CN212612893U - Landfill repair system - Google Patents
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- CN212612893U CN212612893U CN202021450494.0U CN202021450494U CN212612893U CN 212612893 U CN212612893 U CN 212612893U CN 202021450494 U CN202021450494 U CN 202021450494U CN 212612893 U CN212612893 U CN 212612893U
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Abstract
The utility model discloses a landfill yard repairing system, which comprises a drainage ditch, wherein the drainage ditch comprises a drainage transverse ditch and a drainage longitudinal ditch; the water conservancy diversion structure, the water conservancy diversion structure include first waterproof back up coat and pass through the drainage blanket, pass through the drainage blanket and extend along landfill yard dump slope to the direction down, and the both sides of passing through the drainage blanket are equipped with first soil horizon, pass through drainage blanket and first soil horizon and all are located first waterproof back up coat, and the at least one horizontal ditch of drainage of water conservancy diversion structure intercommunication. The utility model discloses a set up horizontal ditch of drainage and drainage longitudinal ditch on the landfill yard heap body to utilize the topography, set up the water conservancy diversion structure on the concave path that the surface runoff erodees formation, make the domatic rainwater of heap body can be direct or flow in the horizontal ditch of drainage through the water conservancy diversion structure, be remitted the drainage and dredged in the longitudinal ditch again, slowed down the washing away to domatic upper soil body, reduced soil erosion and water loss, more be favorable to planting the plant on the landfill yard heap body, build landscape.
Description
Technical Field
The utility model relates to a landfill repair system in the field of refuse treatment.
Background
With the increase of population and the improvement of living standard, cities generate a large amount of domestic garbage every day, and the domestic garbage is treated by building domestic garbage landfills all the time. The pollution of leachate, malodorous gas and the like exists in the household garbage landfill, the life of surrounding residents is seriously influenced, and the sealing and ecological restoration of the household garbage landfill are urgently needed.
The landfill yard of domestic waste utilizes the relief usually, forms the heap body, and after closing the field, simple and easy afforestation is done to the earthing behind the heap body cover geotechnological material, and the earthing receives the surface runoff that the rainwater formed to erode, and domatic meeting soil erosion and water loss exposes geotechnological material even, and geotechnological material is aged easily after sunshine insolate and is broken and make the filtration liquid ooze, and the decomposition of domestic waste can produce inhomogeneous settlement simultaneously, easily produces the condition such as ponding, structure destruction, and the environmental remediation degree of difficulty is big.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a landfill repair system and method, it can carry out good ecological remediation to the landfill.
According to a first aspect embodiment of the present invention, there is provided a landfill yard repairing system, comprising a drainage ditch, wherein the drainage ditch comprises a transverse drainage ditch and a longitudinal drainage ditch, and the longitudinal drainage ditch is communicated with all the transverse drainage ditches; the water conservancy diversion structure, the water conservancy diversion structure includes first waterproof back up coat and drainage layer, first waterproof back up coat is used for the shop to cover on the landfill yard body of heap, the drainage layer extends along the domatic decurrent direction of landfill yard body of heap, the both sides of drainage layer are equipped with first soil horizon, drainage layer with first soil horizon all is located on the first waterproof back up coat, the water conservancy diversion structure intercommunication is at least one the horizontal ditch of drainage.
According to the utility model discloses an embodiment of first aspect, furtherly, form the contained angle between the contour line of drainage cross trench and the landfill yard body, the contained angle is 10 ~ 30.
According to the utility model discloses the embodiment of the first aspect, furtherly, the top surface width of penetrating the drainage blanket is less than the bottom surface width, the both sides of penetrating the drainage blanket lean out the setting, first soil horizon covers on the side of penetrating the drainage blanket.
According to the utility model discloses the embodiment of the first aspect, furtherly, water conservancy diversion structure still includes microscler water conservancy diversion piece, the lower part of water conservancy diversion piece is buried the upper portion of passing through the drainage blanket, the length direction of water conservancy diversion piece is followed the extending direction of passing through the drainage blanket arranges.
According to the utility model discloses the embodiment of the first aspect, furtherly, landfill repair system still includes the retaining wall, the retaining wall is located the lateral drainage ditch is close to one side of landfill yard dump body bottom.
According to the utility model discloses the embodiment of the first aspect, furtherly, landfill repair system still includes first settlement treatment structure, first settlement treatment structure is located the settlement department of landfill heap body, first settlement treatment structure is from up including waterproof back up coat of second, first drainage blanket and the second soil horizon of holding in proper order down, the top surface on second soil horizon arches upwards.
According to the utility model discloses the embodiment of the first aspect, furtherly, landfill yard repair system still includes the second settlement processing structure, the second settlement processing structure is located the settlement department of landfill yard pile body, the second settlement processing structure is from up including third prevention water back up coat and second in proper order down and holds the drainage blanket, the second holds the top surface formation of drainage blanket and is used for the recess of retaining.
The utility model has the advantages that: the utility model discloses a set up horizontal ditch of drainage and drainage longitudinal ditch on the landfill yard heap body to utilize the topography, set up the water conservancy diversion structure on the concave path that the surface runoff erodees formation, make the domatic rainwater of heap body can be direct or flow in the horizontal ditch of drainage through the water conservancy diversion structure, be remitted the drainage and dredged in the longitudinal ditch again, slowed down the washing away to domatic upper soil body, reduced soil erosion and water loss, more be favorable to planting the plant on the landfill yard heap body, build landscape.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
FIG. 1 is a schematic view of a landfill remediation system of the present invention;
fig. 2 is a cross-sectional view of the flow guide structure of the present invention;
fig. 3 is a cross-sectional view of a first sedimentation treatment structure in the present invention;
fig. 4 is a sectional view of a second sedimentation treatment structure according to the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 2, the embodiment of the present invention provides a landfill yard repairing system, which includes a drainage ditch 10, a diversion structure 20 and a retaining wall.
The drainage ditch 10 includes a lateral drainage ditch 11 and a longitudinal drainage ditch. The number of the transverse drainage ditches 11 is several, and preferably, at least two transverse drainage ditches 11 are arranged according to the gradient of the landfill yard body. The rainwater falls on the slope surface of the landfill yard body and flows along the slope surface under the action of gravity, so as to flow into the drainage transverse ditch 11. The longitudinal drainage ditches are longitudinally arranged along the slope surface of the landfill yard body, the number of the longitudinal drainage ditches is also a plurality, preferably, more than two longitudinal drainage ditches can be arranged to accelerate drainage efficiency, and water is prevented from overflowing from the longitudinal drainage ditches to the slope surface of the landfill yard body due to insufficient drainage efficiency. The bottom end of the longitudinal drainage ditch is positioned at the toe of the landfill yard body, and the longitudinal drainage ditch is connected into the urban pipeline from the toe. The longitudinal drainage channels are communicated with all the transverse drainage channels 11, and water in each transverse drainage channel 11 is gathered into the longitudinal drainage channels and flows into urban pipelines through the longitudinal drainage channels.
The lateral drainage ditches 11 may be annularly arranged on the landfill yard body so as to comprehensively collect water flowing down the slope. Further as a preferred embodiment, an included angle is formed between the drainage transverse ditch 11 and the contour line 50 of the refuse landfill body, and the included angle is 10-30 degrees; preferably, the drainage transverse ditch 11 and the contour line 50 of the refuse landfill body form an included angle of 10-15 degrees. Because the horizontal drainage ditch 11 forms an included angle with the contour line 50 of the landfill yard body, namely the horizontal drainage ditch 11 has the lowest part, the water flowing into the horizontal drainage ditch 11 will naturally flow to the lowest part of the horizontal drainage ditch 11 under the action of gravity, thus forming natural flow. The longitudinal drainage ditch can be communicated with the lowest part of the transverse drainage ditch 11, so that water in the transverse drainage ditch 11 can quickly flow into the longitudinal drainage ditch, drainage can be timely carried out, and drainage efficiency is improved. Specifically, as an implementation mode, when the number of the longitudinal drainage ditches is one and the number of the transverse drainage ditches 11 is more than two, the longitudinal drainage ditches can communicate with the lowest part of all the transverse drainage ditches 11, so that the arrangement of the longitudinal drainage ditches is saved; in another embodiment, when the number of the vertical drainage grooves is two and the number of the lateral drainage grooves 11 is two or more, one of the vertical drainage grooves may communicate with the lowest part of at least one of the lateral drainage grooves 11, and the other vertical drainage groove may communicate with the lowest parts of the remaining lateral drainage grooves 11, thereby further improving the drainage efficiency of the drainage groove 10.
The retaining wall is positioned on one side of the transverse drainage ditch 11 close to the bottom of the landfill body to prevent the water and soil from flowing to the next block.
The diversion system is positioned in a concave diameter formed by the runoff erosion of the surface of the slope of the landfill body, the diversion structure 20 is arranged by utilizing the terrain, and the water flow on the slope of the landfill body is guided to the diversion system to flow directionally along a certain direction, so that the erosion of the rainwater on the planting soil on the slope is slowed down, and the water and soil loss is reduced. Optionally, the diversion structure 20 may communicate with at least one transverse drainage ditch 11, so that rain water on the slope surface can flow into the transverse drainage ditch 11 through the diversion structure 20 to be drained away in order.
The flow guide structure 20 includes a first waterproof reinforcing layer 21, a water permeable and drainage layer 22, and an elongated flow guide block 25. Optionally, the first waterproof reinforcing layer 21 is a geotextile; the water permeating and draining layer 22 mainly comprises gravels, and the block diameter of the gravels is 2 cm-10 cm; the diversion blocks 25 can be made of concrete or wood subjected to antiseptic treatment, and one section of the diversion blocks is 2m long and 20cm wide and can be spliced and lengthened.
The first waterproof reinforcing layer 21 is laid on the landfill yard body, the permeable and drainage layer 22 is arranged on the first waterproof reinforcing layer 21, and the permeable and drainage layer 22 extends in the downward direction of the slope surface of the landfill yard body, so that rainwater can penetrate into the permeable and drainage layer 22 and can be stored or drained through the permeable and drainage layer 22. The lower part of the guide block 25 is embedded into the upper part of the permeable and drainage layer, the top surface of the permeable and drainage layer 22 at the high position of the top surface of the guide block 25 is about 10cm, and the length direction of the guide block 25 is arranged along the extending direction of the permeable and drainage layer. When rainwater flows into the permeable and drainage layer 22, the rainwater can flow along the length direction of the diversion block 25, and the diversion block 25 plays a role in retaining water and stabilizing water flow, so that the rainwater in the permeable and drainage layer 22 can flow directionally. The both sides of penetrating drainage blanket 22 are equipped with first soil horizon, and first soil horizon all is located first waterproof back up coat 21. The first soil layer can ensure that the water permeable and draining layer 22 is not deformed basically after being washed, and plants can be planted on the first soil layer to form a plant landscape. Optionally, the first soil layer sequentially includes a first backfill soil layer 23 and a first planting soil layer 24 from bottom to top, soil of the first backfill soil layer 23 comes from soil covering the landfill yard body of the refuse landfill, the first planting soil layer 24 is arranged to facilitate growth of plants, and the first backfill soil layer 23 is arranged to save soil needed by the planting soil layer and save cost.
The top surface width of passing through drainage blanket 22 is less than the bottom surface width, and the both sides of passing through drainage blanket 22 lean out the setting, and first soil horizon covers on the side of passing through drainage blanket 22, has increased first soil horizon and the area of contact of passing through drainage blanket 22, makes in the first soil horizon too much moisture can in time be arranged in passing through drainage blanket 22. In addition, because the top surface area of the water permeable and drainage layer 22 is smaller than the bottom surface area, when raining, the area of the contact surface of the water permeable and drainage layer 22 directly washed by rainwater is reduced, so that the broken stones of the water permeable and drainage layer 22 are not easy to scatter and run off, and the water permeable and drainage layer 22 is not easy to deform.
When the refuse landfill body is present at a settlement position, a settlement treatment structure can be arranged according to the specific condition of the settlement position. Utilize the topography of landfill yard stack body undulation, set up different settlement processing structures, build abundant landscape plant landscape. In the embodiment, a first sedimentation treatment structure 30 is arranged at a sedimentation position with a sedimentation depth of less than 80 cm; and arranging a second sedimentation treatment structure 40 at a sedimentation position with the sedimentation depth of more than or equal to 80 cm.
Referring to fig. 3, the first sedimentation treatment structure 30 sequentially includes, from bottom to top, a second waterproof reinforcing layer 31, a first water storage and drainage layer 32, and a second soil layer, and the top surface of the second soil layer is arched upward. On the second soil layer, trees 35 may be planted to create a landscape and reduce soil loss. The second soil layer comprises a second backfill soil layer 33 and a second planting soil layer 34, the second backfill soil layer 33 being located below the second planting soil layer 34. In the embodiment, the top surface of the second backfill soil layer 33 above the subsidence is sunken downwards, and the lowest part of the sunken top surface of the first backfill soil layer 33 is not lower than the elevation of the top end of the subsidence, so that water permeating into the first backfill soil layer is drained and the root system is not soaked in the water; and the top surface of the second planting soil layer 34 above the subsidence is arched upwards, so that the second planting soil layer 34 has enough space to allow soil balls at the root of the arbor 35 to be buried in the second planting soil layer 34, and the soil balls at the root of the plant can be lifted, thereby avoiding the phenomenon of root rot caused by water soaking.
Referring to fig. 4, the second sedimentation treatment structure 40 sequentially includes a third water prevention reinforcing layer 41 and a second water storage and drainage layer 42 from bottom to top, and a groove 43 for storing water is formed on the top surface of the second water storage and drainage layer 42 to form a water landscape. The second water storage and drainage layer 42 is mainly composed of gravels, and when the groove 43 does not store water, the second water storage and drainage layer 42 can form a drought creek type landscape; when the grooves 43 store water, the second sedimentation treatment structure 40 forms water landscape, and the landscape effect on the landfill yard body is enriched.
In the following examples, the method for repairing a landfill site in the present application is described with respect to a landfill site that has been closed for 5 years and has a heap slope of 5 ° to 15 °.
Firstly, the landfill body is firstly investigated and researched in the early stage.
Investigating the water and soil loss condition of the landfill body, finding out the damage condition of the flowing water generated by the surface runoff formed by rainwater of the landfill body to the covering soil and the exposure condition of the geotextile, and marking the surface runoff trend of the landfill body after being washed by the rainwater. And investigating the surface settlement condition of the landfill body due to garbage decomposition, and marking.
And secondly, designing and constructing.
Specifically, the method comprises the following steps:
A10. the slope surface of the refuse landfill body is divided into a plurality of blocks along the longitudinal direction, and the longitudinal length of each block along the slope surface is about 40-60 m. At least one longitudinal drainage ditch is longitudinally arranged on the slope surface of the pile body at the joint, in addition, a retaining wall and a transverse drainage ditch 11 are arranged at the junction of two adjacent blocks, and the transverse drainage ditch 11 is positioned at one side of the retaining wall close to the top of the slope.
An included angle is formed between the drainage transverse ditch 11 and the contour line 50 of the refuse landfill body, and the included angle is 10-30 degrees; preferably, the drainage transverse ditch 11 and the contour line 50 of the refuse landfill body form an included angle of 10-15 degrees. The longitudinal drainage channels are communicated with all the transverse drainage channels 11, and the communication positions of the longitudinal drainage channels and all the transverse drainage channels 11 are positioned at the lowest position of the transverse drainage channels 11, so that accumulated water in the transverse drainage channels 11 can flow into the longitudinal drainage channels spontaneously to be drained away. The bottom end of the longitudinal drainage ditch is arranged at the toe of the landfill yard body, and the longitudinal drainage ditch is connected into the urban pipeline from the toe.
Furthermore, soil structuring treatment is carried out on the soil within 2m of the slope surface of the retaining wall in the direction close to the top of the slope. Specifically, the original soil covering is dug away, a fourth waterproof reinforcing layer and a permeable drainage structure layer consisting of broken stones, a backfill soil structure layer and a planting soil structure layer are sequentially paved on the original geotextile, a drainage pipe can be embedded in the permeable drainage layer 22 to drain rainwater in a soil body into the drainage ditch 10, and shallow root plants can be planted on the planting soil structure layer, so that the low garden landscape is built, and the loss of the backfill soil structure layer and the planting soil structure layer is slowed down. Optionally, the fourth waterproof reinforcing layer may be a geotextile, the thickness of the permeable and drainage structure layer is about 10-15 cm, the thickness of the backfill soil structure layer is about 40-60 cm, and the thickness of the planting soil structure layer is about 30-50 cm.
A20. A flow guiding structure 20 is arranged on a concave diameter formed by radial flow washing of the slope surface of the dump body of the refuse landfill, specifically, soil forming the concave diameter is dug away, a first waterproof reinforcing layer 21 is laid on geotextile originally covering the dump body, and then broken stones are filled in the first waterproof reinforcing layer 21 to form a permeable drainage layer 22. The first waterproof reinforcing layer 21 may be a geotextile having a thickness of 500/m2. Preferably, the width of the water permeable and drainage layer 22 is gradually reduced from bottom to top when the water permeable and drainage layer 22 is laid, and the side surface of the water permeable and drainage layer 22 is inclined outward. Then, soil is filled into both sides of the water permeable and drainage layer 22 to form a first soil layer, and the soil is covered on the side surfaces of the water permeable and drainage layer 22 when the soil is filled. Further, the first soil layer includes a first backfill soil layer 23 and a first planting soil layer 24, so that when soil is filled, backfill plain soil is filled until the backfill plain soil covers the lower portions of the sides of the first waterproof reinforcing layer 21 and the permeable drainage layer 22, and planting soil is filled on the first backfill soil layer 23 to cover the upper portions of the sides of the first backfill soil layer 23 and the permeable drainage layer 22.
Finally, drought and moisture resistant native soil plants are planted on the first soil layer on both sides of the water permeable and drainage layer 22 to create a plant landscape, the water permeable and drainage layer 22 can form a drought brook type landscape, and the diversion structure 20 can integrally form a staggered garden landscape. Drought and humidity tolerant plants may be selected from: polygonum capitatum, rhododendron, radix ophiopogonis, pinus avicularis, canna, dayflower, dragon boat flower, jasmine and the like.
Further, both ends of the diversion structure 20 may communicate with the drainage transverse ditch 11 below the diversion structure closest thereto, so that rainwater on the slope surface of the landfill yard body may be diverted into the drainage transverse ditch 11 through the diversion structure 20.
According to the settlement condition on the slope surface of the landfill body, when the settlement depth of the settlement position of the landfill body is less than or equal to 80cm, the first settlement processing structure 30 is arranged at the settlement position, and the method comprises the following steps:
B10. the soil at the subsidence is excavated and then a second waterproof reinforcing layer 31 is laid. Alternatively, the second waterproof reinforcing layer 31 is a geotextile, and may have a thickness of 500g/m2。
B20. And filling broken stones into the second waterproof reinforcing layer 31 to form a first water storage and drainage layer 32, wherein the thickness of the water storage and drainage layer is 15-20 cm.
B30. Soil is covered above the first water storage and drainage layer 32 to form a second soil layer, the top surface of the second soil layer is arched upwards, and the second soil layer takes the subsidence as the center to raise the peripheral elevation to build an upwards arched terrain. Preferably, the second soil layer includes a second backfill soil layer 33 and a second planting soil layer 34, the second backfill soil layer 33 is about 40-60 cm thick, and the second planting soil layer 34 is about 50-90 cm thick. Plain soil is backfilled on the first water storage and drainage layer 32 to form a first backfilling soil layer 23, the storefront of the first backfilling soil layer 23 is sunken downwards by taking the subsidence as the center, then planting soil is covered on the first backfilling soil layer 23 to form a first planting soil layer 24, and the top surface of the first planting soil layer 24 is arched upwards by taking the subsidence as the center, so that the growth space of the roots of the plants can be enlarged, and the planting of large plants is facilitated.
B40. And planting plants on the second soil layer. Preferably, a tree 35 is selected to be planted, and root soil balls of the tree 35 are planted in the first planting soil layer 24. The arbor 35 used is dominated by a fibrous root arbor, such as: melia azedarach, Melastoma esculenta, Sophora bifida, Sapium sebiferum, Stenobium nobilis, Schisandra chinensis, hackberry, Osmanthus fragrans, Pseudoradix Aristolochiae, Erythrocarpus Canadensis, Michelia figo, Camellia japonica, frangipani, Betula alba, Semiaquilegia, Mirabilis jalapa, Lagerstroemia indica, Franchet, Broussonetia papyrifera, etc.
When the settlement depth of the settlement position of the landfill body is more than 80cm, the second settlement processing structure 40 is arranged at the settlement position, and the method comprises the following steps:
C10. and excavating the soil at the settlement position, and then paving a third water prevention reinforcing layer 41. Optionally, the third water-proofing reinforcing layer 41 is made of geotextile and has a thickness of 600/m2。
C20. Fill in the rubble on third prevention water reinforcing layer 41 in order to form second and hold drainage bed 42, second holds drainage bed 42 and sets up along the bottom surface of settlement department, and the recess 43 that is used for retaining is formed to the top surface of second and hold drainage bed 42. The thickness of the second water storage and discharge layer is 20-30 cm. When the grooves 43 do not store water, the second water storage and drainage layer 42 can form a dry brook type landscape.
C30. Soil is poured into the periphery of the groove 43 to form a third soil layer, and drought-resistant and moisture-resistant plants are planted on the third soil layer to build a plant landscape. Preferably, the third soil layer comprises a third backfill soil layer 44 and a third plant soil layer 45. Backfilling plain soil is filled into the peripheral side of the groove 43 to form a third backfilling soil layer 44, and planting soil is poured thereon to form a third planting soil layer 45. The depth of the groove 43 relative to the slope is deepened due to the arrangement of the third soil layer, and more water is stored in the groove 43. When the water level in the groove 43 is higher than the top of the second water storage and drainage layer 42, the water in the groove 43 can permeate into the soil body through the third soil layer, thereby being beneficial to the moisture preservation of the plants planted on the third soil layer.
Further as a preferred embodiment, no matter the settlement depth of the settlement place, when the settlement place is intersected with the concave diameter formed by the surface runoff on the slope surface through scouring, the second settlement processing structure 40 can be arranged at the settlement place to enable the diversion system to be communicated with the groove 43, so that rainwater on the slope surface of the landfill body is guided into the groove 43, a water landscape can be formed, and excessive water in the diversion system is prevented from flowing into the first soil layer of the first settlement processing structure 30, so that excessive water in the first soil layer is prevented from being beneficial to the growth of trees.
And thirdly, adding planting soil to the original covering soil of other areas of the landfill body not needing construction, wherein the thickness of the planting soil is about 30-50 cm. Shrubs and groundcover-based plants are planted on the planting soil in these areas, and a staggered plant landscape effect is created in combination with the arbor landscape planted in the elevated landscape in the first settlement treatment structure 30.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited thereto, and various changes and modifications may be made without departing from the spirit of the invention.
Claims (7)
1. A landfill repair system, comprising:
the drainage ditch (10), the drainage ditch (10) includes the horizontal ditch of drainage (11) and the vertical ditch of drainage (12), the vertical ditch of drainage (12) communicates all the horizontal ditches of drainage (11);
flow guide structure (20), flow guide structure (20) include first waterproof back up coat (21) and pass through drainage blanket (22), first waterproof back up coat (21) are used for the shop to cover on the landfill yard body, pass through drainage blanket (22) and extend along the domatic decurrent direction of landfill yard body, the both sides of passing through drainage blanket (22) are equipped with first soil horizon, pass through drainage blanket (22) with first soil horizon all is located on first waterproof back up coat (21), flow guide structure (20) intercommunication is at least one horizontal ditch of drainage (11).
2. The landfill repair system of claim 1, wherein: an included angle is formed between the drainage transverse ditch (11) and a contour line (50) of the refuse landfill body, and the included angle is 10-30 degrees.
3. The landfill repair system of claim 1, wherein: the top surface width of penetrating drainage blanket (22) is less than the bottom surface width, the both sides of penetrating drainage blanket (22) lean out the setting, first soil horizon covers on the side of penetrating drainage blanket (22).
4. The landfill repair system of claim 1, wherein: the flow guide structure (20) further comprises a long flow guide block (25), the lower portion of the flow guide block (25) is embedded into the upper portion of the permeable and drainage layer, and the length direction of the flow guide block (25) is arranged along the extending direction of the permeable and drainage layer.
5. The landfill repair system of claim 1, wherein: the landfill yard repairing system further comprises a retaining wall, and the retaining wall is located on one side, close to the bottom of the landfill yard body, of the drainage transverse ditch (11).
6. The landfill repair system of claim 1, wherein: landfill repair system still includes first settlement processing structure (30), first settlement processing structure (30) are located the department of subsiding of landfill yard dump body, first settlement processing structure (30) are from up including waterproof back up coat of second (31), first water storage and drainage layer (32) and second soil horizon down in proper order, the top surface on second soil horizon arches upwards.
7. The landfill repair system of claim 1, wherein: landfill yard repair system still includes that the second subsides processing structure (40), the second subsides processing structure (40) and is located the department of subsiding of landfill yard dump body, the second subsides processing structure (40) and from up including third prevention water reinforcing layer (41) and second in proper order down holds drainage blanket (42), the top surface that drainage blanket (42) were held to the second forms recess (43) that are used for retaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021450494.0U CN212612893U (en) | 2020-07-21 | 2020-07-21 | Landfill repair system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021450494.0U CN212612893U (en) | 2020-07-21 | 2020-07-21 | Landfill repair system |
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| CN212612893U true CN212612893U (en) | 2021-02-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809707A (en) * | 2020-07-21 | 2020-10-23 | 广州普邦园林股份有限公司 | Landfill repairing system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809707A (en) * | 2020-07-21 | 2020-10-23 | 广州普邦园林股份有限公司 | Landfill repairing system and method |
| CN111809707B (en) * | 2020-07-21 | 2024-05-28 | 广州普邦园林股份有限公司 | Landfill site repairing system and method |
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