Regional geological safety risk assessment method, device, equipment and storage medium

Abstract

The present invention relates to the technical field of geological safety risk assessment, and discloses a regional geological safety risk assessment method, device, equipment and storage medium. The method extracts the river trajectories of several urban rivers flowing through the target area from the urban river distribution information of the target area, generates the runoff parameter information of each river flowing through the associated area based on the river trajectory and rainfall drainage information, generates the optimal control strategy of the river water level in the target area based on the runoff parameter information and the river water level control constraint condition of the target area, considers the water level regulation and water storage capacity of each river flowing through the associated area, calculates the geological risk assessment quantitative value of each river trajectory point, and generates the geological safety risk assessment result of the target area for each river trajectory point, so as to improve the accuracy, precision and scene adaptability of the geological safety risk assessment along the urban river in the soil embankment scene, and provide theoretical support for the implementation of urban geological safety protection measures.

Description

Technical Field

[0001] The present invention relates to the technical field of geological safety risk assessment, and in particular to a regional geological safety risk assessment method, device, equipment and storage medium. Background Art

[0002] Regional geological safety risk assessment refers to the process of predicting, analyzing and evaluating the geological disasters that a region may suffer. Its significance and purpose is to discover geological disaster risks in advance, reduce the losses caused by disasters, provide a basis for governments and enterprises to formulate scientific and reasonable plans and decisions, identify, evaluate and monitor geological disaster risks, and formulate risk management strategies. At present, geological safety risk assessment schemes for urban river banks are mostly applied to cement embankments. Since cement embankments are relatively hard and impermeable, when conducting geological safety risk assessments, the scouring damage of the river bottom soil and the structural deformation of the embankment affected by buoyancy are usually considered.

[0003] However, in some cases, there is still a need for geological safety risk assessment along urban rivers in soil embankment scenarios (such as ecological protection areas of urban rivers, naturally formed soil embankments in mountainous cities, or riverside areas in towns in the early stages of urbanization where cement embankments have not yet been built). In this case, the geological safety risk of landslide type of river soil embankments is mainly considered, and the existing safety risk assessment methods applied to cement embankments are not applicable. At the same time, traditional river area risk assessment has two limitations: First, the geological safety risk assessment is not very sophisticated. At present, river area risk assessment mainly considers river parameters such as river water level, river water speed and river flow. When performing risk assessment, it is only judged whether the parameters are higher than the set value, without considering the influence of geological parameters, and the set value is generally set too high. Usually, the risk assessment red line is triggered only when very significant flood-level river parameters appear, and the geological safety risks caused by small changes in river parameters cannot be accurately perceived; second, the geological safety risk assessment scenario adaptability is poor. At present, river area risk assessment has not been applied to cities, and lacks consideration of factors such as urban river regulation and river water level requirements. River regulation (such as the use of upstream water storage projects) can adjust the impact of river parameters on urban areas when conducting geological safety risk assessments, while river water level requirements (such as the impact of river transportation and ecological environment on the river water level range) impose certain restrictions on river regulation, which increases the difficulty of geological safety risk assessment in different scenarios. ‌

[0004] Therefore, how to improve the accuracy, precision and scenario adaptability of geological safety risk assessment along urban rivers in soil embankment scenarios is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The present invention provides a regional geological safety risk assessment method, device, equipment and storage medium, aiming to solve at least one of the above technical problems.

[0006] To achieve the above object, the present invention provides a regional geological safety risk assessment method, comprising the following steps:

[0007] Acquire urban river distribution information of a target area, and extract river trajectories of a plurality of urban rivers flowing through the target area from the urban river distribution information;

[0008] Based on the river trajectory, a number of associated areas of each urban river are matched, and rainfall drainage information of a number of associated areas is obtained. According to the rainfall drainage information, runoff parameter information of each associated area is generated; wherein the runoff parameter information includes the relationship between the change of the drainage flow value of each river flowing through the associated area to the next area along the river trajectory and time;

[0009] Based on the runoff parameter information of each river flowing through the associated area and the river water level control constraints of the target area, the water level regulation and storage capacity of each river flowing through the associated area is considered, an optimal control strategy for the river water level of the target area is generated, and the geological risk assessment quantitative values ​​of several river trajectory points in the target area under the optimal control strategy for the river water level are calculated;

[0010] The geological risk assessment quantification values ​​of several river trajectory points in the target area are used to generate geological safety risk assessment results of several river trajectory points of each urban river in the target area.

[0011] Optionally, the step of obtaining urban river distribution information of the target area and extracting river trajectories of a plurality of urban rivers flowing through the target area from the urban river distribution information specifically includes:

[0012] Acquire a remote sensing image of a target area, input the remote sensing image into a pre-trained river recognition model, extract a first river track of each urban river in the target area, and mark the first river track on an electronic map of the target area;

[0013] Based on the electronic map with the first river track, a second river track manually marked on the electronic map is obtained, and duplicate track points in each track point of the first river track and the second river track are eliminated according to the principle of merging the error distance range;

[0014] Based on a number of trajectory points after repeated trajectory points are eliminated, urban river distribution information of river trajectories containing a number of urban rivers in the target area is generated.

[0015] Optionally, based on the river trajectory, the steps of matching a plurality of associated areas through which each city river flows specifically include:

[0016] Calling the river trajectories of several adjacent areas of the target area, and extracting the associated area for each urban river in the target area from the several adjacent areas based on the position matching relationship between each river trajectory point in the target area and the river trajectories of the several adjacent areas;

[0017] Repeatedly calling the adjacent area of ​​the associated area, performing position matching of each river trajectory point in the river trajectory of the associated area and the adjacent area of ​​the associated area, and extracting the adjacent area with a position matching relationship as a new associated area, until there is no river trajectory point with a position matching relationship between the associated area and the adjacent area;

[0018] All associated regions of each urban river are extracted, and an associated region set including all associated regions is used as the associated region flowing through each urban river in the target region.

[0019] Optionally, the step of obtaining rainfall drainage information of a plurality of flows passing through the associated areas and generating runoff parameter information of each flow passing through the associated areas according to the rainfall drainage information specifically includes:

[0020] Accessing a weather database, extracting rainfall forecast data corresponding to each monitoring period before a target period for each flow passing through an associated area stored in the weather database;

[0021] Based on the mapping ratio between rainfall and river drainage flow in the historical rainfall and drainage monitoring data of each associated area, the rainfall forecast data corresponding to each monitoring period is converted into the corresponding river drainage flow value;

[0022] Based on the river drainage flow value of each river flowing through the associated area in each monitoring period and the river water withdrawal application volume of each river flowing through the associated area in each monitoring period, runoff parameter information including the changes in the river drainage flow value of each river flowing through the associated area to the next area along the river trajectory over time is generated.

[0023] Optionally, according to the runoff parameter information of each flow through the associated area and the river water level control constraint conditions of the target area, the water level regulation and water storage capacity of each river flowing through the associated area is considered, and the optimal control strategy steps of the river water level in the target area are generated, specifically including:

[0024] According to the standard river water flow time corresponding to each urban river from each associated area to the target area, the river drainage flow value corresponding to each river flowing through the associated area is superimposed according to the time of flowing through the target area to obtain the river drainage flow prediction value of the target area in the target period, and the river drainage flow prediction value is used as the runoff parameter information of the target area.

[0025] Obtain river water level control constraints in the target area, extract the river water level upper limit and the river water level lower limit in the river water level control constraints, access each water storage project database passing through the associated area, and query the remaining water storage capacity parameters of each water storage project passing through the associated area;

[0026] According to the predicted value of the river drainage flow in the target area during the target period, the upper limit value and the lower limit value of the river water level, and the remaining water storage capacity parameter of each water storage project flowing through the associated area, the difference between the predicted value of the river drainage flow in each control period in the target period and the river water storage flow value in each water storage period corresponding to each control period flowing through the associated area is converted into the actual river water level value of the target area, which is between the upper limit value and the lower limit value of the river water level, as the first constraint condition; the remaining water storage capacity parameter of each water storage project flowing through the associated area after completing the water storage task in the target period is not less than the minimum remaining water storage capacity parameter, as the second constraint condition; the minimum cumulative sum of the fluctuation amplitudes of the actual river water level values ​​in each adjacent control period in the target period is taken as the optimization target, and the water storage control execution action of each water storage project flowing through the associated area is optimized and solved;

[0027] Based on the water storage control execution action of the water storage project, the relationship between the river water level change over time in the target period of the target area is determined, and the optimal control strategy for the river water level in the target area is generated.

[0028] Optionally, the step of calculating the quantitative value of geological risk assessment of a plurality of river trajectory points in the target area under the optimal control strategy for the river water level specifically includes:

[0029] Calling a riverside geological accident database, extracting a historical geological association data set of each riverside geological accident in the riverside geological accident database; wherein the historical geological association data set includes a number of geological parameters of the geological accident location, the closest distance value from the geological accident location to the river, and the water level change characteristics of the river closest to the geological accident location;

[0030] Obtain the river water level change relationship of several river trajectory points in the target area, the geological parameters of each geological risk assessment point within a preset distance range along the river bank of each river trajectory point, and the closest distance value from each geological risk assessment point to the river, and construct an actual geological association data set for each river trajectory point;

[0031] The matching degree of the actual geological association data set of each river trajectory point and several items of data in the historical geological association data set of each riverside geological accident in the riverside geological accident database is calculated, and the value with the highest matching degree among several riverside geological accidents is used as the quantitative value of the geological risk assessment of the corresponding river trajectory point.

[0032] Optionally, the step of using the geological risk assessment quantification values ​​of the several river trajectory points in the target area to generate the geological safety risk assessment results of the several river trajectory points of each urban river in the target area specifically includes:

[0033] Obtaining geological risk assessment quantitative values ​​of a plurality of river trajectory points in the target area, and determining a plurality of high-risk river trajectory points in the target area that meet geological safety high-risk conditions based on the geological risk assessment quantitative values ​​and a preset geological risk assessment quantitative threshold;

[0034] Among them, the high-risk river trajectory points that meet the high-risk geological safety conditions are configured as the first river trajectory points in the target area where the geological risk assessment quantification value is higher than the preset geological risk assessment quantification threshold value by a ratio exceeding the first target ratio and a number of second river trajectory points where the target number of geological risk assessment quantification values ​​are higher than the preset geological risk assessment quantification threshold value appear continuously;

[0035] Determine whether the proportion of high-risk river trajectory points in the target area to all river trajectory points exceeds a second preset proportion. If so, adjust the upper limit of the river water level in the river water level control constraint of the target area according to the preset rules, and return to re-execute the steps of generating the optimal control strategy for the river water level in the target area based on the runoff parameter information of each flow through the associated area and the river water level control constraint of the target area, taking into account the water level regulation and water storage capacity of each river flowing through the associated area;

[0036] The preset rule is configured such that the downward adjustment ratio of the upper limit of the river water level is positively correlated with the difference in the proportion of the quantity exceeding the second preset ratio.

[0037] In addition, in order to achieve the above-mentioned purpose, the present invention also provides a regional geological safety risk assessment device, comprising:

[0038] An acquisition module, used to acquire urban river distribution information of a target area, and extract river tracks of a plurality of urban rivers flowing through the target area from the urban river distribution information;

[0039] A matching module is used to match a number of associated areas of each urban river based on the river trajectory, obtain rainfall and drainage information of the associated areas, and generate runoff parameter information of each associated area according to the rainfall and drainage information; wherein the runoff parameter information includes the relationship between the change of the drainage flow value of each river flowing through the associated area to the next area along the river trajectory and time;

[0040] A calculation module is used to generate an optimal control strategy for the river water level in the target area based on the runoff parameter information of each river flowing through the associated area and the river water level control constraints of the target area, taking into account the water level regulation and storage capacity of each river flowing through the associated area, and calculate the quantitative values ​​of geological risk assessment of several river trajectory points in the target area under the optimal control strategy for the river water level;

[0041] The generation module is used to generate geological safety risk assessment results of several river trajectory points of each urban river in the target area by using the geological risk assessment quantification values ​​of several river trajectory points in the target area.

[0042] In addition, in order to achieve the above-mentioned purpose, the present invention also provides a regional geological safety risk assessment device, which includes: a memory, a processor, and a regional geological safety risk assessment program stored in the memory and executable on the processor, and when the regional geological safety risk assessment program is executed by the processor, the steps of the regional geological safety risk assessment method described above are implemented.

[0043] In addition, in order to achieve the above-mentioned purpose, the present invention also provides a storage medium, on which a regional geological safety risk assessment program is stored. When the regional geological safety risk assessment program is executed by a processor, the steps of the above-mentioned regional geological safety risk assessment method are implemented.

[0044] The beneficial effects of the present invention are as follows: a method, device, equipment and storage medium for regional geological safety risk assessment are proposed, by extracting the river trajectories of several urban rivers flowing through the target area from the urban river distribution information of the target area, determining the associated areas flowing through the river trajectories based on the river trajectories, and generating the runoff parameter information of each associated area flowing through the associated area according to the rainfall and drainage information, generating the optimal control strategy of the river water level in the target area according to the runoff parameter information of each associated area flowing through the associated area and the river water level control constraint conditions of the target area, considering the water level regulation and water storage capacity of each river flowing through the associated area and the use demand of the river water level in the target area, and calculating the quantitative value of the geological risk assessment of each river trajectory point, comprehensively weighing the influence of river parameters and geological parameters on the regional geological safety risk assessment, generating the geological safety risk assessment result of the target area for each river trajectory point, thereby improving the accuracy, precision and scene adaptability of the geological safety risk assessment along the urban river in the soil embankment scene, and providing theoretical support for the implementation of urban geological safety protection measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 A schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present invention;

[0046] Figure 2 A schematic diagram of a flow chart of an embodiment of a method for assessing regional geological safety risks of the present invention;

[0047] Figure 3 It is a structural block diagram of a regional geological safety risk assessment device in an embodiment of the present invention.

[0048] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0050] like Figure 1 As shown, Figure 1 It is a schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present invention.

[0051] like Figure 1As shown, the device may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory, or it may be a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0052] Those skilled in the art will understand that Figure 1 The structure of the device shown in the figure does not constitute a limitation of the device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0053] like Figure 1 As shown, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a regional geological safety risk assessment program.

[0054] exist Figure 1 In the terminal shown, the network interface 1004 is mainly used to connect to the backend server and perform data communication with the backend server; the user interface 1003 is mainly used to connect to the client (user end) and perform data communication with the client; and the processor 1001 can be used to call the regional geological safety risk assessment program stored in the memory 1005 and perform the following operations:

[0055] Acquire urban river distribution information of a target area, and extract river trajectories of a plurality of urban rivers flowing through the target area from the urban river distribution information;

[0056] Based on the river trajectory, a number of associated areas of each urban river are matched, and rainfall drainage information of a number of associated areas is obtained. According to the rainfall drainage information, runoff parameter information of each associated area is generated; wherein the runoff parameter information includes the relationship between the change of the drainage flow value of each river flowing through the associated area to the next area along the river trajectory and time;

[0057] Based on the runoff parameter information of each river flowing through the associated area and the river water level control constraints of the target area, the water level regulation and storage capacity of each river flowing through the associated area is considered, an optimal control strategy for the river water level of the target area is generated, and the geological risk assessment quantitative values ​​of several river trajectory points in the target area under the optimal control strategy for the river water level are calculated;

[0058] The geological risk assessment quantification values ​​of several river trajectory points in the target area are used to generate geological safety risk assessment results of several river trajectory points of each urban river in the target area.

[0059] The specific embodiments of the present invention applied to the device are basically the same as the embodiments of the following application regional geological safety risk assessment method, and will not be described in detail here.

[0060] The embodiment of the present invention provides a method for assessing regional geological safety risks. Figure 2 , Figure 2 It is a flow chart of an embodiment of the regional geological safety risk assessment method of the present invention.

[0061] In this embodiment, the regional geological safety risk assessment method includes the following steps:

[0062] S100: Acquire urban river distribution information of a target area, and extract river trajectories of a plurality of urban rivers flowing through the target area from the urban river distribution information;

[0063] S200: Based on the river trajectory, match a number of associated areas that each urban river flows through, obtain a number of rainfall and drainage information that flows through the associated areas, and generate runoff parameter information for each associated area according to the rainfall and drainage information; wherein the runoff parameter information includes a relationship between the change in the drainage flow value of each river that flows through the associated area to the next area along the river trajectory over time;

[0064] S300: Based on the runoff parameter information of each river flowing through the associated area and the river water level control constraint conditions of the target area, considering the water level regulation and water storage capacity of each river flowing through the associated area, an optimal control strategy for the river water level of the target area is generated, and the geological risk assessment quantitative values ​​of several river trajectory points in the target area under the optimal control strategy for the river water level are calculated;

[0065] S400: Using the geological risk assessment quantification values ​​of the plurality of river trajectory points in the target area, a geological safety risk assessment result of the plurality of river trajectory points of each urban river in the target area is generated.

[0066] It should be noted that in some cases, there is still a need for geological safety risk assessment along urban rivers in soil embankment scenarios (such as ecological protection areas of urban rivers, naturally formed soil embankments in mountainous cities, or riverside areas in towns in the early stages of urbanization where cement embankments have not yet been built). In this case, the geological safety risk of landslide type of river soil embankments is mainly considered, and the existing safety risk assessment methods applied to cement embankments are not applicable. At the same time, traditional river area risk assessment has two limitations: First, the precision of geological safety risk assessment is not high. At present, river area risk assessment mainly considers river parameters such as river water level, river water speed and river flow. When performing risk assessment, it is only judged whether the parameters are higher than the set value, without considering the influence of geological parameters, and the set value is generally set too high. Usually, the risk assessment red line is triggered only when very significant flood-level river parameters appear, and the geological safety risks caused by small changes in river parameters cannot be accurately perceived; second, the adaptability of geological safety risk assessment scenarios is poor. At present, river area risk assessment has not been applied to cities, and lacks consideration of factors such as urban river regulation and river water level demand. River regulation (such as the use of upstream water storage projects) can adjust the impact of river parameters on urban areas when conducting geological safety risk assessment, while river water level demand (such as the impact of river transportation and ecological environment on the river water level range) imposes certain restrictions on river regulation, which increases the difficulty of geological safety risk assessment in different scenarios.

[0067] In order to solve the above problems, this embodiment extracts the river trajectories of several urban rivers flowing through the target area from the urban river distribution information of the target area, determines the associated areas based on the river trajectories, and generates runoff parameter information for each associated area based on rainfall and drainage information. According to the runoff parameter information of each associated area and the river water level control constraints of the target area, the water level regulation and storage capacity of each river flowing through the associated area and the target area's demand for river water level are considered to generate the optimal control strategy for the river water level in the target area, and calculates the quantitative value of the geological risk assessment of each river trajectory point, comprehensively weighs the impact of river parameters and geological parameters on regional geological safety risk assessment, and generates the geological safety risk assessment results for each river trajectory point in the target area, so as to improve the accuracy, precision and scenario adaptability of the geological safety risk assessment along the urban river in the soil embankment scenario, and provide theoretical support for the implementation of urban geological safety protection measures.

[0068] In a preferred embodiment, the step of obtaining urban river distribution information of a target area and extracting river trajectories of a plurality of urban rivers flowing through the target area from the urban river distribution information specifically includes:

[0069] S110: Acquire a remote sensing image of a target area, input the remote sensing image into a pre-trained river recognition model, extract a first river track of each urban river in the target area, and mark the first river track on an electronic map of the target area;

[0070] S120: Based on the electronic map with the first river track, a second river track manually marked on the electronic map is obtained, and duplicate track points in each track point of the first river track and the second river track are removed according to the principle of merging the error distance range;

[0071] S130: Generate urban river distribution information of river trajectories including a plurality of urban rivers in the target area based on the plurality of trajectory points after repeated trajectory points are eliminated.

[0072] On this basis, based on the river trajectory, several steps of matching each city river through associated areas are performed, specifically including:

[0073] S210: calling the river trajectories of several adjacent areas of the target area, and extracting the associated area for each urban river in the target area from the several adjacent areas based on the position matching relationship between each river trajectory point in the target area and the river trajectories of the several adjacent areas;

[0074] S220: repeatedly calling the adjacent areas of the associated area, performing position matching of each river trajectory point in the river trajectory between the associated area and the adjacent areas of the associated area, and extracting the adjacent areas with position matching relationship as new associated areas, until there are no river trajectory points with position matching relationship between the associated area and the adjacent areas;

[0075] S230: extracting all associated regions of each urban river, and taking an associated region set including all associated regions as the associated region flowing through each urban river in the target region.

[0076] Furthermore, the step of obtaining rainfall drainage information of a plurality of flows passing through the associated areas and generating runoff parameter information of each flow passing through the associated areas according to the rainfall drainage information specifically includes:

[0077] S240: Accessing a weather database, extracting rainfall forecast data corresponding to each monitoring period before the target period for each flow passing through the associated area stored in the weather database;

[0078] S250: based on the mapping ratio relationship between the rainfall and the river drainage flow in the historical rainfall and drainage monitoring data of each associated area, convert the rainfall prediction data corresponding to each monitoring period into the corresponding river drainage flow value;

[0079] S260: Generate runoff parameter information including changes in the drainage flow value of each river flowing through the associated area along the river trajectory to the next area over time based on the drainage flow value of each river flowing through the associated area in each monitoring period and the water withdrawal application amount of each river flowing through the associated area in each monitoring period.

[0080] In this embodiment, by acquiring and identifying the first river trajectory in the remote sensing image of the target area and the manually marked second river trajectory, the urban river distribution information of the river trajectory of several urban rivers in the target area is generated, and then by calling the river trajectories of several adjacent areas of the target area, after matching the river trajectory points, the flow-through associated area for each urban river in the target area is obtained. After that, the rainfall forecast data corresponding to each monitoring cycle before the target period for each flow-through associated area is extracted by accessing the weather database, and the runoff parameter information of each flow-through associated area is generated after converting it into a river drainage flow value and taking into account the water consumption applied for river withdrawal.

[0081] In a preferred embodiment, according to the runoff parameter information of each flow through the associated area and the river water level control constraint conditions of the target area, the water level regulation and water storage capacity of each river flowing through the associated area is considered, and the steps of generating the optimal control strategy for the river water level of the target area specifically include:

[0082] S310: Based on the standard river water flow time corresponding to each urban river flowing through the associated area to the target area, the river drainage flow value corresponding to each river flowing through the associated area is superimposed according to the time of flowing through to the target area, so as to obtain the river drainage flow prediction value of the target area in the target period, and the river drainage flow prediction value is used as the runoff parameter information of the target area.

[0083] S320: Obtain river water level control constraints in the target area, extract the river water level upper limit and the river water level lower limit in the river water level control constraints, access each water storage project database that flows through the associated area, and query the remaining water storage capacity parameters of each water storage project that flows through the associated area;

[0084] S330: Based on the predicted value of the river drainage flow in the target area during the target period, the upper limit value and the lower limit value of the river water level, and the remaining water storage capacity parameter of each water storage project flowing through the associated area, the difference between the predicted value of the river drainage flow in each control period in the target period and the river water storage flow value in each water storage period corresponding to each control period flowing through the associated area is converted into the actual river water level value of the target area, which is between the upper limit value and the lower limit value of the river water level, as a first constraint condition; the remaining water storage capacity parameter of each water storage project flowing through the associated area after completing the water storage task in the target period is not less than the minimum remaining water storage capacity parameter, as a second constraint condition; the minimum cumulative sum of the fluctuation amplitudes of the actual river water level values ​​in each adjacent control period in the target period is taken as the optimization target, and the water storage control execution action of each water storage project flowing through the associated area is optimized and solved;

[0085] S340: Based on the water storage control execution action of the water storage project, determine the relationship between the river water level in the target area and time in the target period, and generate an optimal control strategy for the river water level in the target area.

[0086] Furthermore, the step of calculating the quantitative value of geological risk assessment of a plurality of river trajectory points in the target area under the optimal control strategy of the river water level specifically includes:

[0087] S350: calling the riverside geological accident database, extracting the historical geological association data set of each riverside geological accident in the riverside geological accident database; wherein the historical geological association data set includes several geological parameters of the geological accident location, the closest distance value from the geological accident location to the river, and the water level change characteristics of the river closest to the geological accident location;

[0088] S360: Obtain the river water level change relationship of several river trajectory points in the target area, the geological parameters of each geological risk assessment point within a preset distance range along the river bank of each river trajectory point, and the closest distance value from each geological risk assessment point to the river, and construct an actual geological association data set for each river trajectory point;

[0089] S370: Calculate the matching degree of the actual geological association data set of each river trajectory point with several items of data in the historical geological association data set of each riverside geological accident in the riverside geological accident database, and take the value with the highest matching degree among several riverside geological accidents as the quantitative value of the geological risk assessment of the corresponding river trajectory point.

[0090] In this embodiment, after obtaining the runoff parameter information of each flow passing through the associated area, the optimal control strategy for the river water level in the target area is generated based on the runoff parameter information of each flow passing through the associated area and the river water level control constraints of the target area, taking into account the water level regulation and storage capacity of each river flowing through the associated area and the target area's demand for river water level. Based on the historical geological correlation data set of geological accidents in the riverside area, the quantitative value of the geological risk assessment of each river trajectory point is determined by calculating the matching degree, and the impact of river parameters and geological parameters on the regional geological safety risk assessment is comprehensively measured.

[0091] In a preferred embodiment, the step of generating geological safety risk assessment results of several river trajectory points of each urban river in the target area by using the geological risk assessment quantified values ​​of several river trajectory points in the target area specifically includes:

[0092] S410: obtaining geological risk assessment quantitative values ​​of a plurality of river trajectory points in the target area, and determining a plurality of high-risk river trajectory points in the target area that meet geological safety high-risk conditions according to the geological risk assessment quantitative values ​​and a preset geological risk assessment quantitative threshold;

[0093] Among them, the high-risk river trajectory points that meet the high-risk geological safety conditions are configured as the first river trajectory points in the target area where the geological risk assessment quantification value is higher than the preset geological risk assessment quantification threshold value by a ratio exceeding the first target ratio and a number of second river trajectory points where the target number of geological risk assessment quantification values ​​are higher than the preset geological risk assessment quantification threshold value appear continuously;

[0094] S420: Determine whether the proportion of high-risk river trajectory points in the target area to all river trajectory points exceeds a second preset proportion. If so, adjust the upper limit of the river water level in the river water level control constraint of the target area according to the preset rules, and return to re-execute the steps of generating the optimal control strategy for the river water level in the target area based on the runoff parameter information of each flow through the associated area and the river water level control constraint of the target area, taking into account the water level regulation and water storage capacity of each river flowing through the associated area;

[0095] The preset rule is configured such that the downward adjustment ratio of the upper limit of the river water level is positively correlated with the difference in the proportion of the quantity exceeding the second preset ratio.

[0096] In this embodiment, after calculating and obtaining the geological risk assessment quantitative value of each river trajectory point, the risk of each river trajectory point is judged according to the proportion and continuity of the geological risk assessment quantitative value exceeding the preset geological risk assessment quantitative threshold, and the geological safety risk assessment result for each river trajectory point in the target area is generated. At the same time, the optimal control strategy of the river water level can be adjusted and the geological safety can be improved by adjusting the upper limit of the river water level in the river water level control constraint condition (that is, the geological safety along the river is improved by restricting some uses of the river), so as to improve the accuracy, precision and scene adaptability of the geological safety risk assessment along the urban river in the soil embankment scenario, and provide theoretical support for the implementation of urban geological safety protection measures.

[0097] Reference Figure 3 , Figure 3 It is a structural block diagram of an embodiment of a regional geological safety risk assessment device of the present invention.

[0098] like Figure 3 As shown, the regional geological safety risk assessment device proposed in the embodiment of the present invention includes:

[0099] An acquisition module 10 is used to acquire urban river distribution information of a target area, and extract river tracks of a plurality of urban rivers flowing through the target area from the urban river distribution information;

[0100] The matching module 20 is used to match a plurality of associated areas of each urban river based on the river trajectory, obtain rainfall and drainage information of the plurality of associated areas, and generate runoff parameter information of each associated area according to the rainfall and drainage information; wherein the runoff parameter information includes a relationship between the change of the drainage flow value of each river flowing through the associated area to the next area along the river trajectory and time;

[0101] A calculation module 30 is used to generate an optimal control strategy for the river water level in the target area based on the runoff parameter information of each river flowing through the associated area and the river water level control constraint conditions of the target area, taking into account the water level regulation and water storage capacity of each river flowing through the associated area, and calculate the quantitative values ​​of geological risk assessment of several river trajectory points in the target area under the optimal control strategy for the river water level;

[0102] The generation module 40 is used to generate geological safety risk assessment results of several river trajectory points of each urban river in the target area by using the geological risk assessment quantification values ​​of several river trajectory points in the target area.

[0103] Other embodiments or specific implementations of the regional geological safety risk assessment device of the present invention can refer to the above-mentioned method embodiments and will not be described in detail here.

[0104] In addition, the present invention also proposes a regional geological safety risk assessment device, which includes: a memory, a processor, and a regional geological safety risk assessment program stored in the memory and executable on the processor, and when the regional geological safety risk assessment program is executed by the processor, the steps of the regional geological safety risk assessment method described above are implemented.

[0105] The specific implementation methods of the regional geological safety risk assessment equipment of the present application are basically the same as the various embodiments of the above-mentioned regional geological safety risk assessment method, and will not be repeated here.

[0106] In addition, the present invention also proposes a readable storage medium, which includes a computer-readable storage medium on which a regional geological safety risk assessment program is stored. The readable storage medium may be Figure 1 The memory 1005 in the terminal may also be at least one of a ROM (Read-Only Memory) / RAM (Random Access Memory), a magnetic disk, and an optical disk. The readable storage medium includes a number of instructions for enabling a regional geological safety risk assessment device with a processor to execute the regional geological safety risk assessment method described in each embodiment of the present invention.

[0107] The specific implementation methods in the readable storage medium of the present application are basically the same as the various embodiments of the above-mentioned regional geological safety risk assessment method, and will not be repeated here.

[0108] It is understood that, in the description of this specification, the description with reference to the terms "one embodiment", "another embodiment", "other embodiments", or "first to Nth embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0109] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0110] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0111] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0112] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A regional geological safety risk assessment method, characterized in that: The following steps are involved: Acquire urban river distribution information of a target area, and extract river trajectories of a plurality of urban rivers flowing through the target area from the urban river distribution information; Based on the river trajectory, a number of associated areas of each urban river are matched, and rainfall drainage information of a number of associated areas is obtained. According to the rainfall drainage information, runoff parameter information of each associated area is generated; wherein the runoff parameter information includes the relationship between the change of the drainage flow value of each river flowing through the associated area to the next area along the river trajectory and time; According to the runoff parameter information of each flow through the associated area and the river water level control constraints of the target area, the water level regulation and storage capacity of each river flowing through the associated area is considered, and the optimal control strategy of the river water level in the target area is generated, and the quantitative values ​​of the geological risk assessment of several river trajectory points in the target area under the optimal control strategy of the river water level are calculated; specifically, the following are included: According to the standard river water flow time from each city river flowing through the associated area to the target area, the drainage flow value of each river flowing through the associated area is superimposed according to the time of flowing through the target area, so as to obtain the predicted value of the river drainage flow of the target area in the target period, and the predicted value of the river drainage flow is used as the runoff parameter information of the target area; Obtain river water level control constraints in the target area, extract the river water level upper limit and the river water level lower limit in the river water level control constraints, access each water storage project database passing through the associated area, and query the remaining water storage capacity parameters of each water storage project passing through the associated area; According to the predicted value of the river drainage flow in the target area during the target period, the upper limit value and the lower limit value of the river water level, and the remaining water storage capacity parameter of each water storage project flowing through the associated area, the difference between the predicted value of the river drainage flow in each control period in the target period and the river water storage flow value in each water storage period corresponding to each control period flowing through the associated area is converted into the actual river water level value of the target area, which is between the upper limit value and the lower limit value of the river water level, as the first constraint condition; the remaining water storage capacity parameter of each water storage project flowing through the associated area after completing the water storage task in the target period is not less than the minimum remaining water storage capacity parameter, as the second constraint condition; the minimum cumulative sum of the fluctuation amplitudes of the actual river water level values ​​in each adjacent control period in the target period is taken as the optimization target, and the water storage control execution action of each water storage project flowing through the associated area is optimized and solved; Based on the water storage control execution action of the water storage project, determining the relationship between the river water level in the target area and the time change in the target period, and generating the optimal control strategy for the river water level in the target area; Calling a riverside geological accident database, extracting a historical geological association data set of each riverside geological accident in the riverside geological accident database; wherein the historical geological association data set includes a number of geological parameters of the geological accident location, the closest distance value from the geological accident location to the river, and the water level change characteristics of the river closest to the geological accident location; Obtain the river water level change relationship of several river trajectory points in the target area, the geological parameters of each geological risk assessment point within a preset distance range along the river bank of each river trajectory point, and the closest distance value from each geological risk assessment point to the river, and construct an actual geological association data set for each river trajectory point; Calculate the matching degree of the actual geological association data set of each river trajectory point with several items of data in the historical geological association data set of each riverside regional geological accident in the riverside regional geological accident database, and use the value with the highest matching degree among several riverside regional geological accidents as the quantitative value of the geological risk assessment of the corresponding river trajectory point; Using the geological risk assessment quantitative values ​​of several river trajectory points in the target area, the geological safety risk assessment results of several river trajectory points of each urban river in the target area are generated; specifically including: Obtaining geological risk assessment quantitative values ​​of a plurality of river trajectory points in the target area, and determining a plurality of high-risk river trajectory points in the target area that meet geological safety high-risk conditions based on the geological risk assessment quantitative values ​​and a preset geological risk assessment quantitative threshold; Among them, the high-risk river trajectory points that meet the high-risk geological safety conditions are configured as the first river trajectory points in the target area where the geological risk assessment quantification value is higher than the preset geological risk assessment quantification threshold value by a ratio exceeding the first target ratio and a number of second river trajectory points where the target number of geological risk assessment quantification values ​​are higher than the preset geological risk assessment quantification threshold value appear continuously; Determine whether the proportion of high-risk river trajectory points in the target area to all river trajectory points exceeds a second preset proportion. If so, adjust the upper limit of the river water level in the river water level control constraint of the target area according to the preset rules, and return to re-execute the steps of generating the optimal control strategy for the river water level in the target area based on the runoff parameter information of each flow through the associated area and the river water level control constraint of the target area, taking into account the water level regulation and water storage capacity of each river flowing through the associated area; The preset rule is configured such that the downward adjustment ratio of the upper limit of the river water level is positively correlated with the difference in the proportion of the quantity exceeding the second preset ratio.

2. The regional geological safety risk assessment method according to claim 1, characterized in that: The steps of obtaining urban river distribution information of a target area and extracting river trajectories of a plurality of urban rivers flowing through the target area from the urban river distribution information specifically include: Acquire a remote sensing image of a target area, input the remote sensing image into a pre-trained river recognition model, extract a first river track of each urban river in the target area, and mark the first river track on an electronic map of the target area; Based on the electronic map with the first river track, a second river track manually marked on the electronic map is obtained, and duplicate track points in each track point of the first river track and the second river track are eliminated according to the principle of merging the error distance range; Based on a number of trajectory points after repeated trajectory points are eliminated, urban river distribution information of river trajectories containing a number of urban rivers in the target area is generated.

3. The regional geological safety risk assessment method according to claim 1, characterized in that: Based on the river trajectory, the steps of matching each city river with several associated areas through which the river flows include: Calling the river trajectories of several adjacent areas of the target area, and extracting the associated area for each urban river in the target area from the several adjacent areas based on the position matching relationship between each river trajectory point in the target area and the river trajectories of the several adjacent areas; Repeatedly calling the adjacent area of ​​the associated area, performing position matching of each river trajectory point in the river trajectory of the associated area and the adjacent area of ​​the associated area, and extracting the adjacent area with a position matching relationship as a new associated area, until there is no river trajectory point with a position matching relationship between the associated area and the adjacent area; All associated regions of each urban river are extracted, and an associated region set including all associated regions is used as the associated region flowing through each urban river in the target region.

4. The regional geological safety risk assessment method according to claim 1, characterized in that: The step of obtaining rainfall and drainage information of a plurality of flows passing through the associated areas and generating runoff parameter information of each flow passing through the associated areas according to the rainfall and drainage information specifically includes: Accessing a weather database, extracting rainfall forecast data corresponding to each monitoring period before a target period for each flow passing through an associated area stored in the weather database; Based on the mapping ratio between rainfall and river drainage flow in the historical rainfall and drainage monitoring data of each associated area, the rainfall forecast data corresponding to each monitoring period is converted into the corresponding river drainage flow value; Based on the river drainage flow value of each river flowing through the associated area in each monitoring period and the river water withdrawal application volume of each river flowing through the associated area in each monitoring period, runoff parameter information including the changes over time of the river drainage flow value of each river flowing through the associated area to the next area along the river trajectory is generated.

5. A regional geological safety risk assessment device, characterized in that: include: An acquisition module, used to acquire urban river distribution information of a target area, and extract river tracks of a plurality of urban rivers flowing through the target area from the urban river distribution information; A matching module is used to match a number of associated areas of each urban river based on the river trajectory, obtain rainfall and drainage information of the associated areas, and generate runoff parameter information of each associated area according to the rainfall and drainage information; wherein the runoff parameter information includes the relationship between the change of the drainage flow value of each river flowing through the associated area to the next area along the river trajectory and time; The calculation module is used to generate the optimal control strategy of the river water level in the target area according to the runoff parameter information of each flow through the associated area and the river water level control constraint conditions of the target area, taking into account the water level regulation and water storage capacity of each river flowing through the associated area, and calculate the quantitative values ​​of the geological risk assessment of several river trajectory points in the target area under the optimal control strategy of the river water level; specifically including: According to the standard river water flow time from each city river flowing through the associated area to the target area, the drainage flow value of each river flowing through the associated area is superimposed according to the time of flowing through the target area, so as to obtain the predicted value of the river drainage flow of the target area in the target period, and the predicted value of the river drainage flow is used as the runoff parameter information of the target area; Obtain river water level control constraints in the target area, extract the river water level upper limit and the river water level lower limit in the river water level control constraints, access each water storage project database passing through the associated area, and query the remaining water storage capacity parameters of each water storage project passing through the associated area; According to the predicted value of the river drainage flow in the target area during the target period, the upper limit value and the lower limit value of the river water level, and the remaining water storage capacity parameter of each water storage project flowing through the associated area, the difference between the predicted value of the river drainage flow in each control period in the target period and the river water storage flow value in each water storage period corresponding to each control period flowing through the associated area is converted into the actual river water level value of the target area, which is between the upper limit value and the lower limit value of the river water level, as the first constraint condition; the remaining water storage capacity parameter of each water storage project flowing through the associated area after completing the water storage task in the target period is not less than the minimum remaining water storage capacity parameter, as the second constraint condition; the minimum cumulative sum of the fluctuation amplitudes of the actual river water level values ​​in each adjacent control period in the target period is taken as the optimization target, and the water storage control execution action of each water storage project flowing through the associated area is optimized and solved; Based on the water storage control execution action of the water storage project, determining the relationship between the river water level in the target area and the time change in the target period, and generating the optimal control strategy for the river water level in the target area; Calling a riverside geological accident database, extracting a historical geological association data set of each riverside geological accident in the riverside geological accident database; wherein the historical geological association data set includes a number of geological parameters of the geological accident location, the closest distance value from the geological accident location to the river, and the water level change characteristics of the river closest to the geological accident location; Obtain the river water level change relationship of several river trajectory points in the target area, the geological parameters of each geological risk assessment point within a preset distance range along the river bank of each river trajectory point, and the closest distance value from each geological risk assessment point to the river, and construct an actual geological association data set for each river trajectory point; Calculate the matching degree of the actual geological association data set of each river trajectory point with several items of data in the historical geological association data set of each riverside regional geological accident in the riverside regional geological accident database, and use the value with the highest matching degree among several riverside regional geological accidents as the quantitative value of the geological risk assessment of the corresponding river trajectory point; The generation module is used to generate geological safety risk assessment results of several river trajectory points of each urban river in the target area by using the geological risk assessment quantitative values ​​of several river trajectory points in the target area; specifically including: Obtaining geological risk assessment quantitative values ​​of a plurality of river trajectory points in the target area, and determining a plurality of high-risk river trajectory points in the target area that meet geological safety high-risk conditions based on the geological risk assessment quantitative values ​​and a preset geological risk assessment quantitative threshold; Among them, the high-risk river trajectory points that meet the high-risk geological safety conditions are configured as the first river trajectory points in the target area where the geological risk assessment quantification value is higher than the preset geological risk assessment quantification threshold value by a ratio exceeding the first target ratio and a number of second river trajectory points where the target number of geological risk assessment quantification values ​​are higher than the preset geological risk assessment quantification threshold value appear continuously; Determine whether the proportion of high-risk river trajectory points in the target area to all river trajectory points exceeds a second preset proportion. If so, adjust the upper limit of the river water level in the river water level control constraint of the target area according to the preset rules, and return to re-execute the steps of generating the optimal control strategy for the river water level in the target area based on the runoff parameter information of each flow through the associated area and the river water level control constraint of the target area, taking into account the water level regulation and water storage capacity of each river flowing through the associated area; The preset rule is configured such that the downward adjustment ratio of the upper limit of the river water level is positively correlated with the difference in the proportion of the quantity exceeding the second preset ratio.

6. A regional geological safety risk assessment device, characterized in that: The regional geological safety risk assessment device includes: a memory, a processor, and a regional geological safety risk assessment program stored in the memory and executable on the processor. When the regional geological safety risk assessment program is executed by the processor, the steps of the regional geological safety risk assessment method according to any one of claims 1 to 4 are implemented.

7. A storage medium, characterized in that: The storage medium stores a regional geological safety risk assessment program, which, when executed by a processor, implements the steps of the regional geological safety risk assessment method according to any one of claims 1 to 4.

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