CN116011676A - Design method of urban interior landscape water storage treatment scheme in arid region - Google Patents
Design method of urban interior landscape water storage treatment scheme in arid region Download PDFInfo
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- CN116011676A CN116011676A CN202310086791.3A CN202310086791A CN116011676A CN 116011676 A CN116011676 A CN 116011676A CN 202310086791 A CN202310086791 A CN 202310086791A CN 116011676 A CN116011676 A CN 116011676A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000003860 storage Methods 0.000 title claims abstract description 17
- 238000013461 design Methods 0.000 title claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 14
- 230000036571 hydration Effects 0.000 claims abstract description 4
- 238000006703 hydration reaction Methods 0.000 claims abstract description 4
- 238000004364 calculation method Methods 0.000 claims description 6
- 239000008235 industrial water Substances 0.000 claims description 6
- 238000004088 simulation Methods 0.000 claims description 6
- 241000195493 Cryptophyta Species 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000005457 optimization Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000013441 quality evaluation Methods 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 241000192710 Microcystis aeruginosa Species 0.000 abstract description 4
- 238000005067 remediation Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 4
- 230000009466 transformation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The invention discloses a design method of a water storage and hydration treatment scheme in an arid area city, which relates to the field of urban internal water area remediation and comprises the following steps: s1: collecting main water area data T located in city Main unit And branch river data T Support frame The method comprises the steps of carrying out a first treatment on the surface of the S2: will T Main unit Taking in the internal landscape pre-construction model to obtain initial internal landscape data F Initially, the method comprises The method comprises the steps of carrying out a first treatment on the surface of the S4: for F Initially, the method comprises Optimizing with water quality condition as target to obtain optimized internal view data F Excellent (excellent) And corresponding abatement schemes. According to the method, the data of the main river channel and the branch river channel in the city are used for obtaining initial internal view data by using an internal view pre-construction model, and then the initial internal view data is optimized to obtain a construction and treatment scheme of internal view storage hydration in the city; whole squareThe method is scientific and reasonable, can effectively reduce the probability of problems of unqualified water quality, frequent water bloom and the like of the internal landscape after construction and treatment, and ensures the reasonable utilization of urban water resources in arid areas.
Description
Technical Field
The invention relates to the field of urban internal water area remediation, in particular to a design method of an urban internal landscape water storage and treatment scheme in arid areas.
Background
In arid and semiarid regions in north of China, because of the reasons of less annual precipitation, uneven distribution in the precipitation year, excessive water resource utilization intensity and the like, the flow of a plurality of rivers is greatly reduced compared with the natural condition, even the phenomenon of cutoff occurs, a series of ecological environment problems are caused, and the rivers are urgently treated. After the river reach is subjected to landscape water storage transformation, the river always has ecological environment problems, and the problems are mainly represented by water quality problems, such as the phenomena that the water quality is not up to standard, water bloom frequently occurs, and the like, so that a large water quality management and protection burden is caused, and the water landscape is influenced. The reason is unexpected due to the existence of larger pollution sources and the like, and the water storage modification scheme of the river landscape is possibly related to the inexhaustibility and the rationality of the water storage modification scheme of the river landscape.
The prior art still stays in a qualitative analysis stage for river landscape water storage transformation, the establishment of a treatment scheme has larger discretion, the establishment of the treatment scheme is not quantified, and a scientific design method for internal landscape water storage transformation is lacked. The water environment problems of the water quality substandard, frequent water bloom and the like of the landscape impounded river reach formed after treatment can still occur, the water landscape and the living environment are affected, and the water environment treatment burden is increased.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a scientific and quantitative design method for a urban interior landscape water storage and treatment scheme in arid areas.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the design method for the urban interior landscape water storage treatment scheme in the arid region comprises the following steps:
s1: collecting main water area data T located in city Main unit And branch river data T Support frame ；
S2: will T Main unit Taking in the internal landscape pre-construction model to obtain initial internal landscape data F Initially, the method comprises ；
T Main unit Length L of main river channel Main unit The cross-sectional flow Q of any position in the main river channel and the cross-sectional area S of any position in the main river channel;
pre-building n internal view lakes on a main river channel, and numbering the pre-built internal view lakes: k (k) 1 ，k 2 ，…，k i ，…，k n ；
S3: the branch river data which are positioned at the same position with the internal view lake are removed, and the simplified branch river data T 'are obtained' Support frame ；
S4: for F Initially, the method comprises Optimizing with water quality condition as target to obtain optimized internal view data F Excellent (excellent) And corresponding abatement schemes.
Further, the internal view pre-construction model is:
wherein ,
is the kth i Distance between the individual scenic lake and the starting point of the main river channel,/->
Is the kth i-1 The flow of the cross section at the tail end of each internal view lake; />
Is the kth i+1 The flow of the cross section at the tail end of each internal view lake; />
Is the kth i+1 Cross-sectional area of the end of the internal view lake.
Further, the number n of the internal scenery lakes and the length L of the main river channel Main unit The following formula is satisfied:
n＝log a L main unit +b；
Wherein a is a city influence factor and b is a correction factor.
Further, the step S4 includes the following specific steps:
s41: floor area for setting internal landscape lake
And average depth +.>
S42: will be
F Initially, the method comprises and T'Support frame Performing water quality space-time simulation together to obtain the water quality condition of the internal view lake; judging whether the water quality condition of the internal view lake is smaller than a set threshold value, if so, entering step S44; otherwise, step S43 is entered;
s43: resetting and optimizing
and FInitially, the method comprises Returning to step S42;
s44: output of
and FInitially, the method comprises Obtaining F Excellent (excellent) 。
Further, the occupied area of the internal landscape lake is set
And average depth +.>
The following formula is satisfied:
wherein y is a natural number.
Further, in step S43
and FInitially, the method comprises The water quality evaluation model is satisfied when the optimization is carried out: />
wherein ,QStarting from the beginning The section flow is the section flow of the starting point of the main river channel; s is S Starting from the beginning The cross-sectional area of the starting point of the main river channel; q (Q) j-branch The section flow of the tail end of the j-th branch river channel; s is S j-branch The section area of the j-th branch river is the section area of the tail end of the j-th branch river, and m is the data T 'of the simplified branch river' Support frame The number of medium branch river channels; q (Q) Inferior quality The kth obtained for space-time simulation i Poor water section flow at the tail end of each internal landscape lake; u (u) i Is the kth i The water quality weight coefficient of each internal landscape lake;
u i ＝w i +g i +b i ；
wherein ,wi Is the kth i Dynamic water resource weight of internal scenery lake g i Is the kth i Economic weight around river channel of internal view lake b i Is the kth i Ecological environment weight of each internal view lake.
Further, dynamic water resource weight w i The calculation method of (1) is as follows:
wherein ,QPowder (D) The section flow of the tail end of the main river channel; s is S Powder (D) Is the cross-sectional area of the tail end of the main river channel.
Further, economic weight g around river channel i The water consumption weight around the river channel is as follows:
wherein ,
is the kth i Living water consumption of the lakes with the internal scenery; />
Is the kth i Industrial water consumption of the internal scenery lake; />
Is the kth i Agricultural water consumption of the internal scenery lakes; />
The water consumption is used for living in a main river channel; />
Industrial water consumption of a main river channel; />
Agricultural water consumption for a main river channel; />
The living water consumption of the j-th branch river is used;
the living water consumption of the j-th branch river is used; />
The water consumption for living in the j-th branch river channel.
Further, ecological environment weight b i The calculation method of (1) is as follows:
wherein ,SWater net Is the area of the water network in the city.
Further, the treatment scheme comprises one or more of dredging bottom mud, mechanical algae removal, diversion and flushing, water regulation, river aeration reoxygenation, a biomembrane method, a bioremediation method, a land treatment method or an aquatic plant purification method.
The beneficial effects of the invention are as follows:
according to the method, the data of the main river channel and the branch river channel in the city are used for obtaining initial internal view data by using an internal view pre-construction model, and then the initial internal view data is optimized to obtain a construction and treatment scheme of internal view storage hydration in the city; the whole method is scientific and reasonable, can effectively reduce the probability of problems of unqualified water quality, frequent water bloom and the like of the internal landscape after construction and treatment, and ensures the reasonable utilization of urban water resources in arid areas.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
As shown in fig. 1, the design method of the urban interior landscape water storage treatment scheme in the arid region comprises the following steps:
s1: collecting main water area data T located in city Main unit And branch river data T Support frame ；
S2: will T Main unit Taking in the internal landscape pre-construction model to obtain initial internal landscape data F Initially, the method comprises The method comprises the steps of carrying out a first treatment on the surface of the The internal landscape pre-construction model is as follows:
wherein ,
is the kth i Distance between the individual scenic lake and the starting point of the main river channel,/->
Is the kth i-1 The flow of the cross section at the tail end of each internal view lake; />
Is the kth i+1 The flow of the cross section at the tail end of each internal view lake; />
Is the kth i+1 Cross-sectional area of the end of the internal view lake.
T Main unit Length L of main river channel Main unit The cross-sectional flow Q of any position in the main river channel and the cross-sectional area S of any position in the main river channel; t (T) Support frame The method comprises the length of a branch river, the section flow rate of any position in the branch river and the section area of any position in the branch river;
pre-building n internal view lakes on a main river channel, and numbering the pre-built internal view lakes: k (k) 1 ，k 2 ，…，k i ，…，k n The method comprises the steps of carrying out a first treatment on the surface of the The construction of the internal landscape lake mainly comprises the steps of digging out a lake pit with required area and depth near a water area, and arranging a river blocking facility at the tail end of the internal landscape lake, wherein the river blocking facility comprises a sluice, a separation dike and a rolling dam. The cross-sectional flow of the tail end of the internal view lake is controlled by adjusting the water discharge amount of the river blocking device, and the cross-sectional area of the tail end of the internal view lake is the cross-sectional area of the river blocking facility.
The number n of the internal scenery lakes and the length L of the main river channel Main unit The following formula is satisfied:
n＝log a L main unit +b；
Wherein a is a city influence factor and b is a correction factor.
S3: the branch river data which are positioned at the same position with the internal view lake are removed, and the simplified branch river data T 'are obtained' Support frame ；
S4: for F Initially, the method comprises Optimizing with water quality condition as target to obtain optimized internal view data F Excellent (excellent) And corresponding abatement schemes.
S41: set up interior view lakeIs of the floor area of (a)
And average depth +.>
Floor area for setting internal landscape lake
And average depth +.>
The following formula is satisfied:
wherein y is a natural number.
S42: will be
F Initially, the method comprises and T'Support frame Carrying out water quality space-time simulation by bringing the water quality simulation software into the water quality simulation software, and simulating to obtain the water quality condition of the scenic lake in the period of 3-5 years; the water quality simulation software adopts a three-dimensional environment fluid dynamic program EFDC; judging whether the water quality condition of the internal view lake is smaller than a set threshold value, if so, entering step S44; otherwise, step S43 is entered;
s43: resetting and optimizing
and FInitially, the method comprises Returning to step S42;
for a pair of
and FInitially, the method comprises The water quality evaluation model is satisfied when the optimization is carried out:
wherein ,QStarting from the beginning The section flow is the section flow of the starting point of the main river channel; s is S Starting from the beginning The cross-sectional area of the starting point of the main river channel; q (Q) j-branch The section flow of the tail end of the j-th branch river channel; s is S j-branch The section area of the j-th branch river is the section area of the tail end of the j-th branch river, and m is the data T 'of the simplified branch river' Support frame The number of medium branch river channels; q (Q) Inferior quality The kth obtained for space-time simulation i Poor water section flow at the tail end of each internal landscape lake; u (u) i Is the kth i The water quality weight coefficient of each internal landscape lake;
u i ＝w i +g i +b i ；
wherein ,wi Is the kth i Dynamic water resource weight of internal scenery lake g i Is the kth i Economic weight around river channel of internal view lake b i Is the kth i Ecological environment weight of each internal view lake.
Dynamic water resource weight w i The calculation method of (1) is as follows:
wherein QPowder (D) The section flow of the tail end of the main river channel; s is S Powder (D) Is the cross-sectional area of the tail end of the main river channel.
Economic weight g around river channel i The water consumption weight around the river channel is as follows:
wherein ,
is the kth i Living water consumption of the lakes with the internal scenery; />
Is the kth i Industrial water consumption of the internal scenery lake; />
Is the kth i Agricultural water consumption of the internal scenery lakes; />
The water consumption is used for living in a main river channel; />
Industrial water consumption of a main river channel; />
Agricultural water consumption for a main river channel; />
The living water consumption of the j-th branch river is used;
the living water consumption of the j-th branch river is used; />
The water consumption for living in the j-th branch river channel.
Ecological environment weight b i The calculation method of (1) is as follows:
wherein ,SWater net Is the area of the water network in the city.
S44: output of
and FInitially, the method comprises Obtaining F Excellent (excellent) 。
Meanwhile, outputting a treatment scheme, wherein the treatment scheme comprises one or more of dredging bottom mud, mechanical algae removal, water diversion and dredging, water regulation, river aeration reoxygenation, a biological membrane method, a bioremediation method, a land treatment method and an aquatic plant purification method.
Claims (10)
1. A design method of a landscape water storage treatment scheme in a arid region city is characterized by comprising the following steps:
s1: collecting main water area data T located in city Main unit And branch river data T Support frame ；
S2: will T Main unit Taking in the internal landscape pre-construction model to obtain initial internal landscape data F Initially, the method comprises ；
The T is Main unit Length L of main river channel Main unit The cross-sectional flow Q of any position in the main river channel and the cross-sectional area S of any position in the main river channel;
pre-building n internal view lakes on a main river channel, and numbering the pre-built internal view lakes: k (k) 1 ，k 2 ，…，k i ，…，k n ；
S3: the branch river data which are positioned at the same position with the internal view lake are removed, and the simplified branch river data T 'are obtained' Support frame ；
S4: for F Initially, the method comprises Optimizing with water quality condition as target to obtain optimized internal view data F Excellent (excellent) And corresponding abatement schemes.
2. The method for designing an urban interior landscape hydration treatment scheme in arid regions according to claim 1, wherein the interior landscape pre-construction model is:
wherein ,
is the kth i Distance between the individual scenic lake and the starting point of the main river channel,/->
Is the kth i-1 The flow of the cross section at the tail end of each internal view lake; />
Is the kth i+1 The flow of the cross section at the tail end of each internal view lake; />
Is the kth i+1 Cross-sectional area of the end of the internal view lake.
3. The method for designing urban interior landscape water storage management scheme in arid region according to claim 1, wherein the number n of interior landscape lakes and the length L of main river Main unit The following formula is satisfied:
n＝log a L main unit +b；
Wherein a is a city influence factor and b is a correction factor.
4. The method for designing a landscape water conservation and management scheme in a arid area city according to claim 1, wherein the step S4 comprises the following specific steps:
s41: floor area for setting internal landscape lake
And average depth +.>
S42: will be
F Initially, the method comprises and T'Support frame Performing water quality space-time simulation together to obtain the water quality condition of the internal view lake; judging whether the water quality condition of the internal view lake is smaller than a set threshold value, if so, entering step S44; otherwise, step S43 is entered;
s43: resetting and optimizing
and FInitially, the method comprises Returning to step S42; />
S44: output of
and FInitially, the method comprises Obtaining F Excellent (excellent) 。
5. The method for designing an urban interior landscape water conservation treatment scheme in arid regions according to claim 4, wherein the land occupation area of the landscape lakes in the arid regions is set
And average depth +.>
The following formula is satisfied:
wherein y is a natural number.
6. The method for designing a water conservation and management scheme for urban landscapes in arid regions according to claim 4, wherein the step S43 is performed on
and FInitially, the method comprises The water quality evaluation model is satisfied when the optimization is carried out:
wherein ,QStarting from the beginning The section flow is the section flow of the starting point of the main river channel; s is S Starting from the beginning The cross-sectional area of the starting point of the main river channel; q (Q) j-branch The section flow of the tail end of the j-th branch river channel; s is S j-branch The section area of the j-th branch river is the section area of the tail end of the j-th branch river, and m is the data T 'of the simplified branch river' Support frame The number of medium branch river channels; q (Q) Inferior quality The kth obtained for space-time simulation i Poor water section flow at the tail end of each internal landscape lake; u (u) i Is the kth i The water quality weight coefficient of each internal landscape lake;
u i ＝w i +g i +b i ；
wherein ,wi Is the kth i Dynamic water resource weight of internal scenery lake g i Is the kth i Economic weight around river channel of internal view lake b i Is the kth i Ecological environment weight of each internal view lake.
7. The method for designing a water conservation and management scheme for urban landscapes in arid regions according to claim 6, wherein the dynamic water resource weight w i The calculation method of (1) is as follows:
wherein ,QPowder (D) The section flow of the tail end of the main river channel; s is S Powder (D) Is the cross-sectional area of the tail end of the main river channel.
8. The method for designing a water conservation and management scheme for urban landscapes in arid regions according to claim 6, wherein the economic weight g around the river channel i The water consumption weight around the river channel is as follows:
wherein ,
is the kth i Living water consumption of the lakes with the internal scenery; />
Is the kth i Industrial water consumption of the internal scenery lake; />
Is the kth i Agricultural water consumption of the internal scenery lakes; />
The water consumption is used for living in a main river channel; />
Industrial water consumption of a main river channel; />
Agricultural water consumption for a main river channel; />
The living water consumption of the j-th branch river is used; />
The living water consumption of the j-th branch river is used; />
The water consumption for living in the j-th branch river channel.
9. According to claim 6The design method of the urban interior landscape water storage treatment scheme in arid areas is characterized in that the ecological environment weight b i The calculation method of (1) is as follows:
wherein ,SWater net Is the area of the water network in the city.
10. The method of claim 1, wherein the treatment scheme comprises one or more of dredging substrate sludge, mechanical algae removal, diversion dredging, water regulation, river aeration reoxygenation, biomembrane method, bioremediation method, land treatment method or aquatic plant purification method.
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