Super-standard flood dynamic simulation method and device considering flood control project catastrophe

Abstract

The invention provides a hyper-standard flood dynamic simulation method and device considering flood control project catastrophe, and the method comprises the steps: collecting data through a conventional model construction mode, constructing a river flood routing model according to the collected data, and marking the position and type of a water conservancy project in the model; in the model operation process, catastrophe information of the water conservancy project is obtained in real time, and according to the position of the water conservancy project and the catastrophe information, model parameters of the catastrophe position are dynamically adjusted; calculating according to the model parameters of the hydraulic engineering type and the catastrophe position to obtain the breach flow; and according to the model parameters of the catastrophe position and the breach flow, dynamically modifying the parameters of the river flood routing model, and calculating the flood routing after catastrophe to obtain an over-standard flood dynamic simulation scene. Compared with the prior art which mainly adopts a scenario type and static simulation method, dynamic simulation can be realized in the model operation process; and the catastrophe process is coupled to the flood process simulation, so that the simulation of the over-standard flood process is more real.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of river super-standard flood simulation, and in particular to a super-standard flood dynamic simulation method and device considering the catastrophe of flood control projects. BACKGROUND

[0002] Flood is one of the important natural disasters in China. In order to reduce the loss of flood disaster and effectively control the influence range of flood, many water conservancy projects have been developed and constructed. Reservoirs, dikes and other facilities can play an important role in flood response and have become an important means to cope with floods. Under the condition of climate change, the frequency of extreme rainstorms is increasing, and the number of super-standard floods is rising year by year. The super-standard flood exceeds the design standard of some current dams, dikes and other water conservancy projects, which may cause the occurrence of extreme events such as dam break and dike break.

[0003] The catastrophe of water conservancy projects will make the flood out of control of the flood control system and cause extensive damage; it will also increase the uncertainty of downstream flood control and have an impact on downstream flood regulation, bringing difficulties to real-time flood regulation decision-making. However, it is difficult to find reference in historical experience for the influence range after the destruction of water conservancy projects, and it is also difficult to simulate and develop countermeasures in advance due to the randomness of the catastrophe of water conservancy projects. Therefore, dynamic simulation of super-standard flood under the condition of water conservancy project catastrophe is of great significance for disaster prevention and control.

[0004] In current super-standard flood simulation, the consideration of flood control projects mainly adopts a scenario-based and static simulation method, that is, the behavior of flood control projects is considered to be in a non-0 or 1 state without intermediate state. This is seriously deviated from the fact that the catastrophe of flood control projects is often dynamic. In the early stage of flood development, flood control projects can better play their due role and protect the safety of life and property in the relevant areas. With the occurrence and development of flood, water conservancy projects face the risk of destruction, and the destruction exists in the form of instantaneous destruction, gradual destruction and other forms. Without considering the dynamic and gradual destruction process of water conservancy projects, the influence of this dynamic destruction is not detailed in the simulation, which will make the simulation result of super-standard flood distorted. SUMMARY

[0005] The present application provides a super-standard flood dynamic simulation method and device considering the catastrophe of flood control projects, to solve the defect that the consideration of flood control projects in the prior art mainly adopts a scenario-based and static simulation method, making the simulation result of flood distorted, and to realize dynamic consideration of the influence of water conservancy project catastrophe on flood in the process of flood simulation, simulate the flood evolution process after the catastrophe, and improve the authenticity of flood simulation.

[0006] The present application provides a super-standard flood dynamic simulation method considering the catastrophe of flood control projects, comprising the following steps: Data is collected through a traditional model construction method, a river flood evolution model is constructed, and a water conservancy project position and a water conservancy project type are marked in the model; Disaster information of the water conservancy project is acquired in real time, model parameters of the disaster position are dynamically adjusted according to the water conservancy project position and the disaster information, and a breach flow is obtained by calculation according to the water conservancy project type and the model parameters of the disaster position; Through the river flood evolution model, flood evolution after the disaster is calculated according to the model parameters of the disaster position and the breach flow, and a super-standard flood dynamic simulation scenario is obtained.

[0007] According to the super-standard flood dynamic simulation method considering disaster of a flood control project provided by the application, disaster information of the water conservancy project is acquired in real time, model parameters of the disaster position are dynamically adjusted according to the water conservancy project position and the disaster information, and a breach flow is obtained by calculation according to the water conservancy project type and the model parameters of the disaster position. Disaster time and disaster information of the water conservancy project are acquired in real time; In the case that the disaster time is less than the current simulation time, the disaster simulation module is started at the time corresponding to the disaster time, and the model parameters of the disaster position are dynamically adjusted according to the water conservancy project position and the disaster information.

[0008] According to the super-standard flood dynamic simulation method considering disaster of a flood control project provided by the application, the disaster information includes a disaster occurrence position and a disaster type, the disaster type includes instant full breach of a concrete dam, gradual breach of an earth-rock dam, instant full breach of a gate and gradual breach of a dike, and the model parameters of the disaster position are dynamically adjusted according to the water conservancy project position and the disaster information. In the case that the disaster type is instant full breach of a concrete dam or instant full breach of a gate, simulation parameters after the water conservancy project is fully breached are set as the model parameters of the disaster position at the time corresponding to the disaster time; In the case that the disaster type is gradual breach of an earth-rock dam or gradual breach of a dike, the model parameters of the disaster position are dynamically adjusted according to the water conservancy project position, the disaster occurrence position and the disaster type through a breach development model.

[0009] According to the super-standard flood dynamic simulation method considering disaster of a flood control project provided by the application, the model parameters of the disaster position are dynamically adjusted according to the water conservancy project position, the disaster occurrence position and the disaster type through a breach development model. The flow parameters and the soil incipient shear stress are determined according to the water conservancy project position and the disaster occurrence position; The breach scour shear stress is obtained by calculation based on the flow parameters according to the Manning formula; The breach expansion velocity is obtained by calculation based on the unit transformation factor, the breach scour shear stress and the soil incipient shear stress by adopting a hyperbolic model; The model parameters of the disaster location are dynamically adjusted based on the breach expansion speed through a breach development model.

[0010] The method for dynamically simulating super-standard flood considering disaster of flood control projects provided by the application comprises the following steps: The breach height and the breach width at the current time are obtained by calculating based on the breach expansion speed through multi-directional expansion of the breach development model. In the case that the vertical breach reaches the breach preset height value, the breach preset height value is determined as the breach height at the current time.

[0011] The model parameters of the disaster location comprise a breach width and a breach flow, including a maximum breach flow and a flow process. The maximum breach flow is obtained by calculating according to the type of the water conservancy project and the breach width. The flow process of the breach is generalized by using a quartic parabola method according to the flow coefficient corresponding to the type of the water conservancy project, the maximum breach flow and the breach width.

[0012] The method for dynamically simulating super-standard flood considering disaster of flood control projects provided by the application further comprises the following steps: The breach expansion speed in the breach development model and the flow coefficient corresponding to the type of the water conservancy project are dynamically corrected according to the disaster process of the real scene. The unit conversion factor is dynamically corrected according to the measured dam breach time and the response dam breach flow.

[0013] The application further provides a device for dynamically simulating super-standard flood considering disaster of flood control projects, which comprises the following modules: A data collection and labeling module is configured to collect data through a traditional model construction method, construct a river flood evolution model, and label the position and type of the water conservancy project in the model. A parameter dynamic adjustment module is configured to acquire disaster information of the water conservancy project in real time, dynamically adjust the model parameters of the disaster location according to the position of the water conservancy project and the disaster information, and calculate the breach flow according to the type of the water conservancy project and the model parameters of the disaster location. A scene simulation module is configured to calculate the flood evolution after the disaster through the river flood evolution model according to the model parameters of the disaster location and the breach flow, and obtain a super-standard flood dynamic simulation scene.

[0014] The application further provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method for dynamic simulation of super-standard flood considering flood control engineering disaster according to any one of the above when executing the computer program.

[0015] The application further provides a non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method for dynamic simulation of super-standard flood considering flood control engineering disaster according to any one of the above.

[0016] The application further provides a computer program product comprising a computer program, wherein the computer program, when executed by a processor, implements the method for dynamic simulation of super-standard flood considering flood control engineering disaster according to any one of the above.

[0017] The method and device for dynamic simulation of super-standard flood considering flood control engineering disaster provided by the application collect data through a conventional model construction method, construct a river flood evolution model, and mark the position and type of the water conservancy project in the model; real-time disaster information of the water conservancy project is acquired, the model parameters of the disaster position are dynamically adjusted according to the position of the water conservancy project and the disaster information, the breach flow is calculated according to the type of the water conservancy project and the model parameters of the disaster position, the flood evolution after the disaster is calculated through the river flood evolution model according to the model parameters of the disaster position and the breach flow, and the super-standard flood dynamic simulation scene is obtained. Compared with the scene-based and static simulation method for considering the flood control engineering in the prior art, the application can realize dynamic simulation in the model running process without stopping the model and re-modeling, and the dynamic and gradual disaster process of the flood control engineering with the development of the flood is calculated, and the calculation result is coupled to the flood process simulation, so that the simulation of the super-standard flood process is more realistic. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the application or the prior art, the following will briefly introduce the drawings needed in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 is a flowchart of the method for dynamic simulation of super-standard flood considering flood control engineering disaster provided by the application.

[0020] Figure 2 is a flowchart of the method for dynamic simulation of super-standard flood considering flood control engineering disaster provided by the application after combining the disaster module. is a flowchart of the method for dynamic simulation of super-standard flood considering flood control engineering disaster provided by the application after combining the disaster module.

[0021] Figure 3 is a schematic diagram of a traditional one-dimensional water dynamic simulation of a river channel provided in specific examples of the present application.

[0022] Figure 4 is a schematic diagram of a dynamic simulation result of embankment breach provided in specific examples of the present application.

[0023] Figure 5 is a schematic diagram of a structure of a device for dynamic simulation of super-standard flood considering disaster of flood control projects provided in the present application.

[0024] Figure 6 is a schematic diagram of a structure of an electronic device provided in the present application. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are some embodiments but not all embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0026] The present application will be described below with reference to the drawings. Figures 1-6 The present application will be described below with reference to the drawings.

[0027] Figure 1 is a flowchart of a method for dynamic simulation of super-standard flood considering disaster of flood control projects provided in the present application, as shown in the figure, the method comprises the following steps. Figure 1 Step 101, collecting data through a traditional model construction method, constructing a river channel flood evolution model, and marking the position and type of the water conservancy project in the model.

[0028] In the above step 101, the method for dynamic simulation of super-standard flood under disaster conditions of water conservancy projects provided in the embodiments of the present application can consider the influence process of the water conservancy project disaster on the flood in the super-standard flood simulation process, so as to dynamically simulate the flood evolution after the water conservancy project disaster.

[0029] The embodiments of the present application adopt a one-dimensional water dynamic model to collect data and model the river channel flood evolution model. In particular, the position and type of the water conservancy project need to be marked in the model to facilitate subsequent simulation of the water conservancy project disaster and to carry out regional construction of a two-dimensional water dynamic model in the region possibly affected by the water conservancy project disaster.

[0030] ​In step 102, real-time disaster information of the water conservancy project is acquired, and model parameters of the disaster location are dynamically adjusted according to the location of the water conservancy project and the disaster information; and a breach flow is obtained by calculation according to the type of the water conservancy project and the model parameters of the disaster location.

[0031] In step 102, Figure 2 is a flowchart of the method provided by the application, which is combined with a disaster simulation module. As shown in the figure, Figure 2 In the flood evolution process, real-time disaster information of the water conservancy project is acquired by means of stations, remote sensing, manual operation, etc. and is input into the reserved interface of the model, and the model will enable the water conservancy disaster simulation module. The object properties, Manning coefficient and other main parameters of the disaster location are dynamically adjusted according to the location of the disaster, so as to depict the dynamic and gradual change of the underlying surface of the flood control project disaster, and the two-dimensional model near the disaster is enabled, and the flow process caused by the disaster is calculated according to the type of the water conservancy project.

[0032] Optionally, in step 102, the real-time disaster information of the water conservancy project is acquired, and the model parameters of the disaster location are dynamically adjusted according to the location of the water conservancy project and the disaster information, which comprises steps A1 to A2: Step A1: real-time disaster time and disaster information of the water conservancy project are acquired; Step A2: if the disaster time is less than the current simulation time, return to the time corresponding to the disaster time, enable the disaster simulation module, and dynamically adjust the model parameters of the disaster location according to the location of the water conservancy project and the disaster information.

[0033] In steps A1 to A2, the disaster time is compared with the current simulation time. If the disaster time is later than the current simulation time, the disaster simulation module is enabled in the subsequent simulation. If the disaster time is earlier than the current simulation time, return to the disaster time immediately, and the disaster simulation module is enabled from the disaster time to continue the simulation.

[0034] According to the location of the disaster and the type of the disaster, the object properties, Manning coefficient and other main parameters of the water conservancy project region marked in step 101 are dynamically adjusted; and the flow process caused by the disaster is calculated according to the type of the water conservancy project and the damage type.

[0035] Optionally, the disaster information comprises the location of the disaster and the type of the disaster; the type of the disaster comprises: instantaneous full breach of a concrete dam, gradual breach of an earth-rock dam, instantaneous full breach of a gate and gradual breach of a dike; and in step 102, the model parameters of the disaster location are dynamically adjusted according to the location of the water conservancy project and the disaster information, which comprises steps B1 to B2: Step B1: if the type of the disaster is instantaneous full breach of a concrete dam or instantaneous full breach of a gate, the simulation parameters after the water conservancy project is fully breached are set as the model parameters of the disaster location at the time corresponding to the disaster time.

[0036] Step B2: In cases where the disaster type is the gradual collapse of an earth-rock dam or a levee, the model parameters of the disaster location are dynamically adjusted based on the location of the water conservancy project, the location of the disaster, and the type of disaster, using a breach development model.

[0037] In steps B1 to B2 above, for instantaneous complete collapse, it is only necessary to reset the simulation parameters of the water conservancy project area at the moment of the disaster, and set its parameters to the model parameters after the complete collapse of the water conservancy project, so as to facilitate the subsequent flood evolution simulation; for gradual collapse, it is necessary to dynamically set the simulation parameters according to the breach development model.

[0038] Optionally, step B2 involves using a breach development model to dynamically adjust the model parameters for the disaster location based on the location of the hydraulic engineering project, the location of the disaster, and the type of disaster, including steps B21 to B24: Step B21: Determine the water flow parameters and soil initiation shear stress based on the location of the water conservancy project and the location of the disaster.

[0039] Step B22: Calculate the breach scour shear stress based on the Manning formula and the water flow parameters.

[0040] Step B23: Using a hyperbolic model, the breach propagation rate is calculated based on the unit transformation factor, breach scour shear stress, and soil initiation shear stress.

[0041] Step B24: Using the breach development model, dynamically adjust the model parameters of the disaster location based on the breach expansion rate.

[0042] In steps B21 to B24 above, the breach scour condition is determined by the relationship between the water flow shear stress and the soil initiation shear stress. In steady uniform flow, the formula for calculating shear stress is: in, The specific gravity of water; The hydraulic radius; For the slope.

[0043] Based on Manning's formula, we can obtain the following formula: Where n is the roughness coefficient, which is typically taken as 0.022-0.030 for natural river channels. v Flow rate.

[0044] The flushing rate is modeled using a hyperbolic method, as follows: in, The shear stress after deducting the critical shear stress, The unit conversion factor is 100 by default. The unit conversion factor is 100 by default. The unit conversion factor is 100 by default. The unit conversion factor is 100 by default. The unit conversion factor is 100 by default. The unit conversion factor is 100 by default.

[0045] Optionally, step B24 includes steps B241 to B242: Step B241: Calculate the current time of the height and width of the hole by multi-directional expansion of the hole expansion model based on the hole expansion speed.

[0046] Step B242: In the case where the vertical hole reaches the hole preset height value, the hole preset height value is determined as the current time of the hole height; the current time of the hole width is obtained by calculating the lateral expansion of the hole development model based on the hole preset height value and the hole expansion speed.

[0047] In the above steps B241 to B242, the hole expansion model is divided into two stages, the first stage is multi-directional expansion, and the expansion direction is divided into vertical and horizontal. The common model is relatively complex and is not suitable for dynamic simulation. To simplify the calculation, the horizontal and vertical expansion speeds are consistent by default, the angle β of the slope and the bottom is assumed to be the natural repose angle, and the initial hole height and width are consistent, and the experience value of 2.28m of the relevant case is taken by default, so that the hole height at time t is represented by formula 5 according to the description in steps B21 to B23: The hole width is represented by formula 6: Where, is the hole width at time t; is the initial hole width; is the angle between the hole side and the hole bottom.

[0048] Because , it can be obtained by arranging: When the vertical hole reaches the maximum value , the second stage is entered, which is lateral expansion, and β is still assumed to be the natural repose angle, so that the hole height at time t is obtained according to the description in steps B21 to B23: The breach width is: Optionally, the model parameters of the catastrophe position include: the breach width; the breach flow, including: the maximum breach flow and the flow process; and the calculation of the breach flow in step 102 according to the model parameters of the catastrophe position and the type of the water conservancy project includes steps C1 to C2: Step C1: calculating the maximum breach flow according to the type of the water conservancy project, the maximum breach flow and the breach width.

[0049] Step C2: generalizing the breach flow process by the quartic parabola method according to the flow coefficient corresponding to the type of the water conservancy project, the maximum breach flow and the breach width.

[0050] In steps C1 to C2, the water conservancy project is divided into three types of dam, gate and embankment, and the damage type is divided into four types of instantaneous full breach of concrete dam, gradual breach of earth-rock dam, instantaneous full breach of gate and gradual breach of embankment.

[0051] The calculation method of the breach flow process of the concrete dam is divided into the calculation of the maximum breach flow and the calculation of the flow process. The calculation method of the maximum breach flow is as follows: wherein, is the maximum breach flow; B is the breach width; is the dam-break action water head.

[0052] The flow process is generally approximated by the quartic parabola method, as shown in Table 1.

[0053] Table 1: Typical flow process table of instantaneous full breach of quartic parabola

[0054] In Table 1, is the maximum breach flow; is the breach flow at time t; t is any time. T is the reservoir emptying time, which can be calculated according to the following formula: wherein, K is a coefficient, generally taken as 4-5, and by default 4.5, and W is the reservoir capacity.

[0055] The breach of the water gate catastrophe is calculated by the weir formula, and the flow process needs to be calculated by the following formula at each step, as follows: wherein, is the flow coefficient, which is selected according to different types of gates.

[0056] The breach flow calculation function of the dike disaster is calculated by using the weir formula (12), wherein the section width B is calculated by using the breach lateral expansion model through the formula 7 or 9.

[0057] In step 103, the flood evolution after the disaster is calculated by using the river flood evolution model according to the model parameters of the disaster location and the breach flow, and a super-standard flood dynamic simulation scenario is obtained.

[0058] In the above step 103, the flood evolution after the disaster is calculated, and the dynamic simulation scenario is corrected by using the real scenario disaster process. The dynamic simulation scenario is cyclically corrected, and the result after each correction is calculated and output for decision reference.

[0059] Optionally, the super-standard flood dynamic simulation method considering the disaster of the flood control project provided by the embodiment of the present application further comprises steps D1 to D2: Step D1: The breach expansion speed in the breach development model and the flow coefficient corresponding to the water conservancy project type are dynamically corrected according to the real scenario disaster process.

[0060] Step D2: The unit conversion factor is dynamically corrected according to the measured dam breach time and the response dam breach flow.

[0061] In the above steps D1 to D2, the correction objects are classified, and the correction objects can be classified into the concrete dam instantaneous full breach flow process correction, the earth and rockfill dam and dike gradual damage expansion model parameter correction, and the weir formula flow coefficient correction. The breach expansion model parameters are corrected. There are many breach expansion model parameters, and complex correction in the dynamic simulation process will increase the calculation burden, therefore, only the breach expansion speed The following back calculation formulas 13 and 14 are obtained by using the formula 7 or 9: The weir formula flow coefficient is corrected, and the flow coefficient correction process needs the measured section width (B), flow (Q) and water head (H), and then the flow coefficient can be back calculated by using the formula 15: The concrete dam instantaneous full breach flow process is corrected. The correction process needs the measured dam breach time and the response dam breach flow, t / T (assuming x) is obtained by referring to Table 1 according to the dam breach flood peak flow Qm and Qo, and the parameter K can be back calculated by combining the formula 11, as shown in the formula 16: The embodiment of the present application constructs a water conservancy project disaster simulation module according to the existing water conservancy project failure function and ideal failure process, so that the model has the ability to simulate the water conservancy project disaster process. In combination with the dynamic simulation technology of the hydrodynamic model, in the simulation process, the underlying surface information is dynamically changed according to the disaster point and the disaster characteristics, so that the hydrodynamic model can simulate the flood evolution scene after the water conservancy project disaster. According to the real scene, the water conservancy project failure function parameters are dynamically corrected, so that the simulation scene can be more consistent with the real flood process, and a more real flood inundation range is provided to support the emergency disposal work of the super-standard flood.

[0062] In order to further explain the present application, the following specific examples are provided.

[0063] Suppose that a super-standard flood occurs in river A, and there is a danger of overtopping the embankment, and the height of the embankment is 5m. If the model does not have the function of considering the water conservancy project disaster, the simulation result is still mainly river flood routing, and the main flood still evolves in the river channel. Figure 3 is the flow chart of the super-standard flood dynamic simulation method considering the disaster of the flood control project provided by the present application after combining with the disaster module. Figure 3 The disaster module in is the disaster simulation module mentioned in the present application. As shown in Figure 3 , it is far from the actual scene. If the water conservancy project disaster is considered, it is assumed that the embankment gradually collapses at 5h in the simulation, and the breach develops to 18m at 5h. At the time of the collapse, the shear stress of each step is dynamically calculated according to formula 1. Assuming that the average flow rate during the entire collapse process is 4m / s, and n=0.025, the shear stress calculation process is as follows: Assuming that the soil incipient shear stress is 30pa, the soil erosion rate is calculated according to the hyperbolic model as follows: According to the breach development model, the lateral breach width reaches 45.11m at 5h.

[0064] Figure 4 is a schematic diagram of the traditional one-dimensional hydrodynamic simulation of river A in the specific example provided by the present application. At the time of the collapse 5h, the measured breach width reaches 50m. According to this, the soil erosion rate is 1.043mm / s. The subsequent simulation is carried out using the corrected soil erosion parameters, and the result is shown in Figure 4 .

[0065] The application provides a super-standard flood dynamic simulation method considering flood control engineering catastrophe, data is collected through a traditional model construction mode, a river flood evolution model is constructed, and the position and type of water conservancy projects are marked in the model; catastrophe information of the water conservancy projects is acquired in real time, the model parameters of the catastrophe position are dynamically adjusted according to the position and catastrophe information of the water conservancy projects; the breach flow is obtained by calculating according to the type of the water conservancy projects and the model parameters of the catastrophe position; the flood evolution after the catastrophe is calculated according to the model parameters of the catastrophe position and the breach flow through the river flood evolution model, and a super-standard flood dynamic simulation scene is obtained. Compared with the scene type and static simulation method for considering the flood control engineering in the prior art, the application can realize dynamic simulation in the model running process, does not need to stop the model and re-model, and calculates the dynamic and gradual catastrophe process of the flood control engineering with the development of the flood, and couples the calculation results to the flood process simulation, so that the simulation of the super-standard flood process is more real.

[0066] The application provides a super-standard flood dynamic simulation method considering flood control engineering catastrophe, data is collected through a traditional model construction mode, a river flood evolution model is constructed, and the position and type of water conservancy projects are marked in the model; catastrophe information of the water conservancy projects is acquired in real time, the model parameters of the catastrophe position are dynamically adjusted according to the position and catastrophe information of the water conservancy projects; the breach flow is obtained by calculating according to the type of the water conservancy projects and the model parameters of the catastrophe position; the flood evolution after the catastrophe is calculated according to the model parameters of the catastrophe position and the breach flow through the river flood evolution model, and a super-standard flood dynamic simulation scene is obtained. Compared with the scene type and static simulation method for considering the flood control engineering in the prior art, the application can realize dynamic simulation in the model running process, does not need to stop the model and re-model, and calculates the dynamic and gradual catastrophe process of the flood control engineering with the development of the flood, and couples the calculation results to the flood process simulation, so that the simulation of the super-standard flood process is more real.

[0067] Figure 5 The application provides a super-standard flood dynamic simulation method considering flood control engineering catastrophe, data is collected through a traditional model construction mode, a river flood evolution model is constructed, and the position and type of water conservancy projects are marked in the model; catastrophe information of the water conservancy projects is acquired in real time, the model parameters of the catastrophe position are dynamically adjusted according to the position and catastrophe information of the water conservancy projects; the breach flow is obtained by calculating according to the type of the water conservancy projects and the model parameters of the catastrophe position; the flood evolution after the catastrophe is calculated according to the model parameters of the catastrophe position and the breach flow through the river flood evolution model, and a super-standard flood dynamic simulation scene is obtained. Compared with the scene type and static simulation method for considering the flood control engineering in the prior art, the application can realize dynamic simulation in the model running process, does not need to stop the model and re-model, and calculates the dynamic and gradual catastrophe process of the flood control engineering with the development of the flood, and couples the calculation results to the flood process simulation, so that the simulation of the super-standard flood process is more real. Figure 5 The application provides a super-standard flood dynamic simulation method considering flood control engineering catastrophe, data is collected through a traditional model construction mode, a river flood evolution model is constructed, and the position and type of water conservancy projects are marked in the model; catastrophe information of the water conservancy projects is acquired in real time, the model parameters of the catastrophe position are dynamically adjusted according to the position and catastrophe information of the water conservancy projects; the breach flow is obtained by calculating according to the type of the water conservancy projects and the model parameters of the catastrophe position; the flood evolution after the catastrophe is calculated according to the model parameters of the catastrophe position and the breach flow through the river flood evolution model, and a super-standard flood dynamic simulation scene is obtained. Compared with the scene type and static simulation method for considering the flood control engineering in the prior art, the application can realize dynamic simulation in the model running process, does not need to stop the model and re-model, and calculates the dynamic and gradual catastrophe process of the flood control engineering with the development of the flood, and couples the calculation results to the flood process simulation, so that the simulation of the super-standard flood process is more real.

[0068] ​​​The application provides a device for dynamic simulation of super-standard flood considering flood control engineering catastrophe, which collects data through a traditional model construction method, constructs a river flood evolution model, and marks the position and type of water conservancy projects in the model; real-time acquisition of catastrophe information of the water conservancy projects, dynamic adjustment of model parameters of the catastrophe position according to the position and catastrophe information of the water conservancy projects; calculation according to the type of the water conservancy projects and the model parameters of the catastrophe position to obtain a breach flow; calculation of the flood evolution after the catastrophe through the river flood evolution model according to the model parameters of the catastrophe position and the breach flow to obtain a super-standard flood dynamic simulation scene. Compared with the scene type and static simulation method for considering the flood control engineering in the prior art, the application can realize dynamic simulation in the model running process without stopping the model and re-modeling process; and the dynamic and gradual catastrophe process of the flood control engineering with the development of the flood is calculated, and the calculation result is coupled to the flood process simulation, so that the simulation of the super-standard flood process is more real.

[0069] Figure 6 An example of a schematic diagram of a physical structure of an electronic device is shown in Figure 6 The electronic device can include a processor 810, a communications interface 820, a memory 830 and a communications bus 840, wherein the processor 810, the communications interface 820 and the memory 830 complete mutual communication through the communications bus 840. The processor 810 can call logical instructions in the memory 830 to execute a method for dynamic simulation of super-standard flood considering flood control engineering catastrophe.

[0070] In addition, the logical instructions in the memory 830 described above can be implemented in the form of a software function unit and sold or used as an independent product, and can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the application essentially or the part that contributes to the prior art or part of the technical solutions can be embodied in the form of a software product, and the computer software product is stored in a storage medium, includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiments of the application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk and various program code storage media.

[0071] In another aspect, the present application also provides a computer program product comprising a computer program, the computer program being stored in a non-transitory computer readable storage medium, and the computer program being executable by a processor to enable the computer to perform the method for dynamic simulation of super-standard flood considering flood control project catastrophe.

[0072] In yet another aspect, the present application also provides a non-transitory computer readable storage medium having stored thereon a computer program, the computer program being executable by a processor to implement the method for dynamic simulation of super-standard flood considering flood control project catastrophe.

[0073] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one place or distributed on multiple network units. Some or all of the modules can be selected to achieve the purpose of the embodiment according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0074] From the above description of the embodiments, those skilled in the art can clearly understand that the embodiments can be implemented by means of software plus necessary general hardware platforms, and of course can also be implemented by hardware. Based on such understanding, the above technical solutions, essentially or in terms of contribution to the prior art, can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some part of the embodiments.

[0075] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for dynamic simulation of a super-standard flood taking into account the catastrophe of flood control works, characterized in that, The method comprises the following steps: collecting data through a traditional model construction method, constructing a river flood evolution model, and marking the position and type of the water conservancy project in the model; obtaining real-time disaster information of the water conservancy project, dynamically adjusting the model parameters of the disaster position according to the position of the water conservancy project and the disaster information, and calculating the breach flow according to the type of the water conservancy project and the model parameters of the disaster position; calculating the post-disaster flood evolution through the river flood evolution model according to the model parameters of the disaster position and the breach flow, and obtaining a super-standard flood dynamic simulation scenario.

2. The method of dynamic simulation of super-standard flood taking into account the flood control works catastrophe according to claim 1, characterized by, The method comprises the following steps: obtaining the disaster time and disaster information of the water conservancy project in real time; in the case that the disaster time is earlier than the current simulation time, returning to the time corresponding to the disaster time, enabling a disaster simulation module, and dynamically adjusting the model parameters of the disaster position according to the position of the water conservancy project and the disaster information; in the case that the disaster time is later than the current simulation time, waiting for the river flood evolution model to calculate to the disaster time, and enabling the disaster simulation module.

3. The method of claim 1, wherein the method further comprises: The disaster information comprises a disaster occurrence position and a disaster type; the disaster type comprises concrete dam instantaneous full breach, earth-rock dam gradual breach, gate instantaneous full breach, and embankment gradual breach; and dynamically adjusting the model parameters of the disaster position according to the position of the water conservancy project and the disaster information comprises the following steps: in the case that the disaster type is concrete dam instantaneous full breach or gate instantaneous full breach, setting the simulation parameters after the water conservancy project is fully breached as the model parameters after the disaster at the time corresponding to the disaster time; in the case that the disaster type is earth-rock dam gradual breach or embankment gradual breach, dynamically adjusting the model parameters of the disaster position according to the position of the water conservancy project, the disaster occurrence position and the disaster type through a breach development model.

4. The method of dynamic simulation of super-standard flood taking into account the flood control works catastrophe according to claim 3, characterized by, Dynamically adjusting the model parameters of the disaster position according to the position of the water conservancy project, the disaster occurrence position and the disaster type through the breach development model comprises the following steps: determining a flow parameter and a soil incipient shear stress according to the position of the water conservancy project and the disaster occurrence position; calculating a breach scouring shear stress based on the flow parameter according to a Manning formula; calculating a breach expansion velocity based on a unit conversion factor, the breach scouring shear stress and the soil incipient shear stress by using a hyperbolic model; and dynamically adjusting the model parameters of the disaster position based on the breach expansion velocity through the breach development model.

5. The method for dynamic simulation of super-standard flood taking into account the flood control works catastrophe according to claim 4, characterized by, Dynamically adjusting the model parameters of the disaster position based on the breach expansion velocity through the breach development model comprises the following steps: calculating a breach height and a breach width at the current time based on the breach expansion velocity through multi-directional expansion of the breach development model; in the case that a vertical breach reaches a breach preset height value, determining the breach preset height value as the breach height at the current time; and calculating the breach width at the current time based on the breach preset height value and the breach expansion velocity through lateral expansion of the breach development model.

6. The method of claim 1, wherein the method further comprises: The model parameters of the disaster location include: breach width; the breach flow includes: breach maximum flow and flow process; the calculation of the breach flow according to the type of the water conservancy project and the model parameters of the disaster location includes: According to the type of the water conservancy project, the breach maximum flow and the breach width, the breach maximum flow is calculated. According to the type of the water conservancy project, the breach maximum flow and the breach width, the breach maximum flow is calculated.

7. The method of dynamic simulation of supercritical flood taking into account the flood control works catastrophe according to claim 6, characterized by, The method further includes: According to the disaster process of the real scene, the breach expansion speed in the breach development model and the flow coefficient corresponding to the type of the water conservancy project are dynamically corrected. According to the measured dam break time and the response dam break flow, the unit conversion factor is dynamically corrected.

8. A device for dynamic simulation of a super-standard flood taking into account a flood control works catastrophe, characterized in that, It includes: A data collection and labeling module is used to collect data through a traditional model construction method, construct a river flood evolution model, and label the water conservancy project location and the type of the water conservancy project in the model; A parameter dynamic adjustment module is used to obtain disaster information of the water conservancy project in real time, dynamically adjust the model parameters of the disaster location according to the water conservancy project location and the disaster information, and calculate the breach flow according to the type of the water conservancy project and the model parameters of the disaster location; A scene simulation module is used to calculate the flood evolution after the disaster through the river flood evolution model according to the model parameters of the disaster location and the breach flow, and obtain a dynamic simulation scene of the super-standard flood.

9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and running on the processor, characterized in that, The processor executes the computer program to realize the super-standard flood dynamic simulation method considering the disaster of the flood control project according to any one of claims 1 to 7. 10.A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to realize the super-standard flood dynamic simulation method considering the disaster of the flood control project according to any one of claims 1 to 7.

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