CN209810895U - Horizontal drainage guide system of refuse landfill - Google Patents
Horizontal drainage guide system of refuse landfill Download PDFInfo
- Publication number
- CN209810895U CN209810895U CN201822123567.4U CN201822123567U CN209810895U CN 209810895 U CN209810895 U CN 209810895U CN 201822123567 U CN201822123567 U CN 201822123567U CN 209810895 U CN209810895 U CN 209810895U
- Authority
- CN
- China
- Prior art keywords
- filling layer
- drainage guide
- layer
- horizontal drainage
- filling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model belongs to environment geotechnical engineering field especially relates to a horizontal drainage guide system of refuse landfill. Horizontal drainage guide system includes: a trench; the multilayer filling layers are sequentially laid in the ditch from bottom to top and are formed by piling up crushed stones and elastomers, and the mass ratio of the elastomers in the multilayer filling layers from bottom to top is sequentially reduced; and the drainage guide pipe is horizontally laid in the filling layer at the lowest layer. The utility model discloses can improve the life-span of calandria, improve the leachate drainage effect.
Description
Technical Field
The utility model belongs to environment geotechnical engineering field especially relates to a horizontal drainage guide system and construction method thereof of refuse landfill.
Background
With the continuous rising of domestic garbage output in China, the treatment load of the garbage landfill is increased year by year, and great pressure is brought to the daily management and operation of the garbage landfill. Because the garbage landfill sites in China are mostly not buried in a subarea mode, the operation efficiency of a drainage system at the bottom of the garbage landfill sites is low, and the water level of the whole leachate inside the garbage landfill sites is high due to factors such as poor permeability of the garbage heap caused by long-term consolidation of the garbage heap and the like.
The above phenomena directly lead to a number of disadvantageous conditions: (1) the holes for gas circulation in the pile body are blocked, so that the efficiency of methane flowing into a gas well is low, the methane collection efficiency is low, and methane leakage is easily caused, so that fire and explosion accidents are caused; (2) the increase of the pore saturation directly causes the reduction of the shear strength of the garbage pile body, and the slope is easy to cause landslide accidents; (3) the permeability of the garbage pile is reduced, and a sufficient oxygen environment is not easy to form in an aerobic ventilation project, so that the aerobic repair project is slow to operate. Therefore, the leachate guiding and draining force of the refuse landfill is increased, the leachate level is reduced to the maximum extent, and the method has important significance for the efficient operation of anaerobic type and aerobic type landfill sites.
The horizontal drainage guide well is far superior to the vertical drainage guide well in the aspect of leachate drainage guide effect, but the cost for constructing the horizontal drainage guide well is relatively high after the landfill engineering of the garbage dump is finished; when the filling depth is larger, the construction difficulty of the horizontal drainage guide well is larger because the garbage pile body is easy to collapse. Therefore, the best construction period of the horizontal drainage guide well is to pre-embed when the garbage dump is filled.
In the course of implementing the present invention, the applicant has found that there are at least the following disadvantages in the prior art:
in the prior art, due to uneven settlement of a landfill site, a drainage guide pipeline in a horizontal drainage guide well is easily extruded by an upper layer garbage pile body and is easily damaged, and most horizontal drainage guide systems fail along with the increase of the operation year of the landfill site.
SUMMERY OF THE UTILITY MODEL
To the problem that above-mentioned prior art exists, the utility model provides a horizontal drainage guide system and construction method thereof of refuse landfill to improve leachate drainage guide effect.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
on the one hand, the utility model discloses a horizontal drainage guide system of refuse landfill, the system includes:
a trench;
the multiple layers of filling layers are sequentially laid in the ditch from bottom to top, the filling layers are formed by piling up broken stones and elastomers, and the mass ratio of the elastomers in the multiple layers of filling layers from bottom to top is sequentially reduced;
and the drainage guide pipe is horizontally laid in the filling layer at the lowest layer.
Preferably, the elastomer in the filler layer is scrap tire pieces.
Preferably, the material of the elastomer in the filling layer is one or a mixture of two of rubber and high density polyethylene material.
Furthermore, the filling layer is provided with two sides, and comprises a first filling layer positioned at the lower part and a second filling layer positioned at the upper part, and a filter layer is arranged between the first filling layer and the second filling layer.
Further, the upper surface of the drainage pipe and the top of the first filling layer are arranged in a flush mode.
Furthermore, in the first filling layer, the mass ratio of the elastic body to the broken stone is 20-35%, and the size of the elastic body is smaller than 3-4 times of the maximum diameter of the broken stone.
Furthermore, in the second filling layer, the mass ratio of the elastic body to the broken stone is 10% -15%, and the size of the elastic body is 2-3 times smaller than the maximum diameter of the broken stone.
Preferably, the filter layer is a geotechnical filter screen, and the two ends of the width of the geotechnical filter screen are anchored in the side wall of the ditch.
Furthermore, the circumferential surface of the drainage guide pipe is wrapped with geotextile.
On the other hand, the utility model also provides a construction method of the horizontal drainage guide system of refuse landfill, construction method includes:
digging a ditch in the garbage pile body;
laying a part of the lowest filling layer at the bottom of the ditch to form a construction foundation;
placing the guide and exhaust pipe on a construction foundation, and continuously laying the other part of the lowest filling layer on the construction foundation until the lowest filling layer is constructed;
and sequentially laying the rest filling layers on the lowest filling layer until the ditch is filled and leveled.
The utility model has the advantages that:
the utility model provides an among the horizontal drainage guide system of landfill, because the multilayer filling layer is laid in the irrigation canals and ditches by supreme down in proper order, the drainage guide pipe is laid to the bottom along the level in the filling layer, and the filling layer is piled up by rubble and elastomer and is formed, just so can make the filling layer have the advantage of great pore structure and high permeability to be favorable to the flow of gas and leachate, certain flexibility has again simultaneously, after covering the rubbish pile body above the filling layer, can form certain protection to the drainage guide pipe, make the drainage guide pipe be difficult to take place to destroy under the condition of loading.
In addition, because the mass ratio of the elastomer in the multilayer filling layer from bottom to top is reduced in proper order, this not only can make upper filling layer have sufficient intensity to the adaptation is to the support of rubbish landfill, can also make lower floor's filling layer have more flexibility than upper filling layer, under the effect of loading is being covered to the drainage guide pipe, the drainage guide pipe can be followed direction and the suitable removal of side direction, the drainage guide pipe is difficult to take place to destroy under this kind of shock-absorbing capacity's protection, further improve the life-span of drainage guide pipe, improve the leachate drainage guide effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a horizontal drainage guide system of a refuse landfill according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the arrangement of the filter layer in the embodiment of the present invention.
Detailed Description
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.
First, the embodiment of the utility model discloses horizontal drainage guide system of refuse landfill.
Fig. 1 is a schematic structural diagram of a horizontal drainage guide system of a refuse landfill according to an embodiment of the present invention, referring to fig. 1, the system includes:
a trench 1;
the multilayer filling layers are sequentially laid in the ditch from bottom to top and are formed by piling up crushed stones and elastomers, and the mass ratio of the elastomers in the multilayer filling layers from bottom to top is sequentially reduced;
and the drainage guide pipe 2 is horizontally laid in the filling layer at the lowest layer.
The embodiment of the utility model provides an among the horizontal drainage guide system of landfill, because the multilayer filling layer is laid in the irrigation canals and ditches by lower supreme in proper order, the drainage guide pipe is laid to the bottom along the level in the filling layer, and the filling layer is piled up by rubble and elastomer and is formed, just so can make the filling layer have the advantage of great pore structure and high permeability to be favorable to the long-term drainage guide of gas and leachate, certain flexibility has again simultaneously, after covering the rubbish heap body above the filling layer, can form certain protection to the drainage guide pipe, make the drainage guide pipe be difficult to take place to destroy under the condition of loading.
In addition, because the mass ratio of the elastomer in the multilayer filling layer from bottom to top is reduced in proper order, this not only can make upper filling layer have sufficient intensity to the adaptation is to the support of rubbish landfill, can also make lower floor's filling layer have more flexibility than upper filling layer, under the effect of loading is being covered to the drainage guide pipe, the drainage guide pipe can be followed direction and the suitable removal of side direction, the drainage guide pipe is difficult to take place to destroy under this kind of shock-absorbing capacity's protection, further improve the life-span of drainage guide pipe, improve the leachate drainage guide effect.
Preferably, the utility model discloses the elastomer can be abandonment tire piece, and abandonment tire piece source is extensive, and for the discarded object, under the more difficult condition of getting rubble material in the region periphery in more landfill place, uses abandonment tire piece effect to lead a part of arranging the material, can save freight and the required expense of filler purchase, has also realized the recycling of abandonment tire simultaneously.
Of course, the elastomer of the embodiment of the present invention may also be one or a mixture of two of rubber and high density polyethylene materials, etc., and the embodiment of the present invention does not limit this.
With reference to fig. 1, the filling layer of the embodiment of the present invention may be provided with two sides, including a first filling layer 3 located at the lower portion and a second filling layer 4 located at the upper portion, and a filter layer 5 is provided between the first filling layer 3 and the second filling layer 4.
Of course, the filling layer may also be actually set by the depth of the trench, and the embodiment of the present invention does not limit this.
Further, in the embodiment of the present invention, the upper surface of the drainage guide pipe 2 and the top of the first filling layer 3 are flush.
Furthermore, in the first filling layer 3, the mass ratio of the elastic body to the crushed stone is 20-35%, the size of the elastic body is less than 3-4 times of the maximum diameter of the crushed stone, and in the second filling layer 4, the mass ratio of the elastic body to the crushed stone is 10-15%, and the size of the elastic body is less than 2-3 times of the maximum diameter of the crushed stone.
Fig. 2 is the utility model discloses the arrangement of filter layer in the embodiment, combines fig. 2, the utility model discloses filter layer 5 of embodiment can be geotechnological filter screen, and the width both ends anchor of geotechnological filter screen is in the lateral wall of irrigation canals and ditches 1.
Furthermore, the side wall of the ditch 1 is provided with a groove 6, and after the two ends of the width of the geotechnical filter screen are embedded in the groove 6, the geotechnical filter screen is anchored by filling soil.
In order to prevent that the filling layer from directly being used in on row's of leading pipe 2, the embodiment of the utility model provides a still wrap up geotechnological cloth on row's of leading pipe 2 global, under the effect that does not influence the row of leading, further improve row's of leading pipe 2 life-span.
Additionally, the embodiment of the utility model provides a still provide the construction method of the horizontal drainage guide system of above-mentioned landfill, this construction method includes:
step 1: a trench is dug in the trash heap, the trench having a width and a depth and having integrity.
Step 2: laying a part of the lowest filling layer at the bottom of the ditch to form a construction foundation;
and step 3: placing the guide and drainage pipe on a construction foundation, and continuously laying the other part of the filling layer at the lowest layer on the construction foundation until the filling layer at the lowest layer is constructed, wherein in the step, the guide and drainage pipe can be wrapped by geotextile, and the filling layer at the lowest layer is filled to be close to the upper surface of the guide and drainage pipe;
and 4, step 4: and sequentially laying the rest filling layers on the lowest filling layer until the ditch is filled up, and laying a filtering layer between every two filling layers.
The construction method has the advantages of simple construction process, strong operability, lower requirements on site construction conditions, construction cost saving and construction quality guarantee.
Use the utility model discloses afterwards, the operation of drainage guide system can keep long-term nature, very big reduction landfill marsh gas and the safe risk that the leachate collection is not smooth to cause.
The following embodiments are preferred embodiments of the present invention, which are only used to facilitate the description of the present invention, and are not intended to limit the present invention in any form, and any person who knows commonly in the art can use the present invention to make local changes or modifications within the scope of the technical features of the present invention, and the technical features of the present invention are not separated from the present invention.
Claims (6)
1. A horizontal drainage system for a landfill, the system comprising:
a trench;
the multiple filling layers are sequentially laid in the ditch from bottom to top and are formed by piling up broken stones and elastomers;
and the drainage guide pipe is horizontally laid in the filling layer at the lowest layer.
2. The horizontal drainage system of a landfill site of claim 1, wherein the elastomer in the filling layer is waste tire chips.
3. The horizontal drainage system of a landfill site of claim 1, wherein the filling layer is provided with two sides, including a first filling layer at a lower part and a second filling layer at an upper part, and a filtering layer is arranged between the first filling layer and the second filling layer.
4. The horizontal drainage system of the landfill site of claim 3, wherein the upper surface of the drainage pipe is flush with the top of the first filling layer.
5. The horizontal drainage system of a landfill site of claim 3, wherein the filtering layer is a geotechnical filter screen, both ends of the width of which are anchored in the side wall of the trench.
6. The horizontal drainage system of claim 3, wherein the drainage pipe is wrapped with geotextile around the periphery thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822123567.4U CN209810895U (en) | 2018-12-18 | 2018-12-18 | Horizontal drainage guide system of refuse landfill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822123567.4U CN209810895U (en) | 2018-12-18 | 2018-12-18 | Horizontal drainage guide system of refuse landfill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209810895U true CN209810895U (en) | 2019-12-20 |
Family
ID=68869388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822123567.4U Active CN209810895U (en) | 2018-12-18 | 2018-12-18 | Horizontal drainage guide system of refuse landfill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209810895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208042A (en) * | 2020-02-07 | 2020-05-29 | 中国科学院武汉岩土力学研究所 | Device and method for inverting hydraulic parameters of unsaturated waste soil |
-
2018
- 2018-12-18 CN CN201822123567.4U patent/CN209810895U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208042A (en) * | 2020-02-07 | 2020-05-29 | 中国科学院武汉岩土力学研究所 | Device and method for inverting hydraulic parameters of unsaturated waste soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201588199U (en) | Anti-seepage structure for waste landfill handling project | |
| CN111119229A (en) | Multi-stage reinforced retaining wall comprehensive protection system suitable for large-scale waste slag yard and stability checking and calculating method and construction method thereof | |
| CN107366251A (en) | A kind of construction method of sludge lagoon place original position Ecosystem restoration system | |
| CN110029632B (en) | General industrial solid waste storage and disposal site structure and construction method thereof | |
| CN109469042B (en) | Anti-seepage storage yard field karst cave processing structure | |
| CN209810895U (en) | Horizontal drainage guide system of refuse landfill | |
| CN111014226A (en) | Ton package and landfill of soluble waste salt | |
| CN112523264B (en) | High-steep side slope seepage prevention system and laying method thereof | |
| CN219503430U (en) | Vertical partition structure of household garbage landfill | |
| CN211938371U (en) | Landfill gas guiding and discharging device | |
| CN103276717B (en) | The method of composite earthwork synthetic materials reinforcement cushion soft soil foundation | |
| CN112962680A (en) | Novel refuse landfill system | |
| CN110528538B (en) | Refuse landfill and construction method thereof | |
| CN107321752A (en) | A kind of sludge lagoon place Ecosystem restoration system in situ | |
| CN108580503B (en) | Large garbage pile slope shaping construction method | |
| CN202755438U (en) | Integrative structure with functions of anchoring, drainage and flood interception in refuse landfill | |
| CN114293596A (en) | Vertical seepage-proofing process for large garbage mountain | |
| CN211745870U (en) | Ecological restoration sealing greening bearing system for surface of sludge pit | |
| CN109500044B (en) | Horizontal drainage system of refuse landfill and construction method thereof | |
| CN210086182U (en) | General industrial solid waste storage and disposal site structure | |
| CN210288489U (en) | Refuse landfill based on coal gangue | |
| CN216640693U (en) | Flood interception mechanism for sealing landfill | |
| CN214657533U (en) | Double-composite lining and leachate guide and drainage system | |
| CN212896492U (en) | Landfill yard closing structure | |
| CN220239594U (en) | Exhaust and drainage device for refuse landfill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |