CN215053297U - Sealing impervious layer of refuse landfill - Google Patents
Sealing impervious layer of refuse landfill Download PDFInfo
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- CN215053297U CN215053297U CN202121422703.5U CN202121422703U CN215053297U CN 215053297 U CN215053297 U CN 215053297U CN 202121422703 U CN202121422703 U CN 202121422703U CN 215053297 U CN215053297 U CN 215053297U
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Abstract
A landfill yard closing impervious barrier, including impervious sheet, back seepage board and back seepage board; the anti-seepage plate comprises a first anti-seepage film, a steel frame, a support column and a second anti-seepage film which are sequentially arranged from top to bottom, the steel frame and the support column are sealed by the first anti-seepage film and the second anti-seepage film, and a water absorbing material is filled in a gap between the steel frame and the support column. This prevention of seepage board in landfill closure barrier layer passes through the setting of two-layer prevention of seepage membrane, effectively reach the effect of prevention of seepage water, set up by both sides to middle bellied steelframe between first prevention of seepage membrane and second prevention of seepage membrane, make whole prevention of seepage plate structure can also play the effect of water guide drainage at prevention of seepage water in-process, it has water-absorbing material to pack in the space between steelframe and support column in addition, can adsorb the water that permeates into in the steelframe, effectively carry out prevention of seepage water, whole prevention of seepage plate structure can be consolidated to the sand simultaneously, improve the bearing weight of prevention of seepage board, prolong its life.
Description
Technical Field
The utility model relates to a landfill seals technical field, concretely relates to landfill seal barrier layer.
Background
According to statistics, the production of domestic garbage in cities and towns in 2011 is about 2.77 hundred million tons, which accounts for 26 percent of garbage all over the world, and the domestic garbage is the first major country of garbage, and is increased by about 5 to 8 percent every year. Domestic garbage in cities in China exceeds 80 hundred million tons, occupies more than 80 ten thousand acres of land, and the land occupation amount is increased at a speed of about 4.8 percent per year.
At present, most of municipal refuse treatment in China is carried out by sealing landfill, a plurality of refuse landfills are subjected to sealing treatment when the service life is reached, the refuse landfills generally comprise greening layers, drainage layers, impermeable layers and air guide layers, a refuse body is arranged below a base layer, the impermeable layers are basically sealed by impermeable films or other impermeable materials in the prior art when the landfills are sealed, and as the refuse degradation of the common refuse landfills needs a long time, the longer the age of the impermeable films is, the larger the loss is, the poor impermeable effect is caused, so that in rainy weather, a large amount of water permeates into the refuse landfills, and the refuse sewage can seriously affect the surrounding underground water and buildings.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a refuse landfill closure barrier layer, the prevention of seepage is effectual.
In order to achieve the above object, the utility model provides a following technical scheme: a landfill containment barrier for closing a landfill site, comprising:
the anti-seepage top protrudes from two sides to the middle;
the seepage return plate is connected with the concave surface of the seepage-proofing plate, and a water storage space is formed between the seepage-proofing plate and the seepage-proofing plate; and
the baffle is arranged between the seepage-proofing plate and the back seepage plate and is used for sealing the water storage space;
the anti-seepage plate comprises a first anti-seepage film, a steel frame, a support column and a second anti-seepage film which are sequentially arranged from top to bottom, the steel frame and the support column are sealed by the first anti-seepage film and the second anti-seepage film, and a water absorbing material is filled in a gap between the steel frame and the support column.
Furthermore, a plurality of through holes for communicating the water storage space with the outside are formed in the reverse osmosis plate.
Furthermore, a water inlet and a water outlet are formed in the baffle, and the height of the water inlet on the baffle is lower than that of the water outlet on the baffle.
Further, a screen for filtering is arranged at the water discharge port.
Further, the first and second barrier membranes are HDPE barrier membranes.
Further, the water absorbing material is any one of water absorbing resin, water absorbing particles, foam and sand.
According to the above technical scheme, the utility model discloses following beneficial effect has:
this prevention of seepage board in landfill closure barrier layer passes through the setting of two-layer prevention of seepage membrane, effectively reach the effect of prevention of seepage water, compare in simple prevention of seepage membrane structure simultaneously, set up by both sides to middle bellied steelframe between first prevention of seepage membrane and second prevention of seepage membrane in this application, make whole prevention of seepage board structure can also play the effect of water guide drainage at prevention of seepage water in-process, the infiltration of earth's surface water flows to both sides through prevention of seepage board, get into in the soil all around, in addition the space intussuseption between steelframe and support column is filled with water-absorbing material, can adsorb the water that permeates into the steelframe, effectively carry out prevention of seepage water, whole prevention board structure can be consolidated to the sand simultaneously, improve the bearing weight of prevention of seepage board, prolong its life.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the structure of the anti-seepage plate of the present invention.
Fig. 3 is a schematic view of the connection structure of the steel frame and the first anti-seepage film of the present invention.
Fig. 4 is a schematic diagram of the structure of the reverse osmosis plate of the present invention.
Fig. 5 is a schematic view of the structure of the water outlet of the present invention.
In the figure: 1. an impermeable plate; 110. a first impermeable membrane; 120. a steel frame; 130. a support pillar; 140. a second impermeable membrane; 150. a water-absorbing material; 2. a rewet plate; 210. a through hole; 3. a baffle plate; 310. a water inlet; 320. a water outlet; 321. and (4) screening.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-5, the utility model provides a landfill closure barrier, including prevention of seepage board 1 and return board 2, prevention of seepage board 1 is the arc structure, returns board 2 and sets up the lower extreme at prevention of seepage board 1, and it is connected with the depressed face of prevention of seepage board 1, forms a water storage space between prevention of seepage board 1 and return board 2, is provided with baffle 3 around between prevention of seepage board 1 and return board 2, and the baffle seals the water storage space.
Wherein, the anti-seepage plate 1 comprises a first anti-seepage film 110, a steel frame 120, a support column 130 and a second anti-seepage film 140 which are sequentially arranged from top to bottom, the first anti-seepage film 110 and the second anti-seepage film 140 are HDPE anti-seepage films, the steel frame 120 and the support column 130 are both made of stainless steel, the steel frame is of an arc structure, three steel frames which are transversely arranged and two steel frames which are longitudinally arranged are adopted to be welded into a support frame, the first anti-seepage film is attached to the top surface of the support frame, a plurality of support columns 130 are arranged, the support column 130 is arranged at the lower end of the steel frame 120 to support the support frame, the steel frame of the arc structure is prevented from being twisted after being excessively stressed, and the later anti-seepage effect is influenced, and a second impermeable film 140 is adhered to the lower end of the support column 130, and in order to ensure the impermeable effect of the whole impermeable plate 1, the impermeable film is wrapped between the first impermeable film and the second impermeable film. And a water absorption material 150 is filled in a gap between the steel frame and the support column, and the water absorption material is sand.
Whole prevention of seepage board 1 is through the setting of two-layer prevention of seepage membrane, effectively reach the effect of prevention of seepage water, compare in simple prevention of seepage membrane structure simultaneously, set up by both sides to middle bellied steelframe between first prevention of seepage membrane and second prevention of seepage membrane in this application, make whole prevention of seepage plate structure can also play the effect of water guide drainage at prevention of seepage water in-process, the water of earth's surface infiltration flows to both sides through prevention of seepage board, get into in the soil all around, in addition, the space intussuseption between steelframe and support column is filled with the sand, can adsorb the water that permeates into in the steelframe, effectively prevent seepage water, whole prevention of seepage plate structure can be consolidated to the sand simultaneously, improve the bearing weight of prevention of seepage board, prolong its life.
The infiltration plate 2 is provided with a plurality of through holes 210 which penetrate through the water storage space and the outside for infiltrating water into the garbage pile at the bottom, the baffle 3 is provided with a water inlet 310 and a water outlet 320, wherein the height of the water inlet 310 on the baffle is lower than that of the water outlet on the baffle, so as to prevent the water from being discharged through the water outlet when the water level does not reach a certain height, when in use, the water inlet is externally connected with the water pipe and is connected with the water tank on the ground, the water outlet 320 and the water inlet are not arranged on the same surface, and the water outlet is provided with a screen 321, when in use, water is injected into the water storage space through the water inlet 310 and then is left in the garbage pile at the bottom through the through hole 210, the setting of this structure can pour into suitable moisture into to the rubbish heap of bottom, prevents that the degradation of rubbish organic matter in the landfill does not have when suitable moisture, can increase the maintenance time of the time of rubbish degradation and landfill later stage.
Example 2
The anti-seepage plate 1 is of an inverted V-shaped structure, the steel frame is of an inverted V-shaped structure, and other structures are the same.
The working principle is as follows:
the water seeped in the soil flows to the areas at two sides through the first impermeable membrane, if the water passing through the first impermeable membrane can be intercepted by sand and the second impermeable membrane, the water storage space is irrigated through the water inlet within a certain time, then the water flows into the soil at the lower end of the impermeable layer and the garbage pile in the soil through the through holes on the return permeable plate, the water in the garbage pile is increased, the degradation of the garbage pile is accelerated, the water can be discharged through the water outlet when the water amount is too much, the water is prevented from being too much, a large amount of sewage is generated in the garbage pile, meanwhile, the water can also enter the water storage space through the water outlet when the soil outside the impermeable layer is too much, the sand and stones in the soil are filtered by the screen mesh and then the water is returned into the garbage pile, under the structure, the soil moisture outside the impermeable layer is utilized for recycling, the water amount of the soil is small, and the water amount entering the water storage space through the water outlet is also small, under the condition of meeting the garbage degradation condition, a large amount of sewage generated in the garbage pile due to excessive water injection can be avoided, and meanwhile, the water resource is saved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A landfill yard closing barrier layer, its characterized in that includes: the anti-seepage plate (1), the anti-seepage plate (1) protrudes from two sides to the middle; the seepage-returning plate (2), the seepage-returning plate (2) is connected with the sunken surface of the seepage-proofing plate (1), and a water storage space is formed between the seepage-proofing plate and the seepage-proofing plate; and a baffle (3) arranged between the anti-seepage plate and the return seepage plate and used for sealing the water storage space;
the anti-seepage plate (1) comprises a first anti-seepage film (110), a steel frame (120), a support column (130) and a second anti-seepage film (140) which are sequentially arranged from top to bottom, the steel frame (120) and the support column (130) are sealed by the first anti-seepage film (110) and the second anti-seepage film (140), and a water absorbing material (150) is filled in a gap between the steel frame and the support column.
2. The landfill yard closing impermeable layer of claim 1, wherein: the infiltration plate (2) is provided with a plurality of through holes (210) for communicating the water storage space with the outside.
3. The landfill yard closing impermeable layer of claim 1, wherein: the baffle (3) is provided with a water inlet (310) and a water outlet (320), and the height of the water inlet (310) on the baffle is lower than that of the water outlet on the baffle.
4. The landfill yard closing impermeable layer of claim 3, wherein: a screen (321) for filtering is arranged at the water outlet (320).
5. The landfill yard closing impermeable layer of claim 1, wherein: the first (110) and second (140) barrier membranes are HDPE barrier membranes.
6. The landfill yard closing impermeable layer of claim 1, wherein: the water absorbing material (150) is any one of water absorbing resin, water absorbing particles, foam and sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121422703.5U CN215053297U (en) | 2021-06-25 | 2021-06-25 | Sealing impervious layer of refuse landfill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121422703.5U CN215053297U (en) | 2021-06-25 | 2021-06-25 | Sealing impervious layer of refuse landfill |
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| CN215053297U true CN215053297U (en) | 2021-12-07 |
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| CN202121422703.5U Active CN215053297U (en) | 2021-06-25 | 2021-06-25 | Sealing impervious layer of refuse landfill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753394A (en) * | 2022-05-07 | 2022-07-15 | 中国水电基础局有限公司 | Double-layer HDEP (high-density polyethylene) membrane locking joint connecting device and using method |
-
2021
- 2021-06-25 CN CN202121422703.5U patent/CN215053297U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753394A (en) * | 2022-05-07 | 2022-07-15 | 中国水电基础局有限公司 | Double-layer HDEP (high-density polyethylene) membrane locking joint connecting device and using method |
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