CN110489811B - Water level determination method and system applied to drainage and waterlogging drainage and storage medium - Google Patents
Water level determination method and system applied to drainage and waterlogging drainage and storage medium Download PDFInfo
- Publication number
- CN110489811B CN110489811B CN201910675110.0A CN201910675110A CN110489811B CN 110489811 B CN110489811 B CN 110489811B CN 201910675110 A CN201910675110 A CN 201910675110A CN 110489811 B CN110489811 B CN 110489811B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- head loss
- drainage
- water level
- hydraulic gradient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/40—Controlling or monitoring, e.g. of flood or hurricane; Forecasting, e.g. risk assessment or mapping
Abstract
The invention discloses a water level determination method, a system and a storage medium applied to drainage and waterlogging drainage, wherein the method comprises the following steps: obtaining a hydraulic gradient line according to the ground line and the pipeline head loss; determining the maximum allowable water level of the discharge port according to the hydraulic gradient line; and determining the drainage water level according to the maximum allowable water level of the drainage port. The drainage water level determined by the invention can realize smooth connection of upstream and downstream drainage and drainage, and improve the drainage and drainage standard of cities. The water level determining method, the water level determining system and the storage medium applied to drainage and waterlogging draining can be widely applied to the technical field of drainage.
Description
Technical Field
The invention relates to the technical field of drainage, in particular to a water level determining method, a water level determining system and a storage medium applied to drainage and waterlogging.
Background
Urban area drainage and drainage have the particularity, and the drainage is carried out through the connection of the road drainage pipeline at the upstream and the drainage river channel at the downstream. Nowadays, cities with waterlogging caused by rainstorm are more and more, and when waterlogging occurs in one city, the problems are usually caused by the design of drainage pipelines and waterlogging drainage channels. At present, a mode of first downstream and then upstream is adopted for designing drainage pipelines and drainage channels, namely, the downstream channel water level is designed firstly and then the water level of the upstream drainage pipeline is designed, so that the top support influence is easily generated between the channel water level and the drainage pipelines, upstream and downstream drainage and drainage in urban areas cannot be smoothly connected, the urban drainage and drainage standard is reduced, and the urban flood season safety cannot be guaranteed.
Disclosure of Invention
In view of the above, in order to solve the above technical problems, the present invention aims to provide a water level determining method, a system and a storage medium for drainage and waterlogging, so as to achieve smooth connection between upstream and downstream drainage and waterlogging and improve the drainage and waterlogging standards of cities.
The technical scheme adopted by the invention is as follows: the water level determination method applied to drainage and waterlogging drainage comprises the following steps:
obtaining a hydraulic gradient line according to the ground line and the pipeline head loss;
determining the maximum allowable water level of the discharge port according to the hydraulic gradient line;
and determining the drainage water level according to the maximum allowable water level of the drainage port.
Further, the method also comprises the following steps: and obtaining a ground line according to the ground level of the discharge port and the at least one pipeline inspection well.
Further, the step of obtaining the hydraulic gradient line according to the ground line and the pipeline head loss comprises the following steps:
determining a first pipeline inspection well with the lowest ground elevation in a ground line;
subtracting a first threshold value from the ground elevation of the first pipeline inspection well to obtain a datum point;
and obtaining a hydraulic gradient line according to the reference point and the pipeline head loss.
Further, the step of obtaining the hydraulic gradient line according to the reference point and the pipeline head loss comprises the following steps:
when the reference point is located at the starting end upstream in the discharge direction:
subtracting the first pipeline water head loss section by section towards the downstream of the discharge direction by taking the reference point as a reference until the first pipeline water head loss is reduced to a discharge port at the downstream tail end to obtain a first calculation result;
when the reference point is located between the discharge ports at the starting end and the downstream end upstream in the discharge direction:
adding second pipeline water head loss section by section to the upstream of the discharge direction by taking the reference point as a reference until the second pipeline water head loss is added to the starting end positioned at the upstream; and, with the reference point as the benchmark, the first pipeline head loss is subtracted section by section downstream in the discharge direction until the first pipeline head loss is reduced to a discharge port at the tail end of the downstream, so as to obtain a second calculation result;
obtaining a hydraulic gradient line according to the first calculation result or the second calculation result;
wherein the pipeline head loss comprises a first pipeline head loss and a second pipeline head loss.
Further, the step of obtaining the hydraulic gradient line according to the first calculation result or the second calculation result includes the steps of:
generating hydraulic gradient points according to the added second pipeline head loss or the subtracted first pipeline head loss by taking the reference point as a reference, wherein the hydraulic gradient points comprise a first hydraulic gradient point positioned at the downstream end and a second hydraulic gradient point except the first hydraulic gradient point;
sequentially connecting the datum point with each hydraulic gradient point along the upstream direction and the downstream direction to obtain a hydraulic gradient line;
and the distance between the elevation of the second hydraulic gradient point and the ground is greater than or equal to a second threshold value.
Further, the step of determining the maximum allowable water level of the discharge port according to the hydraulic gradient line includes the steps of:
and taking the water level elevation of the first hydraulic gradient point as the maximum allowable water level of the discharge port.
Further, in the step of determining the drainage level according to the maximum allowable water level of the drainage port, specifically:
the maximum allowable water level of the discharge port is greater than or equal to the drainage water level.
The present invention also provides a water level determining system applied to drainage and drainage of stagnant water, comprising:
the drawing module is used for obtaining a hydraulic gradient line according to the ground line and the pipeline head loss;
and the determining module is used for determining the maximum allowable water level of the discharge port according to the hydraulic gradient line and determining the drainage water level according to the maximum allowable water level of the discharge port.
The present invention also provides a water level determining system applied to drainage and drainage of stagnant water, comprising: at least one processor; at least one memory for storing at least one program; when the at least one program is executed by the at least one processor, the at least one processor is caused to implement the water level determination method applied to drainage and waterlogging.
The invention also provides a storage medium which stores instructions executable by the processor, and the water level determination method applied to drainage and waterlogging drainage is executed when the processor executes the instructions executable by the processor.
The invention has the beneficial effects that: determining the maximum allowable water level of the discharge port according to the hydraulic gradient line, and determining the drainage water level according to the maximum allowable water level of the discharge port; the invention firstly determines the maximum allowable water level of the discharge port and then determines the drainage water level, namely, the design idea of designing the water level of the upstream drainage pipeline and then designing the drainage water level of the downstream river channel can put an end to the influence of the drainage water level of the river channel on the jacking of the drainage pipeline, so that the upstream drainage and drainage can be smoothly connected, and the drainage and drainage standard of the city is fundamentally improved.
Drawings
FIG. 1 is a flow chart illustrating steps of a water level determination method applied to drainage and drainage of stagnant water according to the present invention;
FIG. 2 is a schematic illustration of a hydraulic slope line according to the present invention;
FIG. 3 is a schematic plan view of the urban area drainage design of the present invention;
FIG. 4 is a schematic flow chart illustrating steps of an embodiment of the present invention;
fig. 5 is a block diagram showing a configuration of a water level determining system for draining and draining stagnant water according to the present invention.
Detailed Description
The invention will be further explained and explained with reference to the drawings and the embodiments in the description. The step numbers in the embodiments of the present invention are set for convenience of illustration only, the order between the steps is not limited at all, and the execution order of each step in the embodiments can be adaptively adjusted according to the understanding of those skilled in the art.
As shown in fig. 1, the water level determination method applied to drainage and waterlogging includes the steps of:
obtaining a hydraulic gradient line according to the ground line and the pipeline head loss;
determining the maximum allowable water level of the discharge port according to the hydraulic gradient line;
and determining the drainage water level according to the maximum allowable water level of the drainage port.
As shown in fig. 2, further as a preferred embodiment, the method further comprises the following steps: and obtaining a ground line according to the ground level of the discharge port and the at least one pipeline inspection well.
In this embodiment, the number of the pipeline inspection wells is three and A, B, C, and the pipeline inspection well A, B, C and the discharge port D are connected according to the ground elevations of the pipeline inspection well A, B, C and the discharge port D, and a ground line L1 is drawn.
Further preferably, the step of obtaining a hydraulic gradient line from the ground line and the pipeline head loss includes the steps of:
determining a first pipeline inspection well with the lowest ground elevation in a ground line;
subtracting a first threshold value from the ground elevation of the first pipeline inspection well to obtain a datum point;
and obtaining a hydraulic gradient line according to the reference point and the pipeline head loss.
In this embodiment, the first pipeline inspection well B with the lowest ground elevation is obtained according to the ground line L1, the first threshold value is subtracted on the basis of the ground elevation of the first pipeline inspection well B, the first threshold value in this embodiment is a ground waterlogging control threshold value, the value is 1, the unit is m (meters), if the ground elevation of the first pipeline inspection well B is F, the ground elevation of the reference point B 'is obtained as F-1, and the hydraulic gradient line is obtained according to the reference point B' and the pipeline head loss. The elevation referred to in this embodiment is an absolute elevation.
Further preferably, the step of obtaining the hydraulic gradient line based on the reference point and the pipeline head loss includes the steps of:
when the reference point is located at the starting end upstream in the discharge direction:
subtracting the first pipeline water head loss section by section towards the downstream of the discharge direction by taking the reference point as a reference until the first pipeline water head loss is reduced to a discharge port at the downstream tail end to obtain a first calculation result;
when the reference point is located between the discharge ports at the starting end and the downstream end upstream in the discharge direction:
adding second pipeline water head loss section by section to the upstream of the discharge direction by taking the reference point as a reference until the second pipeline water head loss is added to the starting end positioned at the upstream; and, with the reference point as the benchmark, the first pipeline head loss is subtracted section by section downstream in the discharge direction until the first pipeline head loss is reduced to a discharge port at the tail end of the downstream, so as to obtain a second calculation result;
obtaining a hydraulic gradient line according to the first calculation result or the second calculation result;
wherein the pipeline head loss comprises a first pipeline head loss and a second pipeline head loss.
In this embodiment, the upstream and downstream are distinguished by the discharge direction during the water discharge, and water is discharged from the second pipe manhole a to the discharge port D, so that the second pipe manhole a is located at the start of the upstream and the discharge port D is located at the end of the downstream. In the present embodiment, the reference point B 'is located between the discharge ports at the beginning and the end of the upstream in the discharge direction, i.e. between the inspection well a and the discharge port D of the second pipeline, so that based on the reference point B', the first pipeline head loss is gradually subtracted from the discharge port D at the end of the downstream to the downstream, the second pipeline head loss is gradually added from the discharge port D at the end of the downstream to the beginning a at the upstream, and the first pipeline head loss includes the head loss of each pipeline section at the downstream, i.e. the head loss Z of the pipeline section between the inspection well B and the inspection well CbcThe head loss Z of the section of pipeline between the third inspection well C and the discharge port Dcd(ii) a The second pipeline head loss comprises head loss of each section of the pipeline at the upstream, and only the second pipeline inspection well A is arranged at the upstream of the reference point B' in the embodiment, so that the second pipeline head loss only comprises the head loss Z of the section of the pipeline between the second inspection well A and the first inspection well Bab。
Specifically, in the present embodiment, Z is added in the upstream direction with reference to the reference point BabSubtracting Z first in the downstream directionbcThen will remove ZcdAnd obtaining a second calculation result. In other embodiments, when the reference point B 'is located at the beginning of the upstream of the discharging direction, the first pipeline head loss is subtracted from the reference point B' to the downstream of the discharging direction section by section until the first pipeline head loss is reduced to the discharging port D located at the end of the downstream, so as to obtain the first calculation result, and the first calculation result is obtained according to the first calculation resultAnd obtaining a hydraulic gradient line according to the calculation result or the second calculation result. Wherein the pipeline head loss comprises head loss of each section of pipeline, thus also comprises first pipeline head loss and second pipeline head loss, namely comprises Zab、ZbcAnd Zcd。
Further preferably, the step of obtaining the hydraulic gradient line based on the first calculation result or the second calculation result includes the steps of:
generating hydraulic gradient points according to the added second pipeline head loss or the subtracted first pipeline head loss by taking the reference point as a reference, wherein the hydraulic gradient points comprise a first hydraulic gradient point positioned at the downstream end and a second hydraulic gradient point except the first hydraulic gradient point;
sequentially connecting the datum point with each hydraulic gradient point along the upstream direction and the downstream direction to obtain a hydraulic gradient line;
and the distance between the elevation of the second hydraulic gradient point and the ground is greater than or equal to a second threshold value.
In this embodiment, Z is added upstream based on the reference point BabObtaining a hydraulic gradient point A', and subtracting Z from the downstreambcObtaining a hydraulic gradient point C', and subtracting Z from the hydraulic gradient point CcdAnd obtaining a hydraulic gradient point D '(a first hydraulic gradient point) at the downstream end, and sequentially connecting the hydraulic gradient points A', B ', C' and D 'along the upstream direction to obtain L2, wherein in the embodiment, the second hydraulic gradient points comprise the hydraulic gradient points A', B 'and C'. Wherein, it is required to ensure that the distances between the elevations of the second hydraulic gradient points a ', B', C 'and the ground are all greater than or equal to a second threshold value, that is, the distances between each second gradient point and the ground line L1 in the vertical direction are all greater than or equal to the second threshold value, in this example, the second threshold value is 1, and the unit is m (meter), if there is an unsatisfied requirement in the second hydraulic gradient points a', B ', C' corresponding to each inspection well A, B, C, the L2 is integrally translated until the second hydraulic gradient points a ', B', C 'all meet the requirement, so as to obtain a final hydraulic gradient line L3, and since L2 in this example has met the requirement, L2, B', C,L3 is the same line, i.e., L2 and L3 are both final hydraulic slope lines.
Further as a preferred embodiment, the step of determining the maximum allowable water level of the discharge port according to the hydraulic gradient line includes the steps of:
and taking the water level elevation of the first hydraulic gradient point as the maximum allowable water level of the discharge port.
In the present embodiment, the water level elevation of the hydraulic gradient point D' (first hydraulic gradient point) at the downstream end is taken as the drain port maximum allowable water level (i.e., control water level H).
Further as a preferred embodiment, in the step of determining the drainage level according to the maximum allowable water level of the drainage port, specifically:
the maximum allowable water level of the discharge port is greater than or equal to the drainage water level.
In the embodiment, the maximum allowable water level of the discharge port (i.e. the control water level H) is determined to be greater than or equal to the drainage water level, and this is used as a boundary condition for designing the drainage water level of the downstream river channel.
Further as a preferred embodiment, before drawing the hydraulic gradient line, the method further comprises the following steps: 1) dividing a drainage subarea; 2) and (4) calculating the hydraulic power of the pipeline.
Referring to fig. 3, in the present example, 1) the drainage partition is divided: according to the urban terrain and the trend of the main drainage pipeline, the drainage subareas of the design area are divided, namely rainwater in the area flows to a downstream river channel through drainage pipelines (main pipelines), as shown in fig. 3, the rainwater is divided into four areas, the corresponding areas are A1, A2, A3 and A4 respectively, and the rainwater in the four areas flows to a drainage port D and flows to the downstream river channel.
2) Calculating the hydraulic power of the pipeline: according to a drainage design standard P (namely a design recurrence period P for drainage pipeline calculation) required by outdoor drainage design specifications (GB50014-2006), calculating the pipe diameter D, the hydraulic slope I and the head loss Z (the sum of the on-way head loss and the local head loss) of the drainage pipeline section by section. The method comprises the following steps: (a) calculating a design flow Q1; (b) calculating the pipeline flow capacity Q2; (c) and calculating the pipeline head loss Z.
Specifically, (a) calculating a design flow rate Q1, calculating the designed rainstorm intensity q (the unit is L/s.hm) by adopting a rainstorm intensity formula2) Multiplied by the surface area S (in hm) flowing to the pipe section2) I.e., Q1 ═ Q × S (unit L/S). The ground area corresponding to the inspection well A is A1, the ground area corresponding to the inspection well B is A1+ A2, the ground area corresponding to the inspection well C is A1+ A2+ A3, and the ground area corresponding to the inspection well D is A1+ A2+ A3+ A4. The calculation formula for designing the rainstorm intensity q is as follows:
q in the formula-design storm intensity (L/s. hm)2)；
t-duration of rainfall (min);
p-design recurrence period (year);
A1c, b, n, the parameters of the local stormwater intensity formula, reflect the specific constants of the local stormwater formula, and are generally provided directly by the local weather or water department.
(b) Calculating the overflow capacity Q2 of the pipeline, in order to meet the overflow requirement in heavy rain, ensuring that the overflow capacity Q2 of the pipeline is not less than Q1, wherein the calculation formula of Q2 is as follows:
v-pipeline design flow velocity (m/s);
a, the area of a cross section of a pipeline (square meter);
d, pipe diameter (m) of the pipeline.
The calculation formula of the designed flow velocity V of the pipeline is as follows:
n-the roughness coefficient of the pipeline (the general reinforced concrete pipeline takes a value of 0.013);
r-hydraulic radius of pipeline (according to full pipe flow for rain water pipeline)Calculating the area of the cross section of the pipeline
By 3.14 x D, i.e.
)；
I, hydraulic slope, and dividing the elevation difference of the upstream inspection well and the downstream inspection well by the horizontal distance.
As can be seen from the calculation formula of the pipeline flow capacity Q2, when Q2 does not meet the condition that Q2 is not less than or equal to Q1, the Q2 is not less than or equal to Q1 by adjusting the pipe diameter D of the pipeline or the hydraulic slope I;
(c) calculating the pipeline head loss Z, and calculating the pipeline head loss Z on the premise that Q2 is more than or equal to Q1, namely the hydraulic slope I is determined, wherein the calculation formula is as follows:
Z＝I*L*1.5
i-hydraulic slope
L-pipe length (m)
1.5-coefficient (including local head loss)
And drawing a hydraulic gradient line through the calculated corresponding head loss of each section of pipeline.
Referring to fig. 4, in summary, the steps of the water level determining method applied to drainage and waterlogging drainage are described as follows:
1) dividing drainage partitions, and determining the corresponding ground areas of different inspection wells (flowing to different pipe sections);
2) calculating the hydraulic power of the pipeline, calculating the pipe diameter D and the hydraulic slope I of the drainage pipeline section by section, combining the corresponding ground area, so that the flow capacity Q2 is not less than the design flow Q1, and calculating the head loss Z of the drainage pipeline section by section (including the head loss of a first pipeline: head loss of each downstream segment of the pipeline, and second pipeline head loss: head loss for each upstream segment of pipe);
3) drawing a ground line L1 according to a ground elevation connecting line of the pipeline inspection well A, B, C and the discharge port D;
4) finding out a first pipeline inspection well B with the lowest ground elevation according to a ground line L1, and subtracting a first threshold value from the ground elevation at the position to obtain a reference point B';
5) with the reference point B ' as a reference, subtracting the first pipeline head loss section by section towards the downstream of the discharge direction, and adding the second pipeline head loss section by section towards the upstream of the discharge direction to correspondingly obtain a first hydraulic gradient point D ' and second hydraulic gradient points A ', B ' and C ';
6) connecting the hydraulic gradient points A ', B', C 'and D' and drawing to obtain L2;
7) enabling the distances between the elevations of the second hydraulic gradient points A ', B ' and C ' and the ground to be not less than a second threshold value, and obtaining a hydraulic gradient line L3;
8) the water level elevation of a first water gradient point D' at the downstream end on the water gradient line L3 is used as the maximum allowable water level of the discharge port (namely, a control water level H);
9) the drain maximum allowable water level (i.e., the control water level H) is determined to be greater than or equal to the drainage water level.
Referring to fig. 5, the present invention also provides a water level determining system applied to drainage and waterlogging, including:
the drawing module is used for obtaining a hydraulic gradient line according to the ground line and the pipeline head loss;
and the determining module is used for determining the maximum allowable water level of the discharge port according to the hydraulic gradient line and determining the drainage water level according to the maximum allowable water level of the discharge port.
The embodiment of the invention also provides a water level determining system applied to drainage and waterlogging drainage, which comprises:
at least one processor;
at least one memory for storing at least one program;
when the at least one program is executed by the at least one processor, the at least one processor is caused to implement the water level determination method applied to drainage and waterlogging.
The contents in the above method embodiments are all applicable to the present system embodiment, the functions specifically implemented by the present system embodiment are the same as those in the above method embodiment, and the beneficial effects achieved by the present system embodiment are also the same as those achieved by the above method embodiment.
In summary, compared with the prior art, the water level determination method applied to drainage and waterlogging has the following advantages:
1) the design idea of designing the water level of the upstream drainage pipeline and designing the drainage water level of the downstream river channel firstly can avoid the influence of the drainage water level of the river channel on the jacking of the drainage pipeline, so that the upstream drainage and drainage can be smoothly connected, and the drainage and drainage standard of a city is fundamentally improved.
2) The maximum allowable water level of the discharge port is determined according to the hydraulic gradient line, the drainage water level is determined according to the maximum allowable water level of the discharge port, the method is simple and visual, and the effect of improving the drainage and drainage standard of cities can be realized;
3) by enabling the distances between the elevations of the hydraulic gradient points A ', B ' and C ' and the ground to be not less than a second threshold value, the control on the waterlogging on the ground can be realized, and meanwhile, the effectiveness of the finally determined waterlogging draining water level is ensured;
4) the drainage water level is set to be not more than the maximum allowable water level of the discharge port (namely, the water level H is controlled), so that the smooth connection of upstream and downstream drainage and drainage in urban areas can be realized, and the safety of urban flood season is guaranteed.
In alternative embodiments, the functions/acts noted in the block diagrams may occur out of the order noted in the operational illustrations. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality/acts involved. Furthermore, the embodiments presented and described in the flow charts of the present invention are provided by way of example in order to provide a more thorough understanding of the technology. The disclosed methods are not limited to the operations and logic flows presented herein. Alternative embodiments are contemplated in which the order of various operations is changed and in which sub-operations described as part of larger operations are performed independently.
Furthermore, while the invention is described in the context of functional modules and illustrated in the form of block diagrams, it should be understood that, unless otherwise stated to the contrary, one or more of the described functions and/or features may be integrated into a single physical device and/or software module or one or more functions and/or features may be implemented in a separate physical device or software module. It will also be appreciated that a detailed discussion of the actual implementation of each module is not necessary for an understanding of the present invention. Rather, the actual implementation of the various functional modules in the apparatus disclosed herein will be understood within the ordinary skill of an engineer, given the nature, function, and internal relationship of the modules. Accordingly, those skilled in the art can, using ordinary skill, practice the invention as set forth in the claims without undue experimentation. It is also to be understood that the specific concepts disclosed are merely illustrative of and not intended to limit the scope of the invention, which is defined by the appended claims and their full scope of equivalents.
The embodiment of the invention also provides a storage medium, which stores instructions executable by the processor, and the water level determination method applied to drainage and waterlogging drainage is executed when the processor executes the instructions executable by the processor.
It can also be seen that the contents in the above method embodiments are all applicable to the present storage medium embodiment, and the realized functions and advantageous effects are the same as those in the method embodiments.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
In the description herein, references to the description of the term "one embodiment," "the present embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The water level determination method applied to drainage and waterlogging drainage is characterized by comprising the following steps of:
obtaining a hydraulic gradient line according to the ground line and the pipeline head loss;
determining the maximum allowable water level of the discharge port according to the hydraulic gradient line;
determining the drainage water level according to the maximum allowable water level of the discharge port;
the method for obtaining the hydraulic gradient line according to the ground line and the pipeline head loss comprises the following steps:
determining a first pipeline inspection well with the lowest ground elevation in a ground line; the ground line is determined according to the ground level of the discharge port and the at least one pipeline inspection well;
subtracting a first threshold value from the ground elevation of the first pipeline inspection well to obtain a datum point;
obtaining a hydraulic gradient line according to the reference point and the pipeline head loss;
the step of obtaining the hydraulic gradient line according to the reference point and the pipeline head loss comprises the following steps:
when the reference point is located at the starting end upstream in the discharge direction:
subtracting the first pipeline water head loss section by section towards the downstream of the discharge direction by taking the reference point as a reference until the first pipeline water head loss is reduced to a discharge port at the downstream tail end to obtain a first calculation result;
when the reference point is located between the discharge ports at the starting end and the downstream end upstream in the discharge direction:
adding second pipeline water head loss section by section to the upstream of the discharge direction by taking the reference point as a reference until the second pipeline water head loss is added to the starting end positioned at the upstream; and, with the reference point as the benchmark, the first pipeline head loss is subtracted section by section downstream in the discharge direction until the first pipeline head loss is reduced to a discharge port at the tail end of the downstream, so as to obtain a second calculation result;
obtaining a hydraulic gradient line according to the first calculation result or the second calculation result; wherein the pipeline head loss comprises a first pipeline head loss and a second pipeline head loss;
the step of obtaining the hydraulic gradient line according to the first calculation result or the second calculation result comprises the following steps:
generating hydraulic gradient points according to the added second pipeline head loss or the subtracted first pipeline head loss by taking the reference point as a reference, wherein the hydraulic gradient points comprise a first hydraulic gradient point positioned at the downstream end and a second hydraulic gradient point except the first hydraulic gradient point;
sequentially connecting the datum point with each hydraulic gradient point along the upstream direction and the downstream direction to obtain a hydraulic gradient line;
the distance between the elevation of the second hydraulic gradient point and the ground is larger than or equal to a second threshold value;
the first pipeline head loss comprises head loss of each section of pipeline at the downstream, and the second pipeline head loss comprises head loss of each section of pipeline at the upstream.
2. The water level determination method applied to drainage and waterlogging according to claim 1, wherein: the step of determining the maximum allowable water level of the discharge port according to the hydraulic gradient line comprises the following steps:
and taking the water level elevation of the first hydraulic gradient point as the maximum allowable water level of the discharge port.
3. The water level determination method applied to drainage and waterlogging according to claim 2, characterized in that: in the step of determining the drainage level according to the maximum allowable water level of the discharge port, specifically:
the maximum allowable water level of the discharge port is greater than or equal to the drainage water level.
4. Be applied to water level determination system of drainage waterlogging, its characterized in that includes:
the drawing module is used for obtaining a hydraulic gradient line according to the ground line and the pipeline head loss;
the determining module is used for determining the maximum allowable water level of the discharge port according to the hydraulic gradient line and determining the drainage water level according to the maximum allowable water level of the discharge port;
the method for obtaining the hydraulic gradient line according to the ground line and the pipeline head loss comprises the following steps:
determining a first pipeline inspection well with the lowest ground elevation in a ground line; the ground line is determined according to the ground level of the discharge port and the at least one pipeline inspection well;
subtracting a first threshold value from the ground elevation of the first pipeline inspection well to obtain a datum point;
obtaining a hydraulic gradient line according to the reference point and the pipeline head loss;
the step of obtaining the hydraulic gradient line according to the reference point and the pipeline head loss comprises the following steps:
when the reference point is located at the starting end upstream in the discharge direction:
subtracting the first pipeline water head loss section by section towards the downstream of the discharge direction by taking the reference point as a reference until the first pipeline water head loss is reduced to a discharge port at the downstream tail end to obtain a first calculation result;
when the reference point is located between the discharge ports at the starting end and the downstream end upstream in the discharge direction:
adding second pipeline water head loss section by section to the upstream of the discharge direction by taking the reference point as a reference until the second pipeline water head loss is added to the starting end positioned at the upstream; and, with the reference point as the benchmark, the first pipeline head loss is subtracted section by section downstream in the discharge direction until the first pipeline head loss is reduced to a discharge port at the tail end of the downstream, so as to obtain a second calculation result;
obtaining a hydraulic gradient line according to the first calculation result or the second calculation result; wherein the pipeline head loss comprises a first pipeline head loss and a second pipeline head loss;
the step of obtaining the hydraulic gradient line according to the first calculation result or the second calculation result comprises the following steps:
generating hydraulic gradient points according to the added second pipeline head loss or the subtracted first pipeline head loss by taking the reference point as a reference, wherein the hydraulic gradient points comprise a first hydraulic gradient point positioned at the downstream end and a second hydraulic gradient point except the first hydraulic gradient point;
sequentially connecting the datum point with each hydraulic gradient point along the upstream direction and the downstream direction to obtain a hydraulic gradient line;
the distance between the elevation of the second hydraulic gradient point and the ground is larger than or equal to a second threshold value;
the first pipeline head loss comprises head loss of each section of pipeline at the downstream, and the second pipeline head loss comprises head loss of each section of pipeline at the upstream.
5. Be applied to water level determination system of drainage waterlogging, its characterized in that includes:
at least one processor;
at least one memory for storing at least one program;
when executed by the at least one processor, cause the at least one processor to implement the method of determining water level as claimed in any one of claims 1 to 3 for draining drainage.
6. A storage medium storing instructions executable by a processor, wherein: a processor executing the processor-executable instructions to perform the water level determination method as claimed in any one of claims 1 to 3 as applied to drainage and waterlogging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675110.0A CN110489811B (en) | 2019-07-25 | 2019-07-25 | Water level determination method and system applied to drainage and waterlogging drainage and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675110.0A CN110489811B (en) | 2019-07-25 | 2019-07-25 | Water level determination method and system applied to drainage and waterlogging drainage and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110489811A CN110489811A (en) | 2019-11-22 |
| CN110489811B true CN110489811B (en) | 2021-08-03 |
Family
ID=68548189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910675110.0A Active CN110489811B (en) | 2019-07-25 | 2019-07-25 | Water level determination method and system applied to drainage and waterlogging drainage and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110489811B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10552572B2 (en) * | 2016-03-24 | 2020-02-04 | Autodesk, Inc. | Drainage pipe network design |
| CN108446464B (en) * | 2018-03-05 | 2021-09-14 | 重庆大学 | Method for constructing large drainage system by using SWMM model |
| CN109271701B (en) * | 2018-09-11 | 2023-05-12 | 中国铁路设计集团有限公司 | Water supply and drainage BIM forward design method based on reach system |
| CN109657291A (en) * | 2018-11-28 | 2019-04-19 | 青岛理工大学 | The measuring method of slope drainage hole optimal design parameter |
-
2019
- 2019-07-25 CN CN201910675110.0A patent/CN110489811B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110489811A (en) | 2019-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108446464B (en) | Method for constructing large drainage system by using SWMM model | |
| JP6069779B2 (en) | Multi-layer sewer pipe | |
| CN108060681A (en) | Retaining wall drainage arrangement | |
| CN110489811B (en) | Water level determination method and system applied to drainage and waterlogging drainage and storage medium | |
| CN205259214U (en) | Pin -connected panel rainwater regulation pond of method of sinking construction | |
| Sebti et al. | Cost optimization of hydraulic and structural rehabilitation of urban drainage network | |
| CN102409747B (en) | Rainwater drainage system with shallow rainwater storage adjusting structure | |
| CN104674889A (en) | Tunnel fire system with water sources which are slope surface flowing water and road surface water | |
| CN102720266A (en) | Siphon type dredging device for water storage and drainage tunnel | |
| KR102004140B1 (en) | Water turning method and stom water pipe overflow device | |
| CN206396789U (en) | A kind of comprehensive pipe gallery structure for being easy to sewage collecting to discharge | |
| CN104563200A (en) | Tunnel fire-fighting system taking road surface water and tunnel surge water as water sources | |
| CN107558561B (en) | Concave segment rainwater non-powered drainage system construction method under a kind of urban interchange | |
| CN204370519U (en) | A kind of domatic flowing water and road surface water of utilizing is as the tunnel fire protection system at water source | |
| CN204212248U (en) | A kind of self-cleaning underdrainage system | |
| CN205712417U (en) | A kind of rainwater-collecting being applied to pipe gallery is regulated and stored device | |
| CN110704994B (en) | Method for constructing effective shutoff rate calculation model of rainwater shutoff pipe network | |
| CN206396790U (en) | A kind of comprehensive pipe gallery structure for being easy to rainwater to discharge | |
| CN204370510U (en) | A kind of road surface water and Tunnel Gushing of utilizing is as the tunnel fire protection system at water source | |
| CN111535417A (en) | Road drainage structure and drainage method thereof | |
| CN205604409U (en) | Compound complete piping system of rainwater | |
| CN204039968U (en) | A kind of multi-functional mountain stream river channel sewage intercepting facility | |
| CN204356843U (en) | A kind of domatic flowing water and road surface water of utilizing is as the tunnel fire protection system at water source | |
| CN207160183U (en) | Drainpipe cross processing structure | |
| Liao et al. | Simulation and application on storm flood in Dongguan city based on SWMM |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |