Buttress and construction method thereof

Abstract

The buttress comprises a bottom plate, a vertical plate and a rib plate, a plurality of drainage holes are formed in the vertical plate, a drainage pipe is arranged in each drainage hole, a three-way pipe is connected to the end, away from the rib plate, of each drainage pipe, a connecting pipe is arranged between every two adjacent three-way pipes, and water outlet pipes are arranged at the two ends of the three-way pipes on the two sides. The other end of each water outlet pipe is communicated with a water collecting tank, and a first water pump is arranged at the position, close to the water collecting tank, of the water outlet pipe and used for pumping water in the drainage pipe into the water collecting tank. The three-way pipe is provided with a cleaning mechanism used for cleaning blockage in the drainage pipe and the three-way pipe. The cleaning mechanism comprises a cleaning pipe, the cleaning pipe is communicated with one end, away from the drainage pipe, of the three-way pipe, the other end of the cleaning pipe is communicated with a water inlet pipe, the water inlet pipe is connected with the water collecting tank through a second water pump, and a pulse electromagnetic valve is arranged on the cleaning pipe. According to the technical scheme, sediment blockage is reduced, the drainage effect is improved, and the structural strength of the buttress is kept.

Description

Technical Field

[0001] The invention relates to the technical field of buttresses, and in particular to a buttress and a construction method thereof. Background Art

[0002] Buttresses are walls or other structures attached to the exterior wall to balance the thrust of soil on the exterior wall.

[0003] The reinforced concrete buttress structure is composed of components such as vertical plates, rib plates and bottom plates.

[0004] Rainfall will have an impact on buttresses. When rainwater accumulates, it will cause damage to the buttresses. Strengthening buttress drainage is one of the important measures to maintain the structural strength of the buttresses.

[0005] The existing buttress drainage is mainly to reserve more holes to allow excess water to be directly discharged. Since the holes are easily blocked by mud and sand after a long period of drainage, the drainage effect is poor. Therefore, it is necessary to design a buttress and a construction method for improving the drainage effect. Summary of the invention

[0006] One object of the present invention is to provide a buttress and a construction method thereof, which can reduce silt blockage, improve drainage effect, and maintain the structural strength of the buttress.

[0007] The present application provides a buttress and a construction method thereof using the following technical solutions:

[0008] In the first aspect, the buttress of the embodiment of the present invention comprises a bottom plate, a vertical plate and a rib plate, the vertical plate is provided with a drainage hole, a plurality of the drainage holes are arranged at intervals, a drainage pipe is arranged in each of the drainage holes, one end of the drainage pipe away from the rib plate is connected to a tee, a connecting pipe is arranged between two adjacent tee pipes, outlet pipes are arranged at both ends of the tee pipes on the two sides, the other end of each outlet pipe is connected to a water collecting tank, the water collecting tank is located on the ground, the outlet pipe extends to be connected to the water collecting tank, a water pump 1 is arranged on the outlet pipe near the water collecting tank, and the water pump 1 is used to pump water in the drainage pipe into the water collecting tank;

[0009] The three-way pipe is provided with a cleaning mechanism for cleaning blockages in the drainage pipe and the three-way pipe.

[0010] Preferably, the drain pipe is arranged obliquely, and the end of the drain pipe away from the rib plate is the lowest end.

[0011] Preferably, the cleaning mechanism includes a cleaning pipe, which is connected to one end of the three-way pipe away from the drain pipe, and the cleaning pipe is fixed to the three-way pipe through a connecting assembly. The other end of the cleaning pipe is connected to a water inlet pipe, and the water inlet pipe is connected to a water collecting tank through a second water pump. The second water pump is arranged on the cleaning pipe pipeline close to the water collecting tank, the water inlet end of the second water pump is connected to the water collecting tank, and the water outlet end of the second water pump is connected to the water inlet pipe. A pulse solenoid valve is arranged on the cleaning pipe, and the pulse solenoid valve is used to make the water flow in a jet state to increase the pressure and speed of the water flow.

[0012] Preferably, the cleaning tube is fixedly connected to a guide block at one end close to the tee pipe, and a guide hole is provided on the guide block, and the guide hole includes a first hole body, a second hole body, and a third hole body, and the first hole body and the second hole body are located on both sides of the radial direction of the third hole body, and the first hole body and the second hole body are bent, and the water inlets of the first hole body and the second hole body are located in the cleaning tube, and the water outlets of the first hole body and the second hole body are respectively aligned with the tube bodies of the tee pipe located on both sides of the radial direction of the drain pipe, and the water inlet of the third hole body is located in the cleaning tube, and the water outlet of the third hole body is aligned with the drain pipe, and the pulse solenoid valve sprays water into the tee pipe through pulses to blow out blocked impurities, thereby flushing the tee pipe and the drain pipe, and the flushing water flows into the water collecting tank through the outlet pipe.

[0013] Preferably, the angle between the water flow ejected from the water outlets of the first hole body and the second hole body and the central axis of the connecting pipe is 20°-30°.

[0014] Preferably, a first valve for controlling the opening and closing of the outlet pipe is provided at one end of the outlet pipe close to the water collecting tank, and a second valve for controlling the opening and closing of the inlet pipe is provided at one end of the inlet pipe close to the water collecting tank. When cleaning the drain pipe, the first valve and the second valve are both opened, and the water in the water collecting tank is pumped by water pump 2 and sprayed into the drain pipe and the three-way pipe through the pulse solenoid valve. The flushing water is pumped into the water collecting tank through water pump 1. When the drain pipe does not need to be cleaned, the first valve is opened and the second valve is closed, and the liquid accumulated in the drain pipe is pumped into the water collecting tank through water pump 1.

[0015] Preferably, a water filter is provided between the second water pump and the water collecting tank, and the second water pump pumps the filtered water into the cleaning pipe.

[0016] Preferably, the connecting assembly includes an arc plate, a connecting plate 1, and a connecting plate 2. The tee is provided with a receiving hole into which the guide block extends, the outer circumferential wall of the guide block fits with the inner circumferential wall of the receiving hole, the arc plate is fixedly connected to the guide block, a through hole for connecting the tee with the cleaning tube is provided in the center of the arc plate, the arc plate is tightly attached to the outer wall of the tee, the connecting plate 1 is fixedly connected to both sides of the arc plate, the connecting plate 2 is fixedly connected to the tee, the connecting plate 1 fits with the connecting plate 2 and is fixed by a bolt pair.

[0017] In a second aspect, the buttress construction method of an embodiment of the present invention comprises the following steps:

[0018] S1, pouring the base plate;

[0019] S2. Install the formwork: The formwork includes the vertical plate formwork and the rib plate formwork. After the vertical plate formwork and the rib plate formwork are assembled, the vertical plate and the rib plate are formed at the same time. The vertical plate and the rib plate are completed by two formwork castings. The first formwork is cast to 5.43m, and the second formwork is cast on the basis of the first one and cast to the top of the buttress;

[0020] S3. Install the drainage pipe: During the first formwork, make a hole in the vertical plate formwork and insert the drainage pipe, then fix the drainage pipe to the vertical plate formwork;

[0021] S4. Casting of vertical slabs and ribs:

[0022] S5. Concrete curing;

[0023] S6. Install the cleaning mechanism, connect the tee to the drain pipe, then connect the two adjacent tee pipes through the connecting pipe, and then use the outlet pipe to connect the tee pipes on both sides to the water pump 1 at the front end of the water collecting tank, and then connect the cleaning pipe to the corresponding tee through the connecting assembly, and finally connect the two ends of the water inlet pipe to the water pump 2 respectively.

[0024] Preferably, before pouring concrete, the base plate and the formwork are soaked with water to avoid absorbing moisture in the concrete and reducing the occurrence of cracks in the concrete structure.

[0025] In summary, this application includes the following beneficial technical effects:

[0026] According to the buttress and construction method thereof of the embodiments of the present invention, by adopting the above-mentioned technical scheme, the pulse solenoid valve sprays water into the three-way pipe through pulses to blow out blocked impurities, thereby flushing the three-way pipe and the drain pipe, reducing silt blockage, improving drainage effect, and maintaining the structural strength of the buttress. The water after flushing then enters the water collecting tank through the outlet pipe.

[0027] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0029] Figure 1 It is a schematic diagram of the overall structure of a buttress in an embodiment of the present application.

[0030] Figure 2 It is a structural schematic diagram used to show the exterior of the cleaning mechanism in the embodiment of the present application.

[0031] Figure 3 It is used for display Figure 2 A magnified schematic diagram of center A.

[0032] Figure 4 It is a schematic diagram of the cross-sectional structure used to illustrate the guide hole in the embodiment of the present application.

[0033] Reference numerals:

[0034] 1. Bottom plate; 2. Vertical plate; 3. Rib plate; 4. Drain pipe; 5. Tee pipe; 6. Connecting pipe; 7. Outlet pipe; 71. First valve; 8. Water collecting tank; 81. Water pump 1; 82. Water filter; 9. Cleaning mechanism; 91. Cleaning pipe; 92. Connecting assembly; 921. Arc plate; 922. Connecting plate 1; 923. Connecting plate 2; 93. Inlet pipe; 931. Second valve; 94. Water pump 2; 95. Pulse solenoid valve; 96. Guide block; 961. Guide hole; 9611. First hole body; 9612. Second hole body; 9613. Third hole body. DETAILED DESCRIPTION

[0035] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0038] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0039] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0040] In the specification and claims of the present invention, if the term "first" or "second" is involved, it may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the related objects are in an "or" relationship.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" involved should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The buttress and the construction method thereof according to the embodiment of the present invention are described in detail below with reference to the accompanying drawings.

[0044] Reference Figure 1-4 The buttress includes a bottom plate 1, a vertical plate 2 and a rib plate 3. The vertical plate 2 is provided with drainage holes, and a plurality of drainage holes are arranged at intervals. A drainage pipe 4 is arranged in each drainage hole. The drainage pipe 4 is arranged obliquely, and the end of the drainage pipe 4 away from the rib plate 3 is the lowest end, so as to improve the drainage smoothness.

[0045] One end of the drain pipe 4 facing away from the rib plate 3 is connected to a tee pipe 5, a connecting pipe 6 is arranged between two adjacent tee pipes 5, outlet pipes 7 are arranged at both ends of the tee pipes 5 on the far sides, the other end of each outlet pipe 7 is connected to a water collecting tank 8, the water collecting tank 8 is located on the ground, the outlet pipe 7 extends to be connected to the water collecting tank 8, a water pump 81 is arranged on the outlet pipe 7 near the water collecting tank 8, and the water pump 81 is used to pump water in the drain pipe 4 into the water collecting tank 8.

[0046] Each three-way pipe 5 is provided with a cleaning mechanism 9 for cleaning blockages in the drain pipe 4 and the three-way pipe 5 .

[0047] The cleaning mechanism 9 includes a cleaning pipe 91, which is connected to one end of the three-way pipe 5 away from the drain pipe 4. The cleaning pipe 91 is fixed to the three-way pipe 5 through a connecting assembly 92. The other end of the cleaning pipe 91 is connected to a water inlet pipe 93. The water inlet pipe 93 is connected to the water collecting tank 8 through a water pump 94. The water pump 94 is arranged on the cleaning pipe 91 near the water collecting tank 8. The water inlet end of the water pump 94 is connected to the water collecting tank 8, and the water outlet end of the water pump 94 is connected to the water inlet pipe 93. A pulse solenoid valve 95 is arranged on the cleaning pipe 91. The pulse solenoid valve 95 is used to make the water flow in a jet state to increase the pressure and speed of the water flow.

[0048] The cleaning pipe 91 is fixedly connected to a guide block 96 at one end close to the three-way pipe 5. The guide block 96 is provided with a guide hole 961. The guide hole 961 includes a first hole body 9611, a second hole body 9612, and a third hole body 9613. The first hole body 9611 and the second hole body 9612 are located on both sides of the radial direction of the third hole body 9613. The first hole body 9611 and the second hole body 9612 are both bent. The water inlets of the first hole body 9611 and the second hole body 9612 are located at In the cleaning pipe 91, the water outlets of the first hole body 9611 and the second hole body 9612 are respectively aligned with the tube bodies of the three-way pipe 5 located on the radial sides of the drain pipe 4, the water inlet of the third hole body 9613 is located in the cleaning pipe 91, and the water outlet of the third hole body 9613 is aligned with the drain pipe 4. The pulse solenoid valve 95 sprays water into the three-way pipe 5 through pulses to blow out blocked impurities, thereby flushing the three-way pipe 5 and the drain pipe 4, and the flushing water flows into the water collecting tank 8 through the outlet pipe 7.

[0049] The angle between the water flow ejected from the water outlet of the first hole body 9611 and the second hole body 9612 and the central axis of the connecting pipe 6 is 20°-30°, so that the water flow is inclined and rushes into the three-way pipe 5 at an angle. Compared with being parallel to the axis of the three-way pipe 5, the inclined water flow can improve the effect and range of the spraying.

[0050] The pulse solenoid valve 95 injects water into the three-way pipe 5 through pulses to blow away the blocked impurities, thereby flushing the three-way pipe 5 and the drainage pipe 4, reducing sediment blockage, improving drainage effect, and maintaining the strength of the buttress structure.

[0051] A first valve 71 for controlling the opening and closing of the outlet pipe 7 is provided at one end of the water outlet pipe 7 near the water collecting tank 8, and a second valve 931 for controlling the opening and closing of the water inlet pipe 93 is provided at one end of the water inlet pipe 93 near the water collecting tank 8. When cleaning the drain pipe 4, the first valve 71 and the second valve 931 are both opened, and the water pump 2 94 draws water from the water collecting tank 8 and sprays it into the drain pipe 4 and the three-way pipe 5 through the pulse solenoid valve 95. The flushing water flow is pumped into the water collecting tank 8 through the water pump 1 81. When the drain pipe 4 does not need to be cleaned, the first valve 71 is opened and the second valve 931 is closed, and the liquid accumulated in the drain pipe 4 is pumped into the water collecting tank 8 through the water pump 1 81.

[0052] The connecting assembly 92 includes an arc plate 921, a connecting plate 1 922, and a connecting plate 2 923. A receiving hole for the guide block 96 to extend into is provided on the three-way pipe 5, and the outer peripheral wall of the guide block 96 is in contact with the inner peripheral wall of the receiving hole. The arc plate 921 is fixedly connected to the guide block 96. A through hole for connecting the three-way pipe 5 with the cleaning pipe 91 is provided in the center of the arc plate 921. The arc plate 921 is tightly attached to the outer wall of the three-way pipe 5. The connecting plate 1 922 is fixedly connected to both sides of the arc plate 921, and the connecting plate 2 923 is fixedly connected to the three-way pipe 5. The connecting plate 1 922 and the connecting plate 2 923 are in contact with each other and fixed by a bolt pair.

[0053] A water filter 82 is provided between the water pump 2 94 and the water collecting tank 8 . The water pump 2 94 pumps the filtered water into the cleaning pipe 91 , thereby improving the cleanliness of the water flow entering the cleaning pipe 91 and avoiding clogging of the drain pipe 4 .

[0054] The buttress construction method includes the following steps:

[0055] S1, pouring base plate 1;

[0056] S2. Installing the formwork: the formwork includes a vertical plate 2 formwork and a rib plate 3 formwork. After the vertical plate 2 formwork and the rib plate 3 formwork are assembled, the vertical plate 2 and the rib plate 3 are formed at the same time. The vertical plate 2 and the rib plate 3 are completed by two formwork castings. The first formwork is cast to 5.43m, and the second formwork is cast to the top of the buttress on the basis of the first one. Through the two constructions, the strength of the concrete of each construction is improved, thereby improving the structural strength of the entire buttress. The steel bars of the vertical plate 2 and the rib plate 3 cast for the first time are higher than the cast concrete, so as to facilitate binding with the steel bars of the vertical plate 2 and the rib plate 3 cast for the second time;

[0057] S3, installing the drain pipe 4: during the first formwork, a hole is opened on the vertical plate 2 formwork and the drain pipe 4 is inserted, and then the drain pipe 4 is fixed to the vertical plate 2 formwork;

[0058] S4, pouring concrete for the vertical plate 2 and the rib plate 3. Before pouring concrete, water the bottom plate 1 and the formwork to wet them thoroughly to avoid absorbing moisture in the concrete and reduce the occurrence of cracks in the concrete structure:

[0059] S5. Concrete curing;

[0060] S6. Install the cleaning mechanism 9, connect the three-way pipe 5 to the drain pipe 4, and then connect the two adjacent three-way pipes 5 through the connecting pipe 6, and then use the outlet pipe 7 to connect the three-way pipes 5 on the far sides to the water pump 1 81 at the front end of the water collecting tank 8, and then connect the cleaning pipe 91 to the corresponding three-way pipe 5 through the connecting assembly 92, and finally connect the two ends of the water inlet pipe 93 to the water pump 2 94 respectively.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A buttress, characterized in that: It comprises a bottom plate (1), a vertical plate (2) and a rib plate (3), wherein a drainage hole is provided on the vertical plate (2), wherein a plurality of drainage holes are arranged at intervals, wherein a drainage pipe (4) is arranged in each drainage hole, wherein one end of the drainage pipe (4) away from the rib plate (3) is connected to a tee pipe (5), wherein a connecting pipe (6) is arranged between two adjacent tee pipes (5), wherein both ends of the tee pipes (5) on the two sides are provided with water outlet pipes (7), wherein the other end of each water outlet pipe (7) is connected to a water collecting tank (8), wherein the water collecting tank (8) is located on the ground, wherein the water outlet pipe (7) extends to be connected to the water collecting tank (8), wherein a water pump (81) is arranged on the water outlet pipe (7) near the water collecting tank (8), wherein the water pump (81) is used to pump water in the drainage pipe (4) into the water collecting tank (8); The three-way pipe (5) is provided with a cleaning mechanism (9) for cleaning blockages in the drainage pipe (4) and the three-way pipe (5).

2. The buttress according to claim 1, characterized in that: The drainage pipe (4) is arranged obliquely, and the end of the drainage pipe (4) away from the rib plate (3) is the lowest end.

3. The buttress according to claim 1, characterized in that: The cleaning mechanism (9) comprises a cleaning pipe (91), the cleaning pipe (91) being connected to one end of the three-way pipe (5) away from the drain pipe (4), the cleaning pipe (91) being fixed to the three-way pipe (5) via a connecting assembly (92), the other end of the cleaning pipe (91) being connected to a water inlet pipe (93), the water inlet pipe (93) being connected to a water collecting tank (8) via a second water pump (94), the second water pump (94) being arranged on the cleaning pipe (91) at a position close to the water collecting tank (8), the water inlet end of the second water pump (94) being connected to the water collecting tank (8), the water outlet end of the second water pump (94) being connected to the water inlet pipe (93), the cleaning pipe (91) being provided with a pulse electromagnetic valve (95), the pulse electromagnetic valve (95) being used to make the water flow in a jetting state, thereby increasing the pressure and speed of the water flow.

4. The buttress according to claim 3, characterized in that: The end of the cleaning pipe (91) close to the three-way pipe (5) is fixedly connected to a guide block (96), and the guide block (96) is provided with a guide hole (961), and the guide hole (961) includes a first hole body (9611), a second hole body (9612), and a third hole body (9613), the first hole body (9611) and the second hole body (9612) are located on both sides of the third hole body (9613) in a radial direction, the first hole body (9611) and the second hole body (9612) are both bent, and the water inlet of the first hole body (9611) and the second hole body (9612) is The outlet of the first hole body (9611) and the second hole body (9612) are respectively aligned with the tube body of the three-way pipe (5) located on both sides of the radial direction of the drainage pipe (4); the water inlet of the third hole body (9613) is located in the cleaning pipe (91); the water outlet of the third hole body (9613) is aligned with the drainage pipe (4); the pulse solenoid valve (95) sprays water into the three-way pipe (5) through pulses to blow away blocked impurities, thereby flushing the three-way pipe (5) and the drainage pipe (4); the flushed water then enters the water collecting tank (8) through the outlet pipe (7).

5. The buttress according to claim 4, characterized in that: The angle between the water flow ejected from the water outlets of the first hole body (9611) and the second hole body (9612) and the central axis of the connecting pipe (6) is 20°-30°.

6. The buttress according to claim 3, characterized in that: A first valve (71) for controlling the opening and closing of the water outlet pipe (7) is provided at one end of the water inlet pipe (93) close to the water collecting tank (8), and a second valve (931) for controlling the opening and closing of the water inlet pipe (93) is provided at one end of the water inlet pipe (93) close to the water collecting tank (8). When cleaning the drain pipe (4), both the first valve (71) and the second valve (931) are opened, the water pump 2 (94) draws water from the water collecting tank (8) and sprays it into the drain pipe (4) and the three-way pipe (5) through the pulse electromagnetic valve (95), and the flushed water is pumped into the water collecting tank (8) through the water pump 1 (81). When it is not necessary to clean the drain pipe (4), the first valve (71) is opened and the second valve (931) is closed, and the liquid accumulated in the drain pipe (4) is pumped into the water collecting tank (8) through the water pump 1 (81).

7. The buttress according to claim 3, characterized in that: A water filter (82) is provided between the second water pump (94) and the water collecting tank (8), and the second water pump (94) pumps the filtered water into the cleaning pipe (91).

8. The buttress according to claim 4, characterized in that: The connecting assembly (92) comprises an arc plate (921), a connecting plate 1 (922), and a connecting plate 2 (923); a receiving hole for the guide block (96) to extend into is provided on the three-way pipe (5); the outer peripheral wall of the guide block (96) is in contact with the inner peripheral wall of the receiving hole; the arc plate (921) is fixedly connected to the guide block (96); a through hole for the three-way pipe (5) to communicate with the cleaning pipe (91) is provided at the center of the arc plate (921); the arc plate (921) is in close contact with the outer wall of the three-way pipe (5); the connecting plate 1 (922) is fixedly connected to both sides of the arc plate (921); the connecting plate 2 (923) is fixedly connected to the three-way pipe (5); the connecting plate 1 (922) and the connecting plate 2 (923) are in contact with each other and fixed by a bolt pair.

9. A buttress construction method for constructing the buttress according to any one of claims 1 to 8, comprising the following steps: S1, pouring the base plate (1); S2. Installing the formwork: the formwork includes a vertical plate (2) formwork and a rib plate (3) formwork. After the vertical plate (2) formwork and the rib plate (3) formwork are assembled, the vertical plate (2) and the rib plate (3) are formed at the same time. The vertical plate (2) and the rib plate (3) are cast by two times of formwork. The first time the formwork is cast to 5.43m, and the second time the formwork is cast on the basis of the first time and cast to the top of the buttress. S3, installing the drainage pipe (4): during the first formwork, a hole is opened on the vertical plate (2) mold and the drainage pipe (4) is inserted, and then the drainage pipe (4) is fixed to the vertical plate (2) mold; S4. Concrete pouring of the vertical slab (2) and the rib slab (3): S5. Concrete curing; S6, installing the cleaning mechanism (9), connecting the three-way pipe (5) to the drainage pipe (4), then connecting two adjacent three-way pipes (5) through the connecting pipe (6), and then connecting the two-way pipes (5) on the far side to the water pump 1 (81) at the front end of the water collecting tank (8) through the outlet pipe (7), and then connecting the cleaning pipe (91) to the corresponding three-way pipe (5) through the connecting assembly (92), and finally connecting the two ends of the water inlet pipe (93) to the water pump 2 (94) respectively.

10. The buttress construction method according to claim 9, characterized in that: Before pouring concrete, the base plate (1) and the formwork are watered to make them wet, so as to avoid absorbing moisture in the concrete and reduce the occurrence of cracks in the concrete structure.

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