Geogrid structure for improving slope bearing capacity of refuse landfill
By designing foundation pits, anti-seepage structures and reinforcement mechanisms on the slopes of landfills, combining fixed plates and stable nails, the problem of insufficient bearing pressure on high and steep slopes is solved, and higher slope stability is achieved Protective effect.
Patent Information
- Application Number
- CN202323631617.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The geogrid structure of the existing landfill is prone to instability and collapse on high and steep slopes, resulting in insufficient load pressure and affecting practicality.
A structure including foundation pit, anti-seepage structure, geogrid body, reinforcement mechanism and fixing mechanism is designed, through threaded holes, reinforcement ribs, fixing bolts, countersunk grooves, first fixing plates and second fixing plates, etc. Components to achieve reinforcement and fixation of geogrids, and adjust the spacing of reinforcement ribs to improve slope bearing and stability.
It effectively improves the bearing capacity and stability of the landfill slope, avoids geogrid position offset and slope collapse, and enhances the protective effect.
Smart Images
Figure CN222183388U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of garbage landfills, in particular to a geogrid structure used for improving the bearing capacity of a slope of a garbage landfill. Background Art
[0002] A landfill is a centralized garbage dumping site that uses sanitary landfilling. Sanitary landfills are widely used in China because of their low cost and high hygiene level. The largest landfill in China is the Guangzhou Xingfeng Landfill, which processes about 7,000 tons of domestic waste per day.
[0003] For example, China Utility Model Patent Publication No. (CN217352530U) discloses a geogrid slope protection structure after the closure of a landfill, which includes a three-dimensional geogrid, a fixing assembly and a U-shaped anchor. The three-dimensional geogrid is fixed to the slope by a plurality of U-shaped anchors, and the top edge and the bottom edge of the three-dimensional geogrid are fixed to the shoulder and the foot of the slope by the fixing assembly, respectively. This utility solves the problem that the existing protection structure directly lays the three-dimensional geogrid on the slope, but it is easy to shift and the protection effect is poor. However, factors such as the height and slope of the slope will affect the bearing pressure of the slope, and the geogrid cannot be reinforced in this patent, which makes the high and steep slopes easy to become unstable and damaged, causing the slope to collapse, affecting the practicality. Utility Model Content
[0004] In view of the shortcomings of the prior art, the utility model provides a geogrid structure for improving the bearing capacity of landfill slopes, which has the advantages of improving the bearing capacity and stability of landfill slopes, and solves the problem that factors such as the height and slope of the slope will affect the bearing pressure of the slope, while the geogrid cannot be reinforced in the patent, resulting in high and steep slopes being easily unstable and damaged, causing slope collapse and affecting practicality.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a geogrid structure for improving the bearing capacity of a landfill slope, comprising a foundation pit, an anti-seepage structure is fixed on the inner side of the foundation pit, a geogrid body is laid on the inner side of the anti-seepage structure, a reinforcement mechanism for improving the bearing capacity of the slope is arranged on the geogrid body, and a fixing mechanism for improving the stability of the geogrid is arranged on the geogrid body;
[0006] The reinforcement mechanism includes a threaded hole opened on the side of the geogrid body away from the anti-seepage structure, a reinforcing rib is provided on the left side of the threaded hole, a connecting hole is opened on the left side of the reinforcing rib, a fixing bolt is provided on the inner side of the connecting hole, the fixing bolt is threadedly connected to the inner side of the threaded hole, and a countersunk groove is opened on the left side of the reinforcing rib.
[0007] Furthermore, the number of the geogrid bodies is four and they are evenly distributed on the four inner walls of the anti-seepage structure.
[0008] Furthermore, the number of the reinforcing ribs is not less than two, and they are evenly distributed on a side of each geogrid body away from the anti-seepage structure.
[0009] Furthermore, each of the reinforcing ribs is provided with no less than two communicating holes, which are evenly spaced on the reinforcing ribs.
[0010] Furthermore, the number of the threaded holes and countersunk grooves is equal to the number of the communicating holes, and the positions correspond one to one.
[0011] Furthermore, the fixing mechanism includes a first fixing plate fixed on the right side of the geogrid body, a first stabilizing nail is slidably connected to the first fixing plate, a second fixing plate is fixed on the left side of the geogrid body, and a second stabilizing nail is slidably connected to the second fixing plate.
[0012] Furthermore, the number of the first stabilizing nails and the second stabilizing nails are no less than two, and are equidistantly distributed on the first fixing plate and the second fixing plate respectively.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0014] 1. The geogrid structure used to improve the bearing capacity of the landfill slope can fix the reinforcing ribs on the surface of the geogrid by means of the cooperation of the threaded hole and the fixing bolt. The fixing bolt passes through the connecting hole and enters into the threaded hole and is threadedly connected with the threaded hole. At the same time, the spacing of the reinforcing ribs can be adjusted according to the slope of the slope, thereby improving the bearing capacity and stability of the slope. The fixing bolt can be hidden by means of the cooperation of the countersunk groove so that the geotextile can be laid on the surface.
[0015] 2. The geogrid structure for improving the bearing capacity of the landfill slope can extend the geogrid through the cooperation of the first fixing plate and the second fixing plate, so that the geogrid is in contact with the inner bottom wall of the foundation pit and the ground outside the pit. The first fixing plate and the second fixing plate can be fixed to the ground surface and the foundation pit respectively through the cooperation of the first stabilizing nail and the second stabilizing nail, thereby improving the stability of the geogrid and avoiding the displacement of the position of the geogrid. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the reinforcement mechanism of the utility model;
[0018] Figure 3 It is a side view of the reinforcement mechanism of the utility model;
[0019] Figure 4 It is a schematic diagram of the fixing mechanism of the utility model.
[0020] In the figure: 1 foundation pit, 2 anti-seepage structure, 3 geogrid body, 4 reinforcement mechanism, 401 threaded hole, 402 reinforcing rib, 403 connecting hole, 404 fixing bolt, 405 countersunk groove, 5 fixing mechanism, 501 first fixing plate, 502 first stabilizing nail, 503 second fixing plate, 504 second stabilizing nail. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0022] See also Figure 1 In this embodiment, a geogrid structure for improving the bearing capacity of a landfill slope includes a foundation pit 1, an anti-seepage structure 2 is fixed on the inner side of the foundation pit 1, and the anti-seepage structure 2 is laid in the foundation pit 1 to prevent the seepage liquid generated by the landfilled garbage from seeping into the underground and polluting the groundwater and the environment. A geogrid body 3 is laid on the inner side of the anti-seepage structure 2, and the geogrid body 3 is laid on the surface of the anti-seepage structure 2 to support the slope and the anti-seepage structure 2. A reinforcement mechanism 4 for improving the bearing capacity of the slope is provided on the geogrid body 3 to improve the bearing capacity and stability of the slope and avoid slope collapse. A fixing mechanism 5 for improving the stability of the geogrid is provided on the geogrid body 3 to prevent the position of the geogrid from shifting.
[0023] There are four geogrid bodies 3 , which are evenly distributed on the four inner walls of the anti-seepage structure 2 , so that the four side slopes of the foundation pit 1 can be supported.
[0024] See also Figure 2-3In order to improve the bearing capacity and stability of the slope and avoid slope collapse, the reinforcement mechanism 4 in this embodiment includes a threaded hole 401 opened on the side of the geogrid body 3 away from the anti-seepage structure 2, a reinforcing rib 402 is provided on the left side of the threaded hole 401, a connecting hole 403 is opened on the left side of the reinforcing rib 402, a fixing bolt 404 is provided on the inner side of the connecting hole 403, and the fixing bolt 404 is threadedly connected with the inner side of the threaded hole 401. The reinforcing rib 402 is laid on the surface of the geogrid body 3, and then the fixing bolt 404 is passed through the connecting hole 403, so that the fixing bolt 404 enters the threaded hole 401, and the fixing bolt 404 is screwed into the threaded hole 401 to fix the reinforcing rib 402 on the geogrid body 3. A countersunk groove 405 is opened on the left side of the reinforcing rib 402 to hide the position of the fixing bolt 404 to prevent the protrusion of the fixing bolt 404 from affecting the subsequent laying of the geotextile.
[0025] In this example, the number of reinforcing ribs 402 is not less than two, and they are evenly distributed on the side of each geogrid body 3 away from the anti-seepage structure 2. Each reinforcing rib 402 is provided with at least two connecting holes 403, which are evenly distributed on the reinforcing rib 402. The number of threaded holes 401 and countersunk grooves 405 is equal to the number of connecting holes 403, and the positions correspond one to one. The installation spacing of the reinforcing ribs 402 is adjusted according to the slope gradient and height of the slope, and the reinforcing ribs 402 are evenly distributed and fixed, thereby improving the bearing capacity and stability of the landfill slope.
[0026] See also Figure 4 In order to prevent the position of the geogrid from shifting, the fixing mechanism 5 in this embodiment includes a first fixing plate 501 fixed to the right side of the geogrid body 3, and a first stabilizing nail 502 is slidably connected to the first fixing plate 501, and a second fixing plate 503 is fixed to the left side of the geogrid body 3, and a second stabilizing nail 504 is slidably connected to the second fixing plate 503. The first stabilizing nail 502 and the second stabilizing nail 504 are pushed into the ground surface and the foundation pit 1 respectively, so that the first fixing plate 501 is fixed on the ground surface, and the second fixing plate 503 is fixed in the foundation pit 1, so that the position of the geogrid body 3 is fixed to prevent the geogrid body 3 from shifting.
[0027] In this example, the number of the first stabilizing nails 502 and the second stabilizing nails 504 are no less than two, and they are equidistantly distributed on the first fixing plate 501 and the second fixing plate 503 front and back, respectively, to improve the stability of the first fixing plate 501 and the second fixing plate 503.
[0028] The working principle of the above embodiment is:
[0029] (1) First, a foundation pit 1 is dug on the ground as a space for landfilling garbage. Then, an anti-seepage structure 2 is laid in the foundation pit 1 to prevent the seepage liquid generated by the landfilled garbage from seeping into the ground and polluting the groundwater and the environment. After the anti-seepage structure 2 is laid, the geogrid body 3 is laid on the surface of the anti-seepage structure 2 to support the slope and the anti-seepage structure 2. After the position of the geogrid body 3 is laid, the first stabilizing nail 502 and the second stabilizing nail 504 are pushed into the ground surface and the foundation pit 1 respectively, so that the first fixing plate 501 is fixed on the ground surface, and the second fixing plate 503 is fixed in the foundation pit 1, so that the position of the geogrid body 3 is fixed to prevent the geogrid body 3 from shifting.
[0030] (2) After fixing the position of the geogrid body 3, the reinforcing ribs 402 are laid on the surface of the geogrid body 3, and then the fixing bolts 404 are passed through the connecting holes 403, so that the fixing bolts 404 enter the threaded holes 401, and the fixing bolts 404 are screwed into the threaded holes 401 to fix the reinforcing ribs 402 on the geogrid body 3. Then, according to the slope and height of the slope, the installation spacing of the reinforcing ribs 402 is adjusted, and the reinforcing ribs 402 are evenly distributed and fixed, thereby improving the bearing capacity and stability of the landfill slope.
[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.
Claims
1. A geogrid structure for improving the bearing capacity of a landfill slope, comprising a foundation pit (1), Features: An anti-seepage structure (2) is fixed on the inner side of the foundation pit (1), a geogrid body (3) is laid on the inner side of the anti-seepage structure (2), a reinforcement mechanism (4) for improving the slope bearing capacity is arranged on the geogrid body (3), and a fixing mechanism (5) for improving the stability of the geogrid is arranged on the geogrid body (3); The reinforcement mechanism (4) comprises a threaded hole (401) provided on a side of the geogrid body (3) away from the anti-seepage structure (2); a reinforcing rib (402) is provided on the left side of the threaded hole (401); a connecting hole (403) is provided on the left side of the reinforcing rib (402); a fixing bolt (404) is provided on the inner side of the connecting hole (403); the fixing bolt (404) is threadedly connected to the inner side of the threaded hole (401); and a countersunk groove (405) is provided on the left side of the reinforcing rib (402).
2. A geogrid structure for improving the bearing capacity of a landfill slope according to claim 1, Features: The number of the geogrid bodies (3) is four and they are evenly distributed on the four inner walls of the anti-seepage structure (2).
3. A geogrid structure for improving the bearing capacity of a landfill slope according to claim 2, Features: The number of the reinforcing ribs (402) is not less than two, and they are evenly distributed on the side of each geogrid body (3) away from the anti-seepage structure (2).
4. A geogrid structure for improving the bearing capacity of a landfill slope according to claim 3, Features: Each of the reinforcing ribs (402) is provided with no less than two communicating holes (403), which are equidistantly distributed on the reinforcing ribs (402).
5. A geogrid structure for improving the bearing capacity of a landfill slope according to claim 4, Features: The number of the threaded holes (401) and the countersunk grooves (405) is equal to the number of the communicating holes (403), and the positions correspond one to one.
6. A geogrid structure for improving the bearing capacity of a landfill slope according to claim 1, Features: The fixing mechanism (5) comprises a first fixing plate (501) fixed to the right side of the geogrid body (3), a first stabilizing nail (502) being slidably connected to the first fixing plate (501), a second fixing plate (503) being fixed to the left side of the geogrid body (3), a second stabilizing nail (504) being slidably connected to the second fixing plate (503).
7. A geogrid structure for improving the bearing capacity of a landfill slope according to claim 6, Features: The number of the first stabilizing pins (502) and the second stabilizing pins (504) is no less than two, and they are respectively distributed on the first fixing plate (501) and the second fixing plate (503) at equal distances from front to back.