the land occupation, making implementation difficult.

[0004] Based on this, it is very necessary to explore a combined structure of embankment foot retaining wall and irrigation and drainage channel that can achieve the filling and slope reduction of the embankment and the connectivity of the irrigation and drainage system while minimizing the additional land occupation. Utility Model Content

[0005] The technical problem to be solved by the utility model is how to reduce the occupation of land by the embankment structure.

[0006] The utility model solves the above-mentioned technical problems through the following technical means: a combined structure of a levee retaining wall and an irrigation and drainage channel, including a flood control levee, a levee retaining wall, and a channel retaining wall. The flood control levee is located on the soil retaining side of the levee retaining wall, the channel retaining wall is located on the water retaining side of the levee retaining wall, and the wall body of the levee retaining wall extends toward one side of the flood control levee.

[0007] By extending the wall of the foot retaining wall toward the side of the flood embankment, the slope fill on the retaining side of the flood embankment can be supported and the slope can be reduced, thereby reducing the occupation of land.

[0008] As a preferred technical solution, one end of the embankment foot retaining wall facing away from the flood control embankment is enclosed by the channel retaining wall to form an irrigation and drainage channel.

[0009] As a preferred technical solution, the embankment foot retaining wall is connected to the channel retaining wall through a staggered joint structure.

[0010] As an optimal technical solution, the embankment foot retaining wall is arranged in the form of a gravity retaining wall. The embankment foot retaining wall includes a wall body and a lower base plate. The wall body and the lower base plate are anchored and connected by pre-embedded dowels, and the pre-embedded dowels are evenly arranged.

[0011] As an optimal technical solution, the lower base plate includes a front toe of the base plate and a rear toe of the base plate. The front toe of the base plate is located on the water retaining side of the embankment retaining wall, and the rear toe of the base plate is located on the soil retaining side of the embankment retaining wall.

[0012] As an optimal technical solution, the channel retaining wall is arranged in the form of a cantilever retaining wall, and the channel retaining wall includes an integrally formed front cantilever plate, a rear cantilever plate, and a vertical wall body. The vertical wall body is vertically fixed to the front cantilever plate and the rear cantilever plate. The front cantilever plate is located on the water retaining side of the channel retaining wall, and the rear cantilever plate is located on the soil retaining side of the channel retaining wall.

[0013] As a preferred technical solution, the upright wall is arranged upright, and the connecting ends of the upright wall and the front cantilever plate and the rear cantilever plate are provided with corners and arms.

[0014] As an optimal technical solution, the joint structure includes an upper plate, a lower plate, a caulking plate, and a caulking sealant. The end of the embankment retaining wall connected to the channel retaining wall and the end of the channel retaining wall connected to the embankment retaining wall are respectively provided with corresponding anti-slip tooth walls. The embankment retaining wall is provided with an upper plate, and the channel retaining wall is provided with a lower plate. A joint is provided between the embankment retaining wall and the channel retaining wall, a caulking plate is provided in the joint, and a caulking sealant is provided on the top of the joint.

[0015] As a preferred technical solution, a water stop is provided at the lower portion of the overlapping surface of the two anti-slip tooth walls.

[0016] As a preferred technical solution, protective railings are provided on the tops of the embankment retaining wall and the channel retaining wall.

[0017] The beneficial effects of the present invention are:

[0018] (1) In the present invention, by extending the wall of the foot retaining wall toward one side of the flood embankment, the slope fill on the retaining side of the flood embankment can be supported and the slope can be reduced, thereby reducing the occupation of land.

[0019] (2) In the present invention, the irrigation and drainage channels are formed by enclosing the side of the upright wall away from the ground, the front cantilever plate, the front toe of the bottom plate, and the side of the wall away from the flood control embankment, so as to realize the connection of the water system and further reduce the occupation of land.

[0020] (3) In the present invention, by adding a staggered joint structure between the embankment retaining wall and the channel retaining wall, the problem of the bottom plate being cracked due to uneven settlement of the wall can be effectively avoided, and it is also beneficial to the later operation management and maintenance and channel repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present utility model;

[0022] Figure 2 A schematic cross-sectional view of an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of a split structure provided by an embodiment of the present utility model;

[0024] Figure numbers: 10. Flood control dike; 11. Left embankment slope; 12. Right embankment slope; 13. Embankment top; 20. Embankment foot retaining wall; 21. Front toe of bottom plate; 22. Rear toe of bottom plate; 23. Wall; 24. Embedded dowels; 30. Channel retaining wall; 31. Front cantilever plate; 32. Rear cantilever plate; 33. Vertical wall; 40. Joint structure; 41. Upper cladding; 42. Lower cladding; 43. Waterstop; 44. Filling plate; 45. Caulking sealant. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] See Figure 1 、 Figure 2 A combined structure of a levee retaining wall and an irrigation and drainage channel includes a flood levee 10, a levee retaining wall 20, a channel retaining wall 30, and a joint structure 40. The flood levee 10 is located on the soil retaining side of the levee retaining wall 20, and the channel retaining wall 30 is located on the water retaining side of the levee retaining wall 20. In this embodiment, the soil retaining side is the back side of the wall to achieve soil retaining, and the water retaining side is the wall surface side to achieve water retaining. The wall body 23 of the levee retaining wall 20 extends toward one side of the flood levee 10, which can support and reduce the slope fill on the soil retaining side of the flood levee 10, thereby reducing the land occupation.

[0027] The embankment retaining wall 20 and the channel retaining wall 30 are connected by a staggered joint structure 40, which can prevent the bottom plate from cracking due to uneven settlement of the wall. At the same time, an irrigation and drainage channel is formed between the embankment retaining wall 20 and the channel retaining wall 30.

[0028] See Figure 2 The cross-section of the flood embankment 10 is trapezoidal in shape. The slope away from the irrigation and drainage channel is the left embankment slope 11, the slope close to the irrigation and drainage channel is the right embankment slope 12, and the top surface is the embankment top 13. The embankment foot retaining wall 20 is adjacent to the right embankment slope 12. The embankment foot retaining wall 20 includes a wall body 23 and a lower bottom plate. The wall body 23 is fixedly connected to the lower bottom plate. The lower bottom plate includes a front toe 21 and a rear toe 22 of the bottom plate. The embankment foot retaining wall 20 adopts a gravity retaining wall structure, and the front toe 21, the rear toe 22 and the wall body 23 are an integrally formed structure. In this embodiment, the embankment foot retaining wall 20 is a C25 plain concrete structure.

[0029] The front toe 21 of the bottom plate extends toward the channel retaining wall 30. The thickness of its rectangular cross-section flat bottom plate is not less than 400 mm. The end connected to the channel retaining wall 30 is provided with a deepened anti-slip tooth wall. The rear toe 22 of the bottom plate extends toward the flood embankment 10. The thickness of its rectangular cross-section flat bottom plate is the same as that of the front toe 21 of the bottom plate. The water-facing side of the wall body 23 is vertical, and the back of the retaining side wall is in an obtuse-angled broken line shape. The top of the wall is slightly higher than the bottom of the right embankment slope 12 by not less than 200 mm.

[0030] The wall body 23 of the embankment retaining wall 20 and its lower foundation base plate are anchored and connected by pre-embedded dowels 24, thereby improving the overall stability of the retaining wall structure. The pre-embedded dowels 24 are HRB400 grade steel bars with a diameter of 14 to 18 mm, a single length of 600 mm to 800 mm, and a longitudinal and transverse spacing of 300 mm. They are evenly arranged. In this embodiment, a plum blossom-shaped arrangement is used as an example, but it is not limited to this. Other array distributions such as rectangular and circular arrays can also be used.

[0031] See Figure 2 The channel retaining wall 30 adopts a C25 reinforced concrete cantilever retaining wall structure. The channel retaining wall 30 includes a front cantilever plate 31, a rear cantilever plate 32 and a vertical wall body 33, which are cast in one piece. The overall cross-section is in an inverted T shape. The front cantilever plate 31 extends toward the side of the embankment foot retaining wall 20. The thickness of the rectangular cross-section flat bottom plate is not less than 400 mm. The end connected to the front toe 21 of the bottom plate is provided with a deepened anti-slip tooth wall. The rear cantilever plate 32 extends to the rear retaining side of the vertical wall body 33. The thickness of the rectangular cross-section flat bottom plate is the same as that of the front cantilever plate 31. The side of the vertical wall body 33 away from the ground, the front cantilever plate 31, the front toe 21 of the bottom plate, and the side of the wall body 23 away from the flood control embankment 10 enclose an irrigation and drainage channel.

[0032] In this embodiment, the upright wall 33 is upright, and the top of the wall is slightly higher than the fill surface behind the wall by not less than 200 mm. The intersection of the upright wall 33 and the fixed end supports of the front cantilever plate 31 and the rear cantilever plate 32 are provided with corner fillets and armpits to enhance the shear resistance of the structure. The corner fillets and armpits are cast as a whole with the front cantilever plate 31, the rear cantilever plate 32 and the upright wall 33.

[0033] See Figure 2 、 Figure 3 The staggered joint structure 40 includes an upper plate 41, a lower plate 42, a waterstop 43, a caulking plate 44, and a caulking sealant 45. The front toe 21 of the base plate and the front cantilever plate 31 are staggered, and a gap is left between them to form a joint. The lower plate 42 is integrally cast on the front toe 21 of the base plate, and the upper plate 41 is integrally cast on the front cantilever plate 31. The waterstop 43 is arranged at the lower part of the overlapping surface between the front toe 21 of the base plate and the front cantilever plate 31. The joint is filled with a caulking plate 44, and the caulking sealant 45 is fixed at the top of the joint.

[0034] See Figure 2 The wall body 23 of the embankment foot retaining wall 20 and the top of the upright wall body 33 of the channel retaining wall 30 are both provided with protective railings, and the height of the railings is not less than 1.2m.

[0035] Usage method: The embankment foot retaining wall 20 is used to reduce the slope and retain soil, which can reduce the newly occupied land while ensuring the stability of the slope soil, and reduce the amount of land acquisition and resettlement engineering and investment; the front cantilever plate 31, the upright wall body 33 of the channel retaining wall 30 and the wall body 23 and the front toe 21 of the bottom plate of the embankment foot retaining wall 20 form a rectangular irrigation and drainage channel, which can achieve the dual effects of water system connectivity and further land saving, and achieve the purpose of reducing costs and increasing efficiency; the embankment foot retaining wall 20 and the channel retaining wall 30 are connected by a staggered joint structure 40, which can effectively avoid the problem of the bottom plate being cracked due to uneven settlement of the wall, and is also beneficial to the later operation management and maintenance and channel repair.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A combined structure of a levee retaining wall and an irrigation and drainage channel, characterized in that: It includes a flood levee, a levee foot retaining wall, and a channel retaining wall. The flood levee is located on the soil retaining side of the levee foot retaining wall, the channel retaining wall is located on the water retaining side of the levee foot retaining wall, and the wall body of the levee foot retaining wall extends toward one side of the flood levee.

2. The combined structure of embankment retaining wall and irrigation and drainage channel according to claim 1, characterized in that: One end of the embankment foot retaining wall away from the flood control embankment is enclosed with the channel retaining wall to form an irrigation and drainage channel.

3. The combined structure of embankment retaining wall and irrigation and drainage channel according to claim 1, characterized in that: The embankment foot retaining wall is connected to the channel retaining wall through a staggered joint structure.

4. The combined structure of embankment retaining wall and irrigation and drainage channel according to claim 1, characterized in that: The embankment foot retaining wall is arranged in the form of a gravity retaining wall. The embankment foot retaining wall includes a wall body and a lower base plate. The wall body and the lower base plate are anchored and connected by pre-embedded dowels, and the pre-embedded dowels are evenly arranged.

5. The combined structure of embankment retaining wall and irrigation and drainage channel according to claim 4, characterized in that: The lower base plate includes a front toe of the base plate and a rear toe of the base plate. The front toe of the base plate is located on the water retaining side of the embankment foot retaining wall, and the rear toe of the base plate is located on the soil retaining side of the embankment foot retaining wall.

6. The combined structure of embankment retaining wall and irrigation and drainage channel according to claim 1, characterized in that: The channel retaining wall is arranged in the form of a cantilever retaining wall, and the channel retaining wall includes an integrally formed front cantilever plate, a rear cantilever plate, and a vertical wall body. The vertical wall body is vertically fixed to the front cantilever plate and the rear cantilever plate. The front cantilever plate is located on the water retaining side of the channel retaining wall, and the rear cantilever plate is located on the soil retaining side of the channel retaining wall.

7. The combined structure of embankment retaining wall and irrigation and drainage channel according to claim 6, characterized in that: The upright wall is arranged upright, and the connection ends of the upright wall and the front cantilever plate and the rear cantilever plate are all provided with corners and arms.

8. The combined structure of embankment foot retaining wall and irrigation and drainage channel according to claim 3, characterized in that: The joint structure includes an upper strap, a lower strap, a caulking plate, and a caulking sealant. The end of the embankment foot retaining wall connected to the channel trough retaining wall and the end of the channel trough retaining wall connected to the embankment foot retaining wall are respectively provided with matching anti-slip tooth walls. The embankment foot retaining wall is provided with an upper strap, and the channel trough retaining wall is provided with a lower strap. A joint is provided between the embankment foot retaining wall and the channel trough retaining wall, a caulking plate is provided in the joint, and a caulking sealant is provided on the top of the joint.

9. The combined structure of embankment retaining wall and irrigation and drainage channel according to claim 8, characterized in that: A water stop is provided at the lower part of the overlapping surface of the two anti-slip tooth walls.

10. The combined structure of embankment retaining wall and irrigation and drainage channel according to claim 1, characterized in that: The tops of the embankment retaining wall and the channel retaining wall are both provided with protective railings.

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