Emergency flood prevention disposal method and device for valley type dry ash storage yard and electronic equipment

Abstract

This application relates to a flood control emergency response method, device, and electronic equipment for a valley-type dry ash storage yard. The method includes: responding to a preset emergency condition where the water level of the downstream drainage well's tail-end dammed lake meets the required emergency conditions, initiating emergency drainage measures to excavate a flood discharge channel and construct a flood control work surface; using a combination of hydraulic flushing and slurry pumping to clean the surrounding sediment deposits of the upstream drainage well; and after the drainage functions of both the downstream and upstream drainage wells are restored, reshaping the ash surface morphology of the entire valley-type dry ash storage yard based on the flood control work surface to construct a flood discharge system with the drainage wells as the lowest control points within the yard. This solves the problems in related technologies where heavy rain causes drainage wells to be buried by sediment, leading to drainage system failure, rapid rise in water level within the storage yard, and a lack of systematic emergency response measures, resulting in a sharp shortening or even disappearance of the dry beach in front of the dam, posing a risk of ash water overflow and dam collapse.

Description

Technical Field

[0001] This application relates to the technical field of solid waste treatment and ash storage yard operation and management of coal-fired power plants, and in particular to a flood control emergency response method, device and electronic equipment for a valley-type dry ash storage yard. Background Technology

[0002] Valley-type dry ash storage yards are sites where dry ash is stored by constructing dams using valley terrain. They are critical environmental facilities for ensuring the disposal of solid waste from coal-fired power plants and the continuous and stable production of electricity; their safe operation is vital to the safety of life and property downstream. Valley-type dry ash storage yards typically have a drainage system consisting of vertical drainage shafts and horizontal drainage pipes. Rainwater and leachate from the ash flow in stratified layers from the drainage holes in the shafts, then enter the horizontal drainage pipes buried at the bottom of the storage yard, and finally discharge into an external collection pool. During normal operation, the water level inside the storage yard can be controlled by sealing or opening drainage holes at different heights, ensuring sufficient dry beach length in front of the dam, thereby maintaining the safe and stable operation of the ash storage yard.

[0003] In related technologies, operation and maintenance methods mainly include the management of ash stockpile morphology, flood control storage capacity, drainage facilities, and external facilities. Specifically, the stockpile area, height, and slope of dry ash are planned according to design requirements and compacted regularly to enhance the density and stability of the ash body; flood control storage capacity is reserved by controlling the height of the ash stockpile and the length of the dry beach to cope with the design rainstorm flood; the integrity of drainage shafts and horizontal pipes is checked regularly, and debris at the wellheads is cleaned to keep the drainage holes unobstructed; at the same time, the external water collection pool and sedimentation pool are cleaned regularly to maintain their buffering and sedimentation functions and prevent ash water from overflowing.

[0004] However, in related technologies, during extreme weather such as continuous or torrential rain, rainwater runoff carries ash and slag, burying low-level drainage holes, causing the drainage system to fail, the water level in the reservoir to rise rapidly, and there is a lack of systematic and efficient emergency response measures. The deep water and soft ash make mechanical dredging impossible. In addition, ash piling operations are out of sync with flood control requirements. Routine ash piling operations often result in excessively high ash piles in the area in front of the dam, encroaching on the flood control capacity and causing the dry beach in front of the dam to shorten or even disappear drastically. There is an emergency situation with the risk of ash water overflow and dam collapse, which urgently needs to be improved. Summary of the Invention

[0005] This application provides a flood control emergency response method, device, and electronic equipment for a valley-type dry ash storage yard, to solve the problems in related technologies, such as the failure of the drainage system due to rainstorm runoff carrying ash and slag burying low-level drainage holes during continuous or torrential rains and other extreme weather, the rapid rise of water level in the storage yard, the lack of systematic and efficient emergency response measures, the disconnect between ash storage operations and flood control requirements, the sharp shortening or even disappearance of the dry beach in front of the dam, and the risk of ash water overflow and dam collapse.

[0006] The first aspect of this application provides a flood control emergency response method for a valley-type dry ash storage yard, comprising the following steps: In response to the water level of the landslide dam at the tail end of the downstream drainage shaft of the valley-type dry ash storage yard meeting a preset emergency condition, emergency drainage measures are initiated to excavate a flood discharge channel until the channel is cleared, determining that the drainage function of the downstream drainage shaft has been restored, and constructing a flood control work surface; A combined process of hydraulic flushing and slurry pumping is used to clean the surrounding deposited ash and slag of the upstream drainage shaft of the valley-type dry ash storage yard until the ash surface height around the upstream drainage shaft drops to a first preset elevation, determining that the drainage function of the upstream drainage shaft has been restored; After the drainage functions of both the downstream and upstream drainage shafts have been restored, based on the flood control work surface, the ash surface morphology of the entire storage area of ​​the valley-type dry ash storage yard is reshaped to construct a flood discharge system with the drainage shafts as the low control points within the yard, so as to utilize the flood discharge system for flood control emergency response of the valley-type dry ash storage yard.

[0007] Through the above-mentioned technical means, the embodiments of this application can first lower the water level at the tail end of the reservoir to create a working surface, and then clean up the sediment around the upstream drainage shaft. The entire reservoir area of ​​the valley-type dry ash storage yard is systematically reshaped to construct a drainage system with the drainage shaft as the control low point in the field and with stable flood discharge capacity. This allows for the rapid and effective clearing of buried drainage shafts, quick restoration of drainage capacity, and reshaping of the reservoir area's flood discharge system. It also eliminates safety hazards, improves emergency response efficiency, and is easy to implement and promote on-site, achieving a balance between flood control safety and environmental protection.

[0008] Optionally, in one embodiment of this application, the initiation of emergency drainage measures to excavate a flood passage includes: using a siphon or submersible pump to perform non-mechanical excavation in the area between the tail dammed lake and the downstream drainage shaft until the water level of the tail dammed lake drops to a second preset elevation; after the water level of the tail dammed lake drops to the second preset elevation, using an excavator to excavate a drainage ditch from the tail dammed lake toward the downstream drainage shaft to excavate the flood passage.

[0009] Through the above-mentioned technical means, the embodiments of this application can quickly reduce the water level of the tail-end landslide dam without introducing large machinery into soft or waterlogged areas. This avoids problems such as equipment overturning and safety risks to workers that may be caused by direct mechanical excavation under high water conditions, and opens up a flood passage with stable flow capacity from the landslide dam to the downstream shaft, creating stable construction conditions for subsequent mechanical operations.

[0010] Optionally, in one embodiment of this application, the process of using a combination of hydraulic flushing and slurry pumping to clean the surrounding sediment deposits of the upstream drainage shaft of the valley-type dry ash storage yard until the height of the surrounding sediment surface of the upstream drainage shaft drops to a first preset elevation includes: using the tail-end dammed lake to flush the sediment deposits around the upstream drainage shaft and obtain slurry made from the surrounding sediment deposits; pumping the slurry to a preset sedimentation area and performing sedimentation and solidification treatment on the preset sedimentation area until the height of the surrounding sediment surface of the upstream drainage shaft drops to the first preset elevation.

[0011] Through the above-mentioned technical means, the embodiments of this application can solve the problem of mechanical dredging on ash surfaces with high moisture content by combining hydraulic flushing and slurry pumping. This can quickly and effectively dredge buried drainage shafts, restore the core drainage function, and achieve efficient cleaning and resource-based disposal of deposited ash, thereby improving the efficiency and safety of cleaning deposited ash around upstream drainage shafts.

[0012] Optionally, in one embodiment of this application, the step of reshaping the ash surface morphology of the entire reservoir area of ​​the valley-type dry ash storage yard based on the flood control operation surface to construct a flood discharge and drainage system with drainage shafts as the control low points within the site includes: dividing the reservoir area into different regions according to the location of the drainage shafts, reshaping the ash surface morphology in each region to construct a flood discharge slope that meets a preset inclination angle in each region; and constructing a flood discharge and drainage system with drainage shafts as the control low points within the site based on the flood discharge slope and preset elevation control conditions.

[0013] Through the above-mentioned technical means, the embodiments of this application can carry out ash surface morphology reshaping in a zoned operation manner and construct a flood discharge and drainage system with drainage shafts as the low control points in the site. This fundamentally solves the problems of unreasonable ash storage morphology and insufficient flood control capacity in the reservoir area, constructs a long-term flood discharge system, reduces the risk of dam collapse and ash water overflow, and improves the overall flood control capacity and operational stability of the valley-type dry ash storage site.

[0014] Optionally, in one embodiment of this application, the step of dividing the reservoir area into different regions according to the location of the drainage shaft, and reshaping the gray surface morphology in each region to construct a flood discharge slope that meets a preset inclination angle in each region includes: reshaping the gray surface morphology in each region to obtain a first slope and a second slope, and covering the first slope; and performing layered compaction on the second slope and covering it with slope protection material to construct the flood discharge slope based on the first slope and the second slope.

[0015] Through the above-mentioned technical means, the embodiments of this application can cover the first slope formed after reshaping to prevent rainwater from eroding and forming gullies again, and compact the second slope in layers and cover it with slope protection materials to improve the density of the slope and isolate rainwater infiltration, thereby ensuring the flood discharge function and stability of the slope, effectively preventing problems such as ash and slag slippage and blockage of the drainage system caused by slope instability, and further improving the safe operation level of the valley-type dry ash storage yard.

[0016] Optionally, in one embodiment of this application, the preset elevation control condition is that the elevation of the gray surface within a preset range around the drainage shaft is lower than the elevation of the lowest drainage hole.

[0017] Through the above-mentioned technical means, the embodiments of this application can ensure that the elevation of the ash surface within the preset range around the drainage shaft is always lower than the elevation of the bottom drainage hole, fundamentally preventing the problem of ash and slag deposition burying the drainage hole, ensuring that the drainage shaft can perform its drainage function normally under various working conditions, and improving the flood control emergency response capability and safety guarantee level of the valley-type dry ash storage yard under extreme weather conditions.

[0018] The second aspect of this application provides a flood control emergency response device for a valley-type dry ash storage yard, comprising: a drainage module, used to initiate emergency drainage measures to excavate a flood passage channel in response to the water level of the landslide dam at the tail end of the downstream drainage shaft of the valley-type dry ash storage yard meeting a preset emergency condition, until the flood passage channel is opened, determining that the drainage function of the downstream drainage shaft has been restored, and constructing a flood control operation surface; a cleaning module, used to clean the surrounding deposited ash and slag of the upstream drainage shaft of the valley-type dry ash storage yard using a combination of hydraulic flushing and slurry pumping, until the ash surface height around the upstream drainage shaft drops to a first preset elevation, determining that the drainage function of the upstream drainage shaft has been restored; and a construction module, used to reshape the ash surface morphology of the entire storage area of ​​the valley-type dry ash storage yard based on the flood control operation surface after the drainage functions of both the downstream and upstream drainage shafts have been restored, to construct a flood discharge and drainage system with the drainage shafts as the control low points within the yard, so as to utilize the flood discharge and drainage system for flood control emergency response of the valley-type dry ash storage yard.

[0019] Through the above-mentioned technical means, the embodiments of this application can first lower the water level at the tail end of the reservoir to create a working surface, and then clean up the sediment around the upstream drainage shaft. The entire reservoir area of ​​the valley-type dry ash storage yard is systematically reshaped to construct a drainage system with the drainage shaft as the control low point in the field and with stable flood discharge capacity. This allows for the rapid and effective clearing of buried drainage shafts, quick restoration of drainage capacity, and reshaping of the reservoir area's flood discharge system. It also eliminates safety hazards, improves emergency response efficiency, and is easy to implement and promote on-site, achieving a balance between flood control safety and environmental protection.

[0020] Optionally, in one embodiment of this application, the drainage module includes: a first drainage unit, used to perform non-mechanical excavation using a siphon or submersible pump in the area between the tail dammed lake and the downstream drainage shaft until the water level of the tail dammed lake drops to a second preset elevation; and a second drainage unit, used to excavate a drainage ditch from the tail dammed lake toward the downstream drainage shaft using an excavator after the water level of the tail dammed lake drops to the second preset elevation, in order to excavate the flood passage.

[0021] Through the above-mentioned technical means, the embodiments of this application can quickly reduce the water level of the tail-end landslide dam without introducing large machinery into soft or waterlogged areas. This avoids problems such as equipment overturning and safety risks to workers that may be caused by direct mechanical excavation under high water conditions, and opens up a flood passage with stable flow capacity from the landslide dam to the downstream shaft, creating stable construction conditions for subsequent mechanical operations.

[0022] Optionally, in one embodiment of this application, the cleaning module includes: a flushing unit, used to flush the surrounding sediment of the upstream drainage shaft using the tail dammed lake, and obtain slurry made from the surrounding sediment; and a processing unit, used to pump the slurry to a preset sedimentation area and perform sedimentation and solidification treatment on the preset sedimentation area until the height of the surrounding ash surface of the upstream drainage shaft drops to the first preset elevation.

[0023] Through the above-mentioned technical means, the embodiments of this application can solve the problem of mechanical dredging on ash surfaces with high moisture content by combining hydraulic flushing and slurry pumping. This can quickly and effectively dredge buried drainage shafts, restore the core drainage function, and achieve efficient cleaning and resource-based disposal of deposited ash, thereby improving the efficiency and safety of cleaning deposited ash around upstream drainage shafts.

[0024] Optionally, in one embodiment of this application, the construction module includes: a first construction unit, used to divide the reservoir area into different regions according to the location of the drainage shaft, and to reshape the gray surface morphology in each region to construct a flood discharge slope that meets a preset tilt angle in each region; and a second construction unit, used to construct a flood discharge and drainage system with the drainage shaft as the site control low point based on the flood discharge slope and preset elevation control conditions.

[0025] Through the above-mentioned technical means, the embodiments of this application can carry out ash surface morphology reshaping in a zoned operation manner and construct a flood discharge and drainage system with drainage shafts as the low control points in the site. This fundamentally solves the problems of unreasonable ash storage morphology and insufficient flood control capacity in the reservoir area, constructs a long-term flood discharge system, reduces the risk of dam collapse and ash water overflow, and improves the overall flood control capacity and operational stability of the valley-type dry ash storage site.

[0026] Optionally, in one embodiment of this application, the first building unit includes: a covering subunit for reshaping the gray surface morphology in each region to obtain a first slope and a second slope, and covering the first slope; and a building subunit for performing layered compaction on the second slope and covering it with slope protection material to build the flood discharge slope based on the first slope and the second slope.

[0027] Through the above-mentioned technical means, the embodiments of this application can cover the first slope formed after reshaping to prevent rainwater from eroding and forming gullies again, and compact the second slope in layers and cover it with slope protection materials to improve the density of the slope and isolate rainwater infiltration, thereby ensuring the flood discharge function and stability of the slope, effectively preventing problems such as ash and slag slippage and blockage of the drainage system caused by slope instability, and further improving the safe operation level of the valley-type dry ash storage yard.

[0028] Through the above-mentioned technical means, the embodiments of this application can ensure that the elevation of the ash surface within the preset range around the drainage shaft is always lower than the elevation of the bottom drainage hole, fundamentally preventing the problem of ash and slag deposition burying the drainage hole, ensuring that the drainage shaft can perform its drainage function normally under various working conditions, and improving the flood control emergency response capability and safety guarantee level of the valley-type dry ash storage yard under extreme weather conditions.

[0029] Optionally, in one embodiment of this application, the preset elevation control condition is that the elevation of the gray surface within a preset range around the drainage shaft is lower than the elevation of the lowest drainage hole.

[0030] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the program to implement the flood control emergency response method for valley-type dry ash storage sites as described in the above embodiments.

[0031] A fourth aspect of this application provides a non-volatile computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described flood control emergency response method for valley-type dry ash storage sites.

[0032] A fifth aspect of this application provides a computer program product that stores a computer program that, when executed by a processor, implements the above-described flood control emergency response method for valley-type dry ash storage sites.

[0033] This application's embodiment first lowers the reservoir tailwater level to create a working surface, then clears the deposited ash and slag around the upstream drainage shafts. It systematically reshapes the ash surface morphology of the entire reservoir area of ​​the valley-type dry ash storage yard, constructing a drainage system with drainage shafts as the control low points within the site and possessing stable flood discharge capacity. This quickly and effectively dredges buried drainage shafts, rapidly restores drainage capacity, reshapes the reservoir's flood discharge system, eliminates safety hazards, improves emergency response efficiency, and is easy to implement and promote on-site, achieving a balance between flood control safety and environmental protection. Therefore, it solves the problems in related technologies where, during continuous or torrential rains and other extreme weather events, rainstorm runoff carrying ash and slag buries low-level drainage holes, causing the drainage system to fail, the reservoir water level to rise rapidly, and there is a lack of systematic and efficient emergency response measures. Furthermore, the ash storage operation is disconnected from flood control requirements, leading to a sharp shortening or even disappearance of the dry beach in front of the dam, posing an emergency risk of ash water overflow and dam collapse.

[0034] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0035] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a flowchart illustrating a flood control emergency response method for a valley-type dry ash storage yard according to an embodiment of this application. Figure 2 This is a schematic diagram of the initial ash accumulation state cross-section of an ash field according to an embodiment of this application; Figure 3 This is a schematic diagram illustrating an emergency reduction of the reservoir tail water level according to an embodiment of this application; Figure 4 This is a schematic diagram of dredging around an upstream drainage shaft according to an embodiment of this application; Figure 5 This is a schematic diagram of gray area partitioning and reshaping of a storage area according to an embodiment of this application; Figure 6 This is a structural schematic diagram of a flood control emergency response device for a valley-type dry ash storage yard according to an embodiment of this application; Figure 7 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of this application.

[0036] Figure label: 10-Valley-type dry ash storage yard flood control emergency response device; 100-Drainage module, 200-Cleanup module, 300-Construction module; 701-Memory, 702-Processor, 703-Communication interface. Detailed Implementation

[0037] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0038] The following description, with reference to the accompanying drawings, describes a flood control emergency response method, apparatus, and electronic equipment for a valley-type dry ash storage yard according to embodiments of this application. In response to the aforementioned issues mentioned in the background section, during extreme weather events such as continuous or torrential rains, rainwater runoff carrying ash and slag can bury low-level drainage holes, causing the drainage system to fail, the water level in the reservoir to rise rapidly, and the lack of systematic and efficient emergency response measures. Furthermore, the ash storage operation is disconnected from flood control requirements, leading to a sharp shortening or even disappearance of the dry beach in front of the dam, posing an emergency risk of ash water overflow and dam collapse. This application provides a flood control emergency response method for a valley-type dry ash storage yard. In this method, the water level at the tail end of the reservoir is first lowered to create a working surface. Then, the ash and slag deposited around the upstream drainage shafts are cleared. The entire reservoir area of ​​the valley-type dry ash storage yard is systematically reshaped to construct a drainage system with drainage shafts as the control low points within the site, possessing stable flood discharge capacity. This allows for the rapid and effective clearing of buried drainage shafts, quickly restoring drainage capacity, reshaping the reservoir's flood discharge system, eliminating safety hazards, improving emergency response efficiency, and facilitating on-site implementation and promotion. This achieves a balance between flood control safety and environmental protection. This solves the problems in related technologies, such as the failure of drainage systems due to rainstorm runoff carrying ash and slag burying low-level drainage holes during continuous or torrential rains and other extreme weather, the rapid rise of water levels in reservoirs, the lack of systematic and efficient emergency response measures, the disconnect between ash piling operations and flood control requirements, the sharp shortening or even disappearance of the dry beach in front of the dam, and the emergency situation of ash water overflow and dam collapse risks.

[0039] Specifically, Figure 1 This is a flowchart illustrating a flood control emergency response method for a valley-type dry ash storage yard provided in an embodiment of this application.

[0040] like Figure 1 As shown, the flood control emergency response method for this valley-type dry ash storage site includes the following steps: In step S101, in response to the water level of the tail dammed lake of the downstream drainage shaft of the valley-type dry ash storage site meeting the preset emergency conditions, emergency drainage measures are initiated to excavate the flood passage until the flood passage is opened, the drainage function of the downstream drainage shaft is determined to be restored, and a flood control operation face is constructed.

[0041] It is understood that, in the embodiments of this application, the valley-type dry ash storage site refers to a storage area for dry ash formed by constructing a dam using valley terrain. Preset emergency conditions can be understood as pre-set water level thresholds or rates of rise indicating that the danger has developed to the point where immediate intervention is necessary. For example, a preset emergency condition could be when the water level of the tail-end landslide dam exceeds the design warning level by 0.5m and rises by more than 0.1m per hour, or when the safety control line for the length of the dry beach in front of the dam is submerged. Preset emergency conditions can be set by those skilled in the art according to the actual situation, and no specific restrictions are imposed here.

[0042] The initial ash storage cross-section of a valley-type dry ash disposal site is shown below. Figure 2 As shown, the drainage shafts are vertical structures located within the ash disposal area, used to drain rainwater from the storage area. The shaft walls have layered drainage holes that connect to horizontal drainage pipes at the bottom of the storage area. These horizontal drainage pipes are buried at the bottom of the ash disposal area, connecting to the drainage shafts and channeling water outside the storage area. The tail-end landslide dammed lake refers to a lake formed within the ash disposal area due to the failure of the drainage system and changes in the ash accumulation pattern, leading to the accumulation of rainwater.

[0043] In actual implementation, the embodiments of this application can first lower the water level at the tail end of the reservoir to create a working surface. Emergency lowering of the water level at the tail end of the reservoir is a prerequisite for the entire emergency response; only by lowering the water level of the landslide dam at the tail end can the area surrounding the downstream shaft be exposed, opening a passage for all subsequent mechanical operations.

[0044] Specifically, when it is discovered that a landslide dam has formed at the rear of a drainage shaft located downstream of the ash storage area (i.e., the downstream drainage shaft) due to ash accumulation, and the water level continues to rise, and the water level of the downstream landslide dam meets the preset emergency conditions, making it impossible for mechanical operations to enter the area surrounding the shaft due to water accumulation or ash saturation, emergency drainage measures are immediately initiated. Non-contact drainage methods are prioritized to lower the water level. Mechanical excavation is only carried out after the work area is safe. Once the flood passage is cleared, it is determined that the drainage function of the downstream drainage shaft has been restored, and a flood control work surface is constructed to allow construction machinery to enter.

[0045] This application embodiment can quickly control the rising trend of the tail-end landslide dammed lake water level and open up the flood passage when the water level reaches the dangerous threshold. It can quickly alleviate the overall flood control pressure of the reservoir area and avoid major safety accidents such as dam overtopping and collapse caused by the continuous rise of water level. At the same time, it can construct a flood control operation surface and provide a safe and stable construction foundation for subsequent upstream shaft dredging, gray surface reshaping and other operations in the entire reservoir area.

[0046] In step S102, a combination of hydraulic flushing and slurry pumping is used to clean the ash deposits around the upstream drainage shaft of the valley-type dry ash storage site until the ash surface height around the upstream drainage shaft drops to the first preset elevation, at which point it is determined that the drainage function of the upstream drainage shaft has been restored.

[0047] It is understood that the combined process of hydraulic flushing and slurry pumping in this embodiment can be understood as a joint operation that utilizes high-pressure water flow to impact and crush deposited ash and slag, mixes it with water to form a flowable slurry, and then pumps it to a designated area using a slurry pump. The first preset elevation can be a target ash surface height set to ensure that the buried drainage holes are completely exposed and can receive water normally. For example, it can be set to be 0.5 meters lower than the elevation of the lowest drainage hole in the shaft to ensure that there is no ash and slag accumulation above the drainage holes and that water intake is unobstructed. The first preset elevation can be set by those skilled in the art according to the actual situation, and no specific limitation is made here. A slurry pump refers to a centrifugal pump specifically used to transport mixed liquids (slurry) containing solid particles (such as silt and ash).

[0048] In actual implementation, this application embodiment can target the drainage shaft located upstream of the ash storage area (i.e., the upstream drainage shaft). Due to the high water content and poor bearing capacity of the surrounding area, mechanical dredging cannot be carried out directly. Instead, a combination of hydraulic flushing and slurry pumping is used for cleaning. Specifically, high-pressure water flow is used to impact the deposited ash and slag, breaking it up and mixing it with water to form a flowable slurry. This slurry is then pumped to a designated area by a slurry pump. At the same time, the change in ash surface height is monitored in real time. When the ash surface height drops to the first preset elevation (e.g., 0.5 meters below the drainage hole elevation), the flushing operation is stopped. At this time, all drainage holes are exposed, and the drainage function is restored.

[0049] The embodiments of this application can use a combination of hydraulic flushing and slurry pumping to clean the surrounding deposited ash and slag of the upstream drainage shaft of the valley-type dry ash storage yard, thereby achieving continuous and in-depth cleaning of the deposited ash and slag, thoroughly unblocking the buried drainage holes, and fully restoring the designed drainage capacity of the upstream drainage shaft, laying the foundation for the subsequent reshaping of the ash surface morphology of the entire storage area.

[0050] In step S103, after the drainage functions of both the downstream and upstream drainage shafts are restored, the ash surface morphology of the entire reservoir area of ​​the valley-type dry ash storage yard is reshaped based on the flood control operation surface, so as to construct a flood discharge and drainage system with the drainage shafts as the low control points within the site, and to use the flood discharge and drainage system for flood control emergency response of the valley-type dry ash storage yard.

[0051] It is understood that the gray surface morphology reshaping in this application embodiment can be understood as the engineering operation of modifying the existing unreasonable gray surface topography of the reservoir area to meet the requirements of flood control and drainage. Taking the drainage shaft as the control low point in the site can be understood as taking the location of each drainage shaft as the lowest point of elevation in the entire reservoir area or each zone, and all gray surface slopes are inclined towards the shaft to ensure that the runoff can flow into the shaft without obstruction. The flood discharge and drainage system is an organized drainage network composed of the reshaped flood discharge slope, restored drainage shafts, and drainage pipes.

[0052] For example, in this application embodiment, a scheme for reshaping the ash surface morphology of the entire reservoir area can be formulated by combining the distribution location and design drainage capacity of the drainage shafts. Based on the constructed flood control operation surface, bulldozers, road rollers and other mechanical equipment are used to carry out operations in sections. Through measures such as taking high ground to fill low ground, layered compaction and slope protection, the ash surface topography is gradually modified to form flood discharge slopes that slope towards the drainage shafts in each area. Finally, a flood discharge and drainage system with the drainage shafts as the control low point in the site is constructed to use the flood discharge and drainage system for flood control emergency response of the valley-type dry ash storage site.

[0053] This application embodiment can systematically reshape the ash surface morphology of the entire reservoir area after the vertical shaft drainage function is restored, so as to construct a flood discharge and drainage system with the drainage vertical shaft as the control low point in the field. At the same time, the reshaped ash surface morphology is more stable, thereby ensuring that the rainwater and ash leachate collected in the reservoir area can be discharged in a timely manner, reducing the probability of ash slag being washed by runoff to the area around the vertical shaft from the source, and significantly improving the overall flood control capability and operational stability of the valley-type dry ash storage yard.

[0054] Optionally, in one embodiment of this application, emergency drainage measures are initiated to excavate a flood passage, including: using a siphon or submersible pump to perform non-mechanical excavation in the area between the tail dammed lake and the downstream drainage shaft until the water level of the tail dammed lake drops to a second preset elevation; after the water level of the tail dammed lake drops to the second preset elevation, an excavator is used to excavate a drainage ditch from the tail dammed lake toward the downstream drainage shaft to excavate a flood passage.

[0055] It is understood that the second preset elevation in this application embodiment can be an elevation for safe mechanical operations. It can be determined based on the physical and mechanical properties of the ash body on site, such as by sampling and testing the relationship between its moisture content and bearing capacity. It can be set as the elevation where the ash surface is completely exposed after the water is drained, or where a very thin water layer remains but the bottom ash body can already bear the weight. The second preset elevation can be set by those skilled in the art according to the actual situation, and no specific restrictions are made here. Non-mechanical excavation can be understood as not relying on large machinery such as excavators and bulldozers to enter soft or waterlogged areas, but instead using the siphon principle or fluid transportation equipment such as submersible pumps to transfer water and lower the water level, thereby creating conditions for the entry of machinery.

[0056] In practical implementation, this embodiment of the application can first lower the water level of the landslide dammed lake in the area between the landslide dammed lake and the downstream shaft using non-mechanical excavation methods (such as siphon pipes, submersible pumps, etc.). After the water level drops to the second preset elevation, mechanical operations can then be safely carried out, using excavators and other equipment to excavate a drainage ditch from the landslide dammed lake towards the downstream shaft, thus opening up a flood passage. Figure 3 As shown.

[0057] In some embodiments, self-priming centrifugal pumps, diesel-driven high-flow drainage pumps, or inverted siphons arranged according to terrain elevation differences can be used for drainage to lower the water level at the tail end of the reservoir. When ordinary excavators cannot access the area, long-arm excavators can be used to excavate from a safe area at a distance, or hydraulic flushing equipment can be used to flush out a drainage ditch with high-pressure water jets. Without introducing large machinery into soft or waterlogged areas, the water level of the landslide dammed lake can be rapidly lowered, and a flood discharge channel with stable flow capacity can be opened from the landslide dammed lake to the downstream shaft.

[0058] This application embodiment can quickly lower the water level of the tail end of the landslide dam without introducing large machinery into soft or waterlogged areas. This avoids problems such as equipment overturning and safety risks to workers that may result from direct mechanical excavation under high water conditions. It also opens up a flood passage with stable flow capacity from the landslide dam to the downstream shaft, creating stable construction conditions for subsequent mechanical operations.

[0059] Optionally, in one embodiment of this application, a combined process of hydraulic flushing and slurry pumping is used to clean the surrounding sediment deposits of the upstream drainage shaft of a valley-type dry ash storage yard until the height of the surrounding sediment surface of the upstream drainage shaft drops to a first preset elevation. This includes: using the tail-end dammed lake to flush the sediment deposits around the upstream drainage shaft and obtaining slurry made from the surrounding sediment deposits; pumping the slurry to a preset sedimentation area and performing sedimentation and solidification treatment on the preset sedimentation area until the height of the surrounding sediment surface of the upstream drainage shaft drops to the first preset elevation.

[0060] It is understood that the preset sedimentation area in this application embodiment can be a sedimentation tank designated outside the reservoir area or a low-lying area at the tail of the reservoir. The preset sedimentation area can be set by those skilled in the art according to the actual situation, and no specific restrictions are made here.

[0061] In actual implementation, this embodiment of the application can deploy submersible pumps to extract clean water from the landslide dammed lake at the reservoir tail. The extracted clean water is then used with high-pressure water jets to directionally flush away the high-moisture-content ash deposits around the upstream shaft and the accumulated ash on the surrounding high slopes, reducing the slope and forming a flowable slurry. Slurry pumps are set up near the flushing point to promptly pump the slurry to a designated sedimentation tank outside the reservoir area or a low-lying area at the reservoir tail for sedimentation and solidification. The "flushing-pumping" operation is continuously carried out, gradually reducing the ash surface height around the upstream shaft until the buried drainage holes are completely exposed, restoring normal drainage function. Figure 4 As shown.

[0062] For example, in addition to extracting clean water from the reservoir tail dammed lake, this application embodiment can also utilize water from mountain ponds outside the reservoir area, water supplied by fire water tankers, or water extracted from downstream collection pools after preliminary sedimentation for flushing; in addition to hydraulic flushing + slurry pump, if site conditions permit, a long-arm excavator + dump truck can also be used to relay the material from a hardened road surface at a distance or lay temporary steel roadbed boxes to improve the bearing capacity of the ash surface before allowing small machinery to enter the operation to overcome the soft soil problem and remove the material blocking the vertical shaft.

[0063] This application embodiment solves the problem of mechanical dredging on ash surfaces with high moisture content by using a combination of hydraulic flushing and slurry pumping. It can quickly and effectively dredge buried drainage shafts, restore the core drainage function, and achieve efficient cleaning and resource-based disposal of deposited ash, thereby improving the efficiency and safety of cleaning deposited ash around upstream drainage shafts.

[0064] Optionally, in one embodiment of this application, based on the flood control operation surface, the entire reservoir area of ​​the valley-type dry ash storage yard is reshaped to construct a flood discharge and drainage system with drainage shafts as the control low point within the site. This includes: dividing the reservoir area into different regions according to the location of the drainage shafts, reshaping the ash surface in each region to construct a flood discharge slope that meets a preset inclination angle in each region; and constructing a flood discharge and drainage system with drainage shafts as the control low point within the site based on the flood discharge slope and preset elevation control conditions.

[0065] It is understood that the preset tilt angle in the embodiments of this application can be a gentle slope (slope not greater than 1:20) tilting towards the drainage shaft. The preset tilt angle can be set by those skilled in the art according to the actual situation, and no specific restrictions are imposed here.

[0066] In actual implementation, this embodiment of the application can systematically reshape the ash surface morphology of the entire reservoir area after the drainage functions of the upstream and downstream shafts have been basically restored, in order to completely eliminate safety hazards. The scattered ash and slag body is reshaped by taking high-level materials and layered compaction to form a gentle slope (slope not exceeding 1:20) sloping towards the drainage shafts. The reshaped ash surface of the reservoir area should form a flood discharge and drainage system with the drainage shafts as the control low point, ensuring that the preset elevation control conditions are met. Subsequent ash removal operations should be carried out layer by layer from the tail of the reservoir towards the dam, with a single layer thickness not exceeding 1.5m, to fundamentally restore and maintain the flood discharge capacity of the ash field. Figure 5 As shown.

[0067] Among them, the soil extraction methods for gray surface reshaping can use conventional earthmoving machinery such as excavators and bulldozers, or hydraulic filling can be used to transport the ash and slag from high places to low-lying areas for deposition and filling, so as to achieve low-cost, long-distance transfer of materials.

[0068] The embodiments of this application can carry out ash surface morphology reshaping in a zoned operation manner and construct a flood discharge and drainage system with drainage shafts as the control low points in the site. This fundamentally solves the problems of unreasonable ash storage morphology and insufficient flood control capacity in the reservoir area, constructs a long-term flood discharge system, reduces the risk of dam collapse and ash water overflow, and improves the overall flood control capacity and operational stability of the valley-type dry ash storage site.

[0069] Optionally, in one embodiment of this application, the preset elevation control condition is that the elevation of the gray surface within a preset range around the drainage shaft is lower than the elevation of the bottom drainage hole.

[0070] It is understood that the preset range in the embodiments of this application can be understood as an annular area set to ensure that the water inlet of the drainage shaft is not buried again, and the area around the shaft must maintain a low ash surface elevation. Its radius can be determined according to the natural angle of repose of the ash body and the influence range of the ash accumulation operation. For example, it can be 15 meters. The preset range can be set by those skilled in the art according to the actual situation, and no specific restrictions are made here.

[0071] In actual implementation, the embodiments of this application can preset the elevation control condition to ensure that the height of the gray surface within a certain range around the shaft is at least 0.5m lower than the bottom of the lowest row of drainage holes in the shaft.

[0072] The embodiments of this application can ensure that the elevation of the ash surface within a preset range around the drainage shaft is always lower than the elevation of the bottom drainage hole, fundamentally preventing the problem of ash and slag deposition burying the drainage hole, ensuring that the drainage shaft can perform its drainage function normally under various working conditions, and improving the flood control emergency response capability and safety guarantee level of the valley-type dry ash storage yard under extreme weather conditions.

[0073] Optionally, in one embodiment of this application, the reservoir area is divided into different regions according to the location of the drainage shaft, and gray surface morphology is reshaped in each region to construct a flood discharge slope that meets a preset tilt angle in each region. This includes: reshaping the gray surface morphology in each region to obtain a first slope and a second slope, and covering the first slope; and performing layered compaction on the second slope and covering it with slope protection material to construct a flood discharge slope based on the first slope and the second slope.

[0074] It is understood that in the embodiments of this application, the first slope refers to the temporary slope formed after reshaping, which is used for short-term flood discharge needs during emergency response, and the second slope refers to the long-term slope, which needs to meet the stability requirements for long-term operation, and its structural strength and erosion resistance requirements are high.

[0075] In actual implementation, the embodiments of this application can cover the temporary slope (i.e., the first slope) formed after reshaping with geotextile to prevent rainwater from eroding and forming gullies again; for the long-term slope (i.e., the second slope), it should be compacted in layers and covered with a clay layer or geomembrane to prevent rainwater infiltration, while setting up slope drainage ditches.

[0076] In addition to geomembranes, slope protection materials can also include clay covering. Their common goal is to prevent rainwater from directly eroding the slope surface and improve slope stability. Geotextiles are permeable geosynthetic materials made from synthetic fibers through processes such as needle punching, weaving, or thermal bonding. Composite geomembranes are composite geosynthetic materials made by bonding geomembranes (impermeable layers) to geotextiles on one or both sides through processes such as thermal bonding.

[0077] This application embodiment can cover the first slope formed after reshaping to prevent rainwater from eroding and forming gullies again, and perform layered compaction and cover the second slope with slope protection material to improve the density of the slope and prevent rainwater infiltration, thereby ensuring the flood discharge function and stability of the slope, effectively preventing problems such as ash and slag slippage and blockage of the drainage system caused by slope instability, and further improving the safe operation level of the valley-type dry ash storage yard.

[0078] Optionally, in one embodiment of this application, the external interception and drainage system is improved to achieve separation of rainwater and sewage. Specifically, a comprehensive cleaning of the sediment in the external collection pond (sedimentation pond) is immediately organized to restore its buffering and sedimentation capacity, prevent the overflow of ash water and avoid environmental accidents, and to investigate and repair the flood interception ditches on the surrounding mountains to ensure their integrity and unobstructed flow, so as to divert the rainwater collected on the hillside to the downstream of the reservoir area, thereby minimizing the entry of external rainwater into the ash surface of the reservoir area from the source and reducing the flood control pressure inside the ash field.

[0079] This application's embodiments follow a "lowering first, clearing later; urgent first, less urgent later" approach, first opening the work access road, then restoring key nodes, and finally carrying out overall remediation. The steps are clear and the logic is rigorous, avoiding blind construction and improving emergency response efficiency. Throughout the emergency response process, preventing the overflow of ash water is always the bottom line. Through measures such as cleaning the collection pool and improving the flood interception system, a balance between flood control safety and environmental protection is achieved. The various measures in this application's embodiments, such as siphon drainage, hydraulic flushing, layered ash removal, and slope protection, are all based on mature engineering technologies, making them easy to implement and promote on-site.

[0080] In some embodiments, if the reservoir tail does not have the conditions for rapidly lowering the water level, a "drainage and dike construction" approach can be adopted, starting from the upstream shaft. This involves constructing a temporary dike around the upstream shaft using sandbags and baffles, pumping out the water within the dike, and then dredging to restore its drainage capacity. The water level in the reservoir area is then gradually lowered using drainage from the upstream shaft, before proceeding towards the downstream shaft. This approach is suitable for situations where the reservoir tail water level cannot be addressed immediately.

[0081] In some embodiments, if the upstream shaft is difficult to clear in the short term, a simple temporary drainage system can be constructed near the upstream shaft using the terrain and existing materials. For example, a high-powered floating pump can be installed in a low-lying area in front of the dam to directly pump the collected rainwater out of the reservoir. At the same time, the area around the downstream shaft can be quickly cleared to open the drainage channel. After the overall water level in the reservoir drops, the upstream shaft can then be cleared. The core of this approach is to ensure overall safety first, and then address localized issues.

[0082] The flood control emergency response method for valley-type dry ash storage yards proposed in this application involves first lowering the tailwater level to create a working surface, then clearing the deposited ash and slag around the upstream drainage wells. This systematically reshapes the ash surface morphology of the entire valley-type dry ash storage yard, constructing a drainage system with drainage wells as the lowest control points within the yard and stable flood discharge capacity. This allows for the rapid and effective clearing of buried drainage wells, quickly restoring drainage capacity, reshaping the flood discharge system of the storage area, eliminating safety hazards, improving emergency response efficiency, and facilitating on-site implementation and promotion. It achieves a balance between flood control safety and environmental protection. This solves the problem in related technologies where, during continuous or torrential rains and other extreme weather events, rainwater runoff carrying ash and slag buries low-level drainage holes, causing the drainage system to fail, the water level in the storage yard to rise rapidly, and the lack of systematic and efficient emergency response measures. Furthermore, the disconnect between ash storage operations and flood control requirements leads to a sharp shortening or even disappearance of the dry beach in front of the dam, posing a risk of ash water overflow and dam collapse.

[0083] Next, referring to the accompanying drawings, we describe the flood control emergency response device for a valley-type dry ash storage yard according to an embodiment of this application.

[0084] Figure 6 This is a structural schematic diagram of the flood control emergency response device for a valley-type dry ash storage yard according to an embodiment of this application.

[0085] like Figure 6 As shown, the flood control emergency response device 10 for the valley-type dry ash storage site includes: a drainage module 100, a cleaning module 200, and a construction module 300.

[0086] Among them, the drainage module 100 is used to respond to the water level of the tail dammed lake of the downstream drainage shaft of the valley-type dry ash storage site meeting the preset emergency conditions, to initiate emergency drainage measures to excavate the flood passage until the flood passage is opened, determine that the drainage function of the downstream drainage shaft has been restored, and construct the flood control operation face.

[0087] The cleaning module 200 is used to clean the surrounding sediment deposits of the upstream drainage shaft of the valley-type dry ash storage site using a combination of hydraulic flushing and slurry pumping processes until the height of the surrounding ash surface of the upstream drainage shaft drops to the first preset elevation, at which point it is determined that the drainage function of the upstream drainage shaft has been restored.

[0088] Module 300 is used to reshape the ash surface morphology of the entire reservoir area of ​​the valley-type dry ash storage yard based on the flood control operation surface after the drainage functions of the downstream and upstream drainage shafts have been restored. This is to construct a flood discharge and drainage system with the drainage shafts as the low control points within the site, and to utilize the flood discharge and drainage system for flood control emergency response of the valley-type dry ash storage yard.

[0089] Optionally, in one embodiment of this application, the drainage module 100 includes: a first drainage unit and a second drainage unit.

[0090] The first drainage unit is used to excavate non-mechanically in the area between the tail dammed lake and the downstream drainage shaft using a siphon or submersible pump until the water level of the tail dammed lake drops to the second preset elevation.

[0091] The second drainage unit is used to excavate drainage ditches from the tail dammed lake to the downstream drainage shaft after the water level of the tail dammed lake drops to the second preset elevation, so as to excavate a flood passage.

[0092] Optionally, in one embodiment of this application, the cleaning module 200 includes a flushing unit and a processing unit.

[0093] The flushing unit is used to flush the surrounding sediment of the upstream drainage shaft using the tail dammed lake, and to obtain slurry made from the surrounding sediment.

[0094] The processing unit is used to pump the mortar to a preset sedimentation area and perform sedimentation and solidification treatment on the preset sedimentation area until the height of the mortar surface around the upstream drainage shaft drops to the first preset elevation.

[0095] Optionally, in one embodiment of this application, the building module 300 includes: a first building unit and a second building unit.

[0096] The first building unit is used to divide the reservoir area into different regions according to the location of the drainage shaft, and to reshape the gray surface morphology in each region in order to build a flood discharge slope that meets the preset tilt angle in each region.

[0097] The second building unit is used to construct a flood discharge and drainage system with the drainage shaft as the lowest control point on site, based on the flood discharge slope and preset elevation control conditions.

[0098] Optionally, in one embodiment of this application, the first building unit includes: a covering subunit and a building subunit.

[0099] The covering sub-unit is used to reshape the gray surface morphology in each region to obtain the first slope and the second slope, and to cover the first slope.

[0100] Sub-units are constructed to perform layered compaction and cover the second slope with slope protection material, thereby constructing a flood discharge slope based on the first and second slopes.

[0101] Optionally, in one embodiment of this application, the preset elevation control condition is that the elevation of the gray surface within a preset range around the drainage shaft is lower than the elevation of the bottom drainage hole.

[0102] It should be noted that the explanation of the above-mentioned embodiment of the flood control emergency response method for valley-type dry ash storage sites also applies to the flood control emergency response device for valley-type dry ash storage sites in this embodiment, and will not be repeated here.

[0103] The flood control emergency response device for valley-type dry ash storage yards proposed in this application can first lower the water level at the tail end of the reservoir to create a working surface, then clean up the deposited ash and slag around the upstream drainage shafts, systematically reshaping the ash surface morphology of the entire reservoir area of ​​the valley-type dry ash storage yard to construct a drainage system with drainage shafts as the control low points within the site and stable flood discharge capacity. This allows for the rapid and effective unblocking of buried drainage shafts, quickly restoring drainage capacity, reshaping the reservoir area's flood discharge system, eliminating safety hazards, improving emergency response efficiency, and facilitating on-site implementation and promotion, thus achieving a balance between flood control safety and environmental protection. This solves the problem in related technologies where, during continuous or torrential rains and other extreme weather events, rainwater runoff carrying ash and slag buries low-level drainage holes, causing the drainage system to fail, the water level in the reservoir to rise rapidly, and the lack of systematic and efficient emergency response measures. Furthermore, the disconnect between ash storage operations and flood control requirements leads to a sharp shortening or even disappearance of the dry beach in front of the dam, posing a risk of ash water overflow and dam collapse.

[0104] Figure 7 A schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device may include: The memory 701, the processor 702, and the computer program stored on the memory 701 and executable on the processor 702.

[0105] When the processor 702 executes the program, it implements the flood control emergency response method for valley-type dry ash storage yards provided in the above embodiments.

[0106] Furthermore, electronic devices also include: Communication interface 703 is used for communication between memory 701 and processor 702.

[0107] The memory 701 is used to store computer programs that can run on the processor 702.

[0108] The memory 701 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0109] If the memory 701, processor 702, and communication interface 703 are implemented independently, then the communication interface 703, memory 701, and processor 702 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized into address buses, data buses, control buses, etc. For ease of representation, Figure 7 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0110] Optionally, in a specific implementation, if the memory 701, processor 702, and communication interface 703 are integrated on a single chip, then the memory 701, processor 702, and communication interface 703 can communicate with each other through an internal interface.

[0111] The processor 702 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0112] This application also provides a non-volatile computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described flood control emergency response method for valley-type dry ash storage sites.

[0113] This application also provides a computer program product storing a computer program that, when executed by a processor, implements the above-described flood control emergency response method for valley-type dry ash storage sites.

[0114] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0115] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0116] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0117] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0118] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented using any one or more of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0119] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0120] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0121] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A flood control emergency response method for a valley-type dry ash storage yard, characterized in that, Includes the following steps: In response to the water level of the landslide dammed lake at the tail end of the downstream drainage shaft of the valley-type dry ash storage site meeting the preset emergency conditions, emergency drainage measures are initiated to excavate a flood passage until the flood passage is opened. Once the drainage function of the downstream drainage shaft is determined to be restored, a flood control work surface is constructed. The sediment deposited ash around the upstream drainage shaft of the valley-type dry ash storage yard is cleaned by a combination of hydraulic flushing and slurry pump discharge until the ash surface height around the upstream drainage shaft drops to a first preset elevation, at which point the drainage function of the upstream drainage shaft is determined to have been restored. After the drainage functions of the downstream and upstream drainage shafts are restored, the ash surface morphology of the entire reservoir area of ​​the valley-type dry ash storage yard is reshaped based on the flood control operation surface to construct a flood discharge and drainage system with the drainage shafts as the low control points within the site, so as to use the flood discharge and drainage system for flood control emergency response of the valley-type dry ash storage yard.

2. The method according to claim 1, characterized in that, The initiation of emergency drainage measures to excavate flood channels includes: In the area between the tail-end landslide dammed lake and the downstream drainage shaft, non-mechanical excavation is carried out using siphon pipes or submersible pumps until the water level of the tail-end landslide dammed lake drops to the second preset elevation. After the water level of the tail-end landslide dammed lake drops to the second preset elevation, an excavator is used to excavate a drainage ditch from the tail-end landslide dammed lake toward the downstream drainage shaft in order to excavate the flood passage.

3. The method according to claim 1, characterized in that, The process of cleaning the surrounding ash deposits of the upstream drainage shaft of the valley-type dry ash storage yard using a combination of hydraulic flushing and slurry pumping until the ash surface height around the upstream drainage shaft drops to a first preset elevation includes: The tail-end dammed lake is used to flush the surrounding sediment deposits of the upstream drainage shaft, and slurry made from the surrounding sediment deposits is obtained. The mortar is pumped to a preset sedimentation area and the preset sedimentation area is subjected to sedimentation and solidification treatment until the height of the mortar surface around the upstream drainage shaft drops to the first preset elevation.

4. The method according to claim 1, characterized in that, Based on the flood control work surface, the entire reservoir area of ​​the valley-type dry ash storage yard is reshaped to construct a flood discharge and drainage system with drainage shafts as the lowest control points within the site, including: The reservoir area is divided into different regions according to the location of the drainage shafts. The gray surface morphology is reshaped in each region to construct a flood discharge slope that meets the preset tilt angle in each region. Based on the aforementioned flood discharge slope and preset elevation control conditions, a flood discharge and drainage system is constructed with the drainage shaft as the lowest control point within the site.

5. The method according to claim 4, characterized in that, The process of dividing the reservoir area into different zones based on the location of drainage shafts, and reshaping the gray surface morphology within each zone to construct a flood discharge slope that meets a preset inclination angle within each zone includes: In each region, gray surface morphology is reshaped to obtain the first slope and the second slope, and the first slope is covered. The second slope is compacted in layers and covered with slope protection material to construct the flood discharge slope based on the first slope and the second slope.

6. The method according to claim 4, characterized in that, The preset elevation control condition is that the elevation of the gray surface within a preset range around the drainage shaft is lower than the elevation of the lowest drainage hole.

7. A flood control emergency response device for a valley-type dry ash storage yard, characterized in that, include: The drainage module is used to initiate emergency drainage measures to excavate a flood passage when the water level of the tail dammed lake of the downstream drainage shaft of the valley-type dry ash storage site meets the preset emergency conditions, until the flood passage is opened, determine that the drainage function of the downstream drainage shaft has been restored, and construct a flood control operation surface. The cleaning module is used to clean the surrounding deposited ash and slag of the upstream drainage shaft of the valley-type dry ash storage yard using a combination of hydraulic flushing and slurry pump discharge process, until the height of the ash surface around the upstream drainage shaft drops to a first preset elevation, and the drainage function of the upstream drainage shaft is determined to be restored. The construction module is used to reshape the ash surface morphology of the entire reservoir area of ​​the valley-type dry ash storage yard based on the flood control operation surface after the drainage functions of the downstream drainage shaft and the upstream drainage shaft are restored, so as to construct a flood discharge and drainage system with the drainage shaft as the low point of the site control, so as to use the flood discharge and drainage system for flood control emergency response of the valley-type dry ash storage yard.

8. An electronic device, characterized in that, include: The device includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the program to implement the flood control emergency response method for valley-type dry ash storage sites as described in any one of claims 1-6.

9. A non-volatile computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the flood control emergency response method for valley-type dry ash storage sites as described in any one of claims 1-6.

10. A computer program product, comprising a computer program, characterized in that, The computer program is executed to implement the flood control emergency response method for valley-type dry ash storage sites as described in any one of claims 1-6.

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