Three-stage cooperative scheduling method and system for emergency disposal of upstream reservoir in barrier lake

Abstract

The invention discloses a three-stage cooperative scheduling method and system for emergency disposal of an upstream reservoir in a barrier lake, and belongs to the field of emergency disposal of barrier lakes. The method comprises the following steps: 1) establishing an upstream reservoir scheduling three-stage quantitative model which comprises a barrier lake water level rising initial stage S1, a barrier lake overcurrent development stage S2 and a barrier lake water level falling stage S3; (2) for the stage S1, under the condition that the upstream reservoir does not overtow the dam, the minimum discharged flow of the upstream reservoir is adopted for controlling and dispatching; (3) for the stage S2, under the condition that the weir body is not scoured to cause instability due to overlarge flow, the maximum discharged flow of the upstream reservoir is adopted for controlling and dispatching; 4, for the stage S3, under the condition that the upstream reservoir does not overflow, the upstream reservoir minimum discharge flow control scheduling is adopted. According to the method, the construction window period of emergency measures of the barrier lake is prolonged, the stability of the barrier body and the burst flood risk are dynamically balanced, and a scientific basis is provided for safe disposal of the barrier lake.

Description

Technical Field

[0001] The present invention relates to the field of emergency disposal of barrier lakes, and in particular to a three-stage coordinated dispatching method and system for upstream reservoirs in emergency disposal of barrier lakes. Background Art

[0002] A barrier lake is a natural dam-like reservoir formed by a river channel blocked by natural disasters such as landslides and earthquake collapses. It is characterized by sudden onset, high risk of breach, and widespread disaster risk. Once a barrier lake breaches, its peak flood flow can reach dozens of times the normal flow of the river, posing a serious threat to the safety of life and property downstream. For example, in 2000, the peak flow of a barrier lake reached 124,000 m³ / s, far exceeding the carrying capacity of the downstream river. In 2018, a barrier lake also breached twice, causing significant economic losses. Current upstream reservoir operation methods for emergency response to barrier lakes have the following flaws: First, traditional methods fail to develop differentiated upstream reservoir operation methods based on the staged characteristics of barrier lake development; second, the dynamic control of downstream discharge from upstream reservoirs at each stage is unclear.

[0003] Therefore, it is urgent to establish a multi-stage collaborative scheduling method and system based on the dynamic evolution characteristics of the landslide lake. Through phased modeling, multi-constraint coupling and dynamic feedback mechanism, the construction window period of the landslide lake rescue measures can be extended, and the dynamic balance between the stability of the landslide body and the risk of burst floods can be achieved, providing a scientific basis for the safe disposal of the landslide lake. Summary of the Invention

[0004] In order to address the shortcomings of the existing technology, the present invention proposes a multi-stage collaborative scheduling method and system based on the dynamic evolution characteristics of the landslide lake. Through phased modeling, multi-constraint coupling and dynamic feedback mechanism, a differentiated scheduling method for upstream reservoirs based on the stage characteristics of the landslide lake development is constructed, so as to extend the construction window period of the landslide lake rescue measures, flatten the flood peak curve of the landslide lake under the condition that the stability of the dam body can be controlled, quickly reduce the water level of the landslide lake, reduce the maximum flow of the burst flood peak, and reduce the risk of burst flood.

[0005] In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

[0006] A three-stage coordinated dispatching method for upstream reservoirs in emergency response to a barrier lake includes the following steps:

[0007] 1) Establish a three-stage quantitative model for upstream reservoir operation, including the initial stage (S1) of the barrier lake water level rise, the stage (S2) of the barrier lake overflow development, and the stage (S3) of the barrier lake water level decline;

[0008] 2) During the initial stage S1 of the barrier lake water level rise, the minimum discharge flow of the upstream reservoir is used for control and dispatch, provided that the upstream reservoir does not overflow.

[0009] 3) For the overflow development stage S2 of the barrier lake, the maximum discharge flow of the upstream reservoir is used for control and dispatch, provided that the barrier body does not become unstable due to scouring caused by excessive flow;

[0010] 4) For the stage S3 of the water level drop of the barrier lake, the minimum discharge flow of the upstream reservoir is used for control and scheduling, provided that the upstream reservoir does not overflow the dam.

[0011] Preferably, in step 1), the three-stage quantization model is defined by the following formula (1):

[0012] ; In formula (1), S is the set of quantitative models for the upstream reservoir operation stage; S1 is the initial stage of the landslide lake water level rise; S2 is the stage of the landslide lake overflow development; S3 is the stage of the landslide lake water level drop; H 堰塞湖库水位 is the water level of the barrier lake reservoir; H 引流槽底板高程 is the elevation of the drainage trough bottom plate; Q 引流槽过流量 Q is the flow rate of the drainage trough; 上游总来水量 is the total water inflow from upstream.

[0013] Preferably, in step 2), the downstream flow control scheduling in stage S1 adopts the following optimization model, as shown in formula (2):

[0014] ; In formula (2), T 施工 is the objective function, is the maximum construction time of the landslide lake rescue measures; V(H 引流槽底板高程 ) is the total storage capacity of the barrier lake when the water level rises to the elevation of the channel bottom plate; V 初 is the initial total storage capacity of the barrier lake; Q 产汇流 (t) is the function of the flow rate of the upstream of the barrier lake changing with time; Q 上游水库 (t) is the time-varying function of the discharge from the reservoir upstream of the barrier lake; Q 不漫坝 (t) is the time-varying function of the discharge flow under the condition that the upstream reservoir does not overflow the dam.

[0015] Preferably,

[0016] Q 产汇流 (t) = R(t) + M(t)

[0017] Where R(t) is the function of the rainfall runoff of the upstream reservoir changing with time, and M(t) is the function of the snowmelt recharge of the upstream reservoir changing with time;

[0018] Q 上游水库 (t) = min[ E(t) , F(t) ]

[0019] Where, E(t) is the function of the upstream reservoir's safe discharge changing with time, and F(t) is the function of the upstream reservoir's safe inflow changing with time;

[0020]

[0021] Where c is the discharge coefficient of the upstream reservoir, N is the current water level of the upstream reservoir, and N0 is the discharge level of the upstream reservoir.

[0022] Preferably, in step 3), the S2 stage downstream flow control scheduling adopts the following optimization model, as shown in formula (3):

[0023] ; In formula (3), Q 引流槽最大过流能力 (t) is the function of the maximum flow capacity of the drainage trough changing with time; Q 引流槽最大抗冲刷流量 Q is the maximum anti-scour flow rate of the drainage trough; 引流槽水力最大过流量 (t) is the function of the maximum hydraulic flow rate of the drainage trough changing with time; C 堰塞体 is the material composition of the dam body; d 50 B is the median particle size of the material composition of the dam body; 引流槽 is the width of the drainage trough bottom; θ 引流槽 H is the slope angle on both sides of the drainage trough; 堰前水深 Q is the water depth in front of the dam; 消能安全最大流量 Q is the maximum flow rate for energy dissipation safety; 上游水库 (t) is the time-varying function of the discharge from the reservoir upstream of the barrier lake; Q 不漫坝 (t) is the time-varying function of the discharge flow under the condition that the upstream reservoir does not overflow the dam.

[0024] Preferably, in step 4), the S3 stage downstream flow control scheduling adopts the following optimization model, as shown in formula (4):

[0025] ; In formula (4), Q 上游水库 (t) is the time-varying function of the discharge from the reservoir upstream of the barrier lake; Q 不漫坝 (t) is the time-varying function of the discharge flow under the condition that the upstream reservoir does not overflow the dam.

[0026] A system for executing the three-stage coordinated dispatching method for upstream reservoirs in emergency disposal of a barrier lake, comprising:

[0027] Data acquisition module, used for real-time monitoring of the water level of the barrier lake reservoir H 堰塞湖库水位 , drainage trough bottom plate elevation H 引流槽底板高程 , drainage trough flow rate Q 引流槽过流量 , total upstream water volume Q 上游总来水量 and geological parameters of the dam body C 堰塞体and d 50 ;

[0028] A stage judgment module is connected to the data acquisition module, and constructs a three-stage quantitative model based on the monitoring data to judge whether the current scheduling stage is the initial stage of water level rise S1, the overflow development stage S2 or the water level drop stage S3;

[0029] Optimized control module, including:

[0030] The S1 control unit is used to calculate the minimum discharge flow that satisfies the upstream reservoir's non-overflow constraint based on the S1 stage discharge flow optimization model, and maximize the emergency construction time T 施工 ;

[0031] The S2 control unit is used to calculate the maximum allowable discharge flow rate based on the S2 stage discharge flow optimization model to ensure that the dam body does not become unstable due to scouring caused by excessive flow;

[0032] The S3 control unit is used to calculate the minimum discharge flow that satisfies the upstream reservoir non-overflow constraint based on the S3 stage discharge flow optimization model;

[0033] An execution module, connected to the optimization control module, adjusts the opening state of the upstream reservoir discharge facilities in real time according to the optimization results of each stage to achieve precise flow control;

[0034] The dynamic feedback module is used to update the stage judgment results based on real-time monitoring data and trigger the optimization control module to recalculate the discharge flow strategy to ensure a dynamic balance between the stability of the landslide dam and the risk of collapse.

[0035] Preferably, the data acquisition module includes a water level sensor, a flow meter, a geological detector and a data fusion processor, which is used to realize real-time acquisition and calibration of multi-source data.

[0036] Preferably, the dynamic feedback module predicts the changing trend of the water level of the barrier lake through a machine learning algorithm and dynamically adjusts the stage judgment threshold.

[0037] The three-stage coordinated dispatching method for upstream reservoirs in emergency treatment of a barrier lake according to the present invention has the following advantages and beneficial effects:

[0038] (1) Based on the evolution characteristics of the barrier lake, this paper first creates a three-stage quantitative model for upstream reservoirs (S1 water level rising period - S2 overflow development period - S3 water level falling period). By establishing stage judgment indicators through key parameters such as water level elevation and overflow, it achieves a precise match between upstream reservoir scheduling and the dynamic development of the barrier lake.

[0039] (2) This invention constructs a three-goal coordination system of "construction window period - landslide body stability - flood peak reduction": In the S1 stage, the minimum discharge strategy is adopted to maximize the extension of emergency construction time; in the S2 stage, the hydrodynamics, soil mechanics and reservoir operation theory are integrated to propose a method including geological parameters (d 50 particle size), hydraulic parameters (B 引流槽 ,θ 引流槽 ), reservoir safety boundary (Q 不漫坝 ) and other multi-dimensional constraint models, and then introduced anti-scour constraints to achieve dual guarantees of flow control and structural stability of the barrier body, thereby reducing the rate of water level rise in the barrier lake reservoir. In the S3 phase, a peak reduction strategy was implemented to effectively reduce peak flood flows and mitigate downstream flooding.

[0040] (3) The present invention has wide applicability and is applicable to rescue operations at landslide-dammed lakes of various risk levels. DETAILED DESCRIPTION

[0041] The specific embodiments of the present invention are described below to facilitate those skilled in the art to understand the present invention. Obviously, the present invention is not limited to the scope of the specific embodiments.

[0042] The present invention provides a three-stage coordinated dispatching method for upstream reservoirs in emergency disposal of a barrier lake, comprising the following steps:

[0043] 1) Establish a three-stage quantitative model for upstream reservoir operation

[0044] Based on H 堰塞湖库水位 、H 引流槽底板高程 , Q 引流槽过流量 and Q 上游总来水量 , a three-stage quantitative model for upstream reservoir operation is constructed, as shown in formula (1):

[0045]

[0046] In formula (1), S is the quantitative model set of the upstream reservoir operation stage, which includes three elements: S1 is the initial stage of the landslide lake water level rise, from "the formation of the landslide lake" to "the water level of the landslide lake rises to the elevation of the drainage channel bottom plate", and the judgment index is H. 堰塞湖库水位 ≤H 引流槽底板高程 S2 is the development stage of the barrier lake flow, from "the barrier lake water level is equal to the bottom elevation of the drainage channel" to "the flow rate of the barrier body drainage channel reaches the water flow from the upstream of the barrier lake", the judgment mark is H 堰塞湖库水位 >H 引流槽底板高程 ; and Q 引流槽过流量 ≤Q 上游总来水量 S3 is the stage of water level drop of the barrier lake, from "the flow of the drainage channel of the barrier body is greater than the water flow from the upstream of the barrier lake" to "the end", the judgment mark is Q 引流槽过流量 >Q 上游总来水量 .

[0047] 2) S1 stage upstream reservoir discharge flow control model

[0048] The control principle of the upstream reservoir discharge flow in the S1 stage is: under the premise of ensuring that the reservoir does not overflow, the upstream reservoir discharge flow should be reduced as much as possible to provide the maximum construction time for emergency measures such as the excavation of the drainage channel of the barrier lake, as shown in formula (2):

[0049] ; In formula (2): T 施工 is the objective function, and is the maximum construction time for emergency measures such as digging the drainage channel of the barrier lake. 引流槽底板高程 ) is the total storage capacity of the barrier lake when the water level rises to the elevation of the channel bottom plate, V 初 is the initial total storage capacity of the barrier lake, Q 产汇流 (t) is the function of the flow rate of the upstream of the barrier lake changing with time, Q 上游水库 (t) is the time-varying function of the discharge from the reservoir upstream of the barrier lake, Q 不漫坝 (t) is the time-varying function of the discharge flow under the condition that the upstream reservoir does not overflow the dam.

[0050] Q 产汇流 (t) = R(t) + M(t)

[0051] Where R(t) is the function of the rainfall runoff of the upstream reservoir changing with time, and M(t) is the function of the snowmelt recharge of the upstream reservoir changing with time;

[0052] Q 上游水库 (t) = min[ E(t) , F(t) ]

[0053] Where, E(t) is the function of the upstream reservoir's safe discharge changing with time, and F(t) is the function of the upstream reservoir's safe inflow changing with time;

[0054]

[0055] Where c is the discharge coefficient of the upstream reservoir, N is the current water level of the upstream reservoir, and N0 is the discharge level of the upstream reservoir.

[0056] According to the discharge control model of the upstream reservoir in the S1 stage, we first collect basic data such as topography, water level and storage capacity curve of the barrier lake, and design parameters of the diversion channel, and calculate the total storage capacity V (H) of the barrier lake when the water level of the barrier lake rises to the elevation of the channel bottom plate. 引流槽底板高程 ) and the initial total storage capacity of the barrier lake V 初 , based on Q 上游水库 (t)>Q 不漫坝 (t) Constraints, combined with the upstream reservoir operation rules, calculate Q 上游水库(t) changes with t to its minimum value. Then Q 上游水库 (t) is substituted into the objective function to obtain T 施工 Maximum value.

[0057] 3) S2 stage upstream reservoir discharge flow control model

[0058] The control principle of the discharge flow of the upstream reservoir in the S2 stage is: the discharge flow should not only ensure that the dam body does not become unstable due to scouring caused by excessive flow, but also ensure that the discharge flow of the drainage channel can quickly reach Q 最大下泄流量 , so as to achieve the purpose of reducing the rising rate of the water level of the barrier lake reservoir, as shown in formula (3):

[0059]

[0060] Where: C 堰塞体 is the material composition of the dam body, d 50 It is the median particle size of the material composition of the dam body.

[0061] According to the discharge control model of the upstream reservoir in the S2 stage, we know that firstly, according to the material composition of the landslide body, C 堰塞体 and the median particle size d of the material composition of the dam body 50 , calculate Q 引流槽最大抗冲刷流量 ; Secondly, according to the designed drainage groove bottom width B 引流槽 , the slope angles on both sides of the drainage trough are θ 引流槽 , and the water depth in front of the dam H 堰前水深 , calculate Q 引流槽水力最大过流量 (t) changes with time. Take Q 引流槽最大抗冲刷流量 and Q 引流槽水力最大过流量 (t) large value, calculate Q 引流槽最大过流能力 (t) changes with time. Based on Q 上游水库 (t)>Q 不漫坝 (t) and 消能安全最大流量 Constraints, combined with the time-varying function Q of the upstream runoff flow of the barrier lake 产汇流 (t), calculate Q 上游水库 (t) The maximum value of each time stage, thereby achieving the purpose of reducing the rising rate of the water level of the barrier lake reservoir.

[0062] 4) Upstream reservoir discharge control model in S3 stage

[0063] The control principle of the discharge flow from the upstream reservoir in the S3 stage is: after the S2 stage, the dam has entered the stage of full incision. In order to reduce the downstream flood disaster, under the condition that the upstream reservoir does not overflow, the Q 上游水库 (t) The minimum value of each time stage, as shown in formula (4):

[0064] ; ​In formula (4), Q 上游水库 (t) is the time-varying function of the discharge from the reservoir upstream of the barrier lake; Q 不漫坝 (t) is the time-varying function of the discharge flow under the condition that the upstream reservoir does not overflow the dam.

[0065] Through the above steps, the implementation of the three-stage coordinated dispatching method of the upstream reservoir for emergency disposal of the barrier lake of the present invention is completed.

[0066] Based on a general inventive concept, an embodiment of the present invention further provides a system for executing the three-stage coordinated dispatching method of upstream reservoirs for emergency disposal of a barrier lake, comprising:

[0067] Data acquisition module, used for real-time monitoring of the water level of the barrier lake reservoir H 堰塞湖库水位 , drainage trough bottom plate elevation H 引流槽底板高程 , drainage trough flow rate Q 引流槽过流量 , total upstream water volume Q 上游总来水量 and geological parameters of the dam body C 堰塞体 and d 50 ;

[0068] A stage judgment module is connected to the data acquisition module, and constructs a three-stage quantitative model based on the monitoring data to judge whether the current scheduling stage is the initial stage of water level rise S1, the overflow development stage S2, or the water level drop stage S3. The judgment conditions are shown in Formula 1.

[0069] Optimized control module, including:

[0070] The S1 control unit is used to calculate the minimum discharge flow that satisfies the upstream reservoir's non-overflow constraint based on the S1 stage discharge flow optimization model (as shown in Equation 2) and maximize the emergency construction time T 施工 ;

[0071] The S2 control unit is used to calculate the maximum allowable discharge flow rate based on the S2 stage discharge flow optimization model (as shown in Equation 3) to ensure that the dam body does not become unstable due to scouring caused by excessive flow;

[0072] The S3 control unit is used to calculate the minimum discharge flow that satisfies the upstream reservoir non-overflow constraint based on the S3 stage discharge flow optimization model (as shown in Equation 4);

[0073] An execution module, connected to the optimization control module, adjusts the opening state of the upstream reservoir discharge facilities in real time according to the optimization results of each stage to achieve precise flow control;

[0074] The dynamic feedback module is used to update the stage judgment results based on real-time monitoring data and trigger the optimization control module to recalculate the discharge flow strategy to ensure a dynamic balance between the stability of the landslide dam and the risk of collapse.

[0075] Preferably, the data acquisition module includes a water level sensor, a flow meter, a geological detector and a data fusion processor, which is used to realize real-time acquisition and calibration of multi-source data.

[0076] Preferably, the dynamic feedback module predicts the changing trend of the water level of the barrier lake through a machine learning algorithm and dynamically adjusts the stage judgment threshold.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0078] The contents not described in detail in the specification of the present invention belong to the prior art known to those skilled in the art.

Claims

1. A three-stage coordinated dispatching method for upstream reservoirs in emergency response to a barrier lake, characterized in that: The steps include: 1) Establish a three-stage quantitative model for upstream reservoir operation, including the initial stage (S1) of the barrier lake water level rise, the stage (S2) of the barrier lake overflow development, and the stage (S3) of the barrier lake water level decline; 2) During the initial stage S1 of the barrier lake water level rise, the minimum downstream flow control scheduling of the upstream reservoir is adopted, provided that the upstream reservoir does not overflow the dam. 3) For the overflow development stage S2 of the barrier lake, the maximum discharge flow of the upstream reservoir is used for control and dispatch, provided that the barrier body does not become unstable due to scouring caused by excessive flow; 4) For the stage S3 of the water level drop of the barrier lake, the minimum discharge flow of the upstream reservoir is used for control and scheduling, provided that the upstream reservoir does not overflow the dam.

2. The three-stage coordinated dispatching method for upstream reservoirs in emergency disposal of barrier lakes according to claim 1 is characterized in that: In step 1), the three-stage quantization model is defined by the following formula (1): ； In formula (1), S is the set of quantitative models for the upstream reservoir operation stage; S1 is the initial stage of the landslide lake water level rise; S2 is the stage of the landslide lake overflow development; S3 is the stage of the landslide lake water level drop; H 堰塞湖库水位 is the water level of the barrier lake reservoir; H 引流槽底板高程 is the elevation of the drainage trough bottom plate; Q 引流槽过流量 The flow rate of the drainage trough; Q 上游总来水量 is the total water inflow from upstream.

3. The three-stage coordinated dispatching method for upstream reservoirs in emergency disposal of barrier lakes according to claim 1 is characterized in that: In step 2), the downstream flow control scheduling in stage S1 adopts the following optimization model, as shown in formula (2): ； In formula (2), T 施工 is the objective function, is the maximum construction time of the landslide lake rescue measures; V(H 引流槽底板高程 ) is the total storage capacity of the barrier lake when the water level rises to the elevation of the channel bottom plate; V 初 is the initial total storage capacity of the barrier lake; Q 产汇流 (t) is the function of the flow rate of the upstream of the barrier lake changing with time; Q 上游水库 (t) is the time-varying function of the discharge from the reservoir upstream of the barrier lake; Q 不漫坝 (t) is the time-varying function of the discharge flow under the condition that the upstream reservoir does not overflow the dam.

4. The three-stage coordinated dispatching method for upstream reservoirs for emergency disposal of a barrier lake according to claim 3 is characterized by: Q 产汇流 (t) = R(t) + M(t); Where R(t) is the function of the rainfall runoff of the upstream reservoir changing with time, and M(t) is the function of the snowmelt recharge of the upstream reservoir changing with time; Q 上游水库 (t)= min[ E(t) , F(t) ]; Where, E(t) is the function of the upstream reservoir's safe discharge changing with time, and F(t) is the function of the upstream reservoir's safe inflow changing with time; ； Where c is the discharge coefficient of the upstream reservoir, N is the current water level of the upstream reservoir, and N0 is the discharge level of the upstream reservoir.

5. The three-stage coordinated dispatching method for upstream reservoirs in emergency disposal of barrier lakes according to claim 2 is characterized in that: In step 3), the downstream flow control scheduling in stage S2 adopts the following optimization model, as shown in formula (3): ； In formula (3), Q 引流槽最大过流能力 (t) is the function of the maximum flow capacity of the drainage trough changing with time; Q 引流槽最大抗冲刷流量 Q is the maximum anti-scour flow rate of the drainage trough; 引流槽水力最大过流量 (t) is the function of the maximum hydraulic flow rate of the drainage trough changing with time; C 堰塞体 is the material composition of the dam body; d 50 B is the median particle size of the material composition of the dam body; 引流槽 is the width of the drainage trough bottom; θ 引流槽 H is the slope angle on both sides of the drainage trough; 堰前水深 Q is the water depth in front of the dam; 消能安全最大流量 It is the maximum flow rate for energy dissipation safety; Q 上游水库 （t） is the time-varying function of the discharge from the reservoir upstream of the barrier lake; Q 不漫坝 （t） It is the function of the discharge flow changing with time under the condition that the upstream reservoir does not overflow the dam.

6. The three-stage coordinated dispatching method for upstream reservoirs in emergency disposal of barrier lakes according to claim 2 is characterized in that: In step 4), the downstream flow control scheduling in stage S3 adopts the following optimization model, as shown in formula (4): ； In formula (4), Q 上游水库 （t） is the time-varying function of the discharge from the reservoir upstream of the barrier lake; Q 不漫坝 （t） It is the function of the discharge flow changing with time under the condition that the upstream reservoir does not overflow the dam.

7. A system for executing the three-stage coordinated dispatching method for upstream reservoirs in emergency response to a landslide lake according to any one of claims 1 to 6, characterized in that: include: Data acquisition module, used for real-time monitoring of the water level of the barrier lake reservoir H 堰塞湖库水位 , drainage trough bottom plate elevation H 引流槽底板高程 , drainage trough flow rate Q 引流槽过流量 , total upstream water volume Q 上游总来水量 and geological parameters of the dam body C 堰塞体 and d 50 ; A stage judgment module is connected to the data acquisition module, and constructs a three-stage quantitative model based on the monitoring data to judge whether the current scheduling stage is the initial stage of water level rise S1, the overflow development stage S2 or the water level drop stage S3; Optimized control module, including: The S1 control unit is used to calculate the minimum discharge flow that satisfies the upstream reservoir's non-overflow constraint based on the S1 stage discharge flow optimization model, and maximize the emergency construction time T 施工 ; The S2 control unit is used to calculate the maximum allowable discharge flow rate based on the S2 stage discharge flow optimization model to ensure that the dam body does not become unstable due to scouring caused by excessive flow; The S3 control unit is used to calculate the minimum discharge flow that satisfies the upstream reservoir non-overflow constraint based on the S3 stage discharge flow optimization model; An execution module, connected to the optimization control module, adjusts the opening state of the upstream reservoir discharge facilities in real time according to the optimization results of each stage to achieve precise flow control; The dynamic feedback module is used to update the stage judgment results based on real-time monitoring data and trigger the optimization control module to recalculate the discharge flow strategy to ensure a dynamic balance between the stability of the landslide dam and the risk of collapse.

8. The three-stage coordinated dispatching system for upstream reservoirs for emergency disposal of barrier lakes according to claim 7 is characterized in that: The data acquisition module includes a water level sensor, a flow meter, a geological detector and a data fusion processor, and is used to realize real-time acquisition and calibration of multi-source data.

9. The three-stage coordinated dispatching system for upstream reservoirs in emergency disposal of barrier lakes according to claim 7 is characterized in that: The dynamic feedback module predicts the changing trend of the water level of the barrier lake through a machine learning algorithm and dynamically adjusts the stage judgment threshold.

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