CN109972665B - Horizontal permeation-preventing structure with low permeation coefficient - Google Patents
Horizontal permeation-preventing structure with low permeation coefficient Download PDFInfo
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- CN109972665B CN109972665B CN201910285583.XA CN201910285583A CN109972665B CN 109972665 B CN109972665 B CN 109972665B CN 201910285583 A CN201910285583 A CN 201910285583A CN 109972665 B CN109972665 B CN 109972665B
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- layer
- impermeable layer
- seepage
- impermeable
- garbage
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- 239000010813 municipal solid waste Substances 0.000 claims abstract description 74
- 230000035699 permeability Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000005086 pumping Methods 0.000 claims description 23
- 230000004888 barrier function Effects 0.000 claims description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 5
- 230000008595 infiltration Effects 0.000 claims description 5
- 238000001764 infiltration Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 11
- 238000010257 thawing Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 108010053481 Antifreeze Proteins Proteins 0.000 abstract 2
- 230000002528 anti-freeze Effects 0.000 abstract 2
- 239000007788 liquid Substances 0.000 description 17
- 239000002689 soil Substances 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 12
- 230000002265 prevention Effects 0.000 description 10
- 239000000654 additive Substances 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 6
- 229920006262 high density polyethylene film Polymers 0.000 description 5
- 238000007710 freezing Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/004—Sealing liners
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of a horizontal impermeable structure of a refuse dump, and discloses a horizontal impermeable structure with low permeability coefficient, which comprises an upper impermeable layer and a lower impermeable layer positioned below the upper impermeable layer, wherein the upper impermeable layer is recessed downwards along the ground to form a first placing cavity, the lower impermeable layer is recessed along the direction deviating from the upper impermeable layer to form a second placing cavity, and the first placing cavity and the second placing cavity are arranged in an up-down opposite way; the upper impermeable layer comprises a plurality of sections of impermeable sections which are connected end to end, an included angle is formed between the adjacent impermeable sections, and the included angle is gradually reduced along the direction from the middle part to the two ends of the upper impermeable layer. Under the action of the upper impermeable layer, the primary impermeable effect is realized on the garbage seepage, and under the action of each impermeable section, the garbage seepage is guided in a multi-layer manner, so that the flow speed and the impact force of the garbage seepage are reduced; under the action of the lower impermeable layer, the garbage seepage is further prevented; under the cooperation of the upper impermeable layer and the lower impermeable layer, the permeability coefficient is greatly reduced, the impermeable requirement is met, the anti-corrosion and anti-freeze thawing performance is better realized, and the anti-freeze thawing performance is not easy to damage.
Description
Technical Field
The invention relates to the technical field of horizontal anti-seepage structures of garbage yards, in particular to a horizontal anti-seepage structure with low seepage coefficient.
Background
Before the garbage yard is established, a horizontal impermeable lining is needed to prevent garbage percolate from polluting underground soil and underground water.
At present, the impermeable structure mainly adopted in the market is a horizontal lining structure with an upper layer of an HDPE film and a lower layer of a compacted clay layer, wherein the HDPE film has extremely low permeability coefficient, and pollution liquid can not permeate almost, so that the impermeable structure is a main impermeable material.
In the prior art, HDPE films can only be imported, so that the HDPE films are high in cost and easy to damage in the use process.
Moreover, the prior horizontal lining structure does not adopt an HDPE film, so that the permeability coefficient of the horizontal lining structure is overlarge, the permeability resistance of a refuse dump cannot be met, and the underground soil and underground water are easy to pollute.
Disclosure of Invention
The invention aims to provide a horizontal anti-seepage structure with low seepage coefficient, and aims to solve the problem that in the prior art, a garbage field adopts the horizontal anti-seepage structure and the seepage coefficient is overlarge.
The invention is realized in such a way that the horizontal impermeable structure with low permeability coefficient comprises an upper impermeable layer and a lower impermeable layer positioned below the upper impermeable layer, wherein the upper impermeable layer is recessed downwards along the ground to form a first placing cavity, the lower impermeable layer is recessed along the direction deviating from the upper impermeable layer to form a second placing cavity, and the first placing cavity and the second placing cavity are arranged in an up-down opposite way; the upper impermeable layer comprises a plurality of sections of impermeable sections which are connected end to end, an included angle is formed between every two adjacent impermeable sections, and the included angle is gradually reduced along the direction from the middle part to the two ends of the upper impermeable layer.
Further, a penetration groove is formed at the joint of the adjacent seepage-proofing sections, and the penetration groove is arranged in a downward concave manner; the infiltration tank comprises a bottom tank wall and an enclosing wall, wherein the bottom tank wall covers the lower part of the enclosing wall, an upper opening is formed in the upper part of the enclosing wall, the upper opening is arranged along the direction from the end part of the upper impermeable layer to the middle part of the upper impermeable layer, and the bottom tank wall is obliquely arranged downwards.
Further, along the direction from the middle part to the two ends of the upper impermeable layer, the downward inclination amplitude of the bottom groove walls is gradually increased.
Further, a filter screen is arranged between the upper impermeable layer and the lower impermeable layer, the filter screen is provided with an upper end face facing the upper impermeable layer, a plurality of raised curved surfaces are formed on the upper end face of the filter screen, and a plurality of curved surfaces are irregularly arranged.
Further, the upper impermeable layer forms an opening hole, an opening plate is covered on the opening hole, the opening plate and the upper impermeable layer are oppositely and fixedly arranged, and the opening plate and the filter screen are vertically and oppositely arranged; the periphery of the opening plate is provided with a sealing layer.
Further, the lower impermeable layer forms a collecting part, and the second placing cavity is communicated with the collecting part; the collecting part is connected with a first water pumping pipe, and the first water pumping pipe is connected with an external water pump.
Further, the collecting part comprises a bottom plate and a plurality of side plates, the side plates are enclosed to form a bottom opening and a top opening, the bottom opening is covered by the bottom plate, the side plates are provided with stirring fans, and one end of the first water pumping pipe penetrates through the bottom plate.
Further, the side plate is provided with an exhaust port, and the stirring fan and the exhaust port are arranged in a right-facing way; the ground is provided with a methane processor, the methane processor is provided with a gas pipe, the gas pipe is provided with a collecting port, and the collecting port is communicated with the exhaust port.
Further, a plurality of fixing columns are arranged between the upper impermeable layer and the lower impermeable layer, the upper parts of the fixing columns are abutted against and fixed on the upper impermeable layer, and the lower parts of the fixing columns are abutted against and fixed on the lower impermeable layer; the top end surface of the fixing column is recessed downwards to form an accommodating space in an arc shape; the penetrating grooves and the top surfaces of the fixing columns are correspondingly arranged up and down; the fixed column is provided with a second water pumping pipe, one end of the second water pumping pipe is communicated with the accommodating space, and the other end of the water pumping pipe is connected with the water pump.
Further, the upper impermeable layer is provided with an upward upper end face, the ground is provided with a stop block, the stop block is provided with an inclined face close to the upper impermeable layer, and the inclined face of the stop block and the upper end face of the upper impermeable layer are arranged in a step shape; the garbage is transported through the garbage truck, the garbage truck is provided with a guide plate for discharging the garbage, when the garbage truck runs against the stop block, the guide plate is swung until the guide plate is attached to the inclined surface of the stop block, and the guide plate is in butt joint with the upper end surface of the upper impermeable layer and is arranged in a flush way.
Compared with the prior art, the horizontal anti-seepage structure with low seepage coefficient provided by the invention has the advantages that under the action of the upper anti-seepage layer, the primary seepage prevention is realized on the garbage seepage liquid, under the action of each anti-seepage section, the garbage seepage liquid is guided in a multi-level manner, the flow speed and the impact force of the garbage seepage liquid are reduced, the anti-seepage effect of the upper anti-seepage layer is improved, the garbage seepage liquid is concentrated, and the subsequent concentrated elimination is facilitated; under the action of the lower impermeable layer, the garbage seepage is further prevented, and the garbage seepage leaked by the upper impermeable layer is intensively removed; thus, the permeability coefficient is greatly reduced, the seepage-proofing requirement is met, and the anti-freezing and thawing-resistant anti-freezing plastic composite material is more corrosion-resistant and is not easy to damage.
Drawings
FIG. 1 is a schematic front view of a low permeability horizontal barrier structure provided by the present invention;
FIG. 2 is an enlarged schematic view of portion A of the horizontal permeation prevention structure with low permeation coefficient provided by the invention;
FIG. 3 is a schematic front view of the upper barrier layer of the low permeability horizontal barrier structure provided by the present invention;
FIG. 4 is an internal schematic view of a fixed column of a horizontal permeation prevention structure with low permeation coefficient provided by the invention;
FIG. 5 is a schematic left-hand view of a barrier of the present invention providing a horizontal permeation prevention structure with a low permeation coefficient;
FIG. 6 is a schematic front view of a low permeability horizontal barrier structure according to the present invention;
FIG. 7 is a schematic top view of a base plate of a horizontal permeation prevention structure with a low permeation coefficient according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The implementation of the present invention will be described in detail below with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-7, a preferred embodiment of the present invention is provided.
The horizontal permeation-preventing structure with low permeation coefficient is used for solving the problem that the permeation coefficient is too large when a horizontal permeation-preventing structure is adopted in a garbage field.
The horizontal impermeable structure with extremely low permeability coefficient comprises an upper impermeable layer 10 and a lower impermeable layer 20, wherein the lower impermeable layer 20 is positioned below the upper impermeable layer 10, the upper impermeable layer 10 is recessed downwards along the ground to form a first placing cavity, the lower impermeable layer 20 is recessed along the direction away from the upper impermeable layer 10 to form a second placing cavity, and the first placing cavity and the second placing cavity are arranged in an up-down opposite mode; the upper impermeable layer 10 comprises a plurality of impermeable sections 11, the impermeable sections 11 are arranged end to end, an included angle is formed between adjacent impermeable sections 11, and the included angle is gradually reduced along the direction from the middle part to the two ends of the upper impermeable layer 10.
The horizontal anti-seepage structure with extremely low seepage coefficient can perform primary seepage prevention on the garbage seepage under the action of the upper anti-seepage layer 10, and can guide the garbage seepage in multiple layers under the action of each seepage prevention section 11, reduce the flow speed and impact force of the garbage seepage, improve the seepage prevention effect of the upper anti-seepage layer 10, and facilitate the concentration of the garbage seepage and the subsequent centralized removal; under the action of the lower impermeable layer 20, the garbage seepage is further prevented, and the garbage seepage leaked by the upper impermeable layer 10 is intensively removed; thus, the permeability coefficient is greatly reduced, the seepage-proofing requirement is met, and the anti-freezing and thawing-resistant anti-freezing plastic composite material is more corrosion-resistant and is not easy to damage.
The main components of the upper impermeable layer 10 are curing agent, additive, water and soil, and the specific proportions are as follows: the mass of the curing agent is 1, the mass of the dry soil is 4, the additive is one thousandth of the sum of the curing agent and the mass of the dry soil, and the water is 55% of the sum of the curing agent and the mass of the dry soil.
The main components of the lower impermeable layer 20 are curing agent, additive, water and soil, and the specific proportions are as follows: the mass of the curing agent is 1, the mass of the dry soil is 4, the additive is one thousandth of the sum of the curing agent and the mass of the dry soil, and the water is 55% of the sum of the curing agent and the mass of the dry soil.
The joint of the adjacent seepage-proofing sections 11 is provided with a permeation groove 12, and the permeation groove 12 is arranged in a downward concave manner; the permeation tank 12 comprises a bottom tank wall and an enclosing wall, the bottom tank wall covers the lower part of the enclosing wall, an upper opening is formed at the upper part of the enclosing wall, and the bottom tank wall is obliquely arranged downwards along the direction from the end part to the middle part of the upper impermeable layer 10; under the effect of infiltration groove 12, be convenient for rubbish ooze liquid collection, simultaneously, infiltration groove 12 plays buffering deceleration effect, reduces rubbish ooze liquid flow impact to improve the prevention of seepage effect.
Furthermore, the width of each bottom groove wall which is inclined downwards gradually increases along the direction from the middle part to the two ends of the upper impermeable layer 10; thus, the buffer and deceleration effects of the bottom groove wall are gradually increased along the two ends of the upper impermeable layer 10 to the middle part of the upper impermeable layer 10, so that the garbage seepage flow in the middle part is greatly reduced, and the garbage seepage is conveniently collected and discharged.
A filter screen 70 is arranged between the upper impermeable layer 10 and the lower impermeable layer 20, the filter screen 70 is provided with an upper end face facing the upper impermeable layer 10, a plurality of raised curved surfaces 71 are formed on the upper end face of the filter screen 70, and the plurality of curved surfaces 71 are irregularly arranged; under the action of the filter screen 70, the garbage leachate is filtered.
In addition, under the action of the filter screen 70, the blocking of the first water pumping pipe 80 and the second water pumping pipe 44 is effectively avoided, so that the pumping of the garbage leachate is facilitated.
The upper impermeable layer 10 forms an opening hole, an opening plate is covered on the opening hole, the opening plate and the upper impermeable layer 10 are oppositely and fixedly arranged, and the opening plate and the filter screen 70 are oppositely arranged up and down; the periphery of the opening plate is provided with a sealing layer; thereby achieving cleaning of the filter screen 70.
In addition, the maintenance of the stirring fan 22, the first pumping pipe 80 and the second pumping pipe 44 is facilitated by the opening plate.
The lower impermeable layer 20 forms a collecting part 21, and the second placing cavity is communicated with the collecting part 21; the collecting part 21 is connected with a first water pumping pipe 80, and the first water pumping pipe 80 is connected with an external water pump; under the action of the collecting part 21, the garbage leachate is conveniently collected, and the first water suction pipe 80 is conveniently used for sucking the garbage leachate.
The collecting part 21 comprises a bottom plate 211 and a plurality of side plates, wherein the side plates are enclosed to form a bottom opening and a top opening, the bottom plate 211 covers the bottom opening, the side plates are provided with stirring fans 22, and one end of the first water pumping pipe 80 penetrates through the bottom plate 211; under the action of the stirring fan 22, the garbage seepage liquid is stirred, and the suction pipe is convenient for sucking the garbage seepage liquid.
The side plate is provided with an exhaust port 23, and the stirring fan 22 and the exhaust port 23 are arranged in a right opposite way; the biogas is conveniently discharged under the action of the stirring fan 22.
The bottom plate 211 is provided with an upward upper end surface, the upper end surface of the bottom plate 211 is provided with a plurality of arc-shaped strips 212, and the arc-shaped strips 212 are arranged in an arc-shaped surrounding manner along the outer side to the inner side of the bottom plate 211; each arcuate strip 212 serves as a guide for the waste liquid.
The last arcuate strip 212 extends to the first suction pipe 80 to facilitate suction of the first suction pipe 80 for removal of the landfill leachate.
The arc-shaped strips 212 are arranged in an arc-shaped arch manner, so that the arc-shaped strips 212 play a role in buffering garbage seepage and guiding at the same time; effectively reduces the moving impact force of garbage seepage.
The ground is provided with a methane processor which is provided with a gas pipe, the gas pipe is provided with a collecting port, and the collecting port is communicated with a gas outlet 23; the biogas processor is convenient for processing biogas and improves the utilization rate.
A plurality of fixing columns 40 are arranged between the upper impermeable layer 10 and the lower impermeable layer 20, the upper parts of the fixing columns 40 are abutted against and fixed with the upper impermeable layer 10, and the lower parts of the fixing columns 40 are abutted against and fixed with the lower impermeable layer 20; the fixing column 40 is provided with a top end surface 41 facing the upper impermeable layer 10, and the top end surface 41 of the fixing column 40 is downwards recessed to form an accommodating space in an arc shape; the infiltration tank 12 and the top end surface 41 of the fixed column 40 are arranged correspondingly up and down; the fixed column 40 is provided with a second water pumping pipe 44, one end of the second water pumping pipe 44 is communicated with the accommodating space, and the other end of the water pumping pipe is connected with a water pump.
Under the action of the fixing posts 40, the setting stability of the upper impermeable layer 10 is improved, and at the same time, the impermeable effect of the connection of the adjacent impermeable sections 11 is enhanced.
And, utilize the top face 41 of fixed column 40, be convenient for rubbish ooze liquid collection, be convenient for second drinking-water pipe 44 extraction rubbish ooze liquid, effectively avoid causing the pollution to soil underground, groundwater.
The upper impermeable layer 10 is provided with an upward upper end face, the ground is provided with a stop block 50, the stop block 50 is provided with an inclined face close to the upper impermeable layer 10, and the inclined face of the stop block 50 and the upper end face of the upper impermeable layer 10 are arranged in a step manner; the garbage is transported by the garbage truck 60, the garbage truck 60 has a guide plate 61 for discharging the garbage, when the garbage truck 60 runs against the stopper 50, the guide plate 61 is swung until the guide plate 61 is attached to the inclined surface of the stopper 50, and the guide plate 61 is abutted and flush with the upper end surface of the upper barrier layer 10.
Thus, under the action of the guide plate 61, the garbage is guided, so that the garbage truck 60 can conveniently discharge the garbage into the first placing cavity.
And, under the cooperation of deflector 61 and the up end of last barrier 10, when avoiding rubbish to discharge, the seepage is outside, guarantees that rubbish is placed on last barrier 10, plays the prevention of seepage effect.
The guide plate 61 has an inner end surface facing the stopper 50, and the inner end surface of the guide plate 61 is formed with a fixing groove 63 and a sliding groove 62, the sliding groove 62 is arranged in a long strip shape, and the sliding groove 62 communicates with the fixing groove 63; in this way, after the guide rod is attached to the stop block 50, the spring 52 pushes the push rod 53 to move transversely, so that the positioning block 54 moves to the sliding groove 62, and when the guide plate 61 is fixed relative to the stop block 50, the positioning block 54 moves to the fixing groove 63, so that the guide plate 61 and the stop block 50 are fixed relatively, and the garbage truck 60 can conveniently discharge garbage into the upper impermeable layer 10.
The stop block 50 is provided with a rear end face facing the garbage truck 60, the stop block 50 is provided with a push rod 53, the push rod 53 is horizontally arranged, the outer end of the push rod 53 is provided with a positioning block 54, the inner end of the push rod 53 is connected with a spring 52, the spring 52 is transversely arranged, the rear end of the spring 52 and the inner end of the push rod 53 are fixedly arranged, and the front end of the spring 52 is connected with a baffle plate 51; thus, when the garbage truck 60 runs to the position for discharging garbage, the baffle plate 51 is abutted, the spring 52 is in a compressed state, and the spring 52 pushes the push rod 53 to move transversely, so that the positioning block 54 moves out of the inclined surface of the stop block 50 and is fixed relative to the guide plate 61; thereby enhancing the discharge stability of the garbage truck 60 for discharging garbage.
The lower impermeable layer 20 is provided with a bottom end surface which is away from the upper impermeable layer 10, the bottom end surface of the lower impermeable layer 20 is provided with a reinforcing layer 30, and the reinforcing layer 30 is attached to the middle part of the bottom end surface of the lower impermeable layer 20; since the garbage leachate is substantially concentrated in the middle of the lower barrier layer 20, the middle of the lower barrier layer 20 is reinforced and impermeable by the reinforcing layer 30.
The reinforcing layer 30 mainly comprises curing agent, additive, water and soil, and the specific proportions are as follows: the mass of the curing agent is 1, the mass of the dry soil is 4, the additive is one thousandth of the sum of the curing agent and the mass of the dry soil, and the water is 55% of the sum of the curing agent and the mass of the dry soil.
The lower barrier layer 20 is downwardly arched so that the second receiving chamber has a larger area to facilitate collection of the waste liquid.
In addition, the lower impermeable layer 20 is arranged in such a way that the pressure bearing effect of the lower impermeable layer 20 is better, and the service life of the lower impermeable layer 20 is prolonged.
The fixing column 40 is internally provided with a plurality of first guide plates 42 and a plurality of second guide plates 43, wherein the first guide plates 42 are obliquely arranged downwards along the left-to-right direction, and the second guide plates 43 are obliquely arranged downwards along the right-to-left direction; along the top-down direction, the first guide plates 42 and the second guide plates 43 are arranged in a one-to-one staggered manner, and the garbage seepage flows from the top end surface 41 of the fixed column 40 to the first guide plates 42, flows to the second guide plates 43, and is finally discharged from the second water pumping pipe 44.
In this way, under the action of the plurality of first deflectors 42 and the plurality of second deflectors 43, the moving area of the garbage leachate is greatly enlarged, and the effect of decelerating and buffering is achieved.
One end of the first guide plate 42 is fixedly arranged with the fixed column 40, and the other end of the first guide plate 42 is movably arranged; thus, when the garbage leachate flows to the first guide plate 42, the other end of the first guide plate 42 abuts against the second guide plate 43 below under the action of gravity, so that the flow guiding of the garbage leachate is realized, and meanwhile, the flow velocity of the garbage leachate is reduced, and the impact force of the garbage leachate is reduced.
One end of the second guide plate 43 is fixedly arranged with the fixed column 40, and the other end of the second guide plate 43 is movably arranged; thus, when the garbage seepage liquid flows to the second guide plate 43, the other end of the second guide plate 43 is abutted against the first guide plate 42 below under the action of gravity, so that the flow guiding of the garbage seepage liquid is realized, and meanwhile, the flow speed of the garbage seepage liquid is reduced, and the impact force of the garbage seepage liquid is reduced.
The inside of the fixed column 40 is provided with a sloping plate, the upper end of the sloping plate extends to the top end surface 41 of the fixed column 40 and is fixedly arranged with the top end surface 41 of the fixed column 40, the lower end of the sloping plate is fixedly arranged with the first deflector 42, and the lower end of the sloping plate is obliquely arranged towards the center direction of the fixed column 40; thus, the inclined plate serves as a guide to facilitate the flow of the refuse to the first guide plate 42.
In addition, the inclined plate makes the first guide plate 42 set more firmly, so that the impact force is larger after the garbage seepage is avoided and the top end face 41 of the fixed column 40 is permeated, and the setting stability of the first guide plate 42 is affected.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. The horizontal anti-seepage structure with low seepage coefficient is characterized by comprising an upper anti-seepage layer and a lower anti-seepage layer positioned below the upper anti-seepage layer, wherein the upper anti-seepage layer is downwards recessed along the ground to form a first placing cavity, the lower anti-seepage layer is recessed along the direction away from the upper anti-seepage layer to form a second placing cavity, and the first placing cavity and the second placing cavity are vertically opposite to each other; the upper impermeable layer comprises a plurality of sections of impermeable sections which are connected end to end, an included angle is formed between every two adjacent impermeable sections, and the included angle is gradually reduced along the direction from the middle part to the two ends of the upper impermeable layer;
the joint of the adjacent seepage-proofing sections is provided with a seepage groove which is arranged in a downward concave manner; the infiltration tank comprises a bottom tank wall and an enclosing wall, the bottom tank wall covers the lower part of the enclosing wall, an upper opening is formed in the upper part of the enclosing wall, and the bottom tank wall is obliquely arranged downwards along the direction from the end part to the middle part of the upper impermeable layer;
the lower impermeable layer forms a collecting part, and the second placing cavity is communicated with the collecting part; the collecting part is connected with a first water pumping pipe which is connected with an external water pump;
the collecting part comprises a bottom plate and a plurality of side plates, the side plates are enclosed to form a bottom opening and a top opening, the bottom opening is covered by the bottom plate, the side plates are provided with stirring fans, and one end of the first water pumping pipe penetrates through the bottom plate;
the side plate is provided with an exhaust port, and the stirring fan and the exhaust port are arranged in a right opposite way; the ground is provided with a methane processor, the methane processor is provided with a gas pipe, the gas pipe is provided with a collecting port, and the collecting port is communicated with the exhaust port;
a plurality of fixing columns are arranged between the upper impermeable layer and the lower impermeable layer, the upper parts of the fixing columns are abutted against and fixed on the upper impermeable layer, and the lower parts of the fixing columns are abutted against and fixed on the lower impermeable layer; the top end surface of the fixing column is recessed downwards to form an accommodating space in an arc shape; the penetrating grooves and the top surfaces of the fixing columns are correspondingly arranged up and down; the fixed column is provided with a second water pumping pipe, one end of the second water pumping pipe is communicated with the accommodating space, and the other end of the water pumping pipe is connected with the water pump.
2. The low permeability horizontal barrier structure according to claim 1, wherein each of said bottom walls is inclined downwardly to a progressively increasing extent in the direction from the middle to the ends of said upper barrier layer.
3. The horizontal permeation preventing structure with low permeation coefficient according to claim 1 or 2, wherein a filter screen is provided between said upper permeation preventing layer and said lower permeation preventing layer, said filter screen has an upper end face facing said upper permeation preventing layer, said upper end face of said filter screen is formed with a plurality of convex curved faces, and a plurality of said curved faces are irregularly arranged.
4. A low permeability horizontal barrier structure according to claim 3 wherein said upper barrier layer defines an opening aperture, said opening aperture being covered with an opening panel, said opening panel being disposed in a fixed relationship with said upper barrier layer, said opening panel being disposed in a vertically opposed relationship with said filter screen; the periphery of the opening plate is provided with a sealing layer.
5. The horizontal permeation preventing structure with low permeation coefficient according to claim 1 or 2, wherein the upper permeation preventing layer has an upward upper end surface, a stopper is arranged on the ground, the stopper has an inclined surface close to the upper permeation preventing layer, and the inclined surface of the stopper and the upper end surface of the upper permeation preventing layer are arranged in a step shape; the garbage is transported through the garbage truck, the garbage truck is provided with a guide plate for discharging the garbage, when the garbage truck runs against the stop block, the guide plate is swung until the guide plate is attached to the inclined surface of the stop block, and the guide plate is in butt joint with the upper end surface of the upper impermeable layer and is arranged in a flush way.
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