Dike flood drainage transformation structure

Abstract

The utility model discloses an embankment drainage transformation structure which comprises a dam body bottom structure composed of a waterside slope toe retaining wall and a clay anti-seepage wall, and a dam face structure composed of an ecological protection slope, a riding track and an embankment top shortcut is arranged above the dam body bottom structure. A wave wall is arranged on the waterside of the levee top shortcut, and a drainage ditch behind the levee is excavated in the bottom of the ecological protection slope on the backwater side; a diversion trench is formed in the side surface of the side, close to water, of the ecological protection slope, the diversion trench communicates with the drainage ditch behind the embankment through a drainage steel pipe, and an automatic control valve is arranged on the side, facing the diversion trench, of the drainage steel pipe. And the flood drainage station installation machine cannot certainly meet the flood drainage requirement under the extreme rainstorm, and the position of the flood drainage station installation machine is not certainly selected in all areas prone to waterlogging, and can automatically achieve drainage if water exists behind the dike and blocking if water exists outside the dike according to the water pressure conditions of the inner side and the outer side.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to a dike drainage reconstruction structure. Background Art

[0002] Against the backdrop of global warming, extreme rainstorms occur frequently in my country. A large number of coastal and even inland cities are prone to urban waterlogging in extreme short-term rainstorms, causing a large number of casualties and property losses. Although the discharge of reservoir water can be reduced through joint dispatching of upstream reservoirs before the arrival of extreme rainstorms, and the flood discharge pressure of downstream rivers can be reduced when rainstorms come, the existing embankments are mainly used to block river floods to ensure the safety behind the embankments, and the drainage design within the embankment protection area is far from meeting the extreme rainstorm rainfall discharge demand, resulting in waterlogging. At present, drainage is often carried out by building drainage stations, which not only have high construction and operation costs, but also the installed capacity of the drainage stations may not meet the drainage requirements under extreme rainstorms, and their locations may not be selected in all areas prone to waterlogging. Therefore, it is necessary to design a embankment drainage renovation structure to solve the above problems and realize drainage renovation on existing embankments in areas prone to waterlogging. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a dike drainage reconstruction structure to solve the problem that the existing technology of drainage by building drainage stations has high construction and operation costs, and the installed capacity of the drainage stations may not meet the drainage requirements under extreme rainstorms, and the locations of the drainage stations may not be selected in all areas prone to waterlogging.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A dike drainage reconstruction structure comprises a dam body bottom structure consisting of a retaining wall at the foot of the slope on the water side and a clay anti-seepage wall, a dam surface structure consisting of an ecological slope protection, a horse path and a dike top walkway is arranged above the dam body bottom structure; a wave-breaking wall is arranged on the water side of the dike top walkway, and a dike rear drainage ditch is excavated at the bottom of the ecological slope protection on the backwater side; a diversion ditch is opened on the side surface of the ecological slope protection on the water side, the diversion ditch is connected with the dike rear drainage ditch through a drainage steel pipe, and an automatic control valve is arranged on the drainage steel pipe facing the diversion ditch.

[0006] Preferably, the drainage steel pipe is arranged to be inclined transversely to the river and penetrate the embankment, the water inlet end of the drainage steel pipe is connected to the drainage ditch behind the embankment, and the bottom elevation of the water inlet end of the drainage steel pipe is lower than the elevation of the bottom plate of the drainage ditch behind the embankment.

[0007] Furthermore, the drainage steel pipe facilitates the discharge of water; a drainage ditch behind the embankment is provided on the inner side of the embankment to divert the water flow in the flooded area to the water inlet of the steel pipe.

[0008] Preferably, a trash rack is provided at the water inlet of the drainage steel pipe to prevent various debris in the waterlogged area from entering the steel pipe.

[0009] Preferably, the outlet of the drainage steel pipe is connected to the diversion ditch, and the elevation of the outlet of the drainage steel pipe is lower than the elevation of the inlet of the drainage steel pipe, and the lowest is not less than the design flood level of the water level test.

[0010] Furthermore, by installing drainage steel pipes on the existing embankments, the drainage barrier between the flooded area behind the embankments and the river channel can be opened up, allowing the accumulated water to be discharged quickly.

[0011] Preferably, the diversion ditch includes an L-shaped structure consisting of a pier concrete structure, ditch concrete side walls and a concrete bottom plate. The ditch concrete side walls and the concrete bottom plate extend downward from the outlet of the drainage steel pipe to the river surface; the pier concrete structure is used for automatic control valve installation.

[0012] Preferably, the automatic control valve comprises a steel valve, which is hinged to the outlet of the steel drainage pipe via a rotating shaft; the rotating shaft is hinged to a fixed support above the outlet of the steel drainage pipe.

[0013] Preferably, slide grooves are provided on both sides of the steel valve, and hydraulic servo cylinders are symmetrically arranged on both sides of the drainage steel pipe outlet. One end of the hydraulic servo cylinder is hinged to the concrete structure of the anchor pier, and the other end is hinged to a hinge support with a pulley slidingly connected to the slide grooves on both sides of the valve. A water-stop rubber ring is provided at the drainage steel pipe outlet.

[0014] Furthermore, the concrete structure of the anchor pier is 50cm away from the steel pipe outlet and 20cm wider than the two sides of the valve, which is convenient for valve installation. The anchor pier concrete mainly plays a stabilizing role on the steel pipe outlet end; the concrete side walls and concrete bottom plate of the diversion ditch can protect the original embankment.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. Laying out drainage steel pipes can open up the drainage barrier between the flooded area behind the embankment and the river during extreme rainstorms;

[0017] 2. The control valve can automatically drain water behind the dike and block water outside the dike according to the water pressure inside and outside;

[0018] 3. This structure can bury steel pipes on the existing embankment foundation through jacking construction, which is convenient and low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 This is a general schematic diagram of the drainage structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the automatic control valve of the utility model;

[0022] In the figure: conventional embankment structures such as retaining wall 1 at the foot of the waterside slope, clay anti-seepage wall 2, ecological slope protection 3, horseway 4, embankment access road 5, wave-breaking wall 6, drainage ditch behind the embankment 7, as well as drainage steel pipe 8, automatic control valve 9, steel valve 9-1, rotating shaft 9-2, fixed support 9-3, slide 9-4, hydraulic servo cylinder 9-5, hinge support 9-7, water-stop rubber ring 9-8, diversion ditch 10, concrete structure of pier 10-1, diversion ditch concrete side wall 10-2, concrete bottom plate 10-3. DETAILED DESCRIPTION

[0023] like Figure 1-2 As shown, a dike drainage reconstruction structure includes a dam body bottom structure consisting of a retaining wall 1 on the water side slope foot and a clay anti-seepage wall 2, and a dam surface structure consisting of an ecological slope protection 3, a horse path 4 and a dike top access road 5 is arranged above the dam body bottom structure; a wave-breaking wall 6 is arranged on the water side of the dike top access road 5, and a dike rear drainage ditch 7 is excavated at the bottom of the ecological slope protection 3 on the back water side; a diversion ditch 10 is opened on the side surface of the ecological slope protection 3 on the water side, and the diversion ditch 10 is connected with the dike rear drainage ditch 7 through a drainage steel pipe 8, and an automatic control valve 9 is arranged on the drainage steel pipe 8 toward the diversion ditch 10.

[0024] Preferably, the drainage steel pipe 8 is arranged to be inclined transversely to the river and penetrate the embankment, the water inlet end of the drainage steel pipe 8 is connected to the drainage ditch 7 behind the embankment, and the bottom elevation of the water inlet end of the drainage steel pipe 8 is lower than the bottom plate elevation of the drainage ditch 7 behind the embankment.

[0025] Furthermore, the drainage steel pipe 8 facilitates the discharge of water; a drainage ditch 7 behind the embankment is provided on the inner side of the embankment to divert the water flow in the flooded area to the water inlet of the steel pipe.

[0026] Preferably, a trash rack is provided at the water inlet of the drainage steel pipe 8.

[0027] Preferably, the outlet of the drainage steel pipe 8 is connected to the diversion ditch 10, and the elevation of the outlet of the drainage steel pipe 8 is lower than the elevation of the inlet of the drainage steel pipe 8, and the lowest is not less than the design flood level of the water level test.

[0028] Furthermore, by installing a drainage steel pipe 8 on the existing embankment, the drainage barrier between the waterlogged area behind the embankment and the river channel can be opened up, so that the accumulated water can be quickly discharged.

[0029] Preferably, the diversion ditch 10 includes an L-shaped structure consisting of a pier concrete structure 10-1, a ditch concrete side wall 10-2 and a concrete bottom plate 10-3. The ditch concrete side wall 10-2 and the concrete bottom plate 10-3 extend downward from the outlet of the drainage steel pipe 8 to the river surface; the pier concrete structure 10-1 is used for the installation of the automatic control valve 9.

[0030] Preferably, the automatic control valve 9 includes a steel valve 9-1, which is hinged to the outlet of the drainage steel pipe 8 through a rotating shaft 9-2; the rotating shaft 9-2 is hinged to a fixed support 9-3 above the outlet of the drainage steel pipe 8.

[0031] Preferably, slide grooves 9-4 are provided on both sides of the steel valve 9-1, and hydraulic servo cylinders 9-5 are symmetrically arranged on both sides of the outlet of the drainage steel pipe 8. One end of the hydraulic servo cylinder 9-5 is hinged to the anchor pier concrete structure 10-1, and the other end is hinged to a hinge support 9-7 with a pulley slidably connected to the slide grooves 9-4 on both sides of the valve. A water-stop rubber ring 9-8 is provided at the outlet of the drainage steel pipe 8.

[0032] Furthermore, the anchor pier concrete structure 10-1 is 50 cm away from the steel pipe outlet and 20 cm wider than the two sides of the valve, which is convenient for valve installation. The anchor pier concrete mainly plays a stabilizing role on the steel pipe outlet end; the diversion ditch concrete side walls and concrete bottom plate can protect the original embankment.

[0033] The working principle of the utility model is as follows:

[0034] When there is no waterlogging behind the dike and the water level on the water side of the dike is lower than the bottom elevation of the automatic control valve 9, the automatic control valve 9 automatically closes around the rotation axis under the action of gravity;

[0035] When the water behind the dike is flooded and the water level on the water side of the dike is lower than the water level behind the dike, the water behind the dike enters the drainage steel pipe 8, and the water pressure in the pipe acts on the automatic control valve 9 / the water pressure inside the pipe of the automatic control valve 9 is greater than the water pressure on the river side, driving the hydraulic servo cylinder 9-5 to push the automatic control valve 9 to open and discharge water; when the water pressure in the pipe is relatively large, the hinge supports on the slide grooves on both sides of the automatic control valve 9 slide upward, which can further increase the valve opening to discharge water.

[0036] When the water level behind the dike is lower than the water level on the water side of the dike, the automatic control valve 9 is closed, and the hydraulic servo cylinder 9-5 is pressurized to close the automatic control valve 9.

[0037] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A levee drainage reconstruction structure, comprising a dam bottom structure consisting of a water-side slope foot retaining wall (1) and a clay anti-seepage wall (2), and a dam surface structure consisting of an ecological slope protection (3), a horse path (4) and a levee top access road (5) arranged above the dam bottom structure; characterized in that: A wave-breaking wall (6) is arranged on the water side of the dike top access road (5), and a drainage ditch (7) behind the dike is excavated at the bottom of the ecological slope protection (3) on the backwater side; a diversion ditch (10) is opened on the side surface of the ecological slope protection (3) on the water side, and the diversion ditch (10) is connected to the drainage ditch (7) behind the dike through a drainage steel pipe (8), and an automatic control valve (9) is arranged on the side of the drainage steel pipe (8) facing the diversion ditch (10).

2. A dike drainage reconstruction structure according to claim 1, characterized in that: The drainage steel pipe (8) is arranged to be inclined transversely to the river and penetrate the embankment. The water inlet end of the drainage steel pipe (8) is connected to the drainage ditch (7) behind the embankment. The bottom elevation of the water inlet end of the drainage steel pipe (8) is lower than the bottom plate elevation of the drainage ditch (7) behind the embankment.

3. A dike drainage reconstruction structure according to claim 2, characterized in that: A trash rack is provided at the water inlet of the drainage steel pipe (8).

4. The levee drainage reconstruction structure according to claim 1, characterized in that: The outlet of the drainage steel pipe (8) is connected to the diversion ditch (10), and the elevation of the outlet of the drainage steel pipe (8) is lower than the elevation of the inlet of the drainage steel pipe (8), and the lowest is not less than the design flood level of the water level test.

5. The levee drainage reconstruction structure according to claim 1, characterized in that: The diversion ditch (10) comprises an L-shaped structure consisting of a pier concrete structure (10-1), a ditch concrete side wall (10-2) and a concrete bottom plate (10-3). The ditch concrete side wall (10-2) and the concrete bottom plate (10-3) extend downward from the outlet of the drainage steel pipe (8) to the river surface. The pier concrete structure (10-1) is used for installing an automatic control valve (9).

6. The levee drainage reconstruction structure according to claim 1, characterized in that: The automatic control valve (9) comprises a steel valve (9-1), which is hinged to the pipe mouth of the drainage steel pipe (8) via a rotating shaft (9-2); the rotating shaft (9-2) is hinged to a fixed support (9-3) above the water outlet of the drainage steel pipe (8).

7. The levee drainage reconstruction structure according to claim 6, characterized in that: Slide grooves (9-4) are provided on both sides of the steel valve (9-1), and hydraulic servo cylinders (9-5) are symmetrically arranged on both sides of the water outlet of the drainage steel pipe (8). One end of the hydraulic servo cylinder (9-5) is hinged to the anchor pier concrete structure (10-1), and the other end is hinged to a hinge support (9-7) with a pulley that is slidably connected to the slide grooves (9-4) on both sides of the valve. A water stop rubber ring (9-8) is provided at the water outlet of the drainage steel pipe (8).

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