CN110029690A - Leachate leakage detection collection structure and construction method thereof - Google Patents
Leachate leakage detection collection structure and construction method thereof Download PDFInfo
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- CN110029690A CN110029690A CN201910313732.9A CN201910313732A CN110029690A CN 110029690 A CN110029690 A CN 110029690A CN 201910313732 A CN201910313732 A CN 201910313732A CN 110029690 A CN110029690 A CN 110029690A
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- 238000001514 detection method Methods 0.000 title claims abstract description 55
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 65
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 65
- 238000004873 anchoring Methods 0.000 claims abstract description 42
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 239000004746 geotextile Substances 0.000 claims description 30
- 239000004698 Polyethylene Substances 0.000 claims description 27
- 229920006262 high density polyethylene film Polymers 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 21
- 239000004927 clay Substances 0.000 claims description 19
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 229910000278 bentonite Inorganic materials 0.000 claims description 8
- 239000000440 bentonite Substances 0.000 claims description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 8
- 229910052708 sodium Inorganic materials 0.000 claims description 8
- 239000011734 sodium Substances 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract description 3
- 239000002910 solid waste Substances 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 9
- 229940092782 bentonite Drugs 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011026 diafiltration Methods 0.000 description 1
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 229940080314 sodium bentonite Drugs 0.000 description 1
- 229910000280 sodium bentonite Inorganic materials 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
-
- 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
- E02D31/006—Sealing of existing landfills, e.g. using mining techniques
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Processing Of Solid Wastes (AREA)
- Revetment (AREA)
- Sewage (AREA)
Abstract
The invention relates to a leachate leakage detection and collection structure and a construction method thereof, which are suitable for a solid waste storage and disposal site which is provided with a multi-stage anchoring platform and is paved with a double-layer impermeable membrane. This filtration liquid leak hunting collection structure includes the anchor platform, supreme bottom geotechnological cloth, bottom HDPE geomembrane, top layer HDPE geomembrane and the top layer geotechnological cloth of having laid in proper order are followed to the anchor platform on, be equipped with leak hunting system and anchor system on the anchor platform between bottom HDPE geomembrane and top layer HDPE geomembrane, the anchor system is located leak hunting system's inboard. The leakage detecting blind ditch with permeability and drainage guide performance is designed in the middle of the double-layer artificial lining layer, the integrity of the impermeable layer is checked in different anchor platforms with different heights in a partition mode, whether the impermeable layer on each anchor platform is intact can be clearly judged, so that countermeasures can be taken in time, the side slope leakage liquid is effectively controlled, and the safety of the peripheral environment of a storage and disposal site and underground water is ensured.
Description
Technical field
The present invention relates to a kind of percolate leak detection collection structure and its construction method, suitable for possess multistage anchored platform and
It is laid with solid waste storage, the disposal site of two-layer barrier film.
Background technique
Regulation should set assisted drainage system using the landfill yard of double geosynthetics lining and catchment in GB 18598-2001
Well is used as the monitoring of leakage of upper artificial synthesized layer.The diafiltration between main impervious barrier and secondary impervious barrier is provided in DB52/865-2013
Composite earthwork drainage network is preferably used in liquid detection layers.The prior art is the effusion detection between main impervious barrier and secondary impervious barrier
It is detected in layer using composite earthwork drainage network.But the method is only applicable to that level-one anchored platform is only arranged in the basin of library
Storage, disposal site, to storage, the disposal site for possessing multistage anchored platform, effusion more than first order anchored platform is difficult to
To inspection and collect.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of percolate leak detection collection structure and its construction methods.
The present invention is achieved by the following technical programs:
A kind of percolate is hunted leak collection structure, including anchored platform, is successively equipped with from bottom to up in the anchored platform
Bottom geotextiles, bottom HDPE geomembrane, top layer HDPE geomembrane and top layer geotextiles, in bottom HDPE in the anchored platform
Leak detection system and anchor system are equipped between geomembrane and top layer HDPE geomembrane, the anchor system is located at the leak detection system
Inside.
The leak detection system includes leak detection french drain, and the bottom for french drain of hunting leak is equipped with filter pipe along longitudinal direction, is hunted leak in french drain
Gradation cobble has been filled on the upside of filter pipe, composite earthwork drainage network is equipped on french drain of hunting leak, and the composite earthwork drains
Net extends to the side far from anchor system.
The gradation cobble is wrapped in anti-filter geotextiles.
The end of the leak detection french drain is equipped with french drain plug.
The french drain plug includes the bulkhead concrete that ejectment PE is managed and is cast in around ejectment PE pipe, bulkhead concrete
Downside is equipped with bottom geotextiles, and ejectment PE pipe is connect with filter pipe.
The lower part of the bulkhead concrete is embedded with the pre-buried connection lock of bottom HDPE film, and it is pre- that top is embedded with top layer HDPE film
Bury connection lock；The pre-buried connection lock of bottom HDPE film and bottom HDPE geomembrane weld, the pre-buried connection lock of top layer HDPE film and top layer
The welding of HDPE geomembrane.
The anchor system includes anchoring groove and fills the backfill clay in anchoring groove, is backfilling clay in anchoring groove
Downside is successively equipped with composite earthwork drainage network and top layer HDPE geomembrane, composite earthwork drainage network and top layer HDPE from bottom to up
Geomembrane extends to the side far from leak detection system, and the top layer HDPE soil on the upside of top layer HDPE geomembrane and backfill clay
The welding of work film.
Sodium-based bentonite waterproof carpet is equipped on the backfill clay and between leak detection french drain and anchoring groove.
A kind of construction method of percolate leak detection collection structure, the construction method mainly includes following construction procedure:
(1) position of leak detection french drain and anchoring groove is determined on excavating smooth anchored platform, and carry out leak detection french drain and
Anchoring groove earthwork evacuation；
(2) it hunts leak after french drain and anchoring groove excavation, underearth work cloth is laid in anchored platform, then in anchoring groove
Upstream section is laid with bottom HDPE geomembrane；
(3) french drain plug is constructed: pouring bulkhead concrete to bottom in the bottom geotextiles of leak detection french drain end
The elevation of the pre-buried connection lock of HDPE film, and the pre-buried pre-buried connection lock of bottom HDPE film, continue to pour bulkhead concrete to ejectment
The elevation of PE pipe, and the installation of ejectment PE pipe is completed, then bulkhead concrete is poured to crest level and pre-buried top layer HDPE film
Pre-buried connection lock；
(4) will hunt leak the bottom HDPE geomembrane in french drain and the pre-buried connection lock weldering of the bottom HDPE film in french drain plug
It connects, completes the installment work of filter pipe, and it is connect with ejectment PE pipe, be then laid with anti-filter geotextiles, finally backfill gradation
Cobble；
(5) it is sequentially completed anchoring groove Upstream section composite earthwork drainage network and top layer HDPE geomembrane is laid with；
(6) it carries out anchoring groove and tract bottom HDPE geomembrane is laid with, then by itself and anchoring groove Upstream section bottom
The welding of HDPE geomembrane；
(7) laying for carrying out anchoring groove and tract composite earthwork drainage network and top layer HDPE geomembrane, has been laid with laggard
Row backfill clay compacting backfill, and it is laid with sodium-based bentonite waterproof carpet, then complete backfill clay upper and lower sides top layer HDPE geotechnique
The welding of film；
(8) top layer geotextiles are laid with, top layer geotextiles are equipped with packed soil pressure wall and carry out stacking pressure.
The spacing of anchoring groove and leak detection french drain is not less than 1m in the step (1).
The beneficial effects of the present invention are: storage, disposition to multistage anchored platform and setting double-layer artificial lining is possessed
Field proposes the design concept of " anchored platform leak detection french drain ".Double-layer artificial lining medium design one kind have permeability, lead
The leak detection french drain of row's property examines the integrity of impervious barrier to the anchored platform subregion of different elevations, can clearly judge that each anchoring is flat
Whether the impervious barrier on platform is intact, and to take counter-measure in time, and the effusion that will transmit through antiseepage film collects discharge processing,
Ensure that side slope effusion is controlled effectively, guarantees the safety of storage, disposal site surrounding enviroment and underground water.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the section enlarged diagram of percolate leak detection collection structure of the invention；
Fig. 3 is the enlarged cross sectional views of french drain plug of the invention；
Fig. 4 is the longitudinal section enlarged drawing of french drain plug of the invention.
In figure: 1- anchored platform, 2- leak detection french drain, 3- bottom geotextiles, 4- bottom HDPE geomembrane, 5- composite earthwork row
The network of rivers, 6- top layer HDPE geomembrane, 7- top layer geotextiles, 8- filter pipe, 9- graded broken stone, 10- anti-filter geotextiles, 11- anchoring
Ditch, 12- backfill clay, 13- sodium-based bentonite waterproof carpet, the packed soil pressure wall of 14-, the pre-buried connection lock of 15- bottom HDPE film, 16-
Ejectment PE pipe, 17- bulkhead concrete, the pre-buried connection lock of 18- top layer HDPE film.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
As shown in Figures 1 to 4, a kind of percolate leak detection collection structure of the present invention, including anchored platform 1, it is described
Bottom geotextiles 3, bottom HDPE geomembrane 4, top layer HDPE geomembrane 6 and top are successively equipped in anchored platform 1 from bottom to up
Layer geotextiles 7, be equipped between bottom HDPE geomembrane 4 and top layer HDPE geomembrane 6 in the anchored platform 1 leak detection system and
Anchor system, the anchor system are located at the inside of the leak detection system.When in use, multistage is excavated on the library basin of landfill yard
Anchored platform 1 is equipped with percolate leak detection collection structure in every grade of anchored platform 1, and using library basin as reference, anchor system is located at inspection
The inside of leakage system.
The leak detection system includes leak detection french drain 2, and the bottom of leak detection french drain 2 is equipped with filter pipe 8 along longitudinal direction, french drain of hunting leak
Gradation cobble 9 has been filled in the upside of filter pipe 8 in 2, has been equipped with composite earthwork drainage network 5, and the composite earth on french drain 2 of hunting leak
Work drainage network 5 extends to the side far from anchor system.It hunted leak, collected and guide to percolate by leak detection system, from
And whether the HDPE geomembrane detected in every level-one anchored platform 1 leaks.
The gradation cobble 9 is wrapped in anti-filter geotextiles 10.The percolate reverse osmosis immersed in filter pipe 8 is avoided to arrive
It hunts leak outside french drain 2.
The end of the leak detection french drain 2 is equipped with french drain plug.
The french drain plug includes ejectment PE pipe 16 and the bulkhead concrete 17 that is cast in around ejectment PE pipe 16, and plug is mixed
The downside of solidifying soil 17 is equipped with bottom geotextiles 3, and ejectment PE pipe 16 is connect with filter pipe 8.When in use, filter pipe 8 is PE pipe,
Size matches with ejectment PE pipe 16.
The lower part of the bulkhead concrete 17 is embedded with the pre-buried connection lock 15 of bottom HDPE film, and top is embedded with top layer HDPE
The pre-buried connection lock 18 of film；The pre-buried connection lock 15 of bottom HDPE film is welded with bottom HDPE geomembrane 4, the pre-buried connection of top layer HDPE film
Lock 18 is welded with top layer HDPE geomembrane 6.
The anchor system includes anchoring groove 11 and fills the backfill clay 12 in anchoring groove 11, is being returned in anchoring groove 11
The downside for filling out clay 12 is successively equipped with composite earthwork drainage network 5 and top layer HDPE geomembrane 6, composite earthwork draining from bottom to up
Net 5 and top layer HDPE geomembrane 6 extend to the side far from leak detection system, and top layer HDPE geomembrane 6 and backfill clay
The top layer HDPE geomembrane 6 of 12 upsides welds.
Sodium-based bentonite waterproof carpet 13 is equipped on the backfill clay 12 and between leak detection french drain 2 and anchoring groove 11.
When in use, sodium-based bentonite waterproof carpet 13 also is located between bottom HDPE geomembrane 4 and top layer HDPE geomembrane 6.
A kind of construction method of percolate leak detection collection structure, the construction method mainly includes following construction procedure:
(1) position of leak detection french drain 2 and anchoring groove 11 is determined on excavating smooth anchored platform 1, and it is blind hunt leak
11 earthwork evacuation of ditch 2 and anchoring groove；
(2) it hunts leak after french drain 2 and the excavation of anchoring groove 11, underearth work cloth 3 is laid in anchored platform 1, is then existed
11 Upstream section of anchoring groove is laid with bottom HDPE geomembrane 4；
(3) french drain plug is constructed: pouring bulkhead concrete 17 bottom of in the bottom geotextiles 3 of leak detection 2 end of french drain
The elevation of the layer pre-buried connection lock 15 of HDPE film, and the pre-buried connection lock 15 of pre-buried bottom HDPE film, continue to pour bulkhead concrete 17
It builds to the elevation of ejectment PE pipe 16, and completes the installation of ejectment PE pipe 16, then pour bulkhead concrete 17 to crest level simultaneously
The pre-buried pre-buried connection lock 18 of top layer HDPE film；
(4) will hunt leak the bottom HDPE geomembrane 4 in french drain 2 and the pre-buried connection lock 15 of bottom HDPE film in french drain plug
Welding, completes the installment work of filter pipe 8, and it is connect with ejectment PE pipe 16, is then laid with anti-filter geotextiles 10, finally returns
Fill out gradation cobble 9；
(5) it is sequentially completed 11 Upstream section composite earthwork drainage network 5 of anchoring groove and top layer HDPE geomembrane 6 is laid with；
(6) it carries out anchoring groove 11 and tract bottom HDPE geomembrane 4 is laid with, then by itself and 11 Upstream section bottom of anchoring groove
Layer HDPE geomembrane 4 welds；
(7) laying for carrying out anchoring groove 11 and tract composite earthwork drainage network 5 and top layer HDPE geomembrane 6, has been laid with
After carry out the backfill compacting backfill of clay 12, and be laid with sodium-based bentonite waterproof carpet 13, then complete backfill 12 upper and lower sides top of clay
The welding of layer HDPE geomembrane 6；
(8) top layer geotextiles 7 are laid with, top layer geotextiles 7 are equipped with packed soil pressure wall 14 and carry out stacking pressure.When in use, often
Grade riding track need to carry out packed 14 stacking pressure of soil pressure wall by design.
The spacing of anchoring groove 11 and leak detection french drain 2 is not less than 1m in the step (1).
In conclusion storage, disposal site proposition of the present invention to multistage anchored platform 1 and setting double-layer artificial lining is possessed
The design concept of " anchored platform leak detection french drain ".It is a kind of with permeability, guide in the medium design of double-layer artificial lining
French drain 2 of hunting leak can clearly judge in each anchored platform 1 integrity of 1 subregion of the anchored platform inspection impervious barrier of different elevations
Impervious barrier it is whether intact, to take counter-measure in time, and will transmit through antiseepage film effusion collect discharge processing, it is ensured that
Side slope effusion is controlled effectively, and guarantees the safety of storage, disposal site surrounding enviroment and underground water.
Embodiment:
The specification of bottom geotextiles 3 is 600g/m2, and the sodium bentonite blanket that specification is 4800g/m2 also can be used and replace
Bottom geotextiles 3.The caliber of ejectment PE pipe 16 and PE filter pipe 8 is DN200.The specification of top layer geotextiles 7 is 600g/m2.It is stifled
Head concrete 17 uses C20 concrete, and the length of the end brushing anti-corrosion material of french drain plug, french drain plug is not less than 1m.Draw
Arrange the lap of splice of the length not less than PE pipe fitting that PE pipe 16 exposes bulkhead concrete 17.The depth h of leak detection french drain 2 >=
The upside of 30cm, bottom width b >=20cm, PE filter pipe 8, which is staggered, 3 discharges into water hole, pitch-row 12cm.French drain 2 hunt leak along axis
Direction should be arranged not less than 1% longitudinal slope, and when excavating, its profile angle should meet the bending requirement of HDPE geomembrane, avoid by
HDPE geomembrane folding is bad.The thickness of bottom HDPE geomembrane 4 is not less than 1mm, and the thickness of top layer HDPE geomembrane 6 is not less than 2mm.
The height of packed soil pressure wall 14 in top layer geotextiles 7 is not less than 60cm, and width is not less than 70cm.The interior backfill of french drain 2 of hunting leak
Aggregate is advisable with gradation cobble 9, is also possible to graded broken stone, such as backfills graded broken stone, and sharp profile damage PE drainage should be avoided
Pipe 8.
Claims (10)
- The collection structure 1. a kind of percolate is hunted leak, it is characterised in that: including anchored platform (1), on the anchored platform (1) under It is supreme to be successively equipped with bottom geotextiles (3), bottom HDPE geomembrane (4), top layer HDPE geomembrane (6) and top layer geotextiles (7), on the anchored platform (1) between bottom HDPE geomembrane (4) and top layer HDPE geomembrane (6) be equipped with leak detection system and Anchor system, the anchor system are located at the inside of the leak detection system.
- The collection structure 2. percolate as described in claim 1 is hunted leak, it is characterised in that: the leak detection system includes leak detection french drain (2), the bottom of leak detection french drain (2) is equipped with filter pipe (8) along longitudinal direction, is filled on the upside of filter pipe (8) in leak detection french drain (2) Have gradation cobble (9), is equipped with composite earthwork drainage network (5) in leak detection french drain (2), and composite earthwork drainage network (5) Xiang Yuan Side from anchor system extends.
- The collection structure 3. percolate as claimed in claim 2 is hunted leak, it is characterised in that: the gradation cobble (9) is wrapped in In anti-filter geotextiles (10).
- The collection structure 4. percolate as claimed in claim 2 is hunted leak, it is characterised in that: the end of leak detection french drain (2) is set There is french drain plug.
- The collection structure 5. percolate as claimed in claim 4 is hunted leak, it is characterised in that: the french drain plug includes ejectment PE pipe (16) and it is cast in the bulkhead concrete (17) that ejectment PE manages (16) surrounding, the downside of bulkhead concrete (17) is equipped with bottom geotechnique Cloth (3), ejectment PE pipe (16) are connect with filter pipe (8).
- The collection structure 6. percolate as claimed in claim 5 is hunted leak, it is characterised in that: the lower part of the bulkhead concrete (17) It is embedded with the pre-buried connection lock of bottom HDPE film (15), top is embedded with the pre-buried connection lock of top layer HDPE film (18)；Bottom HDPE film Pre-buried connection lock (15) and bottom HDPE geomembrane (4) weld, the pre-buried connection lock of top layer HDPE film (18) and top layer HDPE geotechnique Film (6) connection.
- The collection structure 7. percolate as described in claim 1 is hunted leak, it is characterised in that: the anchor system includes anchoring groove (11) and fill the backfill clay (12) in anchoring groove (11), in anchoring groove (11) the downside of backfill clay (12) from down toward On be successively equipped with composite earthwork drainage network (5) and top layer HDPE geomembrane (6), composite earthwork drainage network (5) and top layer HDPE Geomembrane (6) extends to the side far from leak detection system, and on the upside of top layer HDPE geomembrane (6) and backfill clay (12) Top layer HDPE geomembrane (6) welding.
- The collection structure 8. percolate as claimed in claim 7 is hunted leak, it is characterised in that: on the backfill clay (12) and hunt leak Sodium-based bentonite waterproof carpet (13) are equipped between french drain (2) and anchoring groove (11).
- 9. a kind of construction method of percolate leak detection collection structure, it is characterised in that: the construction method mainly includes following applies Work step is rapid:(1) position of leak detection french drain (2) and anchoring groove (11) is determined on excavating smooth anchored platform (1), and is hunted leak French drain (2) and anchoring groove (11) earthwork evacuation；(2) after leak detection french drain (2) and anchoring groove (11) excavate, underearth work cloth (3) are laid on anchored platform (1), so Bottom HDPE geomembrane (4) are laid in anchoring groove (11) Upstream section afterwards；(3) french drain plug construct: leak detection french drain (2) end bottom geotextiles (3) on by bulkhead concrete (17) pour to The elevation of the pre-buried connection lock of bottom HDPE film (15), and the pre-buried pre-buried connection lock of bottom HDPE film (15), continue plug coagulation Native (17) are poured to the elevation of ejectment PE pipe (16), and complete the installation of ejectment PE pipe (16), then by bulkhead concrete (17) It pours to crest level and the pre-buried pre-buried connection lock of top layer HDPE film (18)；(4) will hunt leak the bottom HDPE geomembrane (4) in french drain (2) and the pre-buried connection lock of bottom HDPE film in french drain plug (15) it welds, completes the installment work of filter pipe (8), and it is connect with ejectment PE pipe (16), be then laid with anti-filter geotextiles (10), gradation cobble (9) finally are backfilled；(5) it is sequentially completed anchoring groove (11) Upstream section composite earthwork drainage network (5) and top layer HDPE geomembrane (6) is laid with；(6) anchoring groove (11) are carried out and tract bottom HDPE geomembrane (4) is laid with, then by itself and anchoring groove (11) Upstream section Bottom HDPE geomembrane (4) welding；(7) laying for carrying out anchoring groove (11) and tract composite earthwork drainage network (5) and top layer HDPE geomembrane (6), is laid with Backfill clay (12) compacting backfill is carried out after complete, and is laid with sodium-based bentonite waterproof carpet (13), then completes backfill clay (12) The welding of upper and lower sides top layer HDPE geomembrane (6)；(8) top layer geotextiles (7) are laid with, top layer geotextiles (7) are equipped with packed soil pressure wall (14) and carry out stacking pressure.
- 10. the construction method of percolate leak detection collection structure as claimed in claim 9, it is characterised in that: in the step (1) Anchoring groove (11) and the spacing of leak detection french drain (2) are not less than 1m.
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| CN201910313732.9A CN110029690B (en) | 2019-04-18 | 2019-04-18 | Percolate leakage detection and collection structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910313732.9A CN110029690B (en) | 2019-04-18 | 2019-04-18 | Percolate leakage detection and collection structure and construction method thereof |
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| CN110029690A true CN110029690A (en) | 2019-07-19 |
| CN110029690B CN110029690B (en) | 2024-03-19 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644585A (en) * | 2019-09-06 | 2020-01-03 | 中国一冶集团有限公司 | Construction method of leachate adjusting system |
| CN110804694A (en) * | 2019-11-15 | 2020-02-18 | 万宝矿产有限公司 | Biological heap leaching W solution ditch protection and leakage monitoring system |
| CN111502280A (en) * | 2020-05-11 | 2020-08-07 | 中铁城建集团第三工程有限公司 | Construction method for detecting water leakage area by novel tool |
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