CN109024707A - Pressure-bearing anti-seepage artificial field structure and construction method and application thereof - Google Patents
Pressure-bearing anti-seepage artificial field structure and construction method and application thereof Download PDFInfo
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- CN109024707A CN109024707A CN201810669366.6A CN201810669366A CN109024707A CN 109024707 A CN109024707 A CN 109024707A CN 201810669366 A CN201810669366 A CN 201810669366A CN 109024707 A CN109024707 A CN 109024707A
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 239000004575 stone Substances 0.000 claims abstract description 52
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 30
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 30
- 239000002689 soil Substances 0.000 claims abstract description 9
- 241000196324 Embryophyta Species 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000003344 environmental pollutant Substances 0.000 claims description 12
- 231100000719 pollutant Toxicity 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims description 5
- 235000013312 flour Nutrition 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 235000013339 cereals Nutrition 0.000 claims 1
- 238000009955 starching Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 abstract 1
- 235000013311 vegetables Nutrition 0.000 abstract 1
- 230000008569 process Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000001925 catabolic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 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
- E02D31/06—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 against corrosion by soil or water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Revetment (AREA)
Abstract
The invention discloses a pressure-bearing anti-seepage artificial site structure and a construction method and application thereof, wherein the artificial site structure comprises a first HDPE anti-seepage film, a first mattress pad layer, a vegetable soil crushed stone layer, a second HDPE anti-seepage film and a second mattress pad layer which are sequentially arranged from the bottom of a valley or a gully to the elevation direction of a site level; the deep foundation planning area on the second mattress layer is provided with a hard supporting layer, the area on the second mattress layer except the deep foundation planning area and the hard supporting layer are provided with a block stone layer, and the top surface of the block stone layer reaches the field level. The artificial field is constructed by a layer-by-layer laying method, and the construction application of the cast-in-place pile can be carried out on the artificial field structurally. The artificial site structure has strong bearing capacity and good anti-seepage effect, the construction method is simple and easy to operate, and the pile foundation construction application is carried out on the artificial site structure, so that the construction cost is reduced, the environment protection is facilitated, and the environmental pollution caused by the penetration of anti-seepage layers of various facility foundations constructed on the artificial site is avoided.
Description
Technical field
The present invention relates to field of engineering technology, and in particular to a kind of pressure-bearing antiseepage made sites structure and its construction method with
Using.
Background technique
The cubic metre of earth and stone is backfilled in mountain valley, coombe area, made sites build tailing dam, refuse landfill, metallurgical petrochemical industry
Base is the usual way of these enterprises, often due to basement process is improper, leads to plant area's slag percolate, the rubbish being currently running
Leakage or underground piping leakage occur for rubbish percolate, chemical pollution object, and the specific gravity of these pollutants is greater than 1, than water weight, in gravity
Under the action of, pollutant is constantly lower to be seeped, and reaches the bottom in mountain valley, coombe area, polluted underground water leads to periphery ecological environment
It is continuous worsening.In order to which these pollutant catabolic genes in a certain range, to be needed to most starting just to be laid with multilayer antiseepage coefficient height, change
Stability is good, ageing-resistant performance is strong, anti-root system of plant ability is strong, tensile strength is high, high ductibility, environment-protecting and non-poisonous antiseepage film
Material, HDPE antiseepage film are optimal selections.Very big, the artificial ground but the heavy type structures such as blast furnace of petrochemical enterprise are self-possessed
It is not able to satisfy the requirement of its bearing capacity, needs pile foundation to get to mountain valley, in coombe basement rock below, thus destroys
Before the antiseepage film that is laid with so that antiseepage film fails.To meet requirement of the top pile foundation to bearing capacity simultaneously, also to meet
Protection of the antiseepage film to environment, it is necessary to using a kind of engineering material of base soil bearing capacity higher that can provide in conjunction with antiseepage film
NEW TYPE OF COMPOSITE leakage preventing structure.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of pressure-bearing antiseepage made sites structure and its construction method with answer
With made sites' structural-load-carrying capacity of the present invention is strong, and good seepage-proof property, the construction method is simple to operation, after being conducive to
The construction application of phase various equipment carries out pile foundation perfusion in made sites' structure, and it is long to effectively reduce stake, construction efficiency
Height reduces construction cost, while being conducive to environment optimization, will not damage to the antiseepage film of setting, it is ensured that antiseepage film is prolonged resistance to
With playing a protective role to environment, avoid the various facility bring environmental pollutions built on made sites.
The technical solution of the present invention is as follows:
A kind of pressure-bearing antiseepage made sites' structure, it is characterised in that: from mountain valley or coombe bottom to the flat absolute altitude direction in field according to
It is secondary to be equipped with the native metalling of the first HDPE antiseepage film, the first mattress layer, element, the 2nd HDPE antiseepage film and the second mattress layer；
First mattress layer and the second mattress layer component are medium coarse sand or mountain flour slag；The native rubble layer component of element is element
The mixture of soil and rubble；
Second mattress layer is equipped with deep foundation planning region, and the deep foundation planning region is plant area's heavy equipment or constructs
Area is arranged in object；The deep foundation planning region is equipped with rigid supporting course, and the hardness supporting course is by being perfused with the gradation of cement slurry
Metalling is constituted；
Block stone is provided on region and the rigid supporting course on second mattress layer in addition to deep foundation planning region
Layer, the block diameter of block stone is 30cm~80cm, the flat absolute altitude in the block stone layer top surface to field in the block stone layer.
Pollutant monitoring pipe is equipped between first mattress layer and the native metalling of element；The pollutant monitoring pipe level is set
It sets.
The native metalling medium stone partial size 2cm~5cm of element, rubble total volume account for plain native metalling total volume 50%~
70%.
The hardness supporting course is made of the graded broken stone, PO42.5 cement and water of 2cm~5cm partial size, and each group is seperated
Product percentage are as follows: VGraded broken stone: VCement: VWater=40%:40%:20%.
Weeds miscellaneous tree has been removed in the mountain valley or coombe bottom；
The thickness of first mattress layer and the second mattress layer is 45cm~55cm；
The thickness of the native metalling of element is 7m~9m；
The thickness of the hardness supporting course is 8m~12m.
A kind of construction method of pressure-bearing antiseepage made sites' structure, which is characterized in that specifically includes the following steps:
1. removing weeds miscellaneous tree in mountain valley, the bottom of coombe, two sides, it is laid with the first HDPE antiseepage film；
2. being laid with the first mattress layer in the first HDPE antiseepage film；
3. the native rubble of the first mattress layer higher slice backfill element is laid with the native metalling of element, using strong rammer machinery to the element
Native metalling carries out strong rammer, eliminates sedimentation；
4. being laid with the 2nd HDPE antiseepage film on the native metalling of the element；
5. being laid with the second mattress layer in second layer antiseepage film；
6. dividing on second mattress layer has deep foundation planning region, the deep foundation planning region is plant area's heavy equipment
Area is set；Deep foundation planning region higher slice backfills graded broken stone, i.e., laying graded broken stone layer, the graded broken stone layer pass through
Grouting tube injection cement slurry obtains rigid supporting course；
7. 6. repeating step reaches target thickness to rigid supporting course；
8. region and step in step 6. second mattress layer in addition to deep foundation the planning region 7. hardness
Supporting course higher slice backfills block stone, i.e. laying block stone layer, the every 8m~10m thickness of block stone layer, using strong rammer machinery strong rammer,
Sedimentation is eliminated, until the block stone layer reaches the flat absolute altitude in field, that is, completes the construction of pressure-bearing antiseepage made sites' structure.
A kind of application of pressure-bearing antiseepage made sites' structure, which is characterized in that implement on the flat absolute altitude working face in the field
Bored concrete pile, the depth d of the rigid supporting course of pile end insertion are 1-3 times of pile diameter D；
Horizontal distance of the pile end away from the rigid supporting course side slope top is a, the hardness supporting course side slope
Slope foot angle is β, there is following relationship: a >=3.5D-d/tan β, and a >=2.5m.
The pile diameter D is one of 0.8m, 1.0m, 1.2m or 1.4m.
Technical effect of the invention are as follows:
In a kind of pressure-bearing antiseepage made sites' structure of the present invention, artificial hardness supporting course in the first HDPE antiseepage film and
On 2nd HDPE antiseepage film, bearing capacity is suitable with basement rock, bored concrete pile be not necessarily to penetrate antiseepage film to mountain valley, coombe basement rock in,
So that bored concrete pile pile foundation length is substantially shorter, pile is high-efficient, with low investment, proves by practice situation, using described artificial
After treatment of the earth, pile efficiency raising 50%, meanwhile, because bored concrete pile does not penetrate rigid supporting course, avoid pile foundation construction mistake
Stake end, which punctures, in journey destroys two layers of antiseepage film, and rigid supporting course bearing capacity is strong, and makes the heavy equipment in pile foundation in practical fortune
In, pile foundation will not be promoted to sink and puncture antiseepage film, the pollutant monitoring pipe in practice of construction by being arranged above antiseepage film
Water quality monitoring is carried out, the leakage situation of pollutant is not found, illustrates that two layers of antiseepage film is intact, two layers of HDPE antiseepage film is to can
The organic matter that can have leakage forms good horizontal leakage preventing structure, prevents pollution of the organic matter to underground water, soil.
The construction method of pressure-bearing antiseepage made sites' structure of the present invention is simple to operation, the made sites' knot built
Structure pressure-bearing antiseepage is conducive to later period application, pile foundation construction application is carried out in made sites' structure, and engineering is high-efficient, reduces
Construction cost, while being conducive to environment optimization, avoid the various facility bring environmental pollutions built on made sites.
Detailed description of the invention
Fig. 1: the process chart of weeds miscellaneous tree is removed in made sites' structure building of the present invention.
Fig. 2: made sites' structure building middle berth of the present invention is set up defences the process chart of water-bound.
Fig. 3: made sites' structure building middle berth of the present invention is set up defences the process chart of water-bound.
Fig. 4: the process chart of rigid supporting course is built in made sites' structure of the present invention.
Fig. 5: the details work of rigid supporting course is built in made sites' structure building of the present invention by graded broken stone layer
Sequence figure.
Fig. 6: the application process schematic diagram of pressure-bearing antiseepage made sites' structure of the present invention.
Fig. 7: schematic diagram is completed in the application of pressure-bearing antiseepage made sites' structure of the present invention.
In figure: 1- weeds miscellaneous tree；The first HDPE antiseepage film of 2-；The first mattress layer of 3-；The native metalling of 4- element；The 2nd HDPE of 5-
Antiseepage film；The second mattress layer of 6-；7- strong rammer is mechanical；8- graded broken stone layer；9- grouting tube；10- cement slurry；11- hardness holding force
Layer；12- block stone layer；13- flat absolute altitudes；14- bored concrete pile；15- pollutant monitoring pipe；A- pile end is away from rigid supporting course side
The horizontal distance of top of the slope；D- pile diameter；D- pile end is embedded in rigid bearing stratum depth；β-hardness supporting course Slope
Foot angle.
Specific embodiment
Below by way of specific embodiment, the present invention will be further described.
A kind of pressure-bearing antiseepage made sites' structure, from the mountain valley or coombe bottom for having removed weeds miscellaneous tree 1 to the flat absolute altitude in field
Direction is successively arranged the native metalling 4 of the first HDPE antiseepage film 2, the first mattress layer 3, element, the 2nd HDPE antiseepage film 5 and the second mattress
Layer 6；6 groups of first mattress layer 3 and the second mattress layer are divided into medium coarse sand or mountain flour slag, thickness 45-55cm；Plain 4 groups of metalling of soil
It is divided into the mixture of plain soil and rubble, element soil 4 medium stone partial size 2cm~5cm of metalling, rubble total volume accounts for plain native metalling 4
The 50%~70% of total volume.Thickness is 7-9m；Side is equipped with deep foundation planning region, deep foundation planning region on second mattress layer 6
For plant area's heavy equipment, area is set；Deep foundation planning region is equipped with rigid supporting course 11, and rigid supporting course 11 is by being perfused with cement
The graded broken stone layer 8 of slurry 10 is constituted, specifically, rigid supporting course 11 is graded broken stone, the PO42.5 by 2cm~5cm partial size
Cement and water composition, each component percent by volume are as follows: VGraded broken stone: VCement: VWater=40%:40%:20%, thickness 8-12m；Second
Block stone layer 12, block in block stone layer 12 are provided on region and rigid supporting course 11 on mattress layer 6 in addition to deep foundation planning region
The block diameter of stone is 30cm~80cm, the flat absolute altitude 13 in 12 top surface of block stone layer to field；First mattress layer 3 and the native metalling 4 of element it
Between be equipped with pollutant monitoring pipe 15；Pollutant monitoring pipe 15 is horizontally disposed.
The first HDPE antiseepage film and the 2nd HDPE antiseepage film are all made of high density polyethylene (HDPE) material, and thickness 4mm is
A kind of crystallinity is high, nonpolar thermoplastic resin, has good antiseptic property, electrical property, humidity resistance, leakproof
Energy, tensile strength are high.
Jiangxi Dexing Copper Mine engineering practice case
The construction of pressure-bearing antiseepage made sites' structure, its step are as follows:
It is laid with two layers of antiseepage film: the weeds miscellaneous tree 1 on mountain valley bottom impact Plain and two sides hillside is removed, using bull-dozer
The first HDPE antiseepage film 2 is laid with after place is flattened substantially；The whole audience is laid with thick first mattress of 50cm in the first HDPE antiseepage film 2
Layer 3, the first 3 groups of mattress layer is divided into mountain flour slag, for protecting the first HDPE antiseepage film 2 not destroyed by engineering machinery；First mattress
The native metalling 4 of layer 3 higher slices backfill element, element soil metalling 4 is for providing solid closely knit ground, virtual resurfacing thickness 80cm, 20t grade
Vibrated roller compacting, compactness reach 0.93, repeatedly the step, strong using strong rammer mechnisiam until cumulative thickness arrival 8m
It rams, completely rams entire place, eliminating sedimentation, especially place edge can not be squeezed around using strong rammer with road roller place；Paving
If the 2nd HDPE antiseepage film 5, so that forming the environment of relative closure between 2 layers of antiseepage film, extraneous rainwater can not be seeped into down anti-
It seeps between film.
Artificial hardness supporting course: being laid with the second mattress layer 6 in the 2nd HDPE antiseepage film 5, the second mattress layer 6 is 50cm thickness stone
Granulated slag, for protecting the 2nd HDPE antiseepage film 5 not destroyed by engineering machinery；According to plant area's general layout and structural design drawing, root
According to needing to be arranged deep foundation planning region (plant area's heavy equipment or structures setting area), in deep foundation Extent of Studies, the
Two mattress layers, 6 higher slice backfills graded broken stone, and graded broken stone layer 8 is arranged, and every level matches metalling 8 with a thickness of 1m, and with 20t grades
Vibrated roller compacting, compactness reach 0.96, are laid with grouting tube 9 in rubble with 1mx1m grid and infuse M30 cement slurry
10, form the rigid supporting course 11 that the cement of about 1m thickness is mixed with rubble；Step repeatedly, until the accumulative thickness of rigid supporting course 11
Degree reaches 8m, and rigid 11 side slope slope foot β of supporting course is 60 °；The region that setting deep foundation is not needed on second mattress layer 6 can be used
General block stone disposably backfills 8m high, block diameter 30cm~80cm of block stone, and intensity is not less than MU30, and with strong rammer mechnisiam strong rammer,
After block stone layer 12 and rigid supporting course 9 remain basically stable, continue to backfill the entire area carried out at block stone layer 12 between mountain valley with block stone
Covering disposably backfills 8m high using block stone every time, and with mechanical 5 strong rammers of strong rammer, repeatedly the step 3 time, it is accumulative backfill 24m after
12 top surface of block stone layer reaches the flat absolute altitude 13 in place.
Application in constructed pressure-bearing antiseepage made sites' structure:
It constructs on the working face pile foundation according to pile foundation construction figure, pile foundation uses diameter D=1.2m mechanical hole perfusion post
14, the long 28m of stake, stake end are embedded in depth d=3.0m, stake Edge Distance side slope top of the slope horizontal distance a in the rigid supporting course
For 3.5m, meet a >=3.5D-d/tan β=3.5x1.2-3/tan60 °=2.5m requirement.
Benefit: 14 characteristic load bearing capacity of bored concrete pile so constructed is 1800kN, is able to satisfy design requirement；Simultaneously stake it is long with
Directly through film be driven into mountain valley, coombe basement rock scheme compared to short 23m, characteristic load bearing capacity only reduces 200kN, only deep base
Plinth operating expenses saves 20%, obtains good economic benefit.It is supervised from the level contaminants monitoring pipe 15 between the antiseepage film of two sides
The effect of survey it is found that upper layer antiseepage film it is good every seeping effect, poisonous and harmful percolate is not detected, so that surrounding enviroment and underground water
It is effectively protected, obtains good environmental benefit.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of pressure-bearing antiseepage made sites' structure, it is characterised in that: successively from mountain valley or coombe bottom to the flat absolute altitude direction in field
Equipped with the first HDPE antiseepage film (2), the first mattress layer (3), the native metalling (4) of element, the 2nd HDPE antiseepage film (5) and the second mattress
Layer (6)；
First mattress layer (3) and the second mattress layer (6) group are divided into medium coarse sand or mountain flour slag；Described native metalling (4) group of element
It is divided into the mixture of plain soil and rubble；
Second mattress layer (6) is equipped with deep foundation planning region, and the deep foundation planning region is plant area's heavy equipment or constructs
Area is arranged in object；The deep foundation planning region is equipped with rigid supporting course (11), and the hardness supporting course (11) is by being perfused with cement
The graded broken stone layer (8) for starching (10) is constituted；
Block is provided on region and the rigid supporting course (11) on second mattress layer (6) in addition to deep foundation planning region
Rock layers (12), the block diameter of block stone is 30cm~80cm, block stone layer (12) top surface to the flat absolute altitude in field in the block stone layer (12)
(13)。
2. pressure-bearing antiseepage made sites' structure according to claim 1, which is characterized in that
Pollutant monitoring pipe (15) are equipped between first mattress layer (3) and the native metalling (4) of element；The pollutant monitoring pipe
(15) it is horizontally disposed with.
3. Ju pressure-bearing antiseepage made sites' structure described in claim 1, it is characterised in that: in the native metalling (4) of element
Ballast grain sizes 2cm~5cm, rubble total volume account for the 50%~70% of plain native metalling (4) total volume.
4. Ju pressure-bearing antiseepage made sites' structure described in claim 1, it is characterised in that: it is described hardness supporting course (11) be
It is made of the graded broken stone of 2cm~5cm partial size, PO42.5 cement and water, each component percent by volume are as follows: VGraded broken stone: VCement: VWater=
40%:40%:20%.
5. pressure-bearing antiseepage made sites' structure according to claim 1, which is characterized in that
Weeds miscellaneous tree has been removed in the mountain valley or coombe bottom；
The thickness of first mattress layer (3) and the second mattress layer (6) is 45cm~55cm；
The thickness of the native metalling (4) of element is 7m~9m；
The thickness of the hardness supporting course (11) is 8m~12m.
6. it is a kind of according to claim 1 in -5 pressure-bearing antiseepage made sites' structure described in any claim construction method,
It is characterized in that, specifically includes the following steps:
1. removing weeds miscellaneous tree (1) in mountain valley, the bottom of coombe, two sides, it is laid with the first HDPE antiseepage film (2)；
2. being laid with the first mattress layer (3) in the first HDPE antiseepage film (2)；
3. the native rubble of the first mattress layer (3) higher slice backfill element is laid with the native metalling (4) of element, using strong rammer mechanical (7) to institute
It states plain native metalling (4) and carries out strong rammer, eliminate sedimentation；
4. being laid with the 2nd HDPE antiseepage film (5) on the native metalling (4) of the element；
5. being laid with the second mattress layer (6) on second layer antiseepage film (5)；
6. dividing on second mattress layer (6) has deep foundation planning region, the deep foundation planning region is plant area's heavy equipment
Area is set；Deep foundation planning region higher slice backfills graded broken stone, i.e. laying graded broken stone layer (8), the graded broken stone layer
(8) rigid supporting course (11) are obtained by grouting tube (9) injection cement slurry (10)；
7. 6. repeating step reaches target thickness to rigid supporting course (11)；
8. 7. the hardness is held for region and step in step 6. second mattress layer (6) in addition to deep foundation planning region
Power layer (11) higher slice backfills block stone, i.e. laying block stone layer (12), the every 8m~10m thickness of block stone layer (12), using strong
Tamping machine tool (7) strong rammer eliminates sedimentation, until the block stone layer (12) reach the flat absolute altitude in field (13), that is, completes the pressure-bearing antiseepage
The construction of made sites' structure.
7. it is a kind of according to claim 1 in -5 pressure-bearing antiseepage made sites' structure described in any claim application, feature
It is, implements bored concrete pile (14) on the field flat absolute altitude (13) working face, bored concrete pile (14) the stake end is embedded in rigid holding force
The depth d of layer (11) is 1-3 times of bored concrete pile (14) diameter D；
Horizontal distance of bored concrete pile (14) the stake end away from described rigid supporting course (11) side slope top is a, the hardness supporting course
(11) side slope slope foot angle is β, there is following relationship: a >=3.5D-d/tan β, and a >=2.5m.
8. the application of pressure-bearing antiseepage made sites structure according to claim 7, which is characterized in that the bored concrete pile (14) is straight
Diameter D is one of 0.8m, 1.0m, 1.2m or 1.4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810669366.6A CN109024707A (en) | 2018-06-26 | 2018-06-26 | Pressure-bearing anti-seepage artificial field structure and construction method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810669366.6A CN109024707A (en) | 2018-06-26 | 2018-06-26 | Pressure-bearing anti-seepage artificial field structure and construction method and application thereof |
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| CN109024707A true CN109024707A (en) | 2018-12-18 |
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| CN201810669366.6A Pending CN109024707A (en) | 2018-06-26 | 2018-06-26 | Pressure-bearing anti-seepage artificial field structure and construction method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303892A (en) * | 2020-03-12 | 2020-06-19 | 河南霖牧农业技术有限公司 | Aluminum ash material for farmland transformation and use method thereof |
| CN111303891A (en) * | 2020-03-12 | 2020-06-19 | 河南霖牧农业技术有限公司 | Farmland transformation material and use method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3903742A1 (en) * | 1989-02-09 | 1990-08-16 | Frank Deponie Technik Gmbh | Embedding arrangement of seepage-water pipes in a landfill site |
| CN104895078A (en) * | 2015-05-18 | 2015-09-09 | 王正军 | Precast pile construction method focusing on end bearing force |
| CN205314137U (en) * | 2015-12-24 | 2016-06-15 | 北京高能时代环境技术股份有限公司 | A evaporation pond prevention of seepage protective screen system for coal industry strong brine |
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| DE3903742A1 (en) * | 1989-02-09 | 1990-08-16 | Frank Deponie Technik Gmbh | Embedding arrangement of seepage-water pipes in a landfill site |
| CN104895078A (en) * | 2015-05-18 | 2015-09-09 | 王正军 | Precast pile construction method focusing on end bearing force |
| CN205314137U (en) * | 2015-12-24 | 2016-06-15 | 北京高能时代环境技术股份有限公司 | A evaporation pond prevention of seepage protective screen system for coal industry strong brine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303892A (en) * | 2020-03-12 | 2020-06-19 | 河南霖牧农业技术有限公司 | Aluminum ash material for farmland transformation and use method thereof |
| CN111303891A (en) * | 2020-03-12 | 2020-06-19 | 河南霖牧农业技术有限公司 | Farmland transformation material and use method thereof |
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Application publication date: 20181218 |