CN208604642U - Refuse landfill field bottom leakage preventing structure - Google Patents
Refuse landfill field bottom leakage preventing structure Download PDFInfo
- Publication number
- CN208604642U CN208604642U CN201821198762.7U CN201821198762U CN208604642U CN 208604642 U CN208604642 U CN 208604642U CN 201821198762 U CN201821198762 U CN 201821198762U CN 208604642 U CN208604642 U CN 208604642U
- Authority
- CN
- China
- Prior art keywords
- layer
- film
- leakage preventing
- preventing structure
- laid
- 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)
- Revetment (AREA)
Abstract
The utility model belongs to refuse landfill field of engineering technology, specifically discloses a kind of anti-seepage effect better refuse landfill field bottom leakage preventing structure.The clay layer extended segment that the refuse landfill field bottom leakage preventing structure is extended to form by compacted cohesive soil layer along the surface of library slope basal layer, both antiseepage barrier can be formed on the basal layer of library slope, effectively enhance " library basin " effect of compacted cohesive soil layer, the reliability that bentonite blanket is connect with compacted cohesive soil layer can be increased again, to improve the antiseepage safety of the refuse landfill field bottom leakage preventing structure；Connect to forming film interconnecting piece with double matte HDPE film dislocation further through by double smooth surface HDPE films, on the one hand there is better anti-seepage effect, on the other hand there is stronger connection reliability, can effectively reduce film interconnecting piece and generate the avulsed possibility of excessive deformation due to by top rubbish gravity.
Description
Technical field
The utility model belongs to refuse landfill field of engineering technology, and in particular to a kind of leakage preventing structure.
Background technique
In conventional garbage landfill yard engineering, the type of refuse landfill field bottom leakage preventing structure is broadly divided into single-layer lining antiseepage
Structure, dual-layer lining leakage preventing structure and three kinds of compound lining leakage preventing structure；Wherein, single-layer lining leakage preventing structure mainly includes HDPE
Film and compacting loam；Dual-layer lining leakage preventing structure mainly includes the first HDPE film, Leachate site inspection layer and the second HDPE film；It is compound
Lining leakage preventing structure is mainly in " HDPE film+compacted cohesive soil " and " HDPE film+GCL bentonite blanket " two kinds of forms as representative.HDPE
Film is the coiled plastic material being made of HDPE, and HDPE is that a kind of crystallinity is high, nonpolar thermoplastic resin；HDPE film is also referred to as
Density polyethylene film with high, HDPE geomembrane, HDPE antiseepage film, English name are " High Density Polyethylene
Impermeable membrane"；GCL bentonite blanket is a kind of geosynthetics of antiseep, by the sodium base of high-expansion
Bentonite is filled between special composite earthwork cloth and non-woven fabrics, and the bentonite blanket made of needle point method can form many small
Fibre space, prevents bentonite clay particle from flowing to a direction, forms uniformly highdensity gluey waterproof when meeting water in blanket
Layer, effectively prevents the leakage of water.
Currently, field bottom leakage preventing structure most commonly seen in the refuse landfill built is compound lining leakage preventing structure, packet
Bottom seepage-control structure and library slope leakage preventing structure are included, the bottom seepage-control structure includes the compacted cohesive soil being laid on bottom storehouse basal layer
Layer and the double smooth surface HDPE films being laid on compacted cohesive soil layer, library slope leakage preventing structure includes being laid on the basal layer of library slope
At the position that bentonite blanket and the double matte HDPE films being laid on bentonite blanket, library slope basal layer and bottom storehouse basal layer connect
For slope foot, the bentonite blanket and compacted cohesive soil layer are overlapped in slope foot, and double smooth surface HDPE films and double matte HDPE films pass through
Horizontal joint is connected together.Wherein, it is the HDPE film of shiny surface that double smooth surface HDPE films, which refer to two sides all, and coefficient of friction is generally small
In 0.4；It is the HDPE film of rough surface that double matte HDPE films, which refer to two sides all, and coefficient of friction is generally higher than equal to 0.4.On the slope of library
It is the frictional force in order to increase HDPE film on the slope of library that double matte HDPE films, which are arranged, avoids coming down, it is ensured that library slope leakage preventing structure it is steady
It is fixed.
Using existing compound lining leakage preventing structure refuse landfill there are the problem of have: 1) only due to compacted cohesive soil layer
It is laid on bottom storehouse basal layer, slope foot and library slope is acted on without antiseepage, and overlapped that reliability is general with bentonite blanket；2) double light
Face HDPE film and double matte HDPE films are connected together by horizontal joint, under the upper Gravitative Loads for covering rubbish, bottom storehouse basis
Deformation it is larger, horizontal joint is easy to be torn, and is formed about leakage passage in bottom storehouse sideline.Problem above easily leads to rubbish infiltration
It is seeped into water table under filtrate, the underground water near pollution rubbish landfill yard, to be adversely affected to environment.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of bottom antiseepages of anti-seepage effect better refuse landfill field
Structure.
The technical scheme adopted by the utility model to solve the technical problem is as follows: refuse landfill field bottom leakage preventing structure, packet
Bottom seepage-control structure and library slope leakage preventing structure are included, the bottom seepage-control structure includes the compacted cohesive soil being laid on bottom storehouse basal layer
Layer and the double smooth surface HDPE films being laid on compacted cohesive soil layer, library slope leakage preventing structure includes being laid on the basal layer of library slope
Bentonite blanket and the double matte HDPE films being laid on bentonite blanket；The compacted cohesive soil layer extends along the surface of library slope basal layer
It is formed with clay layer extended segment, the clay layer extended segment is between bentonite blanket and library slope basal layer, the bentonite blanket
Lower end be connected with compacted cohesive soil layer；Double smooth surface HDPE films connect with double matte HDPE film dislocation is formed with film interconnecting piece,
The width of the film interconnecting piece is 30~50cm；It is slope foot at the position that library slope basal layer and bottom storehouse basal layer connect,
The film connecting portion in bottom storehouse basal layer upside and its horizontal distance between slope foot be 1.5~2m.
Further, the compactness of the bottom storehouse basal layer is more than or equal to 93%, the compactness of library slope basal layer
More than or equal to 90%, and the gradient of library slope basal layer is less than or equal to 1:2.
Further, the compactness of the compacted cohesive soil layer is more than or equal to 93%, the osmotic coefficient k of compacted cohesive soil layer≤
10-7cm/s。
Further, double matte HDPE films between the film interconnecting piece and slope foot are equipped with telescopic joint.
It is formed further, the telescopic joint is unrolled to fold by double matte HDPE films, telescopic joint includes at least three layers.
Further, the bottom seepage-control structure further include between bottom storehouse basal layer and compacted cohesive soil layer from the bottom up
Loaded filter, underground water guide layer and the compacted cohesive soil protective layer being successively laid with.
Further, the bottom seepage-control structure further includes protecting on the first film being laid on double smooth surface HDPE films
Layer and is protected the Leachate site guide layer being laid on the first film up-protective layer on the guide layer being laid on Leachate site guide layer
Layer.
Further, library slope leakage preventing structure further includes the second film up-protective layer being laid on double matte HDPE films
With the sandbag soil protective layer being laid on the second film up-protective layer；The first film up-protective layer and the second film up-protective layer are one
Body formula structure.
The beneficial effects of the utility model are: the clay extended to form by compacted cohesive soil layer along the surface of library slope basal layer
Layer extended segment, can both form antiseepage barrier on the basal layer of library slope, effectively enhance " library basin " effect of compacted cohesive soil layer, again
The reliability that bentonite blanket is connect with compacted cohesive soil layer can be increased, to improve the anti-of the refuse landfill field bottom leakage preventing structure
Seep safety；Connected by double smooth surface HDPE films with double matte HDPE film dislocation and be formed with film interconnecting piece, on the one hand had better
On the other hand anti-seepage effect has stronger connection reliability, can effectively reduce film interconnecting piece and produce due to by top rubbish gravity
The raw avulsed possibility of excessive deformation.By set telescopic joint, it can effectively enhance HDPE film and adapt to infrastructure
Adaptability when inhomogeneous deformation is generated under the rubbish gravity of top, so that it is guaranteed that the refuse landfill field bottom leakage preventing structure
Validity, further increase the antiseepage safety of refuse landfill, and then engineering risk is effectively reduced.
Detailed description of the invention
Fig. 1 is the implementation structural schematic diagram of the utility model；
Fig. 2 is the implementation structural schematic diagram of double smooth surface HDPE films and double matte HDPE film junctions；
In the figure, it is marked as bottom storehouse basal layer 10, loaded filter 11, underground water guide layer 12, compacted cohesive soil protective layer 13, compacting
Clay layer 14, double smooth surface HDPE films 15, the first film up-protective layer 16, Leachate site guide layer 17, guide layer up-protective layer 18, Ku Po
Basal layer 20, clay layer extended segment 21, bentonite blanket 22, double matte HDPE films 23, the second film up-protective layer 24, the protection of sandbag soil
Layer 25, slope foot 31, film interconnecting piece 32 and telescopic joint 33.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Referring to figs. 1 and 2, refuse landfill field bottom leakage preventing structure, including bottom seepage-control structure and library slope antiseepage knot
Structure, the bottom seepage-control structure include the compacted cohesive soil layer 14 being laid on bottom storehouse basal layer 10 and are laid on compacted cohesive soil layer 14
On double smooth surface HDPE films 15, library slope leakage preventing structure include the bentonite blanket 22 being laid on library slope basal layer 20 and be laid with
Double matte HDPE films 23 on bentonite blanket 22；The compacted cohesive soil layer 14 has been extended to form along the surface of library slope basal layer 20
Clay layer extended segment 21, the clay layer extended segment 21 are between bentonite blanket 22 and library slope basal layer 20, the bentonite
The lower end of blanket 22 is connected with compacted cohesive soil layer 14；Double smooth surface HDPE films 15 connect with double 23 dislocation of matte HDPE film to be formed with
Film interconnecting piece 32, the width of the film interconnecting piece 32 are 30~50cm；Library slope basal layer 20 intersects with bottom storehouse basal layer 10
It is slope foot 31 at the position connect, the film interconnecting piece 32 is located at the upside of bottom storehouse basal layer 10 and its level between slope foot 31
Distance is 1.5~2m.
The basis of bottom storehouse basal layer 10 and library slope basal layer 20 as the refuse landfill field bottom leakage preventing structure, need to be according to applying
Work code requirement handles bottom storehouse basal layer 10 and library slope basal layer 20, and makes 10 gentle transition of bottom storehouse basal layer to library slope
Basal layer 20；Generally, the compactness of bottom storehouse basal layer 10 is more than or equal to 93%, and the compactness of library slope basal layer 20 is more than or equal to
90%, and the gradient of library slope basal layer 20 is less than or equal to 1:2.
Main antiseepage barrier one of of the compacted cohesive soil layer 14 as the refuse landfill field bottom leakage preventing structure, is spread using clay
If forming, general laying depth is 75cm, it is desirable that compactness is more than or equal to 93%, osmotic coefficient k≤10 after compacting-7cm/s；
Before being laid with compacted cohesive soil layer 14, usually it is laid with compacted cohesive soil protective layer 13 and is protected.Clay layer extended segment 21 is compacted cohesive soil
Layer 14 is extended to form along the surface of library slope basal layer 20, can both be formed antiseepage barrier on library slope basal layer 20, effectively be increased
" library basin " effect of real clay layer 14 is suppressed, and the reliability that bentonite blanket 22 is connect with compacted cohesive soil layer 14 can be increased, from
And improve the antiseepage safety of the refuse landfill field bottom leakage preventing structure；The height of clay layer extended segment 21 is generally filled out according to rubbish
The size for burying field determines that effective antiseepage barrier can be formed on the basal layer of library slope by being subject to, and the area of refuse landfill is smaller
The height of clay layer extended segment 21 needs higher；It is preferred that the height of clay layer extended segment 21 is laid in 2m；In order to facilitate construction
Clay layer extended segment 21, usually by the transversal surface construction of clay layer extended segment 21 be it is trapezoidal, thickness is sequentially reduced from the bottom up, and
Long 75cm, the bottom length of being more than or equal in upper bottom edge is more than or equal to 100cm.
Double smooth surface HDPE films 15 connect with double 23 dislocation of matte HDPE film is formed with film interconnecting piece 32, on the one hand has more preferable
Anti-seepage effect, on the other hand have stronger connection reliability.Usually make double smooth surface HDPE films 15 and double matte HDPE films 23
It is weldingly connected；30~the 50cm of width for making film interconnecting piece 32 not only could be formed with effect connection, but also be unlikely to waste HDPE film mistake
It is more.Film interconnecting piece 32 is set to be in upside and its 1.5~2m of horizontal distance between slope foot 31 of bottom storehouse basal layer 10, in this way
It can be effectively reduced film interconnecting piece 32 and generate the avulsed possibility of excessive deformation due to by top rubbish gravity.
When generating inhomogeneous deformation under the rubbish gravity of top to effectively enhance HDPE film adaptation infrastructure
Adaptability, then as shown in Fig. 2, double matte HDPE films 23 between film interconnecting piece 32 and slope foot 31 are equipped with telescopic joint 33.It stretches
Casing coupling 33, which is unrolled to fold by double matte HDPE films 23, to be formed, and telescopic joint 33 includes at least three layers；When telescopic joint 33 is three layers, preferably
Make the width 30cm of telescopic joint 33.When infrastructure generates inhomogeneous deformation under the rubbish gravity of top, telescopic joint
33 can be unfolded, and avoid generating film interconnecting piece 32 and tear.
As a kind of preferred embodiment of the utility model, then as shown in Figure 1, the bottom seepage-control structure further includes in bottom storehouse
Loaded filter 11, underground water guide layer 12 and the compacted cohesive soil being successively laid with from the bottom up between basal layer 10 and compacted cohesive soil layer 14
Protective layer 13.Loaded filter 11 is generally laid with by fine grained filler, underground water guide layer 12 generally by block filler be laid with and
At, such as: using grit stone, cobblestone etc., water space was formed in underground water guide layer 12；Compacted cohesive soil protective layer 13
For protecting compacted cohesive soil layer 14, geotextile laying compacted cohesive soil protective layer 13 is generally used.
On the basis of the above, bottom seepage-control structure further includes the first film up-protective layer being laid on double smooth surface HDPE films 15
16, on the Leachate site guide layer 17 being laid on the first film up-protective layer 16 and the guide layer being laid on Leachate site guide layer 17
Protective layer 18.Library slope leakage preventing structure further includes the second film up-protective layer 24 being laid on double matte HDPE films 23 and is laid on the
Sandbag soil protective layer 25 on two film up-protective layers 24；The first film up-protective layer 16 and the second film up-protective layer 24 are integrated
Formula structure.First film up-protective layer 16 and the second film up-protective layer 24 are respectively used to protect double smooth surface HDPE films 15 and double matte
HDPE film 23 generally uses the first film of geotextile laying up-protective layer 16 and the second film up-protective layer 24.Leachate site guide layer 17
It is mainly used for water conservancy diversion rubbish sepage, Leachate site guide layer 17 is generally laid with by block filler, such as: use grit stone, goose
Cobble etc. is laid with；Guide layer up-protective layer 18 generally uses geotextile laying, for protecting to Leachate site guide layer 17.It is husky
The native protective layer 25 of bag is generally laid with by sandbag, the on the one hand protection as library slope leakage preventing structure, on the other hand can be to avoid
Form landslide.
Referring to figs. 1 and 2, the construction method of refuse landfill field bottom leakage preventing structure, it is above-mentioned any one for constructing
Kind refuse landfill field bottom leakage preventing structure；
The construction method includes the following steps:
Step 1 makes bottom storehouse basal layer 10 in refuse landfill field bottom application work bottom storehouse basal layer 10 and library slope basal layer 20
Gentle transition is to library slope basal layer 20, and the compactness of bottom storehouse basal layer 10 is more than or equal to 93%, the compacting of library slope basal layer 20
Degree is more than or equal to 90%, and the gradient of library slope basal layer 20 is less than or equal to 1:2；The step need to be required according to job specfication to bottom storehouse
Basal layer 10 and library slope basal layer 20 are handled；
Step 2, in the upside of bottom storehouse basal layer 10 construction compacted cohesive soil protective layer 13, in compacted cohesive soil protective layer 13
Upper laying compacted cohesive soil layer 14, and make compacted cohesive soil layer 14 extend to form clay layer along the surface of library slope basal layer 20 and extend
Section 21；It is laid with bentonite blanket 22 on library slope basal layer 20, clay layer extended segment 21 is made to be in bentonite blanket 22 and library slope basis
Between layer 20, and the lower end of bentonite blanket 22 is made to be connected with compacted cohesive soil layer 14；
Step 3 is laid with double smooth surface HDPE films 15 on compacted cohesive soil layer 14, double matte is laid on bentonite blanket 22
HDPE film 23；And make double smooth surface HDPE films 15 with double matte HDPE films 23 in the upside of bottom storehouse basal layer 10, and with 31 water of slope foot
Dislocation connects to forming film interconnecting piece 32 at the position that flat distance is 1.5~2m, and the width of the film interconnecting piece 32 is 30~50cm.
Preferably, the construction method of the refuse landfill field bottom leakage preventing structure further includes step 4；
Step 2 further includes loaded filter 11 being first laid on bottom storehouse basal layer 10, and be laid with underground water on loaded filter 11 and lead
Fluid layer 12, the compacted cohesive soil protective layer 13 are laid on underground water guide layer 12；
Step 3 further includes that double matte HDPE films 23 unroll between film interconnecting piece 32 and slope foot 31 to fold to be formed to stretch
Section 33；Telescopic joint 33 is generally located in the range of 31 1 meters of horizontal distance slope foot；
Step 4 is laid with the first film up-protective layer 16 on double smooth surface HDPE films 15, on 16 upper berth of the first film up-protective layer
If Leachate site guide layer 17, guide layer up-protective layer 18 is laid on Leachate site guide layer 17；On double 23 upper berths of matte HDPE film
If the second film up-protective layer 24, sandbag soil protective layer 25 is laid on the second film up-protective layer 24.
Need to guarantee previous step acceptance(check) before above each step construction.
Claims (8)
1. refuse landfill field bottom leakage preventing structure, including bottom seepage-control structure and library slope leakage preventing structure, the bottom seepage-control structure
Including the compacted cohesive soil layer (14) being laid on bottom storehouse basal layer (10) and the double smooth surfaces being laid on compacted cohesive soil layer (14)
HDPE film (15), library slope leakage preventing structure include the bentonite blanket (22) being laid on library slope basal layer (20) and are laid on swollen
Moisten double matte HDPE films (23) on native blanket (22)；It is characterized by: the compacted cohesive soil layer (14) is along library slope basal layer (20)
Surface extended to form clay layer extended segment (21), the clay layer extended segment (21) is in bentonite blanket (22) and library slope base
Between plinth layer (20), the lower end of the bentonite blanket (22) is connected with compacted cohesive soil layer (14)；Double smooth surface HDPE films (15)
Connecting and be formed with film interconnecting piece (32) with the dislocation of double matte HDPE films (23), the width of the film interconnecting piece (32) is 30~
50cm；It is slope foot (31) at the position that library slope basal layer (20) and bottom storehouse basal layer (10) connect, the film interconnecting piece
(32) it is located at the upside of bottom storehouse basal layer (10) and its horizontal distance between slope foot (31) is 1.5~2m.
2. refuse landfill field as described in claim 1 bottom leakage preventing structure, it is characterised in that: the bottom storehouse basal layer (10)
Compactness is more than or equal to 93%, and the compactness of library slope basal layer (20) is more than or equal to 90%, and library slope basal layer (20)
The gradient is less than or equal to 1:2.
3. refuse landfill field as described in claim 1 bottom leakage preventing structure, it is characterised in that: the compacted cohesive soil layer (14)
Compactness is more than or equal to 93%, osmotic coefficient k≤10 of compacted cohesive soil layer (14)-7cm/s。
4. refuse landfill field as described in claim 1 bottom leakage preventing structure, it is characterised in that: the film interconnecting piece (32) and slope
Double matte HDPE films (23) between foot (31) are equipped with telescopic joint (33).
5. refuse landfill field as claimed in claim 4 bottom leakage preventing structure, it is characterised in that: the telescopic joint (33) is by double rough
Face HDPE film (23), which unrolls to fold, to be formed, and telescopic joint (33) includes at least three layers.
6. the refuse landfill field bottom leakage preventing structure as described in claim 1,2,3,4 or 5, it is characterised in that: the bottom storehouse is anti-
Seep structure further include the loaded filter (11) being successively laid with from the bottom up between bottom storehouse basal layer (10) and compacted cohesive soil layer (14),
Underground water guide layer (12) and compacted cohesive soil protective layer (13).
7. refuse landfill field as claimed in claim 6 bottom leakage preventing structure, it is characterised in that: the bottom seepage-control structure also wraps
Include the first film up-protective layer (16) being laid on double smooth surface HDPE films (15), the infiltration being laid on the first film up-protective layer (16)
Drip liquid guide layer (17) and the guide layer up-protective layer (18) being laid on Leachate site guide layer (17).
8. refuse landfill field as claimed in claim 7 bottom leakage preventing structure, it is characterised in that: library slope leakage preventing structure also wraps
It includes the second film up-protective layer (24) being laid on double matte HDPE films (23) and is laid on the second film up-protective layer (24)
Sandbag soil protective layer (25)；The first film up-protective layer (16) and the second film up-protective layer (24) are an integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821198762.7U CN208604642U (en) | 2018-07-26 | 2018-07-26 | Refuse landfill field bottom leakage preventing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821198762.7U CN208604642U (en) | 2018-07-26 | 2018-07-26 | Refuse landfill field bottom leakage preventing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208604642U true CN208604642U (en) | 2019-03-15 |
Family
ID=65671059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821198762.7U Active CN208604642U (en) | 2018-07-26 | 2018-07-26 | Refuse landfill field bottom leakage preventing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208604642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678030A (en) * | 2018-07-26 | 2018-10-19 | 中国电建集团成都勘测设计研究院有限公司 | Refuse landfill field bottom leakage preventing structure |
-
2018
- 2018-07-26 CN CN201821198762.7U patent/CN208604642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678030A (en) * | 2018-07-26 | 2018-10-19 | 中国电建集团成都勘测设计研究院有限公司 | Refuse landfill field bottom leakage preventing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105464048B (en) | The impermeable composite geomembrane structure and construction method of weir body deformation can be adapted to automatically | |
| CN105672365B (en) | GCL vertical impermeable walls and preparation method thereof | |
| CN103835317A (en) | Refuse landfill seepage-proofing guide drainage system structure and laying method thereof | |
| CN207672630U (en) | A kind of garbage loading embeading two-layer barrier structure | |
| CN102002961A (en) | Impermeable gasket for bottom side slope of refuse landfill | |
| CN101936012B (en) | Impermeable membrane anchoring structure at middle part of side slope of abrupt and hard rock side slope single-layer impermeable structure | |
| CN109137997A (en) | Impervious lining system and construction method on bottom side slope of refuse landfill | |
| CN108678030A (en) | Refuse landfill field bottom leakage preventing structure | |
| CN208604642U (en) | Refuse landfill field bottom leakage preventing structure | |
| CN206090642U (en) | Protective surface layer is passed through in landfill's prevention of seepage | |
| CN111014226A (en) | Ton package and landfill of soluble waste salt | |
| CN206529760U (en) | High-speed railway embankment substrate salinized soil resists molten sunken construction | |
| CN208830372U (en) | Refuse landfill bottom storehouse and library slope antiseepage bridging arrangement | |
| CN101936013B (en) | Base rock side slope middle seepage preventing layer anchoring structure of steep and hard rock double-layer seepage preventing structure | |
| CN201817824U (en) | Antiseepage liner for bottom side slope of refuse landfill | |
| CN205444109U (en) | Can automatic adapt to composite geomembrane seepage prevention structure that weir body warp | |
| CN218562377U (en) | Side slope seepage prevention structure | |
| CN109056845A (en) | Refuse landfill bottom storehouse and library slope antiseepage bridging arrangement | |
| CN206128142U (en) | Be applied to landfill yard seepage prevention structure of mountain valley type landfill yard sludge sump solidification back ground | |
| CN202755438U (en) | Integrative structure with functions of anchoring, drainage and flood interception in refuse landfill | |
| CN201785778U (en) | Middle impermeable membrane anchorage of steep hard-rocky side slope in side slope single-layer impermeable structure | |
| CN206844170U (en) | Vertical volume expansion structure for refuse landfill | |
| CN206090583U (en) | A subregion dam structure for landfill | |
| CN201785776U (en) | Anchoring structure for bed-rock side slope middle impermeable layer of steep hard-rock double-layer impermeable structure | |
| CN207452923U (en) | Gather the seepage prevention of cofferdam structure of cut-pff wall and composite geo-membrane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |