Urban channel dike retaining wall structure

Abstract

The utility model discloses an urban channel embankment retaining wall structure which comprises an embankment, a water retaining system and a drainage system. The dike comprises a gravity type retaining wall and a concrete bottom plate, the gravity type retaining wall is of a right trapezoid section, the upstream side is vertical, the top of the concrete bottom plate is a horizontal plane and bears the gravity type retaining wall, the upstream side is thickened, and the dike is arranged on the two sides of the channel; the water retaining system comprises at least two groups of breast boards which can be moved into or out of the channel to connect and disconnect water flow, and an enclosure space formed by the two groups of breast boards and the dike is used as a construction area; the drainage system comprises a drainage main pipe and a drainage branch pipe, the drainage main pipe is arranged along the backwater side slope toe of the gravity type retaining wall in a full-length mode and located at the top of the concrete bottom plate, and the drainage branch pipe is located at the top of the concrete bottom plate and communicated with the channel at one end and connected into the drainage main pipe at the other end. The front portion of each drainage branch pipe is provided with a gate groove and a gate capable of sliding up and down along the gate groove, the drainage system is opened and closed by opening and closing the gates, and the drainage branch pipes are arranged on the outer sides of the at least two breast boards to serve as water inlet ends and water outlet ends respectively. According to the utility model, through gate lifting, breast board assembly and drainage of the drainage main pipe / branch pipe, the construction diversion of the dredging and overhauling channel section can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of urban water conservancy projects, in particular to a retaining wall structure for urban channel dikes. Background Technique

[0002] With the acceleration of the urbanization process, urban flood control and channel treatment have become important parts of urban planning and management. Urban channels play a crucial role in urban infrastructure. They are not only responsible for transporting and distributing water resources, but also undertake various functions such as flood control and drainage, drainage, irrigation, and beautifying the urban environment. The continuity of water flow in urban channels is crucial for maintaining the above functions.

[0003] At present, most retaining walls for urban channel dikes adopt simple concrete or masonry gravity structures, with single structural functions and many limitations. As the use time of the channel increases, silt will continuously accumulate at the bottom of the channel, which will affect the normal use function of the channel when it accumulates to a certain extent; in addition, sluice gates, pumping stations, etc. set on some channel sections also need to be regularly maintained, and both channel dredging and facility maintenance require dry construction, which requires the diversion of the water flow in the channel. To ensure the normal use function of the channel, the water flow in the channel cannot be interrupted, and for channels located in built-up areas, their sides are generally adjacent to buildings, and it is impossible to adopt the method of enclosing with upstream and downstream cofferdams and excavating open channels on the side for diversion. The currently available diversion methods are as follows: filling earth-rock cofferdams upstream and downstream of the channel section occupied by dredging or maintenance, burying culverts between the upstream and downstream cofferdams for water discharge or using pumps to pump the upstream water flow to the downstream. However, burying large-diameter culverts in the middle of the channel will affect dredging and maintenance work; the cost of pumping with pumps is relatively high when the water flow is large, and configuring large-flow pumps will also increase the difficulties in organizing construction electricity, etc. Both methods have certain limitations and cannot meet the actual needs. In addition, the material sources for earth-rock cofferdams need to be purchased, and the earth-rock of the cofferdams is difficult to be reused multiple times after being soaked in water. For very long channels, even if constructed in sections, a large amount of earth and stone materials are required, and the waste slag generated from the removal of the cofferdams for external transportation and disposal will also increase the construction cost and organizational difficulty. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a retaining wall structure for urban channel dikes.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a retaining wall structure for urban channel dikes, including a dike, a water retaining system, and a drainage system;

[0007] The levee includes a gravity retaining wall and a concrete floor slab. The gravity retaining wall has a right trapezoidal cross-section with a vertical water-facing side. The top of the concrete floor slab is horizontal, bearing the gravity retaining wall, and the water-facing side is thickened. The levee is provided on both sides of the channel.

[0008] The water retaining system includes at least two groups of baffles that can be moved into or out of the channel to cut off or allow the flow of water. The enclosed space formed by the two groups of baffles and the levee serves as the construction area.

[0009] The drainage system includes a main drainage pipe and branch drainage pipes. The main drainage pipe is arranged along the toe of the backwater side slope of the gravity retaining wall, located at the top of the concrete floor slab. The branch drainage pipes are located at the top of the concrete floor slab, with one end connected to the channel and the other end connected to the main drainage pipe. Gate slots and gates that can slide up and down along the gate slots are provided at the front of the branch drainage pipes. The drainage system is opened and closed by opening and closing the gates. Drainage branch pipes are provided on the outer sides of at least two groups of baffles, serving as the inlet end and the outlet end respectively.

[0010] Further, the baffle is a medium-thick strip plate with a length greater than the width of the channel. A groove is provided at its upper part and a protrusion is provided at its lower part, and the upper and lower baffles fit tightly together.

[0011] Further, the water retaining system includes plate slots, which are symmetrically arranged on the levees on both sides of the channel. The baffles are moved into or out of the channel by inserting or withdrawing them into or from the plate slots.

[0012] Further, the plate slots run vertically from the top of the gravity retaining wall to the middle of the concrete floor slab, and the baffles fit tightly with the plate slots.

[0013] Further, a plurality of plate slots are arranged perpendicular to the center line of the channel at a certain distance along the flow direction of the channel.

[0014] Further, the water retaining system includes a plunger, which consists of a square column, a stiffening body, and a column foot. The square column can fit and be embedded in the plate slot. The square column and the column foot are in an L shape. The stiffening body is a steel bar with a bent end, passing through the square column and the column foot.

[0015] Further, the gate slot is a rectangular slot, running horizontally through the gravity retaining wall. The width of the gate slot is greater than the diameter of the branch drainage pipe, and the height is greater than twice the diameter of the branch drainage pipe.

[0016] Further, the gate consists of a lower baffle and an upper lifting rod. The baffle is a rectangular medium-thick plate, which can fit and be embedded in the gate slot, with a height greater than the diameter of the branch drainage pipe. An arc-shaped slot runs vertically through the gravity retaining wall at the middle position above the gate slot, and the lifting rod fits into the arc-shaped slot.

[0017] The beneficial effects of the present utility model are:

[0018] The utility model adopts an assembled water retaining system and a pre-buried drainage system, which can be quickly assembled and constructed; through the lifting and lowering of the gate, the assembly of the railing panel and the drainage of the main / branch drainage pipes, the construction diversion of the silt cleaning and maintenance section can be realized, with simple operation and high efficiency; the railing panels of each section are shared and can be reused, and the operation and maintenance costs are low, effectively solving the problems of the single structural function of the existing urban channel dike retaining wall, the difficulty and high cost of the silt cleaning and maintenance diversion of the channel section. Description of the Drawings

[0019] Figure 1 It is a general schematic diagram of the urban channel dike retaining wall of Embodiment 1 of the utility model;

[0020] Figure 2 It is an axonometric view of the structural enclosure condition of the urban channel dike retaining wall of Embodiment 1 of the utility model;

[0021] Figure 3 It is a front view of the structural enclosure condition of the urban channel dike retaining wall of Embodiment 1 of the utility model;

[0022] Figure 4 It is an axonometric view of the railing panel of the urban channel dike retaining wall structure of the utility model;

[0023] Figure 5 It is a front view of the railing panel of the urban channel dike retaining wall structure of the utility model;

[0024] Figure 6 It is an axonometric view of the normal water passing condition of the urban channel dike retaining wall structure of Embodiment 1 of the utility model;

[0025] Figure 7 It is a front view of the normal water passing condition of the urban channel dike retaining wall structure of Embodiment 1 of the utility model;

[0026] Figure 8 It is an axonometric view of the plunger of the urban channel dike retaining wall structure of the utility model;

[0027] Figure 9 It is a top view of the plunger of the urban channel dike retaining wall structure of the utility model;

[0028] Figure 10 It is a left view of the structural enclosure condition of the urban channel dike retaining wall of Embodiment 1 of the utility model;

[0029] Figure 11 It is an axonometric view of the gate of the urban channel dike retaining wall structure of the utility model;

[0030] Figure 12 It is an axonometric view of the drainage system of the urban channel dike retaining wall structure of Embodiment 2;

[0031] Figure 13 It is a front view of the drainage system of the urban channel dike retaining wall structure of Embodiment 2;

[0032] Figure 14 This is the top view of the enclosure working condition of the urban channel dike retaining wall structure in Embodiment 1 of the present utility model;

[0033] Figure 15 This is the top view of the normal water passing working condition of the urban channel dike retaining wall structure in Embodiment 1 of the present utility model.

[0034] In the figure:

[0035] Dike 1; Gravity retaining wall 101; Concrete floor slab 102;

[0036] Water retaining system 2; Balustrade 201; Plate groove 202; Plunger 203; Square column 2031; Reinforced body 2032; Column foot 2033;

[0037] Drainage system 3; Drain main pipe 301; Drain branch pipe 302; Gate 303; Gate slot 304. Specific implementation manners

[0038] The following further explains the structures involved in the present utility model or the technical terms used therein. These explanations are only examples to illustrate how the present utility model is implemented and shall not constitute any limitation to the present utility model.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "left" and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated positions or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, terms such as "first" and "second" are only used for descriptive purposes and shall not be construed as indicating or implying relative importance.

[0040] In the description of the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a direct connection or an indirect connection through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0041] Embodiment 1

[0042] As Figures 1 to 15 shown, the present utility model provides an urban channel dike retaining wall structure, including a dike 1, a water retaining system 2 and a drainage system 3.

[0043] As Figure 2 shown in the figure, the dike 1 is composed of a gravity retaining wall 101 and a concrete bottom slab 102. The gravity retaining wall 101 has a right trapezoidal cross-section, with the water-facing side vertical, and is arranged along both sides of the channel in full length. The top of the concrete bottom slab 102 is a horizontal plane, bearing the upper gravity retaining wall 101. The water-facing side is thickened as an anti-scour tooth ridge. The dike 1 is arranged on both sides of the channel.

[0044] As Figures 2 to 9 shown in the figure, the water retaining system 2 is composed of a railing 201, a plate groove 202 and a plunger 203.

[0045] As Figures 2 to 5 shown in the figure, the railing 201 is a medium-thick strip plate, with a length slightly greater than the width of the channel. A groove 2011 is provided at its upper part, and a protrusion 2012 is provided at its lower part. The groove 2011 can be closely attached to the protrusion 2012, and both are arranged along the length direction of the railing 201 in full length. The plate grooves 202 are symmetrically arranged on the dikes on both sides of the channel, and are slot holes opened on the water-facing side of the channel, vertically penetrating from the top through the gravity retaining wall 101 to the middle of the concrete bottom slab 102. The width of the plate groove 202 is equivalent to the thickness of the railing 201, and the two can be closely attached. When the two ends of the railing 201 are vertically placed into the plate grooves 202 on both sides of the channel, they can slide to the bottom of the plate grooves 202. The other multiple railings 201 are kept in the same direction and are assembled into a whole through the fitting of the grooves 2011 and the protrusions 2012 to block the channel. A plurality of the plate grooves 202 symmetrically arranged on both sides of the channel are arranged perpendicular to the center line of the channel at a certain distance along the flow direction of the channel. The specific distance is determined according to the length divided by the channel dredging or the space required for facility maintenance.

[0046] As Figures 6 to 7 shown in FIGS. 8-9, the plunger 203 is composed of a square column 2031, a stiffening body 2032 and a column foot 2033. The size of the square column 2031 is equivalent to that of the plate groove 202 and can be closely fitted and embedded into the plate groove 202. The square column 2031 and the column foot 2033 are in an L shape. The stiffening body 2032 is a steel bar with a bent end, passing through the square column 2031 and the column foot 2032, playing a role in strengthening toughness and facilitating insertion and extraction. Moreover, the bent end of the stiffening body 2032 also facilitates the extraction of the plunger 203 from the plate groove 202. To prevent sundries from entering the plate groove 202 and affecting the assembly of the railing 201 next time, after all the railings 201 are removed, the plunger 203 is slid into the plate groove 202 from top to bottom.

[0047] As Figures 6 to 7As shown in the figure, the drainage system 3 is composed of a main drainage pipe 301, drainage branch pipes 302, a gate 303 and a gate slot 304. The main drainage pipe 301 is arranged on one side of the channel, runs along the toe of the backwater side slope of the gravity retaining wall 101, and is fixed on the top of the concrete floor 102. The drainage branch pipes 302 are arranged on both sides of each railing 201, located on the top of the concrete floor 102, with one end communicating with the channel and the other end accessing the main drainage pipe 301.

[0048] As Figure 2 , 10 , as shown in Figure 11, a gate slot 304 and a gate 303 are provided at the front of each drainage branch pipe 302. The gate slot 304 is a relatively wide rectangular slot that generally runs horizontally through the gravity retaining wall 101. The width of the gate slot 304 is slightly larger than the diameter of the drainage branch pipe 302, and the height of the gate slot 304 is more than twice the diameter of the drainage branch pipe 302. The gate 303 is composed of a lower baffle 3031 and an upper lifting rod 3032, which are firmly connected. The baffle 3031 is a rectangular medium-thick plate that can fit into the gate slot 304, with a height slightly larger than the diameter of the drainage branch pipe 302. The lifting rod 3032 is cylindrical. A relatively narrow arc-shaped slot runs vertically through the gravity retaining wall 101 at the middle position above the gate slot 304, and the lifting rod 3032 can fit into the arc-shaped slot. The gate 303 can slide up and down along the gate slot 304, and the two can be connected by a slide rail.

[0049] Based on the above retaining wall structure, the present utility model provides a construction method. As Figures 14 to 15 shown, the specific steps are as follows:

[0050] Step 1: The urban channel dike retaining wall is constructed in sections. After the excavation of the foundation pit of the urban channel dike is completed, first construct the concrete floor 102, then fixedly connect the main drainage pipe 301 and the drainage branch pipes 302, and then erect the formwork. During the formwork erection process, reserve the gate slot 304 and the plate slot 202. The distance between the gate slot 304 and the plate slot 202 is determined according to the space required for silt cleaning or maintenance. Immediately pour the gravity retaining wall 101. After the concrete pouring and curing are completed, backfill the soil behind the dike, and trim the gate slot 304 and the plate slot 202 as required, and assemble the gate 303 into the gate slot 304. The railing 201 and the gate 303 can be directly made by pouring the formwork or cut from formed steel plates. The sizes of the symmetrically arranged plate slots 202 in different channel sections are quite the same, so the railings 201 required for the construction of each channel section can be shared, which can greatly reduce the requirement for the railings 201.

[0051] Step 2: When silt cleaning or maintenance is required in the middle of the channel section, it is in the enclosure working condition at this time. Lift the gate 303 in front of the upstream channel plate groove 202 of the channel section, then lift the gate 303 behind the downstream channel plate groove 202 of the channel section, and lower the gate 303 between the upstream and downstream channel plate grooves 202 of the channel section; afterwards, pull out the plunger 203 located in the plate groove 202 through the stiffening body 2032 bent at its upper part, and then assemble the parapets 201 at the upstream and downstream to block the upstream and downstream channels. At this time, the upstream water flows into the drainage branch pipe 302, converges into the drainage main pipe 301, and finally flows out through the drainage branch pipe 302 at the downstream and converges into the downstream of the channel; subsequently, pump out the water stored in the channel between the upstream and downstream parapets 201 to the downstream, and then construction within the section can be carried out. When the slope of the channel is relatively steep, after the upstream parapet 201 is assembled and has the condition of blocking water, the water stored in the channel between the upstream and downstream channel plate grooves 202 drains by gravity, and then the downstream parapet 201 is assembled, which can save the cost of pumping and draining water.

[0052] Step 3: After the silt cleaning or maintenance of the channel section is completed, it is in the normal water passing working condition at this time. Remove the parapets 201 at the upstream and downstream of the construction channel section to restore the water passing capacity of the channel section. Lower the gate 303 in front of the upstream channel plate groove 202 of the channel section, and then lower the gate 303 behind the downstream channel plate groove 202 of the channel section. At this time, the upstream incoming water is discharged from the channel and no longer passes through the drainage branch pipe 302 and the drainage main pipe 301. To prevent sundries from entering the plate groove 202 and affecting the assembly of the parapet 201 next time, after all the parapets 201 are removed, slide the plunger 203 into the plate groove 202 from top to bottom.

[0053] Embodiment 2

[0054] As Figures 12 to 13 shown, compared with Embodiment 1, the difference in this embodiment is that one drainage main pipe 301 is arranged on each side of the channel, running along the toe of the backwater side slope of the gravity retaining wall 101 and fixed at the top of the concrete floor 102. Drainage branch pipes 302 are provided at the upstream and downstream of the channel plate grooves 202 on both sides of the channel, one end is connected to the channel, and the other end is connected to the drainage main pipe 301 to meet the situation where the water flow in the channel is large and the requirement cannot be met by arranging the drainage main pipe 301 on one side, as well as the situation where it is not possible to bury a large-diameter drainage main pipe 301 on one side.

[0055] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An urban channel embankment retaining wall structure, characterized in that: including embankments, retaining systems and drainage systems; The levee comprises a gravity retaining wall and a concrete bottom plate, the gravity retaining wall is a right-angled trapezoidal section, the water-facing side is vertical, the top of the concrete bottom plate is a horizontal plane, bearing the gravity retaining wall, the water-facing side is thickened, and the levee is set on both sides of the channel; The water retaining system includes at least two groups of guardrails that can be moved into or out of the channel to open or close the water flow, and the enclosure space formed by the two groups of guardrails and the embankment serves as the construction area; The drainage system includes a drainage main pipe and a drainage branch pipe. The drainage main pipe is arranged along the backwater side slope foot of the gravity retaining wall and is located on the top of the concrete bottom plate. The drainage branch pipe is located on the top of the concrete bottom plate, one end of which is connected to the channel and the other end is connected to the drainage main pipe. The front part of the drainage branch pipe is provided with a gate groove and a gate that can slide up and down along the gate groove. The drainage system is opened and closed by opening and closing the gate. Drainage branch pipes are arranged on the outer sides of at least two groups of guardrails as water inlet and water outlet respectively.

2. The urban channel embankment retaining wall structure according to claim 1 is characterized by: The guardrail is a medium-thick strip with a length greater than the channel width. A groove is arranged on the upper part and a protrusion is arranged on the lower part, and the upper and lower guardrails are tightly fitted.

3. The urban channel embankment retaining wall structure according to claim 1 is characterized by: The water retaining system comprises plate grooves which are symmetrically arranged on the dikes on both sides of the channel. The guardrails can be moved in or out by inserting or pulling out the guardrails into or out of the plate grooves.

4. The urban channel embankment retaining wall structure according to claim 3 is characterized by: The plate groove vertically penetrates from the top of the gravity retaining wall to the middle of the concrete bottom plate, and the guardrail is tightly fitted with the plate groove.

5. The urban channel embankment retaining wall structure according to claim 3 is characterized by: The plate grooves are arranged in plurality along the channel flow direction at a certain distance and perpendicular to the channel center line.

6. The urban channel embankment retaining wall structure according to claim 1, characterized in that: The water retaining system comprises a plunger, which is composed of a square column, a reinforced body and a column foot. The square column can be fitted and embedded in the plate groove. The square column and the column foot are L-shaped. The reinforced body is a steel bar with bent ends, which runs through the square column and the column foot.

7. The urban channel embankment retaining wall structure according to claim 1, characterized in that: The gate groove is a rectangular groove that runs through the gravity retaining wall horizontally. The width of the gate groove is greater than the diameter of the drainage branch pipe, and the height is greater than twice the diameter of the drainage branch pipe.

8. The urban channel embankment retaining wall structure according to claim 1, characterized in that: The gate is composed of a lower baffle and an upper lifting rod. The baffle is a rectangular medium-thick plate that can be fit into the gate groove. Its height is greater than the diameter of the drainage branch pipe. The gravity retaining wall in the middle position above the gate groove vertically penetrates an arc groove, and the lifting rod is fit into the arc groove.

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