Retaining wall drainage device

Abstract

The utility model belongs to the technical field of retaining walls, and particularly relates to a retaining wall drainage device, which comprises a wall body, a plurality of groups of inverted filter components and a connecting pipe, each inverted filter component comprises a box body, a filter unit and a water outlet unit, the box body is used for replacing geotechnical cloth to fill the filter unit, and the filter unit can be prevented from deforming during earthwork backfilling and compaction. The inserting rods at the bottom of the box body can further prevent the box body from shifting during earthwork backfilling, the multiple water outlet units arranged on the same layer communicate with one another through the connecting pipes, the situation that part of the water drainage pipes are maliciously blocked, and consequently the water drainage effect is affected is avoided, and the practicability is improved; the filtering unit comprises the permeable cotton bales, the pebbles and the sand grains, the sizes of the pebbles are different, the pebbles and the sand grains can be compactly filled in the box body, the supporting strength of the filtering unit is improved while the filtering effect is guaranteed, and deformation of the box body is avoided.

Description

Technical Field

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

[0002] In engineering construction, some fill slopes are long and high. In order to ensure the stability of the slope surface of such slopes, make the slopes anti-seepage, impact-resistant, and prevent soil erosion, retaining walls are often built on the slopes. In order to ensure the safety and stability of the retaining walls, several drainage holes are opened on the retaining walls when the retaining walls are built. Drain pipes are installed in the drainage holes. The drainage holes can drain the accumulated water in the earth behind the retaining wall in time, ensure the stability of the earth, and prevent the earth from being soaked in water for a long time and collapsing.

[0003] At present, in order to prevent the drainage holes from being blocked, it is often necessary to set up a filter layer at the drainage holes. The traditional filter layer uses pebbles and gravel wrapped with geotextiles. Pebbles and gravel are used to filter soil and sand, and prevent soil and stones in the earthwork from entering the drainage holes. On the one hand, it avoids the blockage of the drainage holes, and on the other hand, it effectively reduces soil and water loss.

[0004] However, in actual applications, the filter layer composed of pebbles wrapped in geotextiles is prone to deformation and displacement when the earth is backfilled and compacted, which reduces the filtering effect and easily leads to blockage of the drainage holes in the later stage. It is also easy to cause depressions in local parts of the earth and water accumulation. In addition, the existing drainage pipes are usually set up independently. If part or a single drainage pipe is maliciously blocked or accidentally blocked by other small animals, the blocked drainage holes will not meet the drainage requirements of the earth.

[0005] In view of this, in order to improve the above technical problems, the present invention provides a retaining wall drainage device. Utility Model Content

[0006] The technical problems to be solved by the present invention are as follows: In actual applications, the filter layer composed of pebbles wrapped in geotextiles is prone to deformation and displacement when backfilling and compacting the earth, which reduces the filtering effect and easily leads to blockage of the drainage holes in the later stage. It is also easy to cause depressions in local parts of the earth and water accumulation. In addition, the existing drainage pipes are usually set independently. If part or a single drainage pipe is maliciously blocked or accidentally blocked by other small animals, the blocked drainage holes will not meet the drainage requirements of the earth.

[0007] The utility model provides a retaining wall drainage device, including a wall body, with a plurality of drainage holes opened on the wall body, and also including: a multi-layer filtering mechanism is arranged on the side of the wall body close to the earthwork, the multi-layer filtering mechanisms are evenly arranged along the height direction of the wall, each layer of the filtering mechanism includes a plurality of groups of anti-filter components, and a connecting pipe is provided between the multiple groups of anti-filter components on each layer, the connecting pipe is located in the wall body, each group of the anti-filter components corresponds to a drainage hole, each group of the anti-filter components includes a box body, a filtering unit and a water outlet unit, the filtering unit is located in the box body, one end of the water outlet unit is located in the box body, and the other end is located in the drainage hole, and the multiple water outlet units located on the same layer are connected through the connecting pipe.

[0008] Preferably, the box body includes a main box and a cover body, the bottom of the cover body is embedded in the main box, the main box and the cover body are both provided with water filtering holes, the bottom of the main box is fixedly connected to a plug rod, and the end of the plug rod away from the main box is a conical structure.

[0009] Preferably, the filter unit includes a permeable cotton bag, which is filled with pebbles and sand. The permeable cotton bag is located in the main box. The pebbles are of different sizes, and the pebbles and sand are evenly mixed in the permeable cotton bag.

[0010] Preferably, the water outlet unit includes a water outlet pipe, one end of the water outlet pipe passes through the permeable cotton bag and extends into the permeable cotton bag, a fixing ring is sleeved on the end of the water outlet pipe located in the permeable cotton bag, the fixing ring is fixedly connected to the water outlet pipe, the other end of the water outlet pipe passes through the main box and extends into the drain hole, a water stop ring is provided in the drain hole, the water stop ring is sleeved on the water outlet pipe, and the water stop ring is fixedly connected to the water outlet pipe.

[0011] Preferably, the water outlet pipe includes a sliding pipe and a fixed pipe, one end of the sliding pipe is located in the permeable cotton bag and is fixedly connected to the permeable cotton bag, the fixed pipe is sleeved on the outside of the sliding pipe, one end of the fixed pipe passes through the main box, and the other end is located in the drain hole, one end face of the fixed pipe close to the main box is flush with the inner wall of the main box, the fixed pipe is fixedly connected to the main box, a slip ring is sleeved on the sliding pipe, the slip ring is fixedly connected to the sliding pipe, an annular groove is opened on the inner wall of the fixed pipe, and the slip ring is adapted to the annular groove.

[0012] Preferably, the end of the sliding tube is fixedly connected with a barrier net, and the barrier net is located at the end of the sliding tube located in the water-permeable cotton bag.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model provides a retaining wall drainage device, which uses a box body to replace the geotextile in the prior art, so as to avoid deformation of the filter unit during backfilling and compaction of earth, thereby ensuring the drainage effect and avoiding local depression of the earth. At the same time, the box body includes an insertion rod at the bottom, which further avoids the displacement of the box body during backfilling of earth, ensuring the stability of the box body. At the same time, by arranging multiple water outlet units on the same layer to be connected to each other through a connecting pipe, it is avoided that part or a single drainage pipe on the same layer is maliciously blocked, thereby reducing the drainage effect of the drainage hole, improving the practicality of the device. By arranging a sliding connection between a sliding pipe and a fixed pipe, the sliding pipe can move in the fixed pipe when subjected to thrust, providing a moving space for the sliding pipe, avoiding the sliding pipe from being broken by excessive force, and improving the service life of the water outlet pipe. By arranging a filter unit including a permeable cotton bag, pebbles and sand, the pebbles are of different sizes, and the pebbles and sand are evenly mixed in the permeable cotton, the pebbles and sand can be filled tightly in the box body, avoiding filling gaps, ensuring the filtering effect while improving the support strength of the filter unit and avoiding deformation of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0017] Figure 2 This is a side structural diagram of the present utility model;

[0018] Figure 3 This is a schematic diagram of the top view of the structure of the utility model;

[0019] Figure 4 This is a structural diagram of the connecting pipe of the utility model;

[0020] Figure 5 This is a schematic diagram of the side sectional structure of the box body of the present invention;

[0021] Figure 6 For the utility model Figure 5 Middle A;

[0022] Figure 7 This is an exploded view of the box and water outlet unit of the utility model;

[0023] In the figure: 1. Wall; 2. Drain hole; 3. Filter mechanism; 4. Filter assembly; 5. Connecting pipe; 6. Box; 61. Main box; 62. Cover; 63. Drain hole; 64. Rod; 7. Filter unit; 71. Permeable cotton bag; 72. Pebbles; 8. Water outlet unit; 81. Water outlet pipe; 811. Sliding pipe; 812. Fixed pipe; 82. Fixed ring; 83. Water stop ring; 9. Sliding ring; 10. Annular chute; 11. Barrier net. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1 to 5 As shown, the utility model provides a retaining wall drainage device, including a wall 1, a plurality of drainage holes 2 are opened on the wall 1, and further comprising: a multi-layer filtering mechanism 3 is arranged on the side of the wall 1 close to the earthwork, the multi-layer filtering mechanism 3 is evenly arranged along the height direction of the wall 1, and the number of layers is adjusted according to the actual height of the wall 1. Each layer of the filtering mechanism 3 is wrapped by soil, and each layer of the filtering mechanism 3 forms a filtering layer. When the filtering mechanism 3 is placed, the soil layer and the filtering layer are spaced apart. Each layer of the filtering mechanism 3 includes multiple groups of anti-filter components 4, generally three groups of anti-filter components 4 are a section, and each layer requires several sections of anti-filter components 4. According to the actual length of the wall 1, a connecting pipe 5 is provided between the multiple groups of filter components 4 on each layer. The connecting pipe 5 is located in the wall 1. Each group of filter components 4 corresponds to a drain hole 2. Each group of filter components 4 includes a box body 6, a filter unit 7 and a water outlet unit 8. The filter unit 7 is located in the box body 6. One end of the water outlet unit 8 is located in the box body 6, and the other end is located in the drain hole 2. Multiple water outlet units 8 on the same layer are connected through the connecting pipe 5. The box body 6 is used to place the filter unit 7 to prevent the filter unit 7 from offset and deformation during backfilling. The water outlet unit 8 is used to discharge accumulated water in the earth.

[0026] During drainage, the accumulated water in the earthwork enters the box body 6. After the accumulated water is filtered by the filter unit 7, the soil and sand are blocked by the filter unit 7 and cannot enter the water outlet unit 8. The filtered accumulated water is discharged through the water outlet unit 8 and the drainage hole 2, ensuring the drainage effect while avoiding soil loss.

[0027] like Figure 4As shown, the three anti-filtration components at the bottom layer include outlet pipe 81a, outlet pipe 81b and outlet pipe 81c respectively. If the outlet pipe 81a is blocked, the accumulated water entering the outlet pipe 81a from the earth will flow into the outlet pipe 81b through the connecting pipe 5, and then be discharged through the drainage hole 2 connected to the outlet pipe 81b, so that the drainage device can continue to work normally, ensure the drainage effect, and improve the practicality of the device.

[0028] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 As shown, the box body 6 includes a main box 61 and a cover body 62. The bottom of the cover body 62 is embedded in the main box 61, that is, the cross-section of the cover body 62 is T-shaped, which ensures the sealing stability of the cover body 62. Water filter holes 63 are provided on the main box 61 and the cover body 62. The box body 6 can be made of plastic material or cast with concrete to improve the structural strength of the box body 6 and avoid deformation of the filter unit 7 during backfilling and compaction. A rod 64 is fixedly connected to the bottom of the main box 61. When the main box 61 is placed, the rod 64 is inserted into the soil layer to improve the stability between the box body 6 and the soil layer below, and avoid the box body 6 from shifting during backfilling. By setting the end of the rod 64 away from the main box 61 to a conical structure, the contact area between the end of the rod 64 and the soil layer can be increased, the pressure is increased, and the rod 64 can be more easily inserted into the soil layer.

[0029] like Figure 5 As shown, the filter unit 7 includes a permeable cotton bag 71, which is located in the main box 61. Pebbles 72 and sand are wrapped in the permeable cotton bag 71. In order to avoid filling gaps when the pebbles 72 and sand are filled in the box body 6, a gap is created between the surface of the permeable cotton bag 71 and the inner wall of the box body 6, so that more soil enters the box body 6. Therefore, the pebbles 72 are set to different sizes, and the pebbles 72 and sand are evenly mixed in the permeable cotton. The gaps can be filled with pebbles 72 and sand with smaller diameters, so that the permeable cotton bag 71 contacts the inner wall of the box body 6, thereby improving the filling compactness, ensuring the filtering effect, and avoiding more soil from entering the box body 6. At the same time, the pebbles 72 and sand are filled tightly, which can improve the supporting strength of the filter unit 7 composed of the permeable cotton bag 71, pebbles 72 and sand, and further avoid deformation of the box body 6.

[0030] like Figures 2 to 7As shown, the water outlet unit 8 includes a water outlet pipe 81, one end of the water outlet pipe 81 passes through the permeable cotton bag 71 and extends into the permeable cotton bag 71, a fixing ring 82 is sleeved on one end of the water outlet pipe 81 located in the permeable cotton bag 71, and the fixing ring 82 is fixedly connected to the water outlet pipe 81 to improve the stability of the water outlet pipe 81, and the other end of the water outlet pipe 81 passes through the main box 61 and extends into the drain hole 2, and a water stop ring 83 is provided in the drain hole 2 to prevent water leakage, and the water stop ring 83 is sleeved on the water outlet pipe 81, and the water stop ring 83 is fixedly connected to the water outlet pipe 81.

[0031] The accumulated water in the earthwork is filtered by the filter assembly, enters the outlet pipe 81, and is then discharged through the drain hole 2.

[0032] like Figures 5 to 7 As shown, since the hardness of the pebbles 72 is high when filling with sand, the end of the water outlet pipe 81 is easily damaged during filling, the water outlet pipe 81 is provided to include a sliding pipe 811 and a fixed pipe 812. One end of the sliding pipe 811 is located in the permeable cotton bag 71 and is fixedly connected to the permeable cotton bag 71. The fixed pipe 812 is sleeved on the outside of the sliding pipe 811. One end of the fixed pipe 812 passes through the main box 61 and the other end is located in the drain hole 2. The end surface of the fixed pipe 812 close to the main box 61 is flush with the inner wall of the main box 61. The fixed pipe 812 is fixedly connected to the main box 61. The tubes 812 are fixedly connected with a connecting tube 5, and a slip ring 9 is provided on the sliding tube 811, and the slip ring 9 is fixedly connected to the sliding tube 811. An annular slide groove 10 is provided on the inner wall of the fixed tube 812, and the slip ring 9 is adapted to the annular slide groove 10. When filling pebbles 72 and sand, when one end of the sliding tube 811 located in the permeable cotton bag 71 is subjected to a large extrusion pressure, the sliding tube 811 can slide toward the side of the fixed tube 812 through the slip ring 9 and the annular slide groove 10, thereby providing a moving space for the sliding tube 811, avoiding damage to the end of the sliding tube 811, and improving the service life of the water outlet pipe 81.

[0033] like Figure 6 、 Figure 7 As shown, in order to prevent pebbles 72 and sand with smaller diameters from entering the sliding tube 811 when filling them, a barrier net 11 is fixedly connected to the end of the sliding tube 811. The barrier net 11 is located at one end of the sliding tube 811 located inside the permeable cotton bag 71. The barrier net 11 can be the permeable cotton in the prior art or a filter screen with a diameter smaller than the diameter of the pebbles 72 and smaller than the diameter of the sand, thereby preventing sand and pebbles 72 with smaller diameters from entering the sliding tube 811 and affecting the water drainage effect.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A retaining wall drainage device, comprising a wall (1), wherein the wall (1) is provided with a plurality of drainage holes (2), characterized in that: Also includes: The wall (1) is provided with a multi-layer filtering mechanism (3) on the side close to the earthwork. The multi-layer filtering mechanism (3) is evenly arranged along the height direction of the wall (1). Each layer of the filtering mechanism (3) includes multiple groups of anti-filter components (4). A connecting pipe (5) is provided between the multiple groups of anti-filter components (4) on each layer. The connecting pipe (5) is located in the wall (1). Each group of the anti-filter components (4) corresponds to a drain hole (2). Each group of the anti-filter components (4) includes a box (6), a filtering unit (7) and a water outlet unit (8). The filtering unit (7) is located in the box (6). One end of the water outlet unit (8) is located in the box (6) and the other end is located in the drain hole (2). The multiple water outlet units (8) located on the same layer are connected through the connecting pipe (5).

2. A retaining wall drain device according to claim 1, characterized in that: The box body (6) comprises a main box (61) and a cover body (62). The bottom of the cover body (62) is embedded in the main box (61). The main box (61) and the cover body (62) are both provided with water filter holes (63). The bottom of the main box (61) is fixedly connected to a plug rod (64). The end of the plug rod (64) away from the main box (61) is a tapered structure.

3. A retaining wall drain device according to claim 2, characterized in that: The filter unit (7) comprises a water-permeable cotton bag (71), the water-permeable cotton bag (71) is located in the main box (61), and the water-permeable cotton bag (71) contains pebbles (72) and sand grains. The pebbles (72) have different sizes, and the pebbles (72) and sand grains are evenly mixed in the water-permeable cotton bag.

4. A retaining wall drain device according to claim 3, characterized in that: The water outlet unit (8) comprises a water outlet pipe (81), one end of the water outlet pipe (81) passes through the permeable cotton bag (71) and extends into the permeable cotton bag (71), a fixing ring (82) is sleeved on one end of the water outlet pipe (81) located in the permeable cotton bag (71), the fixing ring (82) is fixedly connected to the water outlet pipe (81), the other end of the water outlet pipe (81) passes through the main box (61) and extends into the drain hole (2), a water stop ring (83) is provided in the drain hole (2), the water stop ring (83) is sleeved on the water outlet pipe (81), and the water stop ring (83) is fixedly connected to the water outlet pipe (81).

5. A retaining wall drain device according to claim 4, characterized in that: The water outlet pipe (81) comprises a sliding pipe (811) and a fixed pipe (812). One end of the sliding pipe (811) is located in the permeable cotton bag (71) and is fixedly connected to the permeable cotton bag (71). The fixed pipe (812) is sleeved on the outside of the sliding pipe (811). One end of the fixed pipe (812) passes through the main box (61), and the other end is located in the drain hole (2). An end surface of the fixed pipe (812) close to the main box (61) is flush with the inner wall of the main box (61). The fixed pipe (812) is fixedly connected to the main box (61). A slip ring (9) is sleeved on the sliding pipe (811). The slip ring (9) is fixedly connected to the sliding pipe (811). An annular groove (10) is provided on the inner wall of the fixed pipe (812). The slip ring (9) is adapted to the annular groove (10).

6. A retaining wall drain device according to claim 5, characterized in that: The end of the sliding tube (811) is fixedly connected to a barrier net (11), and the barrier net (11) is located at one end of the sliding tube (811) located inside the water-permeable cotton bag (71).

Images