CN203905145U - Low greenbelt flow limiting facility for relieving urban small watershed waterlogging disaster - Google Patents
Low greenbelt flow limiting facility for relieving urban small watershed waterlogging disaster Download PDFInfo
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- CN203905145U CN203905145U CN201420068091.8U CN201420068091U CN203905145U CN 203905145 U CN203905145 U CN 203905145U CN 201420068091 U CN201420068091 U CN 201420068091U CN 203905145 U CN203905145 U CN 203905145U
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- greenbelt
- low
- low elevation
- facility
- basin
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000004567 concrete Substances 0.000 claims description 15
- 239000004576 sand Substances 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 4
- 239000004746 geotextile Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000007654 immersion Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 9
- 101100366940 Mus musculus Stom gene Proteins 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
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- 239000004568 cement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- 239000002352 surface water Substances 0.000 description 1
Abstract
The utility model discloses a low greenbelt flow limiting facility for relieving urban small watershed waterlogging disaster. The facility comprises a low greenbelt arranged on the periphery of a road; the edge of the low greenbelt is lower than the road pavement; the elevation of the low greenbelt is gradually reduced to the middle, so that a middle low-position zone for accumulating rainwater is formed; the middle low-position zone is provided with a catch basin communicated with a municipal drainage pipeline network. According to the low greenbelt flow limiting facility, rainwater in the road pavement is accumulated to the peripheral low greenbelt and is discharged into the municipal drainage pipeline network through the catch basin of the middle low-position zone. By adopting the design, the facility reduces water immersion duration of the low greenbelt, unwaters green land soil and reduces the quantity of roadside gutter inlets, simultaneously gives full play to the drainage capacity of the municipal drainage pipeline network, reduces siltation, easily responds to long-duration and heavy-rainfall intense fall, and effectively responds to the standard of the largest intense fall in 50 years required in a new edition urban drainage and waterlogging prevention outline, thereby radically changing the planning design of the low greenbelt and achieving the beneficial effect of relieving urban small watershed waterlogging disaster.
Description
Technical field
The utility model, for municipal sewerage engineering field, particularly relates to a kind of Low elevation greenbelt current limliting facility of alleviating city small watershed waterlogging disaster.
Background technology
Low elevation greenbelt (is called again " recessed greenery patches ", in the application, be referred to as " Low elevation greenbelt ") refer to relatively lower than surrounding ground or road surface (track, sidewalk, square mat formation face etc., be below referred to as road surface) absolute altitude, can put aside, under ooze self and periphery rainfall runoff greenery patches.The starting point of existing Low elevation greenbelt scheme is by Low elevation greenbelt, holds as much as possible stagnant rain flood, reduces runoff coefficient, oozes condition recharge of groundwater resource under creation, even take 100% to dam as target, wishes runoff coefficient to be reduced to zero.
There are following 3 limitation in above-mentioned thinking: 1. Low elevation greenbelt to the effect that reduces runoff coefficient along with heavy rain magnitude, rainfall pattern last and change, the rainfall pattern of existing research is many based on short duration Rain Intensity Formula Based, be difficult to the complete rainfall pattern of reflection comprehensively, the conclusion that its peak clipping obtaining, runoff coefficient are cut down is often with specific fringe conditions restriction, the runoff coefficient obtaining is also often less than normal, dynamic change reflection to runoff coefficient is not enough, thereby may bring adverse effect to section rainwater planning and designing.2. in order to descend possibly impregnation to fill groundwater resources as far as possible, certainly will extend rainwater in the holdup time in greenery patches, extend on the one hand the water logging time in greenery patches, affect greenery patches and use; Long-time delay has also taken the storage capacity of regulating and storing of Low elevation greenbelt on the other hand, has obviously reduced the peak clipping ability of tackling the rainfall pattern after main rainfall peak value leans on.3. descend milliosmolarity increase to mean to have reduced the rainwater flow of city planting ductwork, under low recurrence interval condition, Storm Sewer Network drainability is not fully utilized, draining and flushing ability weakens, easily increase pipeline alluvial situation, worsen the adaptibility to response of the high recurrence interval heavy rain of prominent chance, needed to increase the clear maintenance workload of dredging.
In addition, the municipal inlet for stom water of the overwhelming majority is arranged along road side at present, and former side entering type inlet for stom water, owing to forming escarpment among a small circle at inlet for stom water place, exists potential safety hazard, less employing, and what adopt at present is to put down into formula inlet for stom water.Road side inlet for stom water affects the planeness on road surface on the one hand, easily produces noise; In addition, road cleaning and close on retail shop and residential community situation under, be subject to stop up.
Moreover, the current brick or reinforced concrete structure of the many employings of catch-basin, the borehole wall is waterproof, particularly for the rainwater well head in Low elevation greenbelt, as the borehole wall can not be permeable, residual rainwater in can not the drainage periphery soil body, makes soil after the rain for a long time in saturation state, affects plant growth and utilization of area.
Utility model content
For addressing the above problem, the utility model provides a kind of Low elevation greenbelt water logging duration that reduces, and in the time of drainage soil of greenbelt and minimizing trackside inlet for stom water, gives full play to existing municipal drainage pipe network drainability, minimizing is silted up, alleviates the Low elevation greenbelt current limliting facility of city small watershed waterlogging disaster.
The utility model solves the technical scheme that its technical problem adopts: a kind of Low elevation greenbelt current limliting facility of alleviating city small watershed waterlogging disaster, comprise the Low elevation greenbelt of being located at road periphery, Low elevation greenbelt edge is lower than pavement of road, and to middle part, reducing gradually elevation to form the low spot region, middle part of collected rainwater, low spot region, middle part is provided with the catch-basin of connecting with municipal drainage pipe network.
Be further used as the improvement of technical solutions of the utility model, catch-basin adopts and puts down into formula catch-basin, and catch-basin forms the well edge higher than periphery Low elevation greenbelt mud face, and grid-like cover plate is set in well edge.
Be further used as the improvement of technical solutions of the utility model, the borehole wall of catch-basin adopts sand concrete free structure, and at arranged outside loaded filter.
Be further used as the improvement of technical solutions of the utility model, loaded filter comprises cobble layer and the granule layer that ecto-entad layering arranges, and the geotextiles that is wrapped in cobble layer and granule layer outside.
Be further used as the improvement of technical solutions of the utility model, the borehole wall bottom of catch-basin is provided with the outlet pipe of connecting with municipal drainage pipe network, and the entry position of the inherent outlet pipe of catch-basin is provided with current limliting lock.
Be further used as the improvement of technical solutions of the utility model, current limliting lock comprises base plate and some stoplogs, base plate upper end is provided with overflow water inlet breach, and forms slot post in the both sides of overflow water inlet breach, and the inner side of slot post is provided with the slot that guiding stoplog slips into overflow water inlet breach.
Be further used as the improvement of technical solutions of the utility model, stoplog is the rectangular straight beam in cross section, base plate forms the plane that can fit with stoplog in the bottom surface of overflow water inlet breach, slot is the V-shaped groove along slot post indent, and the termination, two ends of stoplog all forms the first orientation angle rib that can coordinate with V-shaped groove location.
Be further used as the improvement of technical solutions of the utility model, the shaft bottom of catch-basin is provided with draw-in groove, the bottom of base plate forms embedding draw-in groove and support baseboard rotates to open or cover the second orientation angle rib of outlet pipe around draw-in groove, and the bottom of base plate is also provided with some sluicing seams that penetrate base plate.
Be further used as the improvement of technical solutions of the utility model, the pavement of road slope aspect Low elevation greenbelt of Low elevation greenbelt periphery, the discrepancy in elevation of Low elevation greenbelt edge and pavement of road adopts flat gradient face transition.
Be further used as the improvement of technical solutions of the utility model, the below, shaft bottom of catch-basin is provided with substrate, and substrate comprises plain concrete basis and is positioned at the stone sand bed course of plain concrete basis downside.
The beneficial effects of the utility model: in the Low elevation greenbelt current limliting facility of this alleviation city small watershed waterlogging disaster, the rainwater of pavement of road is put aside the Low elevation greenbelt of periphery, and enters municipal drainage pipe network by the catch-basin in low spot region, middle part.The utility model is by above-mentioned design, can reach and reduce Low elevation greenbelt water logging duration, in the time of drainage soil of greenbelt and minimizing trackside inlet for stom water, give full play to existing municipal drainage pipe network drainability, minimizing is silted up, and calm reply length is lasted, the heavy rain of large rainfall, successfully manages new edition urban sewerage and drainage prevention waterlogging outline and requires to promote 50 years one chance Storm Rainfall Standards that reach, thereby in the planning and designing that fundamentally improved Low elevation greenbelt, reach the beneficial effect of alleviating city small watershed waterlogging disaster.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model plane structure schematic diagram;
Fig. 2 is the utility model the first embodiment longitudinal profile schematic diagram;
Fig. 3 is the utility model the first embodiment horizontal section schematic diagram;
Fig. 4 is the utility model the second embodiment longitudinal profile schematic diagram;
Fig. 5 is the utility model the second embodiment horizontal section schematic diagram;
Fig. 6 is the utility model current limliting brake structure schematic diagram;
Fig. 7 is A-A place sectional view in Fig. 6;
Fig. 8 is B-B place sectional view in Fig. 6;
Fig. 9 is the utility model stoplog structural representation.
The specific embodiment
With reference to Fig. 1～Fig. 9, the utility model provides a kind of Low elevation greenbelt current limliting facility of alleviating city small watershed waterlogging disaster, comprise the Low elevation greenbelt 2 of being located at road 1 periphery, Low elevation greenbelt 2 edges are lower than road 1 road surface, Low elevation greenbelt 2 is controlled at 30mm with the road 1 road boundary place discrepancy in elevation, and to middle part, reduce gradually elevation to form the low spot region, middle part of collected rainwater, low spot region, middle part is provided with the catch-basin 3 of connecting with municipal drainage pipe network, the below, shaft bottom of catch-basin 3 is provided with substrate, substrate comprises plain concrete basis 31 and is positioned at the stone sand bed course 32 of plain concrete basis 31 downsides.
Wherein, peripheral path 1 road surface slope aspect Low elevation greenbelt 2, rainwater is planar diffusing by road 1 road surface and enters Low elevation greenbelt 2, if any the outstanding boundary zone of road side stone, adopt the way of interval parting, between kerbstone, reserved row's mouth sews up Low elevation greenbelt 2, stitch wide 30～50mm, spacing 600～1200mm; When centre has sidewalk to intercept, under sidewalk, bury minor diameter rain pipe linking-up road 1 and Low elevation greenbelt 2 underground.Low elevation greenbelt 2 edges are lower than road 1 road surface 30mm, and to middle part, the ratio of slope with 0.5～10% reduces elevation gradually, to expand gradually effectively the regulate and store degree of depth and the volume of Low elevation greenbelt 2.
In the Low elevation greenbelt current limliting facility of this alleviation city small watershed waterlogging disaster, the rainwater on road 1 road surface is put aside the Low elevation greenbelt 2 of periphery, and enters municipal drainage pipe network by the catch-basin 3 in low spot region, middle part.The utility model is by above-mentioned design, can reach and (not only get rid of surface water reducing Low elevation greenbelt 2 water logging durations, still can regulate in time soil moisture content, avoid for a long time in saturation state), in the time of drainage soil of greenbelt and minimizing trackside inlet for stom water, give full play to existing municipal drainage pipe network drainability, minimizing is silted up, calm reply is long to last, the heavy rain of large rainfall, successfully manage new edition urban sewerage and drainage prevention waterlogging outline and require to promote the Storm Rainfall Standard of meeting for 50 years reaching, thereby in the planning and designing that fundamentally improved Low elevation greenbelt, reach the beneficial effect of alleviating city small watershed waterlogging disaster.
As the utility model preferred embodiment, catch-basin 3 adopts puts down into formula catch-basin (according to the collective area size of sharing, single grate or two grate well are set), the well edge 33 that catch-basin 3 forms higher than periphery Low elevation greenbelt 2 mud faces, and at the interior grid-like cover plate 34 that arranges of well edge 33.The function of catch-basin 3 is to collect the rain flood that Low elevation greenbelt 2 confluxes.Wherein, well edge 33 is higher than periphery greenery patches mud face 30mm, to prevent that silt particle from directly pouring in well; Well head arranges the cover plate 34 of self-locking ductile iron, as rain flood entrance and access hole, by grid-like design, to reduce plant leaf, enters in well;
As the utility model preferred embodiment, one of emphasis of the present utility model is, the borehole wall 35 of catch-basin 3 adopts the sand concrete free structure of good water permeability, the main difference part of sand concrete free structure and ordinary concrete is there is no fines, and only, with coarse aggregate, cement is in order to cover the surface of coarse aggregate, an and cementation, rather than filling space, so cement consumption is fewer than ordinary concrete, is generally 70～150kg/m
3, coarse aggregate is selected medium particle diameter (10～20mm), and should use evengranular gravel or rubble, and the water permeability of sand concrete free structure can reach 1mm/s magnitude.For the silt blocking of avoiding the sand concrete free structure borehole wall to be brought in soil, need loaded filter 36 be set outward at well, the thick cobble layer of 150mm (particle diameter 10mm) and the thick granule layer of 150mm (particle diameter 1～4mm) that loaded filter 36 is arranged by layering form, and block preventing in cobble layer and granule layer outsourcing geotextiles 37, form an infiltration vertical shaft, so that the Low elevation greenbelt 2 that is detained rain flood drainage in time after the rain avoids the soil body for a long time in saturation state, be beneficial to plant growth and greenery patches and use.
As the utility model preferred embodiment, the borehole wall 35 bottoms of catch-basin 3 are provided with the outlet pipe 4 of connecting with municipal drainage pipe network, and the entry position of the inherent outlet pipe 4 of catch-basin 3 is provided with current limliting lock 5.Current limliting lock 5 can be selected stoplog current limliting, lock hole current limliting, pipeline current limliting, weir current limliting etc.Wherein the most succinct practical with stoplog current limliting lock pattern, its function is to control flexibly the rain mighty torrent amount that enters Storm Sewer Network, reaches current limliting object, to alleviate downstream ductwork pressure and to alleviate city small watershed waterlogging.
Concrete, current limliting lock 5 comprises base plate 51 and some stoplogs 52, and base plate 51 upper ends are provided with overflow water inlet breach 53, and form slot post 54 in the both sides of overflow water inlet breach 53, and the inner side of slot post 54 is provided with the slot 55 that guiding stoplog 52 slips into overflow water inlet breach 53.Stoplog 52 is the rectangular straight beam in cross section, base plate 51 forms the plane that can fit with stoplog 52 in the bottom surface of overflow water inlet breach 53, slot 55 is the V-shaped groove along slot post 54 indents, and the termination, two ends of stoplog 52 all forms the first orientation angle rib 56 that can coordinate with V-shaped groove location.The shaft bottom of catch-basin 3 is provided with draw-in groove 38, and the bottom of base plate 51 forms embedding draw-in groove 38 and support baseboard 51 rotates to open or cover the second orientation angle rib 57 of outlet pipe 4 around draw-in groove 38.The utility model limits by the number of stoplog 52 on base plate 51 flow that catch-basin 3 enters outlet pipe 4; When in emergency circumstances, in the time of need to increasing rainwater conveyance capacity, the base plate of current limliting lock 5 51 can be toppled over to 4 pairs of outlet pipes and gone out side, can remove current-limiting function.
In addition, the bottom of base plate 51 is also provided with some sluicing seams 58 that penetrate base plate 51, to drain the ponding in net rainfall well 3, avoids mosquito to grow.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (8)
1. a Low elevation greenbelt current limliting facility of alleviating city small watershed waterlogging disaster, it is characterized in that: comprise the Low elevation greenbelt of being located at road periphery, described Low elevation greenbelt edge is lower than pavement of road, and to middle part, reduce gradually elevation to form the low spot region, middle part of collected rainwater, low spot region, described middle part is provided with the catch-basin of connecting with municipal drainage pipe network, the borehole wall of described catch-basin adopts sand concrete free structure, and at arranged outside loaded filter, described loaded filter comprises cobble layer and the granule layer that ecto-entad layering arranges, and the geotextiles that is wrapped in cobble layer and granule layer outside.
2. the Low elevation greenbelt current limliting facility of alleviation according to claim 1 city small watershed waterlogging disaster, it is characterized in that: described catch-basin adopts and puts down into formula catch-basin, described catch-basin forms the well edge higher than periphery Low elevation greenbelt mud face, and in described well edge, grid-like cover plate is set.
3. the Low elevation greenbelt current limliting facility of alleviation according to claim 1 and 2 city small watershed waterlogging disaster, it is characterized in that: the borehole wall bottom of described catch-basin is provided with the outlet pipe of connecting with municipal drainage pipe network, the entry position of the inherent outlet pipe of described catch-basin is provided with current limliting lock.
4. the Low elevation greenbelt current limliting facility of alleviation according to claim 3 city small watershed waterlogging disaster, it is characterized in that: described current limliting lock comprises base plate and some stoplogs, described base plate upper end is provided with overflow water inlet breach, and forming slot post in the both sides of described overflow water inlet breach, the inner side of described slot post is provided with the slot that guiding stoplog slips into overflow water inlet breach.
5. the Low elevation greenbelt current limliting facility of alleviation according to claim 4 city small watershed waterlogging disaster, it is characterized in that: described stoplog is the rectangular straight beam in cross section, described base plate forms the plane that can fit with stoplog in the bottom surface of overflow water inlet breach, described slot is the V-shaped groove along slot post indent, and the termination, two ends of described stoplog all forms the first orientation angle rib that can coordinate with V-shaped groove location.
6. the Low elevation greenbelt current limliting facility of alleviation according to claim 4 city small watershed waterlogging disaster, it is characterized in that: the shaft bottom of described catch-basin is provided with draw-in groove, the bottom of described base plate forms the described draw-in groove of embedding and support baseboard rotates to open or cover the second orientation angle rib of outlet pipe around draw-in groove, and the bottom of described base plate is also provided with some sluicing seams that penetrate base plate.
7. the Low elevation greenbelt current limliting facility of alleviation according to claim 1 and 2 city small watershed waterlogging disaster, it is characterized in that: the pavement of road slope aspect Low elevation greenbelt of described Low elevation greenbelt periphery, the discrepancy in elevation of Low elevation greenbelt edge and pavement of road adopts flat gradient face transition.
8. the Low elevation greenbelt current limliting facility of alleviation according to claim 1 and 2 city small watershed waterlogging disaster, is characterized in that: the below, shaft bottom of described catch-basin is provided with substrate, and described substrate comprises plain concrete basis and is positioned at the stone sand bed course of plain concrete basis downside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068091.8U CN203905145U (en) | 2014-02-17 | 2014-02-17 | Low greenbelt flow limiting facility for relieving urban small watershed waterlogging disaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068091.8U CN203905145U (en) | 2014-02-17 | 2014-02-17 | Low greenbelt flow limiting facility for relieving urban small watershed waterlogging disaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905145U true CN203905145U (en) | 2014-10-29 |
Family
ID=51779434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420068091.8U Expired - Lifetime CN203905145U (en) | 2014-02-17 | 2014-02-17 | Low greenbelt flow limiting facility for relieving urban small watershed waterlogging disaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203905145U (en) |
-
2014
- 2014-02-17 CN CN201420068091.8U patent/CN203905145U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510060 Guangdong, Guangzhou City, East Central Road, Municipal Services Building, East staircase, No. 348 Patentee after: GUANGZHOU MUNICIPAL ENGINEERING DESIGN & Research Institute Address before: 510060 Guangdong, Guangzhou City, East Central Road, Municipal Services Building, East staircase, No. 348 Patentee before: GUANGZHOU MUNICIPAL ENG DESIGN & Research Institute |
|
| CP03 | Change of name, title or address |
Address after: 510060 East seat, No. 348 East Ring Road, Guangzhou, Guangdong, Yuexiu District Patentee after: GUANGZHOU MUNICIPAL ENGINEERING DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address before: 510060 East staircase, Municipal Services Building, 348 East Ring Road, Guangzhou, Guangdong Patentee before: GUANGZHOU MUNICIPAL ENGINEERING DESIGN & Research Institute |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |
|
| CX01 | Expiry of patent term |