A power transmission line engineering tower foundation slope protection device

Abstract

The present application relates to a kind of transmission line engineering tower foundation slope protection device, the inside of concrete slope body is formed by transverse block and longitudinal block of longitudinal and transverse distribution several anti-flow space, soil fixation mechanism is arranged at the bottom of concrete slope body, including longitudinal and transverse interlaced soil fixation grid, several oblique frames are evenly arranged in the bottom of soil fixation grid along the direction of slope, and oblique frame inside is evenly interlaced and distributed to form oblique grid;Anti-flow mechanism is arranged at the top of concrete slope body and is located in one-to-one corresponding anti-flow space, the present application is provided with soil fixation mechanism, to facilitate the soil fixation grid evenly covered under vegetation and the top of soil layer, and oblique grid is embedded into soil layer, to realize the soil fixation operation to soil layer, improve soil layer strength, and positioning rod and limiting insert piece are beneficial to the stable limiting and fixing of oblique frame in soil layer, guarantee long-term stable soil fixation use.

Description

Technical Field

[0001] This invention relates to a slope protection device for the tower foundation of a power transmission line project, belonging to the field of slope protection technology. Background Technology

[0002] In mountainous and hilly areas, the design of power transmission tower foundations often involves high fills or deep excavations to ensure that they meet the required design standards. During the construction of power transmission and transformation projects, high fill and deep excavation sections are frequently used to ensure that the power transmission and transformation lines meet the required design standards. In order to maintain the ecology of such high fill and deep excavation slopes and to play a role in soil stabilization and preventing soil erosion, ecological concrete is generally used to protect these slopes.

[0003] Ecological concrete, also known as porous planting concrete or greening concrete, is a new type of slope protection material that combines engineering protection and ecological restoration while achieving safety protection. It is characterized by high strength, unique structure, and suitability for plant growth in a low-alkaline environment. Under suitable conditions, it can achieve integrated safety protection and ecological greening.

[0004] In existing technologies, to enhance the protection of ecological concrete slopes in power transmission and transformation projects, the basic approach is to construct a grid-like structure with reinforced concrete on the slope, then fill the inside of the grid with soil, add a mesh, and finally plant vegetation. This serves both to reinforce the slope and beautify the environment. While slope protection can be achieved by casting concrete into a grid shape, as illustrated in CN213805442U, a slope protection device for land reclamation and transformation, where the grid structure divides the slope into multiple mesh sections, each of which helps to stabilize the soil and reduce soil erosion, retaining walls, with their high structural strength, can further enhance soil stabilization and retention.

[0005] However, because the bottom of the protection needs to function as a drainage device, soil loss will occur after the bottom is drained, causing the bottom of the protection device to be suspended. Over time, this will cause the slope to collapse. To address the above problems, a slope protection device for the tower foundation of power transmission line projects is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a slope protection device for the tower foundation of power transmission line projects, so as to solve the problems mentioned in the background art.

[0007] The technical solution of the present invention is as follows:

[0008] A slope protection device for the tower foundation of a power transmission line project, comprising:

[0009] A concrete slope, wherein the inner side of the concrete slope is formed by a number of flow-proof spaces through crisscrossing transverse and longitudinal blocks, and the transverse blocks are provided with seepage holes.

[0010] The soil stabilization mechanism is set at the bottom of the concrete slope and includes a soil stabilization grid formed by crisscrossing and a number of inclined frames evenly arranged at the bottom of the soil stabilization grid along the slope direction. The inclined frames are evenly and staggered to form an inclined grid on the inner side.

[0011] The flow-blocking mechanism is set on the top of the concrete slope and located in a one-to-one flow-blocking space, including a flow-blocking grid formed by crisscrossing distribution.

[0012] Preferably, the concrete slope has internally arranged transverse and longitudinal reinforcing bars, with both ends of the transverse reinforcing bars extending to the outside of the concrete slope.

[0013] Preferably, the outer wall of the longitudinal rib is provided with a locking groove, the outer wall of the transverse rib is locked inside the locking groove, and the junction of the transverse rib and the longitudinal rib is connected by fasteners.

[0014] Preferably, the upper side of the concrete slope is provided with a horizontally set slope top, the side of the slope top is provided with transverse reinforcing bars, and the bottom of the slope top is provided with vertical reinforcing bars.

[0015] Preferably, the lower side of the concrete slope is provided with a horizontally arranged slope bottom, the side of the slope bottom is provided with transverse reinforcing bars, and the bottom of the slope bottom is provided with vertical reinforcing bars.

[0016] Preferably, the inclined frame is set perpendicular to the soil stabilization grid.

[0017] Preferably, the anti-flow mechanism is connected by a plurality of central bolts, the bottom of which is threaded with a threaded sleeve, and the side of the threaded sleeve is fixed to a transverse stop or a longitudinal stop by a connecting seat.

[0018] Preferably, multiple mounting frames are symmetrically and evenly distributed on both sides of the concrete slope, and an embedded rod is fixedly connected to the inner side of the mounting frame. One end of the embedded rod is embedded and installed on both sides of the concrete slope.

[0019] Preferably, a positioning rod is fixedly installed at the bottom of the mounting bracket, a plurality of limiting inserts are evenly distributed at the bottom of the inclined frame, a sliding rail is fixedly installed on the side of the mounting bracket, an installation groove is provided on the inner side of the sliding rail, and the inner side of the installation groove is connected to both ends of the inclined frame.

[0020] Preferably, the soil inside the flow barrier is planted with plants.

[0021] The present invention has the following beneficial effects:

[0022] By incorporating a soil stabilization mechanism installed at the bottom of a concrete slope, with a uniformly interwoven soil stabilization grid on its inner side, and mounting frames fixed to both sides of the slope using embedded rods, the mounting frames are positioned by positioning rods inserted into the soil layer. Three inclined frames are distributed at the bottom of the soil stabilization grid, with staggered inclined grids on their inner sides. Multiple limiting inserts are distributed at the bottom of each inclined grid, and the mounting frames are secured to the inclined frames via sliding rails. This facilitates soil stabilization by evenly covering the soil stabilization grid under vegetation and on top of the soil layer, while embedding the inclined grids into the soil layer. This improves soil strength, and the positioning rods and limiting inserts help to stably fix the inclined frames within the soil layer, ensuring long-term stable soil stabilization and effectively preventing the loss of bottom soil due to erosion, which could lead to the collapse of the protective device due to erosion.

[0023] By incorporating a flow-blocking mechanism evenly distributed within the spaces between the transverse and longitudinal blocks, and with a flow-blocking grid covering the soil surface on the inner side of the mechanism, the surface of the soil is planted with abundant vegetation. The flow-blocking mechanism is secured by connecting a central bolt to a threaded sleeve, with the connecting seat installed on the longitudinal blocks. This secure installation allows vegetation to emerge through the gaps in the flow-blocking grid, with roots penetrating deeply through the soil-stabilizing mesh. This combination facilitates soil stabilization and protection. Furthermore, the flow-blocking grid further prevents soil erosion, ensuring sufficient soil for vegetation growth and enhancing the protective effect of the ecological concrete. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first perspective structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the second perspective structure of the present invention;

[0026] Figure 3 This is a partial structural diagram of the present invention;

[0027] Figure 4 This is a schematic diagram of the soil stabilization mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the anti-flow mechanism of the present invention;

[0029] Figure 6 This is a schematic diagram of the reinforcing ribs of the present invention;

[0030] Figure 7 This is an enlarged structural diagram of point A in the present invention;

[0031] Figure 8 This is an enlarged structural diagram of section B of the present invention.

[0032] The reference numerals in the figure are as follows:

[0033] 1. Concrete slope; 101. Transverse stop; 102. Seepage hole; 103. Longitudinal stop; 104. Side mounting hole; 105. Slope top; 106. Slope top transverse reinforcement; 107. Slope top vertical reinforcement; 108. Slope bottom; 109. Slope bottom transverse reinforcement; 110. Slope bottom vertical reinforcement; 2. Soil stabilization mechanism; 201. Soil stabilization grid; 202. Mounting frame; 203. Embedded rod; 204. Positioning rod; 205. Inclined frame; 206. Inclined grid; 207. Limiting insert; 208. Sliding rail; 3. Flow control mechanism; 301. Flow control grid; 302. Center bolt; 303. Threaded sleeve; 304. Connecting seat; 4. Transverse reinforcement; 401. Longitudinal reinforcement; 402. Locking groove; 403. Fastener. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0035] Reference Figures 1-8As shown: The structure includes an inclined concrete slope 1, a soil stabilizing mechanism 2 installed at the bottom of the slope 1, multiple anti-flow mechanisms 3 evenly distributed at the top of the slope 1, multiple soil stabilizing grids 201 evenly and interlaced on the inner side of the soil stabilizing mechanism 2, and three inclined frames 205 installed at the bottom of the slope 1 along its inclination direction. The inclined frames 205 are perpendicular to the soil stabilizing grids 201 and the concrete slope 1, and are evenly distributed at the bottom of the soil stabilizing grids 201. Multiple inclined grids 206 are evenly and interlaced on the inner side of the inclined frames 205. By installing the soil stabilizing mechanism 2 at the bottom of the concrete slope 1, with the soil stabilizing grids 201 evenly and interlaced on the inner side of the mechanism 2, and by using embedded rods 203 to stabilize the slope on both sides... The system is equipped with an installation frame 202, and a positioning rod 204 is inserted into the soil layer at the bottom of the installation frame 202. Three inclined frames 205 are distributed at the bottom of the soil stabilization grid 201, and inclined grids 206 are staggered on the inner side. Multiple limiting inserts 207 are distributed at the bottom of each inclined grid 206. The installation frame 202 and the inclined frames 205 are locked together by a sliding rail 208. This facilitates the soil stabilization operation by evenly covering the soil stabilization grid 201 under the vegetation and on top of the soil layer, and embedding the inclined grids 206 into the soil layer. This improves the soil strength. Furthermore, the positioning rod 204 and the limiting inserts 207 help to stably limit and fix the inclined frames 205 in the soil layer, ensuring long-term stable soil stabilization.

[0036] Multiple flow-blocking grids 301 are evenly and alternately distributed on the inner side of the flow-blocking mechanism 3. Multiple central bolts 302 are connected through both sides of the flow-blocking mechanism 3. Threaded sleeves 303 are threaded to the bottom of the central bolts 302. The flow-blocking grids 301 are evenly distributed on the top of the concrete slope 1. The flow-blocking mechanism 3 is evenly distributed inside the space (flow-blocking space) between the transverse baffles 101 and the longitudinal baffles 103. Flow-blocking grids 301 are installed inside the flow-blocking mechanism 3, covering the surface of the soil layer. A large amount of vegetation is cultivated on the soil surface. The connection between the central bolts 302 and the threaded sleeves 303... The anti-flow mechanism 3 is fixed, and the connecting seat 304 is installed on the longitudinal stop block 103, thereby realizing the fixed installation of the anti-flow mechanism 3. This is beneficial for the vegetation to emerge through the gaps between the anti-flow grids 301 after planting vegetation on the soil layer, and the roots at the bottom can be deeply rooted through the soil stabilizing grid 201. This is beneficial for soil stabilization and protection through preparation and cooperation. In this process, the anti-flow grids 301 can also further prevent the surface of the soil from escaping, thereby ensuring sufficient soil to provide a better growth environment for the vegetation, and further improving the protection effect of ecological concrete.

[0037] like Figure 1 , Figure 2 and Figure 6As shown, multiple transverse reinforcing bars 4 are evenly distributed along the side of the concrete slope 1, with longitudinal reinforcing bars 401 sandwiched between them. Both ends of the longitudinal reinforcing bars 401 extend through both ends of the concrete slope 1. The transverse reinforcing bars 4 extend laterally through the inner sides of the concrete slope 1 and the transverse stop 101, while the longitudinal reinforcing bars 401 extend longitudinally through the inner sides of the concrete slope 1 and the longitudinal stop 103. This arrangement helps to strengthen the protective strength of the concrete through the transverse reinforcing bars 4 and the longitudinal reinforcing bars 401, which helps to ensure the integrity of the slope under ground vibration and water impact, thus improving the protective performance.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, multiple transverse blocks 101 are evenly distributed on the inner side of the concrete slope 1. Transverse reinforcing bars 4 penetrate the inner side of the transverse blocks 101. Multiple seepage holes 102 are evenly opened on the side of the transverse blocks 101. The transverse blocks 101 can reduce the impact force of water flow by utilizing their blocking structural design, thereby achieving a protective effect on the slope. The seepage holes 102 can discharge water flow and avoid water accumulation.

[0039] like Figure 1 , Figure 2 and Figure 4 As shown, multiple mounting frames 202 are symmetrically and evenly distributed on both sides of the concrete slope 1. An embedded rod 203 is fixedly connected to the inner side of the mounting frame 202. One end of the embedded rod 203 is embedded and installed on both sides of the concrete slope 1. The mounting frame 202 can provide the function of installing the inclined frame 205, and the embedded rod 203 can be embedded during concrete pouring to ensure the stability of the mounting frame 202.

[0040] like Figure 4 and Figure 7 As shown, a positioning rod 204 is fixedly installed at the bottom of the mounting frame 202, and multiple limiting inserts 207 are evenly distributed at the bottom of the inclined frame 205. A sliding rail 208 is fixedly installed on the side of the mounting frame 202. An installation groove is provided on the inner side of the sliding rail 208, and the inner side of the installation groove is connected to both ends of the inclined frame 205. The positioning rod 204 can be inserted into the soil layer, which further improves the stability and support strength of the mounting frame 202. At the same time, it is convenient to position and install the inclined frame 205 after installation. The limiting inserts 207 can also be inserted into the soil layer when installing the inclined frame 205 to achieve the effect of limiting and fixing, avoiding the problem of displacement caused by scouring or loosening of the soil layer, which would lead to a decrease in soil stabilization performance. The sliding rail 208 can conveniently clamp and fix the inclined frame 205, while providing a stable limiting effect and ensuring the overall stability.

[0041] like Figures 1-3 and Figure 5 As shown, a connecting seat 304 is fixedly installed on the side of the threaded sleeve 303. Multiple longitudinal blocks 103 are evenly distributed on the inner side of the concrete slope 1. The transverse blocks 101 and the longitudinal blocks 103 are staggered. The threaded sleeve 303 can be installed and fixed through the connecting seat 304, which makes it convenient to install the connecting seat 304 on the side of the longitudinal blocks 103, and facilitates the installation of the center bolt 302 on the inner side of the concrete slope 1 later.

[0042] like Figure 3 and Figure 5 As shown, the side of the connecting seat 304 is fixedly connected to the side of the longitudinal stop 103, and the threaded sleeve 303 is fixedly installed on the side of the longitudinal stop 103. The connection of the connecting seat 304 to the longitudinal stop 103 facilitates the later installation, so that the threaded sleeve 303 is installed on the longitudinal stop 103 to fix the components of the flow prevention mechanism 3, and also facilitates the later disassembly for vegetation maintenance.

[0043] like Figure 6 and Figure 8 As shown, the outer wall of the longitudinal rib 401 is evenly provided with multiple locking grooves 402. The outer wall of the transverse rib 4 is locked inside the locking groove 402. Multiple fasteners 403 are evenly sleeved on the outer side of the transverse rib 4. The fasteners 403 are sleeved on the outer side of the longitudinal rib 401. The locking groove 402 facilitates the locking and limiting of the longitudinal rib 401, providing convenience for installation. By sleeved and tied on the outer side of the transverse rib 4 and the longitudinal rib 401 with the fasteners 403 (steel wire), the effect of stably strengthening the main body is achieved.

[0044] like Figure 1 , Figure 2 and Figure 3 As shown, multiple side mounting holes 104 are provided through the side of the concrete slope 1, and a slope top 105 is installed at the top of the concrete slope 1. A horizontal reinforcing bar 106 is installed through the side of the slope top 105, and a vertical reinforcing bar 107 is installed through the bottom of the slope top 105. The side mounting holes 104 provide space for the horizontal reinforcing bars 4 to pass through, and the slope top 105 provides traction for the concrete slope 1 at the top. In conjunction with the horizontal reinforcing bar 106 and the vertical reinforcing bar 107, the strength of the slope top 105 can be effectively improved.

[0045] like Figure 1 , Figure 2 and Figure 3As shown, a slope bottom 108 is installed at the bottom of the concrete slope 1. A horizontal steel bar 109 is inserted through the side of the slope bottom 108, and a vertical steel bar 110 is inserted through the bottom of the slope bottom 108. The slope bottom 108 provides effective support at the bottom. Together with the horizontal steel bar 109 and the vertical steel bar 110, it provides effective support and improves the overall strength.

[0046] The vertical reinforcing bar 107 and the horizontal reinforcing bar 4 at the top of the slope are connected by reinforcing bars, and the horizontal reinforcing bar 109 and the horizontal reinforcing bar 4 at the bottom of the slope are connected by reinforcing bars.

[0047] In this invention, the slope protection device for the tower foundation of the transmission line project, when in use, firstly, the transverse block 101, with its blocking structural design, helps to reduce the impact force of water flow, thereby achieving a protective effect on the slope. The seepage hole 102 allows water flow to be discharged, preventing water accumulation. The side mounting hole 104 provides space for the transverse reinforcement 4 to pass through. The slope top 105 provides traction for the concrete slope 1 at the top, and together with the transverse reinforcement 106 and vertical reinforcement 107 at the slope top, the strength of the slope top 105 is effectively improved. The slope bottom 108 provides effective support at the bottom, and together with the transverse reinforcement 109 and vertical reinforcement 110 at the slope bottom, effective support is provided and the overall strength is improved. To enhance strength, the soil stabilization mechanism 2 is installed at the bottom of the concrete slope 1. A soil stabilization grid 201 is evenly interwoven on the inner side of the mechanism 2. Mounting frames 202 are fixedly installed on both sides of the concrete slope 1 via embedded rods 203. Positioning rods 204 are inserted into the soil layer at the bottom of the mounting frames 202. Three inclined frames 205 are distributed at the bottom of the soil stabilization grid 201, with inclined grids 206 interwoven on their inner sides. Multiple limiting inserts 207 are distributed at the bottom of each inclined grid 206. The mounting frames 202 and the inclined frames 205 are secured by sliding rails 208. This facilitates the even coverage of the soil stabilization grid 201 under vegetation and on top of the soil layer, while the inclined grids 206 are embedded into the soil layer, thereby achieving... The soil stabilization operation improves soil strength, and the positioning rod 204 and limiting insert 207 help to stably fix the inclined frame 205 inside the soil layer, ensuring long-term stable soil stabilization. The anti-flow mechanism 3 is evenly distributed inside the spaces between the transverse baffle 101 and the longitudinal baffle 103. An anti-flow grid 301 is installed inside the anti-flow mechanism 3, covering the soil surface. A large amount of vegetation is cultivated on the coating surface. The anti-flow mechanism 3 is fixed by connecting the central bolt 302 to the threaded sleeve 303. The connecting seat 304 is installed on the longitudinal baffle 103, thus achieving the fixed installation of the anti-flow mechanism 3. This facilitates the cultivation of vegetation on the soil layer, allowing the vegetation to pass through the gaps between the anti-flow grids 301. The roots emerge from the ground, while the roots at the bottom can be deeply embedded through the soil stabilization grid 201, which facilitates soil stabilization and protection through preparation. In this process, the surface soil can be further protected against erosion through the anti-flow grid 301, thus ensuring sufficient soil to provide a better growth environment for vegetation. This further enhances the protective effect of ecological concrete. The transverse reinforcement 4 runs horizontally through the inner side of the concrete slope 1 and the transverse retaining block 101, while the longitudinal reinforcement 401 runs vertically through the inner side of the concrete slope 1 and the longitudinal retaining block 103. This strengthens the protective strength of the concrete through the transverse reinforcement 4 and the longitudinal reinforcement 401, which helps to ensure the integrity of the slope under ground vibration and water flow impact, thus improving the protective performance.

[0048] The soil stabilizing grid 201 and the oblique grid 206 can be made of hollow tubes. The top wall of the hollow tubes has a large number of water inlet permeable holes, while the bottom wall has a smaller number of drainage permeable holes. During the rainy season, water can be quickly stored inside the hollow tubes through the water inlet permeable holes. When water is scarce, water is slowly released downwards through the drainage permeable holes, thus providing water for the plants grown in the soil within the anti-flow grid 301. The number and diameter of the water inlet permeable holes are larger than those of the drainage permeable holes, ensuring that water can be added to the hollow tubes when the water supply is sufficient.

[0049] The threaded sleeve 303 has sealing paper at both ends. When the center bolt 302 is not inserted into the threaded sleeve 303, the sealing paper isolates the inner cavity of the threaded sleeve 303 from the outside. The center bolt 302 can pierce the sealing paper and insert into the threaded sleeve 303.

[0050] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A slope protection device for the base of a transmission line engineering tower, characterized in that, include: A concrete slope (1) has several anti-flow spaces formed on its inner side by crisscrossing transverse baffles (101) and longitudinal baffles (103), and seepage holes (102) are provided on the transverse baffles (101). The soil stabilization mechanism (2) is set at the bottom of the concrete slope (1) and includes a soil stabilization grid (201) formed by crisscrossing and a number of inclined frames (205) evenly arranged at the bottom of the soil stabilization grid (201) along the slope direction. The inclined frames (205) are evenly distributed in an interlaced manner to form an inclined grid (206). The anti-flow mechanism (3) is set on the top of the concrete slope (1) and located in the corresponding anti-flow space, including the anti-flow grid (301) formed by crisscrossing distribution. Multiple mounting frames (202) are symmetrically and evenly distributed on both sides of the concrete slope (1). An embedded rod (203) is fixedly connected to the inner side of the mounting frame (202). One end of the embedded rod (203) is embedded and installed on both sides of the concrete slope (1). A positioning rod (204) is fixedly installed at the bottom of the mounting bracket (202), and multiple limiting inserts (207) are evenly distributed at the bottom of the inclined frame (205). A sliding rail (208) is fixedly installed on the side of the mounting bracket (202), and an installation groove is provided on the inner side of the sliding rail (208). The inner side of the installation groove is connected to both ends of the inclined frame (205). The soil stabilization grid (201) and the oblique grid (206) are made of hollow tubes. The top wall of the hollow tube facing upwards has water inlet holes and the bottom wall of the hollow tube facing downwards has drainage holes. The number and diameter of the water inlet holes are greater than the number and diameter of the drainage holes.

2. The slope protection device for transmission line tower foundations as described in claim 1, characterized in that: The concrete slope (1) has internally arranged transverse reinforcing bars (4) and longitudinal reinforcing bars (401), with both ends of the transverse reinforcing bars (4) extending to the outside of the concrete slope (1).

3. The slope protection device for transmission line tower foundations as described in claim 2, characterized in that: The outer wall of the longitudinal rib (401) is provided with a locking groove (402), and the outer wall of the transverse rib (4) is locked inside the locking groove (402). The junction of the transverse rib (4) and the longitudinal rib (401) is connected by fasteners (403).

4. The slope protection device for transmission line tower foundations as described in claim 1, characterized in that: The upper side of the concrete slope (1) is provided with a horizontally set slope top (105), the side of the slope top (105) is provided with a horizontal slope top steel bar (106), and the bottom of the slope top (105) is provided with a vertical slope top steel bar (107).

5. The slope protection device for transmission line tower foundations as described in claim 1, characterized in that: The concrete slope (1) has a horizontally set slope bottom (108) on its lower side, and the slope bottom (108) has a horizontal slope bottom steel bar (109) running through its side, and the slope bottom (108) has a vertical slope bottom steel bar (110) running through its bottom.

6. The slope protection device for transmission line tower foundations as described in claim 1, characterized in that: The inclined frame (205) and the soil stabilization grid (201) are set perpendicular to each other.

7. The slope protection device for transmission line tower foundations as described in claim 1, characterized in that: Multiple central bolts (302) are connected through the anti-flow mechanism (3). The bottom of the central bolt (302) is threadedly connected to a threaded sleeve (303). The side of the threaded sleeve (303) is fixed to the transverse stop (101) or the longitudinal stop (103) by a connecting seat (304).

8. The slope protection device for transmission line tower foundations as described in claim 1, characterized in that: The soil inside the flow barrier (301) is planted with plants.

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