A combined ecological revetment and its construction method

Abstract

The present invention discloses a combined ecological revetment and its construction method, which relates to the technical field of ecological revetment. A slope stabilizing mechanism is arranged on the slope bank. A planting groove is arranged on the precast block, and a planting layer is arranged in the planting groove. A water collecting cavity is arranged on one side of the planting groove, and the water collecting cavities on adjacent precast blocks are communicated. A siphon tube is arranged in the water collecting cavity, and one end of the siphon tube extends into the planting groove. An installation frame is arranged on the inner side wall of the planting groove, and a diversion tube is rotatably connected in the installation frame. A rubber plug matched with the pipe orifice of the siphon tube is arranged on the inner side of one end of the diversion tube, and a thermal expansion airbag is arranged at the other end of the diversion tube. A diversion groove is arranged at the bottom of the installation frame, and diversion tubes are uniformly arranged along the length direction at the bottom of the diversion groove. Through the arranged slope stabilizing mechanism, not only can the slope bank soil layer be reinforced, but also the revetment body can be supported to prevent the soil layer from collapsing. At the same time, through the mutual cooperation of structures such as the siphon tube and the thermal expansion airbag, automatic watering of the plants can be carried out, which helps to improve the survival rate of the plants.

Description

Technical Field

[0001] The present invention relates to the technical field of ecological revetments, and more specifically, to a combined ecological revetment and its construction method. Background Art

[0002] In the prior art, a Chinese invention patent with the publication number CN108640409B discloses a combined ecological revetment and its construction method, which uses the silt dredged from the river bottom as the nutrient source for plant growth, reflecting the concept of green environmental protection and ecological cycle. The revetment adopts a combined structural system, providing a large habitat and breeding space for aquatic organisms, and giving full play to the characteristics that the ecological bag deforms under the impact of water flow and consumes energy, and the stone cage retaining wall structure is stable, strengthening the anti-scouring ability of the revetment and being applicable to rivers with relatively high water flow velocities. However, the above technical solution still has the following defects: 1. Due to the relatively high soil humidity and soft soil quality by the river (water), after a period of use, local collapses are likely to occur on the revetment; 2. In summer, the weather is hot and the evaporation rate is high. To prevent the plants far from the water surface from withering, manual watering needs to be carried out regularly, resulting in a large labor intensity. Summary of the Invention

[0003] To overcome the defects of the prior art, the present invention provides a combined ecological revetment and its construction method. The slope reinforcement mechanism provided can not only reinforce the slope soil layer, but also support the revetment body to prevent the soil layer from collapsing. At the same time, through the mutual cooperation of structures such as siphons and thermal expansion air bags, automatic water supply to the plants can be achieved, which helps to improve the survival rate of the plants.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention provides a combined ecological revetment, including a slope, a slope reinforcement mechanism and a revetment body. The slope reinforcement mechanism is arranged on the slope, and the revetment body is arranged on the slope reinforcement mechanism. The revetment body is spliced by two or more greening units. Each greening unit includes a precast block, a planting layer, a siphon, a rubber plug, a diversion pipe, an installation frame, a thermal expansion air bag, a diversion groove and a diversion pipe. A planting groove is arranged on the precast block, and a planting layer is arranged in the planting groove. A water collecting cavity is arranged on one side of the planting groove, and the water collecting cavities on adjacent precast blocks are communicated. A siphon is arranged in the water collecting cavity, and one end of the siphon extends into the planting groove. An installation frame is arranged on the inner side wall of the planting groove, and a diversion pipe is rotatably connected in the installation frame. A rubber plug matching with the pipe orifice of the siphon is arranged on the inner side of one end of the diversion pipe, and a thermal expansion air bag is arranged at the other end of the diversion pipe. A diversion groove is arranged at the bottom of the installation frame, and diversion pipes are uniformly arranged along the length direction at the bottom of the diversion groove, and the free ends of the diversion pipes extend into the planting layer. Water outlet holes are uniformly arranged on the diversion pipes.

[0006] In a preferred technical solution of the present invention, the diversion pipe is of an L-shaped structure, and the pipe orifice size of the diversion pipe near one end of the siphon is larger than that of the siphon.

[0007] In a preferred technical solution of the present invention, two groups of male locking buttons and female locking buttons which are arranged oppositely and cooperate with each other are provided on the side surface of the precast block.

[0008] In a preferred technical solution of the present invention, a rubber damping block is further provided at the bottom of the precast block.

[0009] In a preferred technical solution of the present invention, the slope fixing mechanism includes a support frame body, a mounting seat, a support column, a plug rod and a driving part. Mounting seats are provided at the four corners of the bottom of the support frame body. The top end of the support column is hinged to the mounting seat. The bottom end of the support column is a tip. A first through hole is horizontally provided on the side surface of the support column. The plug rod is slidably connected in the first through hole. A driving part is connected to the plug rod and can drive the plug rod to move.

[0010] In a preferred technical solution of the present invention, the driving part includes a first rotating shaft, a first rotating gear, a universal joint and a second rotating shaft. A working cavity is provided inside the support column. The first rotating shaft is rotatably connected in the working cavity. The first rotating gear is fixedly provided on the first rotating shaft and meshes with the tooth groove on the plug rod. The second rotating shaft is rotatably connected to the mounting seat. The top end of the first rotating shaft extends out of the working cavity and is connected to the bottom end of the second rotating shaft through a universal joint.

[0011] In a preferred technical solution of the present invention, an adjustment jack is provided at the top of the second rotating shaft.

[0012] The present invention also provides a construction method for a combined ecological revetment, including the following steps:

[0013] Step 1: Clean the riverbank slope to ensure that the slope surface is flat and clean;

[0014] Step 2: Install the slope fixing mechanism. First, insert the tip of the support column downward into the slope bank and ensure that the top surfaces of adjacent support frame bodies are flush. Then rotate the second rotating shaft to drive the plug rod to horizontally insert into the soil layer of the slope bank, so as to firmly install the support frame body on the slope bank;

[0015] Step 3: Install the revetment body. Place the greening units on the support frame body in sequence, and make the precast blocks of adjacent two greening units fit with each other to achieve fixation;

[0016] Step 4: Plant plants in the planting layer to complete the construction operation.

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

[0018] The present invention provides a combined ecological revetment and its construction method. The slope-fixing mechanism provided can not only reinforce the slope soil layer, but also support the revetment body to prevent the soil layer from collapsing. At the same time, through the mutual cooperation of structures such as siphons and thermal expansion air bags, it can automatically supply water to plants, which helps to improve the survival rate of plants. Moreover, when the water flows down through the diversion pipe, it will also fall on the thermal expansion air bag, thereby cooling the thermal expansion air bag and causing it to contract, and then making the rubber plug re-seal the siphon pipe to achieve intermittent water supply operation and avoid excessive single watering resulting in the planting layer being too wet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic structural diagram of a combined ecological revetment provided by a specific embodiment of the present invention;

[0020] Figure 2 FIG. is a schematic structural diagram of the slope-fixing mechanism;

[0021] Figure 3 FIG. is Figure 2 a schematic structural diagram of part A in FIG.

[0022] Figure 4 FIG. is Figure 3 a sectional view taken along the direction B-B in FIG.

[0023] Figure 5 FIG. is a schematic structural diagram of the greening unit;

[0024] Figure 6 FIG. is Figure 5 a semi-sectional structural diagram of the precast block in FIG.

[0025] Figure 7 FIG. is Figure 6 a schematic structural diagram taken along the direction C-C in FIG.

[0026] In the figure:

[0027] 1, slope bank; 2, slope-fixing mechanism; 21, support frame; 22, mounting seat; 23, support column; 231, first through hole; 232, working cavity; 24, insertion rod; 25, driving part; 251, first rotating shaft; 252, first rotating gear; 253, universal joint; 254, second rotating shaft; 255, adjusting jack; 3, revetment body; 301, precast block; 302, planting groove; 303, planting layer; 304, water collecting cavity; 305, siphon pipe; 306, rubber plug; 307, diversion pipe; 308, mounting frame; 309, thermal expansion air bag; 310, diversion groove; 311, diversion pipe; 312, male locking buckle; 313, female locking buckle; 314, rubber shock absorber. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0029] Such as Figures 1-7As shown in the figure, in the embodiment, a combined ecological revetment is provided, which includes a slope bank 1, a slope fixation mechanism 2 and a revetment body 3. The slope fixation mechanism 2 is arranged on the slope bank 1, and the revetment body 3 is arranged on the slope fixation mechanism 2. The revetment body 3 is spliced by more than two greening units. The greening unit includes a precast block 301, a planting layer 303, a siphon 305, a rubber plug 306, a diversion pipe 307, a mounting frame 308, a thermal expansion airbag 309, a diversion groove 310 and a diversion pipe 311. A planting groove 302 is arranged on the precast block 301, a planting layer 303 is arranged in the planting groove 302, a water collection cavity 304 is arranged on one side of the planting groove 302, and the water collection cavities 304 on adjacent precast blocks 301 are communicated. A siphon 305 is arranged in the water collection cavity 304, one end of the siphon 305 extends into the planting groove 302, a mounting frame 308 is arranged on the inner side wall of the planting groove 302, a diversion pipe 307 is rotatably connected in the mounting frame 308, a rubber plug 306 matching with the pipe orifice of the siphon 305 is arranged on the inner side of one end of the diversion pipe 307, a thermal expansion airbag 309 is arranged at the other end of the diversion pipe 307, a diversion groove 310 is arranged at the bottom of the mounting frame 308, diversion pipes 311 are uniformly arranged along the length direction at the bottom of the diversion groove 310, and the free ends of the diversion pipes 311 extend into the planting layer 303. Water outlet holes are uniformly arranged on the diversion pipes 311. In this embodiment, the slope fixation mechanism 2 is installed on the slope of the slope bank 1. On the one hand, it can reinforce the soil layer of the slope bank 1 to prevent landslides. On the other hand, it can support the revetment body 3 to reduce the pressure on the soil layer of the slope bank 1 and avoid situations such as depressions. Among them, the precast block 301 is a rectangular block, and the precast block 301 is installed above the slope fixation mechanism 2 and does not directly contact the slope surface; the planting layer 303 is preferably organic soil, and a layer of cobblestone layer is laid above the planting layer 303 to play a role in supporting the stems of plants; the water collection cavity 304 is arranged on one side of the planting groove 302, and the water collection cavity 304 is a closed structure to reduce water evaporation. At the same time, connection holes are arranged on the front and back sides of the water collection cavity 304. During installation, it should be ensured that the connection holes on two adjacent precast blocks 301 are aligned so that the adjacent two water collection cavities 304 in the downward direction along the slope are communicated. A water storage tank is also arranged at the top of the slope bank 1 for collecting rainwater, and the connection port on the uppermost precast block 301 is connected to the bottom water outlet of the water storage tank, so as to carry out the water replenishment operation for the water collection cavity 304;The siphon 305 is used to suck out the water in the water collecting cavity 304, and then water the plants in the planting trough 302. One end of the siphon 305 located in the planting trough 302 is lower than the other end. A piston plate that can slide up and down is also arranged in the water collecting cavity 304. The bottom of the piston plate is connected to the inner bottom wall of the water collecting cavity 304 through a first spring. When water is injected above the piston plate, the increasing amount of water will gradually compress the first spring to make the piston plate move downward, so that more water can be stored in the water collecting cavity 304. On the contrary, when the siphon 305 sucks water out, the decreasing amount of water will cause the first spring to gradually elongate to make the piston plate move upward, thus ensuring that the water level in the water collecting cavity 304 is always at a relatively high position to ensure the siphon effect. The installation frame 308 is fixedly installed on the side wall of the planting trough 302 close to the water collecting cavity 304 through fastening bolts. The installation frame 308 is of a U-shaped structure and serves to support the diversion pipe 307 and the diversion groove 310. The rubber plug 306 is a conical plug, with the small head end of the conical plug facing upward, used to block the pipe orifice of the siphon 305. The diameter of the large head end of the conical plug is smaller than the inner diameter of the diversion pipe 307, so that the water in the siphon 305 can flow down through the gap between the rubber plug 306 and the diversion pipe 307. The thermal expansion airbag 309 is filled with thermal expansion gas, and a second spring is arranged in the thermal expansion airbag 309. The two ends of the second spring are respectively connected to the upper and lower ends of the thermal expansion airbag 309. When the weather is relatively hot, the gas in the thermal expansion airbag 309 will expand due to heat, and then push the diversion pipe 307 to rotate, making the rubber plug 306 separate from the siphon 305. On the contrary, when the weather is cool, the thermal expansion airbag 309 will not expand. At this time, the second spring will tighten one end of the diversion pipe 307 to make the rubber plug 306 block the pipe orifice of the siphon 305 to prevent water from flowing out. The diversion pipe 311 is of an L-shaped structure, and the longer section of the diversion pipe 311 is horizontally buried in the planting layer 303. The arranged diversion groove 310 can evenly disperse the water into several diversion pipes 311, so as to evenly supply water to the planting layer 303. In addition, when the water flows out from the bottom of the diversion pipe 307, it will flow down along the surface of the thermal expansion airbag 309, thereby cooling the thermal expansion airbag 309, making the thermal expansion airbag 309 contract and making the rubber plug 306 block the pipe orifice of the siphon 305 again, so as to realize intermittent automatic water supply to the planting layer 303 and prevent the soil in the planting layer 303 from being too wet.

[0030] Specifically, the diversion pipe 307 is of an L-shaped structure, and the pipe orifice size of the diversion pipe 307 close to the siphon 305 is larger than the pipe orifice size of the siphon 305 to prevent water from splashing out.

[0031] Specifically, two sets of male locking buttons 312 and female locking buttons 313 which are arranged oppositely and cooperate with each other are provided on the side surface of the precast block 301. In this embodiment, male locking buttons 312 are provided on the rear side surface and the left side surface of the precast block 301, and female locking buttons 313 are provided on the front side surface and the right side surface of the precast block 301. The male locking buttons 312 and the female locking buttons 313 are buckled with each other, and can connect two adjacent precast blocks 301 into one body.

[0032] Specifically, a rubber shock-absorbing block 314 is further provided at the bottom of the precast block 301. In this embodiment, the rubber shock-absorbing block 314 is located between the precast block 301 and the support frame 21, and can buffer when the precast block 301 is impacted by waves or heavy objects, etc., so as to prevent the slope surface from deforming.

[0033] Specifically, the slope-fixing mechanism 2 includes a support frame 21, a mounting seat 22, a support column 23, a plug rod 24 and a driving part 25. Mounting seats 22 are provided at the four corners of the bottom of the support frame 21. The top end of the support column 23 is hinged to the mounting seat 22. The bottom end of the support column 23 is a tip. A first through hole 231 is horizontally provided on the side surface of the support column 23. The plug rod 24 is slidably connected in the first through hole 231. A driving part 25 is connected to the plug rod 24 and can drive the plug rod 24 to move. In this embodiment, the support frame 21 is a rectangular frame, and during installation, the top surface of the support frame 21 should be parallel to the slope surface of the slope bank 1. The mounting seat 22 is of a cylindrical structure, and a hinge seat is provided at the bottom of the mounting seat 22 for hinging and fixing the support column 23, so that the support column 23 can rotate to adapt to the installation of slopes with different inclination degrees. The provided plug rod 24 can be horizontally inserted into the soil layer after the support column 23 is completely inserted into the soil layer of the slope bank 1, so as to play a role in assisting in fixing the support column 23 and improving the reinforcement effect.

[0034] Specifically, the driving part 25 includes a first rotating shaft 251, a first rotating gear 252, a universal joint 253, and a second rotating shaft 254. A working cavity 232 is provided inside the support column 23. The first rotating shaft 251 is rotatably connected inside the working cavity 232. A first rotating gear 252 is fixedly provided on the first rotating shaft 251, and the first rotating gear 252 meshes with the tooth groove on the inserting rod 24. A second rotating shaft 254 is rotatably connected to the mounting seat 22. The top end of the first rotating shaft 251 extends out of the working cavity 232 and is connected to the bottom end of the second rotating shaft 254 through the universal joint 253. In this embodiment, the central axis of the first rotating shaft 251 coincides with the central axis of the support column 23. When the first rotating shaft 251 rotates, it can drive the first rotating gear 252 to rotate synchronously, causing the inserting rod 24 to slide horizontally, so that the tip of the inserting rod 24 can extend out of the first through hole 231 and insert into the soil layer. The provided universal joint 253 enables arbitrary-angle transmission between the first rotating shaft 251 and the second rotating shaft 254. The central axis of the second rotating shaft 254 coincides with the central axis of the mounting seat 22, and the bottom end of the second rotating shaft 254 is flush with the bottom end surface of the mounting seat 22, and the top end of the second rotating shaft 254 is flush with the top end surface of the support frame 21.

[0035] Specifically, an adjustment jack 255 is provided at the top of the second rotating shaft 254. In this embodiment, the adjustment jack 255 is an internal hexagonal groove.

[0036] Working principle: When the weather is hot, the air in the thermal expansion airbag 309 expands due to heat, and then pushes the diversion pipe 307 to rotate so that the rubber plug 306 is separated from the siphon tube 305. At this time, the rainwater in the water collection cavity 304 passes through the siphon tube 305 and the diversion pipe 307 in sequence and falls into the diversion groove 310, and is diverted by the diversion pipe 311 to achieve uniform watering of the planting layer 303. At the same time, when the water flows down from the diversion pipe 307, it will also fall on the thermal expansion airbag 309, thereby cooling the thermal expansion airbag 309 and causing it to contract, and then causing the diversion pipe 307 to reverse and the rubber plug 306 to block the siphon tube 305 again, so as to achieve intermittent water replenishment operation, avoid excessive single watering and cause the planting layer 303 to be too wet, and help improve the survival rate of plants.

[0037] This embodiment also provides a construction method for a combined ecological revetment, including the following steps:

[0038] Step 1: Clean the river bank slope 1 to ensure that the slope surface is flat and clean;

[0039] Step 2: Install the slope-fixing mechanism 2. First, insert the tip of the support column 23 downward into the slope 1, and ensure that the top end surfaces of adjacent support frames 21 are flush, and ensure that the support frame 21 is parallel to the slope surface of the slope 1. Then rotate the second rotating shaft 254 to drive the inserting rod 24 to horizontally insert into the soil layer of the slope 1, so as to firmly install the support frame 21 on the slope 1;

[0040] Step 3: Install the revetment body 3, sequentially place the greening units on the support frame 21, and make the precast blocks 301 of two adjacent greening units engage with each other to achieve fixation;

[0041] Step 4: Plant plants in the planting layer 303 to complete the construction operation.

[0042] The present invention is described through preferred embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. The present invention is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application belong to the scope of protection of the present invention.

Claims

1. A combined ecological revetment, comprising a slope bank (1), a slope fixing mechanism (2) and a revetment body (3), characterized in that: There is a slope stabilizing mechanism (2) provided on the slope bank (1), and a bank protection body (3) is provided on the slope stabilizing mechanism (2). The bank protection body (3) is formed by splicing two or more greening units. The greening unit includes a precast block (301), a planting layer (303), a siphon (305), a rubber plug (306), a diversion pipe (307), a mounting frame (308), a thermally expandable airbag (309), a diversion groove (310) and a diversion pipe (311). A planting groove (302) is provided on the precast block (301), a planting layer (303) is provided in the planting groove (302), a water collecting cavity (304) is provided on one side of the planting groove (302), and the water collecting cavities (304) on adjacent precast blocks (301) are communicated. A siphon (305) is provided in the water collecting cavity (304), one end of the siphon (305) extends into the planting groove (302), a mounting frame (308) is provided on the inner side wall of the planting groove (302), a diversion pipe (307) is rotatably connected in the mounting frame (308), a rubber plug (306) matching with the pipe orifice of the siphon (305) is provided on the inner side of one end of the diversion pipe (307), a thermally expandable airbag (309) is provided at the other end of the diversion pipe (307), a diversion groove (310) is provided at the bottom of the mounting frame (308), diversion pipes (311) are uniformly arranged along the length direction at the bottom of the diversion groove (310), and the free ends of the diversion pipes (311) extend into the planting layer (303). Water outlet holes are uniformly arranged on the diversion pipes (311); the slope stabilizing mechanism (2) includes a support frame body (21), a mounting seat (22), a support column (23), a plug rod (24) and a driving part (25). Mounting seats (22) are provided at the four corners of the bottom of the support frame body (21). The top end of the support column (23) is hinged to the mounting seat (22). The bottom end of the support column (23) is a tip. A first through hole (231) is horizontally provided on the side surface of the support column (23). The plug rod (24) is slidably connected in the first through hole (231). A driving part (25) is connected to the plug rod (24) and can drive the plug rod (24) to move; the driving part (25) includes a first rotating shaft (251), a first rotating gear (252), a universal joint (253) and a second rotating shaft (254). A working cavity (232) is provided in the support column (23). The first rotating shaft (251) is rotatably connected in the working cavity (232). A first rotating gear (252) is fixedly provided on the first rotating shaft (251), and the first rotating gear (252) meshes with the tooth groove on the plug rod (24). A second rotating shaft (254) is rotatably connected to the mounting seat (22). The top end of the first rotating shaft (251) extends out of the working cavity (232) and is connected to the bottom end of the second rotating shaft (254) through the universal joint (253).

2. The modular ecological revetment according to claim 1, wherein: The diversion pipe (307) is of an L-shaped structure, and the pipe orifice size of the end of the diversion pipe (307) close to the siphon (305) is larger than the pipe orifice size of the siphon (305).

3. The combined ecological revetment according to claim 1, characterized in that: On the side of the precast block (301), there are two groups of male locking buttons (312) and female locking buttons (313) arranged oppositely and cooperating with each other.

4. The modular ecological revetment according to claim 1, characterized in that: At the bottom of the precast block (301), a rubber shock-absorbing block (314) is further provided.

5. The modular ecological revetment according to claim 1, characterized in that: At the top of the second rotating shaft (254), an adjustment jack (255) is provided.

6. A construction method of the combined ecological revetment according to any one of claims 1-5, characterized in that, It includes the following steps: Step 1: Clean the riverbank slope (1) to ensure that the slope surface is flat and clean; Step 2: Install the slope-fixing mechanism (2). First, insert the tip of the support column (23) downward into the slope bank (1) with the tip facing down, and ensure that the top surfaces of adjacent support frames (21) are flush. Then, rotate the second rotating shaft (254) to drive the insertion rod (24) to horizontally insert into the soil layer of the slope bank (1), so as to firmly install the support frame (21) on the slope bank (1); Step 3: Install the bank protection body (3). Place the greening units on the support frames (21) in sequence, and make the precast blocks (301) of adjacent two greening units engage with each other to achieve fixation; Step 4: Plant plants in the planting layer (303) to complete the construction work.

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