Drainage structure of cantilever retaining wall

Abstract

The utility model relates to the technical field of retaining walls, in particular to a drainage structure of a cantilever retaining wall, which comprises a retaining wall body, a pre-buried base and a water drainage and storage plate, the bottom of the retaining wall body is connected with the pre-buried base, and the water drainage and storage plate is mounted on one side of the retaining wall body; the drainage structure has the beneficial effects that when the drainage structure of the cantilever retaining wall is used, the first water outlet is closed through the corresponding valve, the water inlet and the second water outlet are opened through the corresponding valve to drain and store water, and when the external water level is too high, the second water outlet is closed through the corresponding valve, and a pipe is connected at the first water outlet; the water outlet position at the first water outlet is higher than the water flow position, the valves at the water inlet and the first water outlet are opened to drain water, the pebble water filtering layer filters impurities during water drainage, the impurities are filtered again through the filter screen at the water inlet, and then the corresponding water outlet is selected to drain water according to requirements. The anti-blocking effect is good, and meanwhile flexible drainage can be conducted according to drainage requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of retaining walls, in particular to a cantilever retaining wall drainage structure. Background Art

[0002] A retaining wall refers to a structure that supports roadbed fill or hillside soil and prevents the fill or soil from deforming and becoming unstable. There are many types of retaining walls, such as shoulder retaining walls, embankment retaining walls, hillside retaining walls, submerged retaining walls, etc. Their uses are related to their locations. Multiple layers of drainage holes are set inside the retaining wall to drain the groundwater behind the retaining wall to the outside of the retaining wall, preventing groundwater from seeping into the foundation and causing subsidence of the retaining wall foundation or increasing the side pressure of the retaining wall, thereby increasing the safety of the retaining wall.

[0003] In the prior art, a plurality of drainage holes are opened inside the retaining wall, and in order to prevent the drainage holes from being blocked by silt and other impurities during the drainage process, a filter layer is provided on the water inlet side of the drainage holes and a filter bag is installed.

[0004] However, for an integral filter layer, seepage water tends to flow vertically in the filter layer, causing a large amount of seepage water to flow to the bottom of the retaining wall. The drainage holes above then lose their function, resulting in low overall drainage efficiency. In addition, the filter bag is small in size, difficult to install, and has a slow construction speed. After long-term use, the outer geotextile of the filter bag will deform, shift, and be damaged, resulting in poor filtration effect, affecting the drainage and water storage work of the retaining wall structure. Utility Model Content

[0005] The utility model aims to provide a cantilever retaining wall drainage structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a cantilever retaining wall drainage structure, including a retaining wall body, a pre-buried base and a drainage and storage plate,

[0007] The bottom of the retaining wall body is connected with a pre-buried base, and one side of the retaining wall body is installed with a water drainage and storage plate.

[0008] Preferably, a drainage mechanism is provided at the bottom of the drainage and storage board, and the drainage mechanism includes a support frame connected to the retaining wall body and the drainage and storage board, and the outer side of the support frame is wrapped with non-woven geotextile. The drainage and storage board is a drainage board, and the rows of water storage boards are arranged vertically on one side of the retaining wall.

[0009] Preferably, a pebble filter layer is filled between the support frame and the retaining wall body, three-way drainage pipes are equidistantly installed inside the retaining wall body, and the three-way drainage pipe is provided with a water inlet, a first water outlet and a second water outlet.

[0010] Preferably, a filter screen is installed inside the water inlet, valves are installed at the water inlet, the first water outlet and the second water outlet, and the pebble filter layer is close to the water inlet.

[0011] Preferably, a drive motor and a control box are installed inside the retaining wall body, the top of the drive motor is rotationally connected to the bidirectional adjustment screw through a coupling and a transmission assembly, and the outer side of the bidirectional adjustment screw is rotationally connected to the retaining wall body.

[0012] Preferably, the upper end of the bidirectional adjustment screw is threadedly connected to the threaded groove inside the extension plate, and the two sides of the extension plate are slidably connected to the sliding grooves opened inside the retaining wall body through sliding blocks, and the bottom of the retaining wall body is provided with plug-in foot posts.

[0013] Preferably, the inside of the plug-in foot column is threadedly connected to the lower end of the bidirectional adjustment screw through a threaded hole, a guide groove is provided at the bottom of the retaining wall body, and the outside of the plug-in foot column is slidably connected to the guide groove through a guide block.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: when the cantilever retaining wall drainage structure is in use, the first water outlet on the upper side of the three-way drainage pipe is closed by the corresponding valve, and the water inlet and the second water outlet of the three-way drainage pipe are opened by the corresponding valve, and the retaining wall body is drained and stored water only through the second water outlet on the lower side of the three-way drainage pipe. When the external water level is too high, the second water outlet on the lower side of the three-way drainage pipe is closed by the corresponding valve, and the pipe is connected at the first water outlet so that the water outlet position at the first water outlet is higher than the water flow position. The valves at the water inlet and the first water outlet of the three-way drainage pipe are opened, and the water stored in the retaining wall body is discharged through the first water outlet. When draining water, impurities are filtered through the pebble filter layer, and are filtered again through the filter net at the water inlet, and then the corresponding water outlet is selected according to demand for drainage. While having good anti-blocking effect, flexible drainage can be carried out according to drainage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the side view structure of the retaining wall body of the utility model;

[0016] Figure 2 This is a side view of the structure of the three-way drainage pipe of the utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the retaining wall body of the utility model;

[0018] Figure 4 It is a schematic diagram of the top view of the structure of the plug-in foot column of the utility model.

[0019] In the figure: 1. retaining wall body; 101. embedded base; 2. drainage and storage board; 3. drainage mechanism; 301. support frame; 302. non-woven geotextile; 303. pebble filter layer; 304. three-way drainage pipe; 304a. water inlet; 304b. first water outlet; 304c. second water outlet; 305. filter screen; 306. valve; 4. drive motor; 401. transmission assembly; 402. two-way adjustment screw; 5. extension plate; 501. sliding block; 502. sliding groove; 6. plug-in foot column; 601. guide block; 602. guide groove; 7. control box. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figures 1 to 3 The utility model provides a technical solution: a cantilever retaining wall drainage structure, including a retaining wall body 1, a pre-buried base 101 and a drainage and storage plate 2,

[0023] An embedded base 101 is connected to the bottom of the retaining wall body 1, a drainage and storage board 2 is installed on one side of the retaining wall body 1, a drainage mechanism 3 is arranged at the bottom of the drainage and storage board 2, and the drainage mechanism 3 includes a support frame 301 connected to the retaining wall body 1 and the drainage and storage board 2, the outer side of the support frame 301 is wrapped with a non-woven geotextile 302, the drainage and storage board 2 is a PVC drainage board, and the drainage and storage board 2 is arranged vertically on one side of the retaining wall.

[0024] A pebble filter layer 303 is filled between the support frame 301 and the retaining wall body 1, and three-way drainage pipes 304 are installed equidistantly inside the retaining wall body 1. The three-way drainage pipe 304 is provided with a water inlet 304a, a first water outlet 304b and a second water outlet 304c. A filter net 305 is installed inside the water inlet 304a, and valves 306 are installed at the water inlet 304a, the first water outlet 304b and the second water outlet 304c. The pebble filter layer 303 is close to the water inlet 304a.

[0025] In specific implementation, according to Figures 1 to 3In order to facilitate the drainage and water storage work of the retaining wall body 1, during construction, the embedded base 101 is first embedded and connected to the ground, the three-way drainage pipe 304 is set on the inner side of the retaining wall body 1, and the filter net 305 is installed at the water inlet 304a of the retaining wall body 1. A drainage and storage board 2 is set along the side where the retaining wall body 1 is connected to the water inlet 304a, and a pebble water filter layer 303 is filled on the inner side of the support frame 301. The bottom side of the drainage and storage board 2 is fixed on the inner side of the pebble water filter layer 303, and the outer side of the support frame 301 is wrapped with a non-woven geotextile 302, and finally the soil is backfilled;

[0026] When in use, the first water outlet 304b on the upper side of the three-way drainage pipe 304 is closed through the corresponding valve 306, and the water inlet 304a and the second water outlet 304c of the three-way drainage pipe 304 are opened through the corresponding valve 306, and the retaining wall body 1 is drained and stored only through the second water outlet 304c on the lower side of the three-way drainage pipe 304, wherein the support frame 301 is used to provide space for filling the pebble water filter layer 303, and the non-woven geotextile 302 is used to wrap the pebble water filter layer 303 and shield the soil;

[0027] When heavy rain or other situations cause the external water level to be too high, the second water outlet 304c on the lower side of the three-way drainage pipe 304 is closed through the corresponding valve 306, and the first water outlet 304b is connected to make the water outlet position at the first water outlet 304b higher than the water flow position, and the valves 306 at the water inlet 304a and the first water outlet 304b of the three-way drainage pipe 304 are opened to discharge the water stored in the retaining wall body 1 through the first water outlet 304b. The cantilever retaining wall drainage structure filters impurities through the pebble filter layer 303 during drainage, and filters again through the filter net 305 at the water inlet 304a, and then selects the corresponding water outlet for drainage according to demand. It has good anti-blocking effect and can flexibly drain water according to drainage needs.

[0028] Embodiment 2

[0029] See also Figure 3 and Figure 4 On the basis of the first embodiment, a driving motor 4 and a control box 7 are installed inside the retaining wall body 1. The top of the driving motor 4 is rotatably connected to the two-way adjusting screw 402 through a coupling and a transmission assembly 401. The outer side of the two-way adjusting screw 402 is rotatably connected to the retaining wall body 1. The upper end of the two-way adjusting screw 402 is threadedly connected to the threaded groove inside the extension plate 5. The two sides of the extension plate 5 are slidably connected to the sliding groove 502 opened in the retaining wall body 1 through sliding blocks 501. A plug-in foot column 6 is provided at the bottom of the retaining wall body 1. The plug-in foot column 6 is threadedly connected to the lower end of the two-way adjusting screw 402 through a threaded hole. A guide groove 602 is provided at the bottom of the retaining wall body 1. The outer side of the plug-in foot column 6 is slidably connected to the guide groove 602 through a guide block 601.

[0030] In specific implementation, according to Figure 3 and Figure 4 When the water flow is too large, it will bring greater pressure to the retaining wall body 1. At this time, the control box 7 is used to control the start of the drive motor 4. The coupling on the top of the drive motor 4 drives the two-way adjustment screw 402 to rotate through the transmission assembly 401 composed of a transmission roller and a transmission belt. When the two-way adjustment screw 402 rotates, the two sides respectively interact with the threaded groove inside the extension plate 5 and the threaded hole inside the plug-in foot column 6, pushing the extension plate 5 and the sliding blocks 501 on both sides to slide upward along the sliding groove 502, extending the retaining wall body 1 and increasing the shielding area of ​​the retaining wall body 1. The plug-in foot column 6 and the guide blocks 601 on both sides slide downward along the guide groove 602 to plug with the soil at the bottom, thereby improving the shielding strength of the retaining wall body 1. The cantilever retaining wall drainage structure is provided with an extension plate 5 that extends upward to increase the shielding area and a plug-in foot column 6 that plugs downward to increase the shielding strength, so that the retaining wall body 1 is more secure to use.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cantilever retaining wall drainage structure, comprising a retaining wall body (1), a pre-buried base (101) and a drainage and storage plate (2), characterized in that: The bottom of the retaining wall body (1) is connected to a pre-buried base (101); a drainage and storage board (2) is installed on one side of the retaining wall body (1); a drainage mechanism (3) is arranged at the bottom of the drainage and storage board (2); the drainage mechanism (3) comprises a support frame (301) connected to the retaining wall body (1) and the drainage and storage board (2); the outer side of the support frame (301) is wrapped with a non-woven geotextile (302); the drainage and storage board (2) is a PVC drainage board, and the drainage and storage board (2) is arranged vertically on one side of the retaining wall; the support frame (301) is connected to the retaining wall body (1) is filled with a pebble filter layer (303), three-way drainage pipes (304) are equidistantly installed inside the retaining wall body (1), the three-way drainage pipe (304) is provided with a water inlet (304a), a first water outlet (304b) and a second water outlet (304c), a filter net (305) is installed inside the water inlet (304a), valves (306) are installed at the water inlet (304a), the first water outlet (304b) and the second water outlet (304c), and the pebble filter layer (303) is close to the water inlet (304a).

2. The cantilever retaining wall drainage structure according to claim 1, characterized in that: A drive motor (4) and a control box (7) are installed inside the retaining wall body (1); the top of the drive motor (4) is rotationally connected to a bidirectional adjustment screw (402) via a coupling and a transmission assembly (401); and the outer side of the bidirectional adjustment screw (402) is rotationally connected to the retaining wall body (1).

3. The cantilever retaining wall drainage structure according to claim 2, characterized in that: The upper end of the bidirectional adjustment screw (402) is threadedly connected to the threaded groove inside the extension plate (5), and the two sides of the extension plate (5) are slidably connected to the sliding grooves (502) provided inside the retaining wall body (1) through sliding blocks (501), and the bottom of the retaining wall body (1) is provided with plug-in foot posts (6).

4. The cantilever retaining wall drainage structure according to claim 3, characterized in that: The inside of the plug-in foot column (6) is threadedly connected to the lower end of the bidirectional adjustment screw (402) through a threaded hole, a guide groove (602) is provided at the bottom of the retaining wall body (1), and the outside of the plug-in foot column (6) is slidably connected to the guide groove (602) through a guide block (601).

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