CN108755589A - A kind of antiseep of artificial lake structure and its construction method - Google Patents
A kind of antiseep of artificial lake structure and its construction method Download PDFInfo
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- CN108755589A CN108755589A CN201810658340.1A CN201810658340A CN108755589A CN 108755589 A CN108755589 A CN 108755589A CN 201810658340 A CN201810658340 A CN 201810658340A CN 108755589 A CN108755589 A CN 108755589A
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- 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
- E02D31/02—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 ground humidity or ground water
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Environmental Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Soil Sciences (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Botany (AREA)
- Agronomy & Crop Science (AREA)
- Hydrology & Water Resources (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of antiseep of artificial lake structure and its construction methods, including basal layer, drainage blanket, antiseepage film, protective layer and the top soil set gradually from the bottom to top, and the drainage blanket includes the weeper drain set gradually from the bottom to top and upper coarse sands layer.By adopting the above-described technical solution, compared with prior art, the present invention has the following advantages：Drainage blanket is arranged between basal layer and antiseepage film, and trepanning is not necessarily in antiseepage film, and underground water is expelled directly out lake body through drainage blanket；Since drainage blanket is provided entirely in below antiseepage film, while avoiding lakebed antiseepage film by underground water bursting, the integrality of antiseepage film is maintained, greatly strengthens its anti-seepage effect.Aquatic plants growth layer improves the ecological environment of man-made lake, and protective layer is avoided that destruction of the root system of plant to antiseepage film.The advantages that good seepage-proof property of the present invention, simple in structure, low cost, there is preferable promotional value.
Description
Technical field
The present invention relates to man-made lake construction applications, and in particular to a kind of antiseep of artificial lake structure and its construction method.
Background technology
The water loss of man-made lake, when by evaporation, second is that by leakage, the former can not avoid, and the latter then needs to pass through
Corresponding technological means is formulated to solve.Currently, basic infiltration coefficient is larger, the deeper geological conditions of velatively waterproof layer
Under, domestic man-made lake tunneling boring antiseepage generally uses cohesive soil shop fixtures and shore protection；Or the level using tunneling boring paving geomembrane
Anti-seepage method, the sandy gravel lid weight of geomembrane upper press cover 150mm~200mm thickness.
The natural leakage of man-made lake is advantageous the ecological balance.The application of clay can be greatly lowered nature and ooze
Leakage, but not exclusively barrier nature leakage, the bidirectional modulation of surface and ground water are guaranteed.In addition to this, clay also has
There is stronger filtration, purification ability, absorption is carried out to the inorganic phosphide in water body and can be protected in lakebed planting aquatic plants
Hold lake water water quality.Man-made lake tunneling boring antiseepage is using the shortcomings that cohesive soil shop fixtures, since the born head of lakebed is generally higher,
Therefore entire lake region large area antiseepage needs the sticky soil thickness of shop fixtures larger, and required cohesive soil earth volume can be caused big, cause soil
Material acquisition is difficult and cost is high.
Using the horizontal leakage preventing method for spreading geomembrane, lakebed often takes such as HDPE geotechnological for man-made lake tunneling boring antiseepage
The waterproof layer structure that film, SBS modified asphalt waterproof coiled materials, bentonite waterproof blanket and composite geo-membrane etc. ooze under thoroughly obstructing.Skill
Some ways simple and that mechanically directly continued to use waterproofing work, lead to lake water Water Eutrophication in art.Therefore,
The man-made lake of some projects is opposite with initial design theory, will not only beautify the environment, instead at the great dirt of living environment
Dye source.
Part township, village's man-made lake project, man-made lake periphery often have village, present situation domestic sewage in rural areas to discharge, are mostly
In line, sanitary sewage is unprocessed, pollutes surrounding enviroment；Present situation is discharged in conjunction with domestic sewage in rural areas, it can be by man-made lake periphery village
Sewage collecting is fallen, after integrated sewage treating apparatus is handled, drains into man-made lake, can be used as the daily moisturizing of man-made lake.It takes
The above treatment measures can be improved project neighboring area water resources comprehensive utilization rate, promote water environment comprehensive treatment；The disadvantage is that through place
Sewage after reason still contains a small amount of pollutant, can accelerate eutrophication, the aggravation lake water water quality deterioration of lake water.
To solve man-made lake lake water eutrophication, the planting aquatic plants in man-made lake make man-made lake double as artificial swamp.
Artificial swamp is by plantation with process performance is good, survival rate is high, water-resistance is strong, growth cycle is long, beautiful and with economic valence
The water plant of value forms a unique ecological environment, carries out purified treatment to sewage after processing, can further remove lake water
In organic pollution, while N, P and bacterium etc. are removed.In addition, by planting planting submerged plant and drift in man-made lake
Floating plant promotes Water Ecological Recovery, promotes water surface landscape effect, and thus the ecological environment of man-made lake is also improved, biological is more
Sample is protected.
The antiseepage of man-made lake tunneling boring is according to the horizontal leakage preventing method for spreading geomembrane, to prevent root system of plant from puncturing coating materials,
Lakebed is unable to planting aquatic plants, therefore can not solve the problems, such as the eutrophication of man-made lake lake water, water quality deterioration.Meanwhile by
In the lower support layer of spread geomembrane, level of ground water has periodic lifting, can be made during level of ground water rises
At geomembrane by underground water bursting.
Chinese patent notification number CN203755230U, the day for announcing are August in 2014 6, entitled " the Northwest's landscape lake
The patent of invention of middle of a lake area water storage Seepage control structure ", which disclose a kind of the Northwest's landscape lake middle of a lake area water storage antiseepage structures
It makes, including original soil rammed layer, medium-sand seam, waterproof layer, middle sand laminate layer and the gravel layer set gradually from the bottom to top.The structure
Although having good water storage anti-seepage effect, easy for construction, price economy, due to underground water below the geomembrane in waterproof layer
There is periodic lifting in position, geomembrane can be caused by underground water bursting during level of ground water rises, therefore, it is necessary to design
One kind can be suitably used for being highly permeable layer in lake region, can meet the requirement of lake region tunneling boring antiseepage, and be avoided that lakebed geotechnique
The leakage preventing structure of underground water bursting under film envelope.
Invention content
To solve the problems, such as that geomembrane is carried by underground water bursting, the present invention in existing antiseep of artificial lake construction in background technology
Supply a kind of antiseep of artificial lake structure, specific technical solution as follows.
A kind of antiseep of artificial lake structure, including the basal layer, drainage blanket, antiseepage film, the protective layer that set gradually from the bottom to top
And top soil, the drainage blanket include the weeper drain set gradually from the bottom to top and upper coarse sands layer.
Differential settlement can inevitably occur for ground, if without coarse sand bed course, in decanting zone, the antiseepage film of range will appear drawing
Stress, antiseepage film may be made leakage preventing structure partial failure, lake region caused to leak by drawing crack.
As a result, by the way that upper coarse sands layer is arranged below the antiseepage film, it may make antiseepage film uniform force, avoid tensile stress
It is damaged.Coarse sand bed course gross area within the scope of lake region is laid with；Coarse sand bed course infiltration coefficient is high, is used for lake region range
Interior seepage in underground imports weeper drain, balanced groundwater pressure, avoids the occurrence of basal layer (other than weeper drain range) locally
Lower water head is higher, so as to cause the local bulge of impervious barrier (two cloth, one film) even by bursting.
In addition, the drainage blanket is arranged between basal layer and antiseepage film, trepanning is not necessarily in antiseepage film, underground water is through draining
Weeper drain in layer is expelled directly out lake body, avoids antiseepage film by underground water bursting；Since weeper drain is integrally located at antiseepage
Below film, the integrality of antiseepage film is maintained, its anti-seepage effect is greatly strengthened.
The aquatic plants growth layer so that in man-made lake can planting aquatic plants, allow man-made lake double as artificial swamp.People
Work wetland is by plantation with process performance is good, survival rate is high, water-resistance is strong, growth cycle is long, beautiful and with economic value
Water plant, form a unique ecological environment, can further remove the organic pollution in lake water, at the same to N, P and
Bacterium etc. is removed, and keeps lake water water quality.In addition, aquatic by planting planting submerged plant and fluitante promotion in man-made lake
State reparation promotes water surface landscape effect, and thus the ecological environment of man-made lake is also improved, diversity of organism is protected
Shield.The protective layer is avoided that destruction of the root system of plant to antiseepage film geomembrane, has good seepage-proof property, simple in structure, cost
Low advantage has preferable promotional value.
Preferably, the weeper drain includes the perforated pipe, boulder bed and nonwoven layer set gradually from inside to outside, and
Coarse sands layer in nonwoven layer side and lower section is set.
Coarse sands layer in nonwoven layer side and lower section is set, coordinates the upper coarse sands layer above weeper drain, by non-woven fabrics
Layer wraps comprehensively, ensure that nonwoven layer will not avoid weeper drain structure division from failing by drawing crack.Further, since coarse sand
Layer infiltration coefficient is big, and seepage flow is very fast in underground water coarse sands layer, therefore utilizes coarse sands layer by the underground water within the scope of entire man-made lake
Import weeper drain, it can be ensured that ground water drainage it is unobstructed；Meanwhile coarse sands layer also carried out underground water as filtration supports
Filter, avoid the hole of cobble gap, perforated pipe from being blocked by sundries, it is ensured that drainage channel it is unobstructed；It is prevented in addition, coarse sands layer also has
The effect that nonwoven layer is punctured by sharp object.The nonwoven layer also has drainage for separating boulder bed and coarse sands layer
Effect.The boulder bed because between cobble gap it is larger, as the drainage channel of french drain, there is good drainage effect；Work as underground
When water water percolating capacity is larger, boulder bed can also save more infiltration, therefore can play the role of buffering.When groundwater yield compared with
When big, to prevent the channel drainage load that cobble backfills excessive, therefore the perforated pipe is added to improve the draining of weeper drain
Efficiency；The perforated pipe added greatly reduces the cross dimensions of french drain, reduces the cutting depth of ground, saves french drain dosage, improves
Its construct feasibility and economic and practical.
Preferably, the weeper drain includes main weeper drain and time weeper drain, and the main weeper drain is along man-made lake
Long axis direction is arranged, and the secondary weeper drain is connected to main weeper drain.
Main weeper drain and time weeper drain cooperate, and covering positive lake region can collect underground water to the greatest extent.
Preferably, it is equipped with main perforated pipe in the main weeper drain, is worn equipped with time perforated pipe, described time in secondary weeper drain
The discharge outlet of the main perforated pipe connections of Kong Guanyu or secondary perforated pipe is located above main perforated pipe.
When groundwater yield is larger, to prevent the channel drainage load that cobble backfills excessive, therefore adds primary and secondary and wear
Hole pipe is to improve the drainage efficiency of primary and secondary weeper drain.Secondary perforated pipe is not connected to directly with main perforated pipe, but by secondary perforated pipe
End (discharge outlet) ride over above main perforated pipe, the water of secondary perforated pipe is discharged to by its discharge outlet above main perforated pipe, then
Hole through corresponding position on main perforated pipe enters main perforated pipe and is discharged.Such design not only ensure that primary and secondary weeper drain
Drainage efficiency, also simplified construction needed for component (eliminating the connecting component between primary and secondary perforated pipe), reduce and be constructed into
This, reduces construction workload and difficulty of construction.
Preferably, the secondary weeper drain is equipped with multigroup, and the spacing between two adjacent secondary weeper drain groups is 20-
40m。
Spacing between two adjacent secondary weeper drain groups is too narrow, then secondary weeper drain quantity is excessive, causes cost unrestrained
Take；Spacing between two adjacent secondary weeper drain groups is too wide, then it cannot be guaranteed that its drainage effect that catchments.
Preferably, the secondary weeper drain is consistent with the crest level of main weeper drain, the bottom elevation of the secondary weeper drain
Higher than the bottom elevation of main weeper drain.
Since underground water imports main weeper drain by numerous secondary weeper drains, because the circulation of this weeper drain is less than master
The bottom elevation of secondary weeper drain, is set higher than the bottom elevation of main weeper drain by weeper drain, and such design can reduce low
The cutting depth of ground improves construction feasibility and economic and practical；Further, since through-hole pipe is arranged in french drain center,
The bottom elevation of secondary weeper drain is set higher than to the bottom elevation of main weeper drain so that the height of secondary through-hole pipe is higher than main logical naturally
Kong Guan is smoothly collected to main through-hole pipe with the water in bowel frequency through-hole pipe.
Preferably, the angle A between the main weeper drain and secondary weeper drain is 60-90 degree.
If primary and secondary weeper drain is vertical, the horizontal length of secondary weeper drain is smaller, more economical；Primary and secondary weeper drain it
Between angle A be less than 90 degree flow generation convection current that then can avoid primary and secondary french drain.
Preferably, the protective layer includes coarse sand bed course and the concrete precast block layer above coarse sand bed course.
Preferably, the concrete precast block layer is spliced by several right hexagonal steel-concrete prefabricated section layers.
Preferably, in drainage blanket construction, the perforated pipe includes main perforated pipe and time perforated pipe, and the secondary perforated pipe
Discharge ends ride over the top of main perforated pipe.
Preferably, the antiseep of artificial lake structure further includes that the small-scale sewage integrated treatment being arranged near man-made lake is set
Standby, the water outlet of the small-scale sewage integrated equipment for wastewater treatment is connect with the man-made lake.
Purified treatment of the sewage through top soil of small-scale sewage integrated equipment for wastewater treatment discharge, further removes lake water
In organic pollution, effectively supplement man-made lake water resource.
Preferably, the secondary weeper drain is distributed in the both sides of main weeper drain.
Preferably, the antiseepage film is spliced by two cloth, one membranous type composite geo-membrane, and is spliced width and be more than 35cm.
Preferably, two cloth, one membranous type composite geo-membrane is 100-500g/m2。
Preferably, the gradient of the weeper drain is 0.5 ‰ -1 ‰, and weeper drain is tilted down along drainage direction.
Preferably, the main perforated pipe caliber is 100-200mm, and the secondary perforated pipe caliber is 75-175mm.
Preferably, on the main perforated pipe and time perforated pipe, 6-10 hole is distributed with along its circumference in each section, perforation
Aperture is 10-30mm, and spacing is 80-150mm between section of perforating.
Preferably, the support layer is closely knit, smooth, and compactness is not less than 0.93, and its surface is without tree root, reed and rubble
The protrusions such as wedge angle.
Preferably, the coarse sand bed course thickness 100-200mm, the concrete precast block thickness 50-100mm.
Preferably, the coarse sand particle size range 0.5mm-2mm described in coarse sand bed course, granule content of the grain size more than 0.5mm are super
Cross the 50% of full weight.
Preferably, the original place soil of the concrete precast block upper berth thickness 100-200mm, rejects tree root, reed and broken in soil
Shi Hou, as aquatic plants growth layer.
The present invention also provides a kind of construction methods of antiseep of artificial lake structure, include the following steps：
The first step, basal layer construction：Clear base processing is carried out to lakebed basal layer, and digs out ditch on basal layer；
Second step, drainage blanket construction：The coarse sands layer in the case where the bottom of above-mentioned ditch is laid with, is then placed in non-woven fabrics, and in nonwoven
Paving guanovulite forms boulder bed inside cloth, and non-woven fabrics both sides are laid with side coarse sands layer so that non-woven fabrics is by cobble and basal layer, cobble
Layer is under, side coarse sands layer separates；When boulder bed paving is filled to precalculated position, it is put into perforated pipe, paving is then proceeded to and fills out；Work as boulder bed
When paving is filled to concordant at the top of basal layer, non-woven fabrics is closed, forms weeper drain；
Third walks, upper coarse sands layer construction：Upper coarse sands layer is laid at the top of basal layer and at the top of weeper drain；
4th step, antiseepage film construction：It is laid with antiseepage film above upper coarse sands layer；
5th step, protective layer construction：It is laid with coarse sand bed course first in antiseepage film, is then laid with coagulation on coarse sand bed course
Native prefabricated section layer；
6th step, top soil construction：Earth material is laid on concrete precast block layer as top soil.
As a result of above technical scheme, compared with prior art, the present invention has the following advantages：
Drainage blanket is arranged between basal layer and antiseepage film, and trepanning is not necessarily in antiseepage film, and underground water is directly arranged through drainage blanket
Go out lake body；Since drainage blanket is provided entirely in below antiseepage film, while avoiding lakebed antiseepage film by underground water bursting, keep
The integrality of antiseepage film, greatly strengthens its anti-seepage effect.To solve man-made lake lake water eutrophication, add on the protection layer
Aquatic plants growth layer, can in man-made lake planting aquatic plants, make man-made lake double as artificial swamp.Artificial swamp passes through plantation
With process performance is good, survival rate is high, water-resistance is strong, growth cycle is long, beautiful and with economic value water plant, formed
One unique ecological environment can further remove the organic pollution in lake water, while is removed to N, P and bacterium etc.,
Keep lake water water quality.In addition, promoting Water Ecological Recovery by planting planting submerged plant and fluitante in man-made lake, the water surface is promoted
Thus the ecological environment of landscape effect, man-made lake is also improved, diversity of organism is protected.Protective layer is avoided that plant
Destruction of the object root system to antiseepage film has many advantages, such as good seepage-proof property, simple in structure, low cost, has preferable promotional value.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of the main weeper drain of the present invention；
Fig. 3 is the structural schematic diagram of the present invention time weeper drain；
Fig. 4 is the structural schematic diagram of primary and secondary weeper drain of the present invention intersection；
Fig. 5 is arrangement schematic diagram of the primary and secondary weeper drain of the present invention in lake region.
In figure：
1, basal layer, 3, upper coarse sands layer, 4, antiseepage film, 5, protective layer, 6, aquatic plants growth layer；
21, main weeper drain, 211, main perforated pipe, 212, main draining boulder bed, 213, main draining nonwoven layer, 214, main
Drain coarse sands layer, 22, secondary weeper drain, 221, secondary perforated pipe, 222, secondary draining boulder bed, 223, secondary draining nonwoven layer,
224, secondary draining coarse sands layer；
51 coarse sand bed courses, 52 concrete precast block layers.
Specific implementation mode
Present invention is further described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of antiseep of artificial lake structure, including set gradually from the bottom to top basal layer 1, weeper drain,
Upper coarse sands layer 3, antiseepage film 4, protective layer 5 and aquatic plants growth layer 6.
As shown in Fig. 2, the protective layer 5 includes coarse sand bed course 51 and concrete precast block layer 52.
As shown in 1- Fig. 4, the weeper drain includes main weeper drain 21 and time weeper drain 22；Main weeper drain 21 wraps
Include the main perforated pipe 211 set gradually from inside to outside, main draining boulder bed 212, main draining nonwoven layer 213 and main draining coarse sand
Layer 214, secondary weeper drain 22 include the secondary perforated pipe 221, secondary draining boulder bed 222, secondary draining nothing set gradually from inside to outside
Woven fabric layer 223 and time draining coarse sands layer 224.
As shown in Figure 1, the discharge outlet of the secondary perforated pipe 22 is located at 21 top of main perforated pipe.
As shown in Figures 2 and 3, the secondary weeper drain 21 is consistent with the crest level of main weeper drain 22, described draining
The bottom elevation of french drain 22 is higher than the bottom elevation of main weeper drain 21.
As shown in figure 5, the main weeper drain 21 is arranged along man-made lake long axis direction, and connect with the secondary weeper drain 22
Logical, the secondary weeper drain 22 is distributed in the both sides of main weeper drain 21；The main weeper drain 22 and time weeper drain 21 it
Between angle A be 90 degree.
The antiseepage film 4 is two cloth of 400g/ ㎡, one membranous type composite geo-membrane；The main weeper drain 21 and time row's french drain 22
The gradient be 1 ‰, and tilted down along drainage direction；211 caliber of main perforated pipe is 150mm, and the secondary perforated pipe 221 is managed
Diameter is 125mm；On the main perforated pipe 211 and time perforated pipe 221,8 holes are distributed with along its circumference in each section, hole of perforating
Diameter is 20mm, and spacing is 100mm between section of perforating；The compactness of the basal layer 1 is not less than 0.93, and its surface Wu Shu
The protrusions such as root, reed and rubble wedge angle；51 thickness of coarse sand bed course is 100mm, 52 thickness 80mm of the concrete precast block layer；
Original place soil in the rejecting soil that the aquatic plants growth layer 6 is 150mm after tree root, reed and rubble.
Step 1, basal layer is constructed：
1) it is not destroy foundation soil structure, away from reserved protective layer lakebed designed elevation 15cm at, using manual amendment
To designed elevation and meet the gradient and flatness of design requirement.
2) basis need to carry out clear base processing, it is desirable that be：Thoroughly remove top sod, fertile soil, plantation soil, big grain size cobble
And plant root whisker；Preferably by the visible plant root whisker of basal layer by its surface 10cm hereinafter, clear base depth can be drunk according to actual conditions
Feelings increase and decrease.
3) foundation filling soil should be tamped, and compacting factor is not less than 0.93, and earth excavation can be used in filler, and internal friction angle is unsuitable
Less than 25 °, forbid to regard clear base quarrel soil as backfill.
4) layer is preferably handled with soil fungicides there are when Special fungus category influential on composite geo-membrane face to face.
Step 2：Drainage blanket is constructed：
1) preferably use small-sized machine or manually on the basis of ditching, adversely affected to avoid to basis.
2) coarse sands layer of first shop fixtures layer, coarse sands layer, non-woven fabrics and the boulder bed synchronous construction of side；Adrainage material should be layered
Paving is filled out, and 300mm is not more than per layer thickness, is consolidated with flat vibrator after leveling, cobble should be avoided to be crushed in construction.
3) PVC collector pipes in french drain center are laid with when paving is to tube bottom absolute altitude, should have there are the gradient appropriate, must not there is adverse slope
Phenomenon.
In french drain anti-filter coarse sands layer 4) (left and right, under) must not contain the protrusions such as tree root, reed and rubble wedge angle, to prevent
Non-woven fabrics is punctured.
5) relaxed state should be kept when being laid with non-woven fabrics, to adapt to each side's facial disfigurement, ensures the intact of non-woven fabrics；Before laying
Non-woven fabrics must be checked, discovery has destruction position to be repaired.
6) coarse sand bed course (upper coarse sands layer 3) surface must not have the protrusions such as tree root, reed and rubble wedge angle, to prevent two cloth one
Film impervious barrier is punctured；Mat surface palpus refine is smooth, can carry out the construction of antiseepage film.
Step 3：Impervious barrier construction point：
1) weld width of two cloth, one film should not be less than 10cm, must be cleaned to bonding plane before splicing, on bonding plane
Must not there are greasy dirt, dust and bonding plane is kept to dry.Welding meets the requirement of specification using live sweat soldering, welding procedure.
2) two cloth, one film live joints it is ensured that its with reliable anti-seepage effect.In splicing and splice
Afterwards in 24 hours, Mosaic face must not bear any pulling force, forbid Mosaic face that the changing of the relative positions occurs.It is not low that two cloth, one film seam splices intensity
In the 80% of base material.
3) two cloth, one film should keep relaxed state when being laid with, and to adapt to each side's facial disfigurement, ensure the intact of two cloth, one film；Paving
Two cloth, one film must be checked before if, discovery has destruction position to be repaired.
4) after two cloth, one film coheres well, it is necessary to which safekeeping avoids direct sunlight, to prevent impaired.The antiseepage film completed exists
Must carry out cushion construction in 12 hours to be protected, otherwise should take other temporary preventive measure, with resisting ultraviolet radiation plus
The aging of fast antiseepage film.
5) in process of deployment, operating personnel must not wear hard bottom leather shoes and the shoes with nail, inaccurate directly to be unloaded on two cloth, one film
Concrete block is put, the reinforcing bar with point is banned the use of and makees pry tool, two may be caused by forbidding to beat building stones and all on two cloth, one film
The construction operation of one film of cloth damage.
Step 4：Protective layer construction point：
1) concrete precast block layer (diagram 6) of the protective layer by coarse sand bed course (diagram 5) and above it is constituted, coarse sand bed course
There must not be the protrusions such as tree root, reed and rubble wedge angle, be punctured to prevent two cloth, one film impervious barrier.
2) coarse sand bed course shakeouts rear suitable manual compaction, then re-lays concrete precast block protective layer；It is laid in geomembrane
After the completion, protective layer should be filled in time, be damaged to prevent geomembrane.
3) protective layer construction working face should not use heavy-duty machinery and vehicle transport, and lay plank can be used, use trolley
The mode of transport
Step 5：Top soil construction point：
1) the excavation earth material in fertile soil, plantation soil or work progress can be used in growth soil, but earth material needs to be sieved, to remove
Twig, weeds, dead leaf and rubble in soil etc..
2) it avoids using the sposh in the pool as possible, in order to avoid the seed of incorporation aquatic weed or other harmful organism bacterium.
3) submerged plant is planted after gauze, non-woven wraps can be used in the form of throwing kind；Fluitante kind in the form of throwing kind
It plants, emergent aquactic plant is planted in the form of rice transplanting in lakebed.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of antiseep of artificial lake structure, including set gradually from the bottom to top basal layer, drainage blanket, antiseepage film, protective layer and
Top soil, it is characterised in that：The drainage blanket includes the weeper drain set gradually from the bottom to top and upper coarse sands layer, described
Weeper drain cobble paving is filled out.
2. antiseep of artificial lake structure according to claim 1, it is characterised in that：The weeper drain include from inside to outside according to
Perforated pipe, boulder bed and the nonwoven layer of secondary setting, and the coarse sands layer in nonwoven layer side and lower section is set.
3. antiseep of artificial lake structure according to claim 1 or 2, it is characterised in that：The weeper drain includes main draining
French drain and time weeper drain, the main weeper drain are arranged along man-made lake long axis direction, and the secondary weeper drain and main draining are blind
Ditch is connected to.
4. antiseep of artificial lake structure according to claim 3, it is characterised in that：Main perforation is equipped in the main weeper drain
Pipe, secondary weeper drain is interior to be equipped with time perforated pipe, and the secondary perforated pipe is connected to main perforated pipe or the discharge outlet of secondary perforated pipe is located at
Above main perforated pipe.
5. antiseep of artificial lake structure according to claim 3 or 4, it is characterised in that：The secondary weeper drain be equipped with it is multigroup,
Spacing between two adjacent secondary weeper drain groups is 20-40m.
6. antiseep of artificial lake structure according to claim 3 or 4, it is characterised in that：The secondary weeper drain and main draining
The crest level of french drain is consistent, and the bottom elevation of the secondary weeper drain is higher than the bottom elevation of main weeper drain.
7. antiseep of artificial lake structure according to claim 3 or 4, it is characterised in that：The main weeper drain and time draining
Angle A between french drain is 60-90 degree.
8. antiseep of artificial lake structure according to claim 1 or 2, it is characterised in that：The protective layer includes coarse sand bed course
With the concrete precast block layer above coarse sand bed course.
9. antiseep of artificial lake structure according to claim 8, it is characterised in that：The concrete precast block layer is by several
Right hexagonal steel-concrete prefabricated section layer is spliced.
10. a kind of construction method of antiseep of artificial lake structure, includes the following steps：
The first step, basal layer construction：Clear base processing is carried out to lakebed basal layer, and digs out ditch on basal layer；
Second step, drainage blanket construction：The coarse sands layer in the case where the bottom of above-mentioned ditch is laid with, is then placed in non-woven fabrics, and in non-woven fabrics
Portion spreads guanovulite and forms boulder bed, and non-woven fabrics both sides are laid with side coarse sands layer so that non-woven fabrics by cobble and basal layer, boulder bed and
Under, side coarse sands layer separates；When boulder bed paving is filled to precalculated position, it is put into perforated pipe, paving is then proceeded to and fills out；When boulder bed paving is filled out
When extremely concordant at the top of basal layer, non-woven fabrics is closed, forms weeper drain；
Third walks, upper coarse sands layer construction：Upper coarse sands layer is laid at the top of basal layer and at the top of weeper drain；
4th step, antiseepage film construction：It is laid with antiseepage film above upper coarse sands layer；
5th step, protective layer construction：It is laid with coarse sand bed course first in antiseepage film, it is pre- that concrete is then laid on coarse sand bed course
Clamp dog layer；
6th step, top soil construction：Earth material is laid on concrete precast block layer as top soil.
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| CN110158541A (en) * | 2019-06-03 | 2019-08-23 | 中国电建集团华东勘测设计研究院有限公司 | The double-deck geomembrane anti-seepage discharge structure, construction method and library basin antiseepage discharge structure |
| CN110747963A (en) * | 2019-11-22 | 2020-02-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Seepage-preventing membrane upward seepage-guiding system suitable for phosphogypsum storage yard |
| CN112609804A (en) * | 2020-10-29 | 2021-04-06 | 杭州青桐林园林设计有限公司 | Supplementary construction equipment of ecological pond of log landscape |
| WO2023208309A3 (en) * | 2022-04-25 | 2023-12-21 | Emac Lagoons | An innovative system for the construction and operation of an artificial lake with a huge water body used for recreational purposes |
| WO2023193870A3 (en) * | 2022-04-06 | 2024-06-06 | Emac Lagoons | An innovative system for lining of the large water structures that ensures that water does not leak out of the structure |
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Application publication date: 20181106 |