CN105184484A - Rainwater low impact development planning method and device - Google Patents
Rainwater low impact development planning method and device Download PDFInfo
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- CN105184484A CN105184484A CN201510563320.2A CN201510563320A CN105184484A CN 105184484 A CN105184484 A CN 105184484A CN 201510563320 A CN201510563320 A CN 201510563320A CN 105184484 A CN105184484 A CN 105184484A
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Abstract
The invention discloses a rainwater low impact development (LID) planning method and a rainwater LID planning device. The rainwater LID planning method comprises the steps of: acquiring annual rainwater runoff coefficients of plots in a planning area and a runoff peak value of the planning area; planning rainwater facilities as an impact factor of each plot into the plot; calculating annual rainwater runoff coefficients of the plots added with the rainwater facilities and a runoff peak value of the planning area; judging whether the annual rainwater runoff coefficients are within a first preset range, and judging whether the runoff peak value is within a second preset range, if so, optimizing layout of the rainwater facilities in the planning area by adopting a rainwater facility optimization algorithm, otherwise, adjusting layout of the rainwater facilities in the planning area by adopting a rainwater facility adjustment algorithm. The rainwater LID planning method and the rainwater LID planning device achieve the modeling of a planning scheme after adding the rainwater facilities, can be used for planning the rainwater facilities in the planning area, and can optimize and adjust the layout of the rainwater facilities in the planning area according to the runoff coefficients of the plots and the runoff peak value of the planning area.
Description
Technical field
The present invention relates to Planning of rainwater project technical field, particularly relate to planing method and the device of the low impact exploitation of a kind of rainwater.
Background technology
Low impact exploitation (LID) is a kind of Storm Water Management and pollution of area source treatment technology, be intended to by dispersion, small-scale Sources controlling reaches the control of runoff and the pollution produced heavy rain, makes development area as far as possible close to natural hydrologic cycle.And not do not affect exploitation realize mathematical model fractional analysis to rainwater is low in prior art, and simulation planning is carried out to the stormwater facility of planning region, make the low development plan that affects of existing rainwater cannot perform follow-up construction plan to existing planning region by model analysis, also cannot do corresponding optimization and adjustment to the stormwater facility in planning region.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the planning application existing planning region not being carried out to mathematical model in prior art, and simulation planning is not carried out to the stormwater facility of planning region, make it cannot do the corresponding defect optimized and adjust to the stormwater facility in planning region, planing method and the device of the low impact exploitation of a kind of rainwater are provided.
The present invention is solved the problems of the technologies described above by following technical proposals:
A planing method for the low impact exploitation of rainwater, its feature is, comprises the following steps:
S
1, obtain the year rainfall runoff coefficient and the runoff peak value of described planning region in each plot of planning region;
S
2, using stormwater facility as the factor of influence planning in described plot in described plot;
S
3, according to described year rainfall runoff coefficient and the runoff peak value of described planning region calculate the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after adding stormwater facility;
S
4, judge to add the plot after stormwater facility year rainfall runoff coefficient whether in one first preset range, and whether the runoff peak value judging to add the described planning region after stormwater facility is in one second preset range, if be, then adopt the layout of the stormwater facility in a stormwater facility optimized algorithm optimization planning district, otherwise, adopt the layout of the stormwater facility in a stormwater facility adjustment algorithm revised planning district;
Wherein, the stormwater facility of described planning region comprises grass-planting ecological ditch, concave herbaceous field, Rain Garden, Green Roof, underground store ooze, one or more in porous pavement, storm detention tank, it is one or more that the factor of influence in described plot also comprises in soil, shrub, road, waters and house.
In this programme, according to Nei Ge plot, planning region year rainfall runoff coefficient and planning region in runoff peak value, adopt existing planning algorithm to the runoff peak value adding the calculating of the plot after stormwater facility year rainfall runoff coefficient and planning region, thus whether meet planning requirement judge adding stormwater facility, achieve the planning of the stormwater facility to planning region, according to the drainage ratio in plot after planning and the runoff peak value of planning region, the layout of the stormwater facility of planning region can be done and optimizes and adjust.
In addition, stormwater facility optimized algorithm and stormwater facility adjustment algorithm are the algorithm that the projecting parameter aspect such as quantity, area, layout, the water storage degree of depth of the existing stormwater facility to planning region is allocated again.
Preferably, step S
3comprise:
S
31, give the element in a weight set respectively to each factor of influence adding the plot after stormwater facility;
S
32, adopt a runoff algorithm to calculate to add the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after stormwater facility.
Also be, weight is given to each factor of influence adding the plot after stormwater facility, and select concrete drainage ratio account form according to the stormwater facility added, different stormwater facility, the computing method adopted are different, be finally to weighting after each factor of influence ask its average, thus obtain the year rainfall runoff coefficient and the runoff peak value of planning region adding the plot after stormwater facility, improve the planning rationality to stormwater facility.
And runoff algorithm is the algorithm that the existing factor of influence according to plot calculates the drainage ratio in plot.
Preferably, described first preset range be untapped ground corresponding to the plot after adding stormwater facility year rainfall runoff coefficient scope, described second preset range is the scope of the runoff peak value on the untapped ground that the planning region after adding stormwater facility is corresponding.
Preferably, the parameter of described stormwater facility optimized algorithm comprises the quantity of the stormwater facility in planning region, the area of the stormwater facility in planning region, the water-storage depth of the stormwater facility in planning region.
Preferably, the parameter of described stormwater facility adjustment algorithm comprises the quantity of the stormwater facility in planning region, the area of the stormwater facility in planning region, the water-storage depth of the stormwater facility in planning region.
The invention provides the device for planning of the low impact exploitation of a kind of rainwater, its feature is, comprises an acquisition module, a planning module, a computing module and a judge module;
Described acquisition module is for obtaining the year rainfall runoff coefficient and the runoff peak value of described planning region in each plot of planning region;
Described planning module is used for stormwater facility as in a factor of influence planning to described plot in described plot;
Described computing module be used for according to described year rainfall runoff coefficient and the runoff peak value of described planning region calculate the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after adding stormwater facility;
Described judge module for judge the plot after adding stormwater facility year rainfall runoff coefficient whether in one first preset range, and whether the runoff peak value judging to add the described planning region after stormwater facility is in one second preset range, if be, then adopt the layout of the stormwater facility in a stormwater facility optimized algorithm optimization planning district, otherwise, adopt the layout of the stormwater facility in a stormwater facility adjustment algorithm revised planning district;
Wherein, the stormwater facility of described planning region comprises grass-planting ecological ditch, concave herbaceous field, Rain Garden, Green Roof, underground store ooze, one or more in porous pavement, storm detention tank, it is one or more that the factor of influence in described plot also comprises in soil, shrub, road, waters and house.
Preferably, described computing module comprises a weight setting module and a runoff algorithm module;
Described weight setting module is used for the element given respectively each factor of influence adding the plot after stormwater facility in a weight set;
Described runoff algorithm module is for adopting a runoff algorithm to calculate to add the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after stormwater facility.
Positive progressive effect of the present invention is: the present invention can calculate the year rainfall runoff coefficient and the runoff peak value of planning region in the plot after adding stormwater facility, and whether planning requirement is met to the plot adding stormwater facility judge, achieve the modelling to adding the programme after stormwater facility, can plan the stormwater facility of planning region, can also according to the drainage ratio in plot after planning and the runoff peak value of planning region, the layout of the stormwater facility of planning region is done and optimizes and adjust, the planning rationality of the stormwater facility of planning can also be reflected further.
Accompanying drawing explanation
Fig. 1 is the planing method process flow diagram of the low impact exploitation of one embodiment of the invention rainwater.
Fig. 2 is the structural representation of the device for planning of the low impact exploitation of one embodiment of the invention rainwater.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
The present embodiment provides the planing method of the low impact exploitation of a kind of rainwater, as shown in Figure 1, comprises the following steps:
Step 101, obtain the year rainfall runoff coefficient and the runoff peak value of described planning region in each plot of planning region;
Wherein, it is one or more that the factor of influence in described plot comprises in soil, shrub, road, waters and house, the stormwater facility of described planning region comprises grass-planting ecological ditch, concave herbaceous field, Rain Garden, Green Roof, underground store ooze, porous pavement, storm detention tank.
And drainage ratio refers to the ratio of yielding flow (millimeter) and quantity of precipitation (millimeter) in certain water catchment area, this ratio is between 0 ~ 1, and year rainfall runoff coefficient refer to the mean value of the drainage ratio of rainwater in a year, runoff peak value refers to the peak value of the total Water passed through in certain period.
Step 102, using stormwater facility as the factor of influence planning in described plot in described plot;
This step is to form the preliminary planning scheme of the stormwater facility of planning region, and the planning that the present embodiment refers to, be by one or more stormwater facility construction in plot, those stormwater facilities may be replace intramassif one or more factor of influence, also may be that intramassif each factor of influence acts synergistically with this.Such as, when stormwater facility planning is to plot, the place of road may be originally, be replaced by stormwater facility now, or Rain Garden construction is first-class on the roof in a house.
Step 103, according to described year rainfall runoff coefficient and the runoff peak value of described planning region calculate the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after adding stormwater facility;
Concrete computing method are:
Step 1031, give the element in a weight set respectively to each factor of influence adding the plot after stormwater facility;
For different stormwater facilities, have the method for different imparting weights, but the weight of giving is carried out according to the low specification affecting development project of rainwater.
Step 1032, adopt a runoff algorithm to calculate to add the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after stormwater facility.
After imparting weight, its average is asked to each factor of influence in plot, thus obtain the year rainfall runoff coefficient and the runoff peak value of planning region adding the plot after stormwater facility, improve the planning rationality to stormwater facility.
Step 104, judge to add the plot after stormwater facility year rainfall runoff coefficient whether in one first preset range, and whether the runoff peak value judging to add the described planning region after stormwater facility is in one second preset range, if be, then adopt the layout of the stormwater facility in a stormwater facility optimized algorithm optimization planning district, otherwise, adopt the layout of the stormwater facility in a stormwater facility adjustment algorithm revised planning district;
The tentative programme of planning is assessed, also namely assesses this tentative programme and whether can reach the object of planning.Wherein, described first preset range be untapped ground corresponding to the plot after adding stormwater facility year rainfall runoff coefficient scope, described second preset range is the scope of the runoff peak value on the untapped ground that the planning region after adding stormwater facility is corresponding.The parameter of described stormwater facility optimized algorithm and described stormwater facility adjustment algorithm includes the quantity of the stormwater facility in planning region, the area of the stormwater facility in planning region, the water-storage depth of the stormwater facility in planning region.
Also be, for the plot after the planning meeting planning requirement, stormwater facility optimized algorithm can be used to be optimized to this intramassif stormwater facility, concrete optimal way is: the quantity reducing the stormwater facility in planning region, reduce the area of the stormwater facility in planning region, reduce the water-storage depth of the stormwater facility in planning region, optimize the layout etc. of those stormwater facilities.And for the facility after the combination not meeting planning requirement, stormwater facility adjustment algorithm can be used to adjust to those stormwater facilities in combination, concrete adjustment mode is: the quantity increasing the stormwater facility in planning region, increase the area of the stormwater facility in planning region, increase the water-storage depth of the stormwater facility in planning region, adjust the layout etc. of those stormwater facilities.
The present embodiment also provides the device for planning of the low impact exploitation of a kind of rainwater, as shown in Figure 2, comprises acquisition module 1, planning module 2, computing module 3 and a judge module 4;
Described acquisition module 1 is for obtaining the year rainfall runoff coefficient and the runoff peak value of described planning region in each plot of planning region;
Described planning module 2 is for planning stormwater facility to described plot as a factor of influence in described plot;
Described computing module 3 for according to described year rainfall runoff coefficient and the runoff peak value of described planning region calculate the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after adding stormwater facility;
Particularly, described computing module 3 comprises weight setting module 31 and a runoff algorithm module 32;
Described weight setting module 31 is for giving the element in a weight set respectively to each factor of influence adding the plot after stormwater facility;
Described runoff algorithm module 32 is for adopting a runoff algorithm to calculate to add the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after stormwater facility.
In addition, described judge module 4 for judge the plot after adding stormwater facility year rainfall runoff coefficient whether in one first preset range, and whether the runoff peak value judging to add the described planning region after stormwater facility is in one second preset range, if be, then adopt the layout of the stormwater facility in a stormwater facility optimized algorithm optimization planning district, otherwise, adopt the layout of the stormwater facility in a stormwater facility adjustment algorithm revised planning district;
Wherein, the stormwater facility of described planning region comprises grass-planting ecological ditch, concave herbaceous field, Rain Garden, Green Roof, underground store ooze, one or more in porous pavement, storm detention tank, it is one or more that the factor of influence in described plot also comprises in soil, shrub, road, waters and house.
Visible, the present embodiment can calculate the year rainfall runoff coefficient and the runoff peak value of planning region in the plot after adding stormwater facility, and whether planning requirement is met to the plot adding stormwater facility judge, achieve the modelling to adding the programme after stormwater facility, can plan the stormwater facility of planning region, according to the drainage ratio in plot after planning and the runoff peak value of planning region, the layout of the stormwater facility of planning region can also be done and optimizes and adjust.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (7)
1. a planing method for the low impact exploitation of rainwater, is characterized in that, comprise the following steps:
S
1, obtain the year rainfall runoff coefficient and the runoff peak value of described planning region in each plot of planning region;
S
2, using stormwater facility as the factor of influence planning in described plot in described plot;
S
3, according to described year rainfall runoff coefficient and the runoff peak value of described planning region calculate the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after adding stormwater facility;
S
4, judge to add the plot after stormwater facility year rainfall runoff coefficient whether in one first preset range, and whether the runoff peak value judging to add the described planning region after stormwater facility is in one second preset range, if be, then adopt the layout of the stormwater facility in a stormwater facility optimized algorithm optimization planning district, otherwise, adopt the layout of the stormwater facility in a stormwater facility adjustment algorithm revised planning district;
Wherein, the stormwater facility of described planning region comprises grass-planting ecological ditch, concave herbaceous field, Rain Garden, Green Roof, underground store ooze, one or more in porous pavement, storm detention tank, it is one or more that the factor of influence in described plot also comprises in soil, shrub, road, waters and house.
2. planing method as claimed in claim 1, is characterized in that, step S
3comprise:
S
31, give the element in a weight set respectively to each factor of influence adding the plot after stormwater facility;
S
32, adopt a runoff algorithm to calculate to add the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after stormwater facility.
3. planing method as claimed in claim 1, it is characterized in that, described first preset range be untapped ground corresponding to the plot after adding stormwater facility year rainfall runoff coefficient scope, described second preset range is the scope of the runoff peak value on the untapped ground that the planning region after adding stormwater facility is corresponding.
4. planing method as claimed in claim 1, it is characterized in that, the parameter of described stormwater facility optimized algorithm comprises the quantity of the stormwater facility in planning region, the area of the stormwater facility in planning region, the water-storage depth of the stormwater facility in planning region.
5. as the planing method in claim 1-4 as described in any one, it is characterized in that, the parameter of described stormwater facility adjustment algorithm comprises the quantity of the stormwater facility in planning region, the area of the stormwater facility in planning region, the water-storage depth of the stormwater facility in planning region.
6. a device for planning for the low impact exploitation of rainwater, is characterized in that, comprise an acquisition module, a planning module, a computing module and a judge module;
Described acquisition module is for obtaining the year rainfall runoff coefficient and the runoff peak value of described planning region in each plot of planning region;
Described planning module is used for stormwater facility as in a factor of influence planning to described plot in described plot;
Described computing module be used for according to described year rainfall runoff coefficient and the runoff peak value of described planning region calculate the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after adding stormwater facility;
Described judge module for judge the plot after adding stormwater facility year rainfall runoff coefficient whether in one first preset range, and whether the runoff peak value judging to add the described planning region after stormwater facility is in one second preset range, if be, then adopt the layout of the stormwater facility in a stormwater facility optimized algorithm optimization planning district, otherwise, adopt the layout of the stormwater facility in a stormwater facility adjustment algorithm revised planning district;
Wherein, the stormwater facility of described planning region comprises grass-planting ecological ditch, concave herbaceous field, Rain Garden, Green Roof, underground store ooze, one or more in porous pavement, storm detention tank, it is one or more that the factor of influence in described plot also comprises in soil, shrub, road, waters and house.
7. device for planning as claimed in claim 6, it is characterized in that, described computing module comprises a weight setting module and a runoff algorithm module;
Described weight setting module is used for the element given respectively each factor of influence adding the plot after stormwater facility in a weight set;
Described runoff algorithm module is for adopting a runoff algorithm to calculate to add the year rainfall runoff coefficient and the runoff peak value of described planning region in the plot after stormwater facility.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510563320.2A CN105184484A (en) | 2015-09-07 | 2015-09-07 | Rainwater low impact development planning method and device |
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| CN201510563320.2A CN105184484A (en) | 2015-09-07 | 2015-09-07 | Rainwater low impact development planning method and device |
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| CN108288102A (en) * | 2017-01-10 | 2018-07-17 | 黄玉珠 | Low influence development facility Optimal Configuration Method based on sponge urban construction |
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| CN110232472A (en) * | 2019-05-21 | 2019-09-13 | 天津大学 | A kind of low Multipurpose Optimal Method for influencing Development allocation |
| CN110805109A (en) * | 2019-10-21 | 2020-02-18 | 上海市政工程设计研究总院（集团）有限公司 | Method for calculating volume of storage and regulation facility based on rainwater reuse rate |
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Application publication date: 20151223 |