CN107100227A - A kind of pergola on the city road LID biologies are detained ditch construction method - Google Patents
A kind of pergola on the city road LID biologies are detained ditch construction method Download PDFInfo
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- CN107100227A CN107100227A CN201710283195.9A CN201710283195A CN107100227A CN 107100227 A CN107100227 A CN 107100227A CN 201710283195 A CN201710283195 A CN 201710283195A CN 107100227 A CN107100227 A CN 107100227A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/221—Kerbs or like edging members, e.g. flush kerbs, shoulder retaining means ; Joint members, connecting or load-transfer means specially for kerbs
- E01C11/223—Kerb-and-gutter structures; Kerbs with drainage openings channel or conduits, e.g. with out- or inlets, with integral gutter or with channel formed into the kerb ; Kerbs adapted to house cables or pipes, or to form conduits
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
- Road Paving Structures (AREA)
Abstract
It is detained ditch construction method the invention provides a kind of pergola on the city road LID biologies, comprises the steps：Groove and well excavate plastic product inspection shaft and city planting ductwork connecting tube installs concrete furrow bank construction substrate sanding antiseepage film boulder bed paving of mating formation and adds that HDPE perforated pipes are installed and the permeable handwoven cloth paving sand filter blanket of cobble filling lower floor adds and spreads the permeable geotextiles paving both sides kerbstone of layer and install that planting soil layer backfill rain perforaled strainer, well lid are installed and rubble barrier belt construction planting is cleaned and checked and accepted.It is traditional from source is in line, drainage pattern that is being concentrated to end that the present invention changes urban road, while draining is solved, by usually harvesting in the biological rainwater health plant being detained in ditch, rainwater is utilized, and urban heat land effect can be solved and play a part of brightening city, beautify the environment.
Description
Technical field
The present invention relates to rainwater treatment technical field, more particularly to a kind of pergola on the city road LID biologies are detained ditch spread
Work method.
Background technology
With greatly developing for city, urban development is faced with huge environment and resource pressure, in city development construction
While, ecological body is destroyed to a certain extent, hydrology function has been upset, bring Ecology destruction, water security risk,
The problems such as water environment dirt beam and shortage of water resources, therefore " sponge city " construction theory is arisen at the historic moment.
And traditional urban belt road greening band biology is detained ditch and gets used to defeating nature, the urban construction mould of nature remodeling
Formula, for main planning construction theory, serious urban disease and ecology is as a result caused with " quick to exclude " and " end concentration " control
Crisis, and sewage is in line to end from source, by the way of central drainage, maintenance cost is higher.
The content of the invention
In order to solve the above technical problems, being detained ditch construction party the invention provides a kind of pergola on the city road LID biologies
Method, it is traditional from source is in line, drainage pattern that is being concentrated to end that the construction method changes urban road, is solving draining
Meanwhile, by usually harvesting in the biological rainwater health plant being detained in ditch, rainwater is utilized, and Urban Thermal can be solved
Island effect and play a part of brightening city, beautify the environment.
The present invention is achieved by the following technical programs.
A kind of pergola on the city road LID biologies that the present invention is provided are detained ditch construction method, comprise the following steps：
1. groove and well are excavated：Be familiar with construction drawing, excavating sideline gone out according to design working drawing measuring, cleaning on the ground and
Underground has an impact pipe network, facility, structures, trees, weeds and the discarded object of construction, after experience line is qualified, spreads out lime line
Excavated afterwards；
2. plastic product inspection shaft and city planting ductwork connecting tube are installed：1. step completes and after acceptance(check), installs plastics
Finished product inspection well and city planting ductwork connecting tube, first fill out one layer of medium coarse sand bed course of paving, localization examination Jing Jingzuo centers are adjusted in Ji Tushang
Whole good ttom of pipe absolute altitude, then takes over installation, the construction method that well seated connection head is connected with city planting ductwork connecting tube should with it is similar
The construction method of the pipeline connection of type joint is consistent, and interface is stuck, without space；
3. concrete furrow bank is constructed：Using concreting furrow bank, before pouring, the debris in furrow bank is cleared up, will
Furrow bank is moistened, concrete vibrating is closely knit, and road head fall is more than 3%, and uses the staged practice, sets overfall,
Overfall absolute altitude is less than grade elevation, sets interval with road grade control, is placed on boulder bed, overfall bottom absolute altitude is not less than
Sand filter blanket, both sides with concrete furrow bank is whole pours；
4. substrate spreads medium coarse sand bed course：Spread and ensure that substrate is smooth before medium coarse sand bed course, it is uniform in furrow bank to lay one layer 50
Medium coarse sand thick~100mm, lays smooth, thickness unanimously, and without prominent stone and debris, its clay content is not more than 3%；
5. antiseepage film is mated formation：Foundation ditch bottom and foundation pit walls are close in antiseepage film paving, and paving is smooth, no wrinkle, along ditch during paving
Slot length direction is segmented paving, is first temporarily fixed on the long side of film on the furrow bank of side with line card, then tight with adhesive bonds
It is close, film and bonding are opened up to offside furrow bank, if groove is wider, when single width film is wide inadequate, a film is separately cut, by opposite side furrow bank
Film is opened up to bottom of trench, most connecting sewing stays in ditch bottom bonding at last, the seam between film and film uses special welding machine weld bonds,
It is firmly bonded, the seam lap width of film and film is not less than 100mm, and antiseepage film is closely pasted with inspection shaft borehole wall position；
6. boulder bed paving adds：Step 5. after, carry out boulder bed paving add, put down gently and filled out using small-sized machine when paving adds
Material, cobble particle diameter is 25~40mm, and clay content is less than 1%, and paving adds to the ttom of pipe absolute altitude of HDPE perforated pipes；
7. HDPE perforated pipes are installed and cobble filling：Before HDPE perforated pipes are installed, the HDPE perforated pipes mouth of pipe, diameter etc. are entered
Row checks that the caliber of HDPE perforated pipes is not less than 150mm, and perforate, at least 4 are carried out in upper and lower, left, the left four direction of tube wall
Round, 15~20mm of aperture, the percent opening of HDPE perforated pipes is not less than 15%, and during laying HDPE perforated pipes, the gradient is not less than
0.05%, after installation, HDPE perforated pipe upstream port lid seals, surrounding carries out paving with cobble and filled out, and cobble particle diameter is not
HDPE perforated pipe open pore sizes must be less than, and boulder bed thickness is not less than 50mm, boulder bed general thickness above and below HDPE perforated pipes
Not less than 300mm；
8. the permeable handwoven cloth paving of lower floor：Using large-sized permeable geotextiles, geotextiles specification is 150g/m~300g/
M2, the lap of splice of interface geotextiles is no less than 150mm, and paving is smooth, and both sides abut furrow bank, seamless；
9. sand filter blanket adds paving：Step 8. after the completion of, in the above tile one layer of sand filter blanket, modulus of fineness be 2.3~3.7,
Consistency of thickness, not less than 100mm；
10. the permeable geotextiles paving in upper strata：Repeat step is 8.；
Both sides kerbstone is installed：Both sides kerbstone is placed on concrete furrow bank, and circular arc then uses 200~400mm
The kerbstone splicing of length, seam crossing stays seam uniform, and its kerbstone intakes gap along driveway longitudinal slope spaced set, gap road
Kerb rainwater gap surrounding diameter 4~8cm cobble makings；
Planting soil layer backfill：Soil is uniform, smooth backfill, and having backfilled watering after one layer makes its saturation, then backfills down
One layer, soil horizon should not be tamped, and the water holding space after backfill soil horizon reserves the laying space of coating, from driveway road surface
Highly it is 200~300mm, using peeling bark and leaf of the time more than more than 6 months；
Rain perforaled strainer, well lid are installed and rubble barrier belt construction：The rain perforaled strainer of overfall is using the double comb rainwater of finished product
Mouthful, its elevation of top is not less than 50~100mm of vegetation cover, and overfall spacing is 10~25m, inlet for stom water surrounding diameter 4
~8cm cobble makings；Inspection shaft well lid uses the supporting well lid of finished product, and its elevation of top is with driveway grade elevation；Rubble is obstructed
The section of band is triangle, is made up of different gradation rubble, and rubble barrier tape two ends use large volume stone, center section master
To be made up of level with different fritter cobblestones, rubble, admix plain concrete and cobble is fixed, broken two ends and concrete ditch
Wall or kerbstone are closely coupled, and rubble barrier tape elevation of top is less than driveway grade elevation；
Planting：Phytobiocoenose is configured, planting in planting soil layer；
Clean and check and accept：Scattered material, spoir, sandstone, the debris of job site are cleared, swept and cleaned,
Final acceptance of construction is carried out afterwards.
1. the step is divided into following steps：
(1.1) before channel excavation, digging mode, route, order, absolute altitude, gradient situation are determined, bottom of trench head fall is with road
Road longitudinal slope；
(1.2) when excavating, interim mound or apply other loads and must not influence the stability of pit side slope, mound height and
Its distance away from well edge is performed by job specfication.
It is described level of ground water it is higher area or in rainy season construction, using draining or reduction water level measure, construction
When level of ground water is down to below substrate minimum point 500mm, must not be soaked in pit by water, if being immersed in water, first by water
Exclude, then remove the soil layer soaked, change filling out processing by design and code requirement.
Situation about being disturbed with base soil of backbreaking must not occur in the substrate and side slope, during using mechanical equivalent of light excavation, close to substrate
And side slope 200mm thick soil stratums are by manually being excavated, clear bottom, repair slope and levelling.
Plastic inspection well and the city planting ductwork connecting tube is necessarily mounted on the base soil for meeting design requirement, or is being opened
Through handling on closely knit ground after digging.
The HDPE perforated pipes use crane lifting, and crane is away from limes marginis at least 2m, using manually installed, in HDPE perforated pipes
Heart line is controlled with sideline method, and connection is using thermofussion welding docking.
The stepIn soil permeability coefficient be 3 × 10-6~1 × 10-5M/s, penetrating power is not less than 25cm/h,
PH is 5.5~6.5, and the content of organic matter is 3.0%~5.0%, and clay ＜ 10%, slity soil is 30%~55%, and sandy soil is
35%~60%, when configuration soil pH value is unsatisfactory for requiring, it is adjusted using lime, Cosan, ferrous sulfate or alum rich water
PH value.
The thickness of the soil horizon is not less than 600mm, and herbal planting soil thickness degree is not less than 600mm, shrub
Not less than 900mm, arbor is not less than 1200mm.
The beneficial effects of the present invention are：
1. taken by reduction Water Environmental Pollution Controls such as rainwater resources utilization, pollution sources preventing and treating, the alleviations of waterlogging disaster
With and the huge loss that causes of urban waterlogging.
2. by elements infiltration, retaining, draining, the engineering construction amount of pumping equipment is greatly reduced, fortune is reduced
Row maintenance requirement and cost, can quickly repair Urban Water Ecological Environment.
3. bringing comprehensive ecological environmental benefit, hence it is evident that increase city " indigo plant ", " green " space, tropical island effect is reduced, improves people
Habitat environment, provides habitat for more biological, plants, improves Urban Biodiversity level.
4. it is non-slip, it is ensured that under pedestrian and vehicle safety, layer without ponding to reduce surface after urban heat land effect, road surface rain
Moisture is under sunlight irradiation, slow evaporation, plays a part of adjusting ground temperature and humidity.
5. improving the environment of urban plant growth, the ventilative raising of soil permeability, soil drinking water rate is improved, temperature reduction,
The utilization rate of soil nutrient is improved, beneficial to the growth of plant.Economize on resources natural rainfall, raises underground water, reduces trees and irrigates
Water consumption, accomplishes the recycling of resource.
6. beneficial to promotion of city image, the characteristics of with dirt, noise reduction is subtracted, and unique decorative effect and the harmony of the Nature
It is unified, it is to build the indispensable part of Construction of Eco-urban.
Brief description of the drawings
Fig. 1 is construction process figure of the present invention；
Fig. 2 is inspection shaft organigram of the present invention；
Fig. 3 is overflowing rain water well construction schematic diagram of the present invention；
Fig. 4 is present invention interval with road grade control structure schematic diagram；
Fig. 5 is kerbstone water inlet gap structural representation of the present invention；
Fig. 6 is rubble barrier tape structural representation of the present invention.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
As described in Figure 1, a kind of pergola on the city road LID biologies are detained ditch construction method, comprise the steps：
1. groove and well are excavated
1.1 are fully understood by job site situation, cleaning on the ground and underground have an impact the pipe network of construction, facility, structures,
Trees, weeds and discarded object etc..
1.2 are familiar with construction drawing, and excavating sideline is gone out according to design working drawing measuring, after experience line is qualified, spread out lime line
It can just be excavated.
Before 1.3 channel excavations must determine digging mode, route, order, absolute altitude, the gradient situations such as, bottom of trench head fall with
Road longitudinal grade.
1.4 when excavating, and interim mound or applies other loads and must not influence the stability of pit side slope, mound height and its
Distance away from well edge presses associated construction regulation enforcement.
1.5 levels of ground water it is higher area or in rainy season construction, should have draining or reduce water level measure, during construction should
Level of ground water is down to below substrate minimum point 500mm.It must not be soaked in pit by water, should as being immersed in water during construction
First water is excluded, the soil layer soaked is then removed, change filling out processing by design and corresponding code requirement.
The situation that backbreaking must not occur in 1.6 substrates and side slope and base soil is disturbed, during using mechanical equivalent of light excavation, close to substrate and
Side slope 200mm thick soil stratums are by manually being excavated, clear bottom, repair slope and levelling.
2. plastic product inspection shaft and city planting ductwork connecting tube are installed
2.1 can carry out plastic product inspection shaft and city planting ductwork company after groove and well excavate completion and acceptance(check)
The installation of adapter, plastic inspection well and pipeline are necessarily mounted on the base soil for meeting design requirement, or through processing after excavation
On closely knit ground, inspection shaft construction is as shown in Figure 2.
2.2 plastic product inspection shaft and city planting ductwork connecting tube must fill out paving a layer thickness in Ji Tushang in a pre-installation
100mm medium coarse sand bed course.
2.3 elder generation localization examination Jing Jingzuo centers, adjust ttom of pipe absolute altitude, then take over installation.
The construction method one that the construction method that 2.4 well seated connection heads are connected with pipeline should be connected with the pipeline of similar type joint
Cause.The gradient of connecting pipe will meet design or code requirement, and junction will ensure firm non-leakage.
3. concrete furrow bank is constructed
3.1 concrete furrow banks and overflowing rain water well are concrete structure, and strength grade of concrete presses design requirement, its template
Position, absolute altitude and the size of installation will meet design requirement, and falsework is reliable and stable, and piece is tight, and model sheetinstallat will
There is corresponding design and check, overflowing rain water well construction is as shown in Figure 3.
If 3.2 pavement of road are designed with head fall, concrete groove and furrow bank change with grade elevation, if road
Head fall is more than 3%, using the staged practice, sets overfall, overfall absolute altitude is less than grade elevation 200mm, between setting
Every with road grade control, as shown in figure 4, overfall concrete strength is with concrete furrow bank, overfall wall thickness is 150mm, is put
In on boulder bed, bottom absolute altitude must not be less than sand filter blanket, both sides with concrete furrow bank is whole pours.
3.3 preferably use commerical ready-mixed concrete to be poured, before pouring, and should clean out debris in template etc., by mould
Plate is moistened, and checks whether set aside pre-embedded situation meets design requirement.
3.4 concrete vibratings are closely knit, must not there is the mass defects such as honeycomb, hole, swollen mould, slag inclusion.
3.5 carry out the maintenance work of concrete and finished product protection work in time.
4. substrate sanding
To prevent the sharp rock ballast damage impervious barrier of substrate, therefore during one layer of 50~100mm of laying is thick before impervious barrier construction
Coarse sand.The sand material of use answers the hard cleaning of quality, and level is with well, and clay content is not more than 3%.Substrate should be smooth before sanding, without prominent
Go out stone and debris, uniform ground is answered in laying, and thickness is consistent, and the gradient meets design requirement.
5. antiseepage film paving
5.1 antiseepage film pavings should be close to foundation ditch bottom and foundation pit walls, and appropriateness tensioning, paving is smooth, should not there is fold.During paving
Paving is segmented along trench length direction, section length regards groove width and camber is determined, it is first that the long side of film is temporarily solid with line card
It is scheduled on the furrow bank of side, then it is tight with adhesive bonds, open up film and bonding to offside furrow bank.If groove is wider, single width film is wide
When not enough, a film is separately cut, film is opened up from opposite side furrow bank to bottom of trench, most connecting sewing stays in ditch bottom bonding at last.Film with
Seam between film should use special welding machine weld bonds, be firmly bonded and should not have Seepage, the seam of film and film is taken
Meet width typically no less than 100m.
5.2 antiseepage films should be connected well with inspection shaft borehole wall position, it is ensured that junction is impermeable.
5.3 operating personnels should protect antiseepage film in construction, after the completion of antiseepage film laying, should try one's best reduction on film surface
Walk, move instrument etc., all objects that can be caused harm to antiseepage film should not be placed on film or carry and be walked on film, with
Exempt to cause accidental injury to film, as found there is breakage, should repair in time.
6. boulder bed fills out paving
6.1 cobble particle diameters should meet design requirement, when design is not known, should be 25~40mm, clay content should be less than 1%.
After 6.2 impervious barrier pavings are complete, carry out boulder bed fills out paving, puts down filler gently filling out the appropriate to the occasion use small-sized machine of paving, no
Directly topple over and throwing, when manually being constructed on impervious barrier must safeguard procedures accordingly, in order to avoid destroy impervious barrier.
It should be filled out during 6.3 boulder bed by mono- layer of progress place Min layers of 300mm.There must not be the entrance of the debris such as soil, leaf during construction
In boulder bed, filled out according to the design grade of perforated pipe at paving to the ttom of pipe absolute altitude of HDPE perforated pipes.
7. HDPE perforated pipes are installed and cobble filling
7.1 pipelines in a pre-installation, answer line up, diameter etc. to be checked, the caliber of HDPE perforated pipes is not less than 150mm,
General upper and lower, left, the left four direction in tube wall carries out perforate (at least 4 rounds), and 15~20mm of aperture, pitch-row 100mm are worn
The percent opening of hole pipe is not less than 15%.
During 7.2 laying perforated pipe, the gradient should meet design requirement, typically with road grade, and during design no requirement (NR), the gradient is not
Must not there are soil block, leaf etc. to enter in perforated pipe less than 0.05%, during construction.
7.3 groove depths also can pass to trench bottom workmen's down tube by manually shouldering groove under pipe when little by manually lifting pipe,
During using lifting, crane is away from limes marginis at least 2m, it is to avoid cause limes marginis to cave in.
7.4 Pipe installings are manually installed, and pipe centerline is controlled using sideline method, and connection is docked using thermofussion welding, even
Code requirement should be met by connecing quality.After pipe joint, the elevation and axis that should check pipeline comply with requirement.
After the completion of 7.5 Pipe installings, perforated pipe upstream port should use lid seals, and pipeline surrounding is spread with cobble
Fill out, cobble particle diameter cannot be less than pipeline tapping aperture, cobble paving raising degree should meet boulder bed above and below designed elevation, and perforated pipe
Thickness is not less than 50mm, and boulder bed general thickness is not preferably less than 300mm.
8. the permeable geotextiles paving of lower floor
8.1 as far as possible using the permeable geotextiles of large-size, and geotextiles specification is 150g/m2~300g/m2(ordinary circumstance
It is 200g/m down2), geotextiles, which are tried one's best, reduces overlap joint number of times, and the lap of splice of interface geotextiles is no less than 150mm.
8.2 geotextiles answer paving smooth, and both sides abut furrow bank, must not leave gap, it is found that geotextiles occur damaged, in time
Change.
9. sand filter blanket fills out paving
After the geotextiles paving of 9.1 lower floors is complete, one layer of sand filter blanket of paving is filled out in the above, soil horizon and boulder bed are isolated and
Filtration, sand filter blanket selects clean building medium coarse sand, and modulus of fineness should be 2.3~3.7, and sand filter blanket thickness will by design
Ask, such as design no requirement (NR), ordinary circumstance is thick not less than 100mm.
9.2 sand filter blankets, which should be spread, fills and leads up whole, and integral thickness control is consistent.
10. the permeable geotextiles paving in upper strata
Repeat step is 8..
Both sides kerbstone is installed
11.1 both sides kerbstones are placed on concrete furrow bank, should first check whether concrete furrow bank axis and absolute altitude meet
Design requirement, and proofread.
The specification of 11.2 kerbstones presses design requirement, and meeting circular arc can be spelled using the kerbstone of 200-400mm length
Connect, it is ensured that circular arc it is smooth, kerbstone disposes absolute altitude with road elevation, and installation will steadily firmly, and seam crossing stays seam uniform, jointing
Full, clear, side angle is uniform, attractive in appearance.
11.3 kerbstones water inlet gap (can also use other opening forms) is along driveway longitudinal slope spaced set, in gap
It is 4.5m to middle spacing, gap kerbstone rainwater gap surrounding diameter 4~8cm cobbles making is to filter dregs, and kerbstone enters
Water gap structure is as shown in Figure 5.
Planting soil layer backfill
Design requirement is pressed in the configuration of 12.1 soil, during design no requirement (NR), and its infiltration coefficient is 3 × 10-6~1 × 10-5M/s, oozes
Saturating ability is not preferably less than 25cm/h, and pH is 5.5~6.5, and the content of organic matter is 3.0%~5.0%, clay ＜ 10%, slity soil
For 30%~55%, sandy soil is 35%~60%, and the certain earth to be banketed of collection does corresponding detection before backfill, it is ensured that return
The soil filled out meets design and code requirement.
12.2 when configuration soil pH value is unsatisfactory for requiring, can be using lime, Cosan, ferrous sulfate or the regulation of alum rich water
Its pH value.
12.3 planting soil thickness degree should be according to design requirement and vegetation type determination, generally, the thickness of soil horizon
Degree is not preferably less than 600mm.600mm is not preferably less than for herbal planting soil thickness degree, shrub is not preferably less than 900mm,
Arbor is not preferably less than 1200mm.
12.4 soil should be backfilled when backfilling by every mono- layer of 300mm, and having backfilled watering after one layer makes its saturation, then backfills
Next layer, soil horizon should not be tamped.
Water holding space after 12.5 backfill soil horizons should reserve the laying space of coating, and overburden cover is generally
100mm, the preferably bark and leaf using the peeling time more than more than 6 months, coating laying should be uniform, smooth.
Height of the soil horizon (coating) from driveway road surface after 12.6 backfills, should be according to plant ability of inundation and soil
Permeance property determines, generally 200~300mm.
Rain perforaled strainer, well lid are installed and rubble barrier belt construction
The rain perforaled strainer of 13.1 overfalls uses finished product leaf grating for down pipe, is preferably double comb inlets for stom water, and its elevation of top is not preferably less than
50~100mm of vegetation cover, overfall spacing is preferably 10~25m, and inlet for stom water surrounding is with diameter 4~8cm cobble makings with mistake
Filter residue soil.
13.2 inspection shaft well lids use the supporting well lid of finished product, and its elevation of top is with driveway grade elevation.
The section of 13.3 rubble barrier tape is triangle, and rubble barrier tape is broken by different gradation every 10m settings one
Stone is constituted, and barrier tape two ends use larger volume stone, and different fritter cobblestones, rubble group are mainly matched somebody with somebody in center section by level
Into, admix appropriate plain concrete and cobble be fixed, rubble barrier tape is placed into the soil a layer 50mm, two ends and concrete furrow bank or
Kerbstone is closely coupled.Rubble barrier tape elevation of top is less than driveway grade elevation 50mm, rubble barrier band structure such as Fig. 6 institutes
Show.
Planting
14.1 plants configurations should be configured by design requirement, and be planted by corresponding specification.
14.2 plants preferably select resistance to stain, it is resistance to flood, drought-enduring kind, community arrangement should focus on the level of Qiao, filling, grass etc.
Collocation.
Clean and check and accept
15.1 check tests for marching into the arena material, defective material must not come into operation.
The process of 15.2 process qualitys is checked and accepted, and last process examination is unqualified must not to enter the construction of next procedure.
Final acceptance of construction after 15.3 pairs of whole Practical Completions, before examination, to the scattered material of job site, spoir, sandstone,
Debris etc. is cleared, swept and cleaned, and report management and construction unit require that tissue is taken part in building each side according to design and related specifications
Finally checked and accepted.
Embodiment 1
I, which takes charge of, undertakes the construction of the Chongqing City Liang Jiang new districts of construction and pleases and carry out the second stage of road engineering (K0+510.000~K1 in new city school road
+ 441.699), implement starting point and arise from school road pile No. K0+510.000, northwards extend, after the usual friendship of Zhong Lilu, Jia Lan road, eventually
Only with good haze north of a road side, terminal pile No. K1+441.699, long 931.699m, are two-way six-lane, wide 36m, category of roads is city
City's major trunk roads, desin speed is 40km/h.The wide 6m in both sides pavement.The project as one of national sponge urban construction pilot,
According to national sponge urban construction requirement, according to house town and country construction portion《Sponge urban construction technical manual --- low influence is opened
Send out storm-water system and build (tentative)》It is comprehensive with reference to the actual conditions of Chongqing Yue Lai sections Deng technical stipulation and related management method
Research and analyse, newly-built and part present situation road is built using low influence development facility (LID) rainwater comprehensive utilization technology.
The project is marched into the arena in September, 2015 to be put into operation, and the current project has been completed, and achieves good social effect.
Claims (8)
1. a kind of pergola on the city road LID biologies are detained ditch construction method, it is characterised in that：Comprise the following steps：
1. groove and well are excavated：It is familiar with construction drawing, excavating sideline, cleaning ground and underground is gone out according to design working drawing measuring
Pipe network, facility, structures, trees, weeds and the discarded object of had an impact construction, after experience line is qualified, spread out lime line laggard
Row is excavated；
2. plastic product inspection shaft and city planting ductwork connecting tube are installed：1. step completes and after acceptance(check), installs plastic product
Inspection shaft and city planting ductwork connecting tube, first fill out one layer of medium coarse sand bed course of paving, localization examination Jing Jingzuo centers are adjusted in Ji Tushang
Ttom of pipe absolute altitude, then takes over installation, and the construction method that well seated connection head is connected with city planting ductwork connecting tube should connect with same type
The construction method of the pipeline connection of head is consistent, and interface is stuck, without space；
3. concrete furrow bank is constructed：Using concreting furrow bank, before pouring, the debris in furrow bank is cleared up, by furrow bank
Moistened, concrete vibrating it is closely knit, road head fall be more than 3%, and use the staged practice, set overfall, dash
Weir absolute altitude is less than grade elevation, sets interval with road grade control, is placed on boulder bed, overfall bottom absolute altitude is not less than sand filtration
Layer, both sides with concrete furrow bank is whole pours；
4. substrate spreads medium coarse sand bed course：Spread and ensure that substrate is smooth before medium coarse sand bed course, in furrow bank one layer 50 of uniform laying~
Medium coarse sand thick 100mm, lays smooth, thickness unanimously, and without prominent stone and debris, its clay content is not more than 3%；
5. antiseepage film is mated formation：Foundation ditch bottom and foundation pit walls are close in antiseepage film paving, and paving is smooth, no wrinkle, along ditch flute length during paving
Direction segmentation paving is spent, is first temporarily fixed on the long side of film on the furrow bank of side with line card, then it is tight with adhesive bonds, to
Offside furrow bank opens up film and bonding, if groove is wider, when single width film is wide inadequate, separately cuts a film, from opposite side furrow bank to ditch
Film is opened up at bottom, and most connecting sewing stays in ditch bottom bonding at last, and the seam between film and film uses special welding machine weld bonds, bonds
Firmly, the seam lap width of film and film is not less than 100mm, and antiseepage film is closely pasted with inspection shaft borehole wall position；
6. boulder bed paving adds：Step 5. after, carry out boulder bed paving add, filler, ovum are put down gently using small-sized machine when paving adds
Stone particle diameter is 25~40mm, and clay content is less than 1%, and paving adds to the ttom of pipe absolute altitude of HDPE perforated pipes；
7. HDPE perforated pipes are installed and cobble filling：Before HDPE perforated pipes are installed, the HDPE perforated pipes mouth of pipe, diameter etc. are examined
Look into, the calibers of HDPE perforated pipes is not less than 150mm, perforate is carried out in upper and lower, left, the left four direction of tube wall, at least 4 rounds,
The percent opening of 15~20mm of aperture, HDPE perforated pipe is not less than 15%, and during laying HDPE perforated pipes, the gradient is not less than 0.05%,
After installation, HDPE perforated pipe upstream port lid seals, surrounding carries out paving with cobble and filled out, and cobble particle diameter cannot be less than
HDPE perforated pipe open pore sizes, and boulder bed thickness is not less than 50mm above and below HDPE perforated pipes, boulder bed general thickness is not less than
300mm；
8. the permeable handwoven cloth paving of lower floor：Using large-sized permeable geotextiles, geotextiles specification is 150g/m~300g/m2, connect
The lap of splice of geotextiles is no less than 150mm at mouthful, and paving is smooth, and both sides abut furrow bank, seamless；
9. sand filter blanket adds paving：Step 8. after the completion of, in the above tile one layer of sand filter blanket, modulus of fineness be 2.3~3.7, thickness
Unanimously, not less than 100mm；
10. the permeable geotextiles paving in upper strata：Repeat step is 8.；
Both sides kerbstone is installed：Both sides kerbstone is placed on concrete furrow bank, and circular arc then uses 200~400mm length
Kerbstone splicing, seam crossing stays seam uniform, and its kerbstone intakes gap along driveway longitudinal slope spaced set, gap kerbstone
Rainwater gap surrounding diameter 4~8cm cobble makings；
Planting soil layer backfill：Soil is uniform, smooth backfill, and having backfilled after one layer watering makes its saturation, then backfills next layer,
Soil horizon should not be tamped, and the water holding space after backfill soil horizon reserves the laying space of coating, from the height on driveway road surface
For 200~300mm, using peeling off bark and leaf of the time more than more than 6 months；
Rain perforaled strainer, well lid are installed and rubble barrier belt construction：The rain perforaled strainer of overfall uses the double comb inlets for stom water of finished product,
Its elevation of top is not less than 50~100mm of vegetation cover, and overfall spacing is 10~25m, inlet for stom water surrounding with diameter 4~
8cm cobble makings；Inspection shaft well lid uses the supporting well lid of finished product, and its elevation of top is with driveway grade elevation；Rubble barrier tape
Section be triangle, be made up of different gradation rubble, rubble barrier tape two ends use large volume stone, and center section is main
It is made up of level with different fritter cobblestones, rubble, admixes plain concrete and cobble is fixed, broken two ends and concrete furrow bank
Or kerbstone is closely coupled, rubble barrier tape elevation of top is less than driveway grade elevation；
Planting：Phytobiocoenose is configured, planting in planting soil layer；
Clean and check and accept：Scattered material, spoir, sandstone, the debris of job site are cleared, swept and cleaned, afterwards
Carry out final acceptance of construction.
2. pergola on the city road LID biologies as claimed in claim 1 are detained ditch construction method, it is characterised in that：The step
Suddenly 1. it is divided into following steps：
(1.1) before channel excavation, digging mode, route, order, absolute altitude, gradient situation are determined, bottom of trench head fall is vertical with road
Slope；
(1.2) when excavating, interim mound or apply other loads and must not influence the stability of pit side slope, mound height and its away from
The distance at well edge is performed by job specfication.
3. pergola on the city road LID biologies as claimed in claim 2 are detained ditch construction method, it is characterised in that：It is described
Level of ground water it is higher area or in rainy season construction, using draining or reduction water level measure, construction when underground water potential drop
It to below substrate minimum point 500mm, must not be soaked in pit by water, if being immersed in water, first water is excluded, quilt is then removed
The soil layer of immersion, change filling out processing by design and code requirement.
4. pergola on the city road LID biologies as claimed in claim 2 are detained ditch construction method, it is characterised in that：The base
Situation about being disturbed with base soil of backbreaking must not occur in bottom and side slope, during using mechanical equivalent of light excavation, close to substrate and the thick soil of side slope 200mm
Layer by manually being excavated, clear bottom, repair slope and levelling.
5. pergola on the city road LID biologies as claimed in claim 1 are detained ditch construction method, it is characterised in that：The modeling
Material inspection shaft and city planting ductwork connecting tube be necessarily mounted at meet design requirement base soil on, or after excavation through handle it is closely knit
Ground on.
6. pergola on the city road LID biologies as claimed in claim 1 are detained ditch construction method, it is characterised in that：It is described
HDPE perforated pipes use crane lifting, and crane is away from limes marginis at least 2m, using manually installed, HDPE perforated pipe center line sideline methods
Control, connection is using thermofussion welding docking.
7. pergola on the city road LID biologies as claimed in claim 1 are detained ditch construction method, it is characterised in that：The step
SuddenlyIn soil permeability coefficient be 3 × 10-6~1 × 10-5M/s, penetrating power is not less than 25cm/h, and pH is 5.5~6.5,
The content of organic matter is 3.0%~5.0%, clay ＜ 10%, and slity soil is 30%~55%, and sandy soil is 35%~60%, when
When configuration soil pH value is unsatisfactory for requiring, its pH value is adjusted using lime, Cosan, ferrous sulfate or alum rich water.
8. pergola on the city road LID biologies as claimed in claim 7 are detained ditch construction method, it is characterised in that：The soil
The thickness of earth layer is not less than 600mm, and herbal planting soil thickness degree is not less than 600mm, and shrub is not less than 900mm, tall
Wood is not less than 1200mm.
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| CN108547366A (en) * | 2018-04-23 | 2018-09-18 | 交通运输部科学研究院 | A kind of method of arid biogeographic zone highway rainwater-collecting |
| CN108797757A (en) * | 2018-07-15 | 2018-11-13 | 天津大学 | A kind of buried biological delaying basin and its method for arranging based on original greenbelt |
| CN108867691A (en) * | 2018-07-10 | 2018-11-23 | 上海佳长环保科技有限公司 | Grass planting ditch rain-water drainage piping lane system and construction method |
| CN108951816A (en) * | 2018-07-10 | 2018-12-07 | 上海佳长环保科技有限公司 | Ecology tree cell system and construction method |
| CN109183946A (en) * | 2018-10-30 | 2019-01-11 | 西安公路研究院 | A kind of sponge urban biology is detained facility and its construction method |
| CN109837974A (en) * | 2019-03-28 | 2019-06-04 | 昆山润之源环保技术有限公司 | A kind of construction method of rainwater retention device operation |
| CN110056071A (en) * | 2019-05-06 | 2019-07-26 | 济南城建集团有限公司 | A kind of municipal administration storm sewer assembling module and construction method |
| CN113123421A (en) * | 2021-03-17 | 2021-07-16 | 中建八局第二建设有限公司 | Ecological drought stream with functions of regulation, storage and purification |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547366A (en) * | 2018-04-23 | 2018-09-18 | 交通运输部科学研究院 | A kind of method of arid biogeographic zone highway rainwater-collecting |
| CN108867691A (en) * | 2018-07-10 | 2018-11-23 | 上海佳长环保科技有限公司 | Grass planting ditch rain-water drainage piping lane system and construction method |
| CN108951816A (en) * | 2018-07-10 | 2018-12-07 | 上海佳长环保科技有限公司 | Ecology tree cell system and construction method |
| CN108797757A (en) * | 2018-07-15 | 2018-11-13 | 天津大学 | A kind of buried biological delaying basin and its method for arranging based on original greenbelt |
| CN109183946A (en) * | 2018-10-30 | 2019-01-11 | 西安公路研究院 | A kind of sponge urban biology is detained facility and its construction method |
| CN109837974A (en) * | 2019-03-28 | 2019-06-04 | 昆山润之源环保技术有限公司 | A kind of construction method of rainwater retention device operation |
| CN110056071A (en) * | 2019-05-06 | 2019-07-26 | 济南城建集团有限公司 | A kind of municipal administration storm sewer assembling module and construction method |
| CN110056071B (en) * | 2019-05-06 | 2024-05-07 | 济南城建集团有限公司 | Municipal rainwater pipeline assembly module and construction method |
| CN113123421A (en) * | 2021-03-17 | 2021-07-16 | 中建八局第二建设有限公司 | Ecological drought stream with functions of regulation, storage and purification |
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