Risk assessment method, device, equipment and program product for nuclear power plant construction

Abstract

The invention relates to the field of nuclear power, in particular to a risk assessment method, device and equipment for nuclear power plant construction and a program product. The method comprises the steps of obtaining construction plan data of an overhaul project group of a nuclear power plant; determining a time cross risk according to the construction window, the operation function position, the operation content and the operation condition of each project; according to the construction window, the operation area and the operation function position, determining a space crossing risk; determining a resource cross risk according to the construction window and the resource demand; determining a design interface risk according to the design interface information of each project; and determining a risk list of the construction plan data according to the time cross risk, the space cross risk, the resource cross risk and the design interface risk. Multi-dimensional and systematic analysis is carried out through global space, time, resources and design interface information, effective identification of various risks of a project group is realized, the cross coupling risk is reduced, and the construction safety quality is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of nuclear power, and in particular to a risk assessment method, device, equipment and program product for nuclear power plant construction. BACKGROUND

[0002] In the overhaul and reconstruction project of a nuclear power plant, a large number of projects are usually carried out simultaneously, and there may be cross or coupling between these projects and between the reconstruction project and the associated maintenance activities. For example, there are more than 90 reconstruction projects in a nuclear power plant for 30 years, involving multiple major reconstruction and maintenance projects, the projects are interdependent, and the resources, construction windows and spaces required by each project are complex and complicated.

[0003] The traditional risk assessment method mainly relies on the experience judgment of the responsible person and the single FMEA (Failure Mode and Effects Analysis) mode, and adopts isolated analysis based on work orders, which is difficult to assess the butterfly effect of the multi-project progress network. Local process delay may cause systematic progress collapse through the key path. Due to the lack of comprehensive analysis capability, these cross-coupling risks cannot be effectively identified, which may easily lead to construction safety and quality problems. SUMMARY

[0004] Therefore, the embodiments of the present application provide a risk assessment method, device, equipment and program product for nuclear power plant construction to solve the problem that the risk assessment in the prior art cannot effectively identify these cross-coupling risks, which may easily lead to construction safety and quality problems.

[0005] The first aspect of the embodiments of the present application provides a risk assessment method for nuclear power plant construction, the method comprising:

[0006] obtaining construction plan data of a group of overhaul projects of the nuclear power plant, the construction plan data comprising work content, construction window, work condition, work area, work function position, resource requirement and design interface information of each project;

[0007] determining time cross risk of each project in the same work content and the same work function position according to the construction window, work function position, work content and work condition of each project;

[0008] determining space cross risk of each project in the same work space according to the construction window, work area and work function position of each project;

[0009] determining resource cross risk of each project in resource use according to the construction window and resource requirement of each project;

[0010] determining design interface risk of each project according to the design interface information of each project;

[0011] determine a risk list of the construction plan data according to the time cross risk, the space cross risk, the resource cross risk and the design interface risk.

[0012] With reference to the first aspect, in a first possible implementation manner of the first aspect, the time cross risk of the projects in the same operation content and the same operation function position is determined according to the construction window, the operation function position, the operation content and the operation condition of each project, and the time cross risk includes:

[0013] The first time cross risk of the same operation condition is determined according to the construction window and the operation condition of each project.

[0014] The second time cross risk of the same operation function position is determined according to the operation function position, the operation content and the construction window of each project.

[0015] The logical association risk of the operation is determined according to the operation condition.

[0016] The time cross risk is determined according to the first time cross risk, the second time cross risk and the logical association risk.

[0017] With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the operation condition includes pre-work and prerequisite condition, cooperative working condition.

[0018] The logical association risk of the operation is determined according to the operation condition, and the determining includes:

[0019] The logical association work list of the associated work is determined according to the pre-work and prerequisite condition and the cooperative working condition.

[0020] The logical association risk of the operation is determined according to the logical association work list.

[0021] With reference to the first aspect, in a third possible implementation manner of the first aspect, the space cross risk of the projects in the same operation space is determined according to the construction window, the operation area and the operation function position of each project, and the determining includes:

[0022] The potential operation space cross risk is determined according to the operation area and the operation function position of each project.

[0023] The operation space risk is determined according to the potential operation space cross risk and the construction window.

[0024] The site space cross risk is determined according to the operation area.

[0025] The operation space cross risk is determined according to the operation space risk and the site space cross risk.

[0026] In a fourth possible implementation manner of the first aspect, in the third possible implementation manner of the first aspect, the work area includes item on-site storage requirement information, item hoisting and transportation path information requirement, and cable laying information;

[0027] determining, according to the work area, an on-site space intersection risk, including:

[0028] determining, according to the item on-site storage requirement information, an item storage space intersection risk;

[0029] determining, according to the item hoisting and transportation path information requirement, a hoisting and transportation space intersection risk;

[0030] determining, according to the cable laying information, a circuit laying path intersection risk.

[0031] In a fifth possible implementation manner of the first aspect, in the first aspect, the resource requirement includes manpower requirement, external resource requirement, special tool requirement, machine tool requirement, and consumable requirement;

[0032] determining, according to the construction window and the resource requirement of each project, a resource intersection risk existing in the resource use of each project, including:

[0033] determining, according to the manpower requirement and the construction window, a manpower resource intersection risk;

[0034] determining, according to the external resource requirement and the construction window, an external resource intersection risk;

[0035] determining, according to the special tool requirement, the machine tool requirement, and the construction window, a work machine tool resource intersection risk;

[0036] determining, according to the consumable requirement and the inventory quantity of the required consumable, a consumable resource intersection risk;

[0037] determining, according to the manpower resource intersection risk, the external resource intersection risk, the work machine tool resource intersection risk, and the consumable resource intersection risk, the resource intersection risk.

[0038] In a sixth possible implementation manner of the first aspect, in the first aspect, determining, according to design interface information of each project, a design interface risk of each project, including:

[0039] determining, according to project correlation and systematic design risk, an input and output design risk;

[0040] determining, according to design interface information in device update information, a device interface matching risk;

[0041] determining, according to project quality appraisal information, a quality appraisal interaction risk;

[0042] According to the input / output design risk, the device interface matching risk and the quality identification interaction risk, the design interface risk is determined.

[0043] In a seventh possible implementation of the first aspect, after the risk list of the construction plan data is determined according to the time cross risk, the space cross risk, the resource cross risk and the design interface risk, the method further comprises:

[0044] Consequences of a risk item in the risk list and a possibility of the risk item are determined.

[0045] According to the consequences of the risk item and the possibility of the risk item, a risk level of the risk item is determined.

[0046] In an eighth possible implementation of the first aspect, after the risk list of the construction plan data is determined according to the time cross risk, the space cross risk, the resource cross risk and the design interface risk, the method further comprises:

[0047] Risk control measures of a risk item in the risk list are determined.

[0048] Effectiveness of the risk control measures is verified through at least one of field simulation, desktop deduction, sand table deduction and 3D simulation.

[0049] A second aspect of the embodiments of the present application provides a risk assessment device for nuclear power plant construction, the device comprising:

[0050] A construction plan data acquisition unit is configured to acquire construction plan data of a group of overhaul projects of the nuclear power plant, the construction plan data comprising work content, construction window, work condition, work area, work function position, resource requirement and design interface information of each project;

[0051] A time cross risk determination unit is configured to determine time cross risks of each project in a same work content and a same work function position according to the construction window, the work function position, the work content and the work condition of each project;

[0052] A space cross risk determination unit is configured to determine space cross risks of each project in a same work space according to the construction window, the work area and the work function position of each project;

[0053] A resource cross risk determination unit is configured to determine resource cross risks of each project in resource use according to the construction window and the resource requirement of each project;

[0054] The design interface risk determination unit is configured to determine the design interface risks of the projects according to the design interface information of the projects.

[0055] The risk list determination unit is configured to determine a risk list of the construction plan data according to the time cross risk, the space cross risk, the resource cross risk and the design interface risk.

[0056] The third aspect of the embodiments of the present application provides a risk assessment device for nuclear power plant construction, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor executes the computer program, so that the risk assessment device for nuclear power plant construction implements the method according to any one of the first aspect.

[0057] The fourth aspect of the embodiments of the present application provides a computer program product, which, when executed on a computer, causes the computer to execute the method according to the first aspect or any implementation manner thereof.

[0058] The fifth aspect of the embodiments of the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the steps of the method according to any one of the first aspect.

[0059] The sixth aspect of the embodiments of the present application provides a chip for implementing the method according to any implementation manner of the first aspect. Specifically, the chip comprises a processor configured to call and execute a computer program from a memory, so that a device installed with the chip executes the method according to the first aspect or any implementation manner thereof.

[0060] Compared with the prior art, the embodiments of the present application have the beneficial effects that: the embodiments of the present application obtain the construction plan data of the overhaul project group of the nuclear power plant, determine the time cross risk based on the construction window, the work function position, the work content and the work condition of each project, determine the space cross risk based on the construction window, the work area and the work function position of each project, determine the resource cross risk according to the construction window and the resource demand of the project, and determine the design interface risk according to the design interface information, so as to obtain the risk list of the construction plan data. Since the method analyzes in multiple dimensions and systematically through global space, time, resource and design interface information, the effective identification of various risks of the project group is realized, the cross coupling risk is reduced, and the construction safety quality is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0061] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0062] Figure 1 is a flowchart of an implementation process of a risk assessment method for nuclear power plant construction provided by an embodiment of the present application;

[0063] Figure 2 is a flowchart of a process of determining time cross risk provided by an embodiment of the present application;

[0064] Figure 3 is a flowchart of a process of determining space cross risk provided by an embodiment of the present application;

[0065] Figure 4 is a flowchart of a process of determining resource cross risk provided by an embodiment of the present application;

[0066] Figure 5 is a flowchart of a process of determining design interface risk provided by an embodiment of the present application;

[0067] Figure 6 is a schematic diagram of a risk assessment device for nuclear power plant construction provided by an embodiment of the present application;

[0068] Figure 7 is a schematic diagram of a risk assessment device for nuclear power plant construction provided by an embodiment of the present application. DETAILED DESCRIPTION

[0069] In the following description, specific details are set forth in order to provide a thorough understanding of the embodiments of the present application. However, persons skilled in the art should understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary details.

[0070] In order to illustrate the technical solutions described in the present application, the following will be described through specific embodiments.

[0071] In the overhaul and modification project of nuclear power plants, the cross-coupling risk brought by the parallel implementation of multiple projects has significant complexity. Taking the typical nuclear power plant modification project of thirty years as an example, the total number of modification projects exceeds 90, covering major special projects such as reactor pressure vessel upgrade and main pump system optimization. These projects have multiple correlations in the implementation process, including, for example: logical dependence, such as the need for the outage of another system as a prerequisite for equipment removal; resource competition, involving the temporal and spatial overlap of key resources such as hoisting equipment, radiation protection areas, and special operation personnel; physical space conflict, such as alternating work in the same confined space for electrical system modification and mechanical maintenance. Such coupling relationships form a dynamic network, and a small delay in a local process may trigger a systematic progress risk through a critical path.

[0072] The current mainstream risk assessment mode (such as FMEA analysis of work orders) has structural defects: it uses a single-point, static, isolated analysis framework, relies on the experience of the person in charge to predict the failure impact of a single project, and lacks the ability to quantitatively model the coupling relationships of multiple projects. In addition, secondary risks caused by resource conflicts (such as rework caused by conflicts in the occupation of radiation control areas) are not included in the assessment range, which may ultimately trigger a domino-style progress collapse, accompanied by a chain of consequences such as an increase in welding quality defect rate.

[0073] To solve the above problems, the embodiments of the present application propose a risk assessment method for nuclear power plant construction, Figure 1 The implementation process of the method is shown in the following schematic diagram:

[0074] In S101, construction plan data of a group of overhaul projects of the nuclear power plant is obtained.

[0075] The construction plan data includes the work content, construction window, work condition, work area, work function position, resource demand and design interface information of each project.

[0076] The construction plan data in the embodiments of the present application includes detailed construction plans of all projects during the overhaul of the nuclear power plant, including work content, construction window, work condition, work area, work function position, resource demand and design interface information.

[0077] The work content is the specific construction activity that needs to be performed in the overhaul or modification project of the nuclear power plant. These activities usually include but are not limited to the following categories:

[0078] Equipment disassembly: refers to the process of removing old equipment or components from the nuclear power plant system or equipment. For example, disassembling the heat transfer pipes of the steam generator.

[0079] Equipment installation: refers to the process of installing new equipment or components to a designated location. For example, installing a new reactor pressure vessel cover.

[0080] Equipment commissioning refers to the process of testing and adjusting newly installed or overhauled equipment to ensure its proper operation. For example, a newly installed pump may be subjected to a functional test.

[0081] System testing refers to the comprehensive testing of the entire system to verify that its functions meet the design requirements. For example, a cooling water system may be subjected to a pressure test.

[0082] Cable installation refers to the process of laying power or control cables within a nuclear power plant. For example, cables may be installed between the control room and the reactor.

[0083] Scaffolding refers to the process of erecting scaffolding for high-altitude work. For example, scaffolding may be erected within the reactor building to facilitate equipment installation.

[0084] Construction window refers to the planned start and end times for a construction activity. It is typically represented in the form of a time window, which includes:

[0085] Start time refers to the time at which a construction activity is scheduled to begin.

[0086] End time refers to the time at which a construction activity is scheduled to complete.

[0087] Duration refers to the total time required for a construction activity from start to finish.

[0088] Float time refers to the time that non-critical path activities can be delayed without affecting the overall project schedule.

[0089] Work conditions refer to specific conditions that must be met before a construction activity can begin. These conditions ensure that the construction activity can be performed safely and effectively. Common work conditions include:

[0090] System isolation conditions refer to the isolation of related systems before construction to ensure safety. For example, steam pipes may need to be isolated before performing maintenance on a steam generator.

[0091] Pre-requisites refer to other work that must be completed before a construction activity can begin. For example, equipment installation may require the completion of equipment foundation acceptance before it can begin.

[0092] Resource availability conditions refer to the availability of resources (such as manpower, tools, and materials) required for the construction activity before it can begin.

[0093] Environmental conditions refer to the environmental conditions required for the construction activity, such as temperature, humidity, and radiation levels.

[0094] Work area refers to the physical location where a construction activity is performed. It typically includes:

[0095] Plant area refers to the specific area within the plant where the construction activity is performed. For example, it may refer to the reactor building, turbine building, or electrical building.

[0096] Device Area: The specific location of a device, such as its installation or maintenance position.

[0097] Storage Area: The location where materials and tools are stored.

[0098] Transport Path: The route for transporting equipment and materials.

[0099] Safety Area: An area that requires special protection, such as a radiation shielded area or a restricted area.

[0100] Job Function Position refers to the specific location of a device in a nuclear power plant and its functional role in the system. This includes:

[0101] Location refers to the specific coordinates or position identifier of a device in a nuclear power plant, such as "the second pump in the third row on the east side of the reactor building."

[0102] Functional Role refers to the function of a device in the system, such as "main feedwater pump" or "emergency diesel generator."

[0103] Resource Requirements refer to the various resources needed to complete construction activities. These resources may include:

[0104] Manpower Requirements: The human resources needed to complete construction activities, including workers, engineers, and technicians.

[0105] Tool Requirements: The tools needed to complete construction activities, such as wrenches, welding equipment, and lifting equipment.

[0106] Material Requirements: The materials needed to complete construction activities, such as bolts, gaskets, and cables.

[0107] External Resource Requirements: External resources needed for construction, such as water, electricity, and gas.

[0108] Specialized Tool Requirements: Specialized tools needed for specific construction tasks, such as specialized disassembly tools or testing equipment.

[0109] Machine Requirements: Mechanical equipment needed for construction, such as cranes, transport vehicles, and scaffolding.

[0110] Consumable Requirements: Materials consumed during construction, such as welding materials and cleaning agents.

[0111] Design Interface Information refers to the connections and interactions between different systems, devices, or projects. This information ensures compatibility and coordination between different parts. Design interface information may include:

[0112] Device Interface: Physical connections and interactions between devices, such as pipe connections and electrical connections.

[0113] System Interface: refers to the interaction between systems, such as signal transmission between control systems and execution systems.

[0114] Data Interface: refers to the way of data transmission and sharing between different systems or devices.

[0115] Mechanical Interface: refers to the connection method and specifications between mechanical components.

[0116] Electrical Interface: refers to the connection method and specifications between electrical systems.

[0117] Software Interface: refers to the interaction method and data format between software systems.

[0118] When obtaining construction plan data, project management software (such as Primavera P6) or Excel tables can be used to collect and organize construction plan data of each project. For example, in the overhaul project of a certain nuclear power base, the construction plan data may include detailed information of more than 90 modification projects.

[0119] In S102, according to the construction window, work function position, work content and work condition of each project, the time cross risk of each project in the same work content and the same work function position is determined.

[0120] Time cross risk refers to the overlap or conflict in time of different projects in the same work function position or work content, which may lead to construction logic confusion or resource conflict. Time line analysis or Gantt chart can be used to identify whether the construction windows of different projects in the same work function position overlap. For example, if both projects need to perform disassembly work on the same equipment and the time windows overlap, there is a time cross risk.

[0121] In determining the time cross risk, the first time cross risk of the same work condition can be determined according to the construction window and work condition of each project; the second time cross risk of the same work function position can be determined according to the work function position, work content and construction window of each project; the logical association risk of work can be determined according to the work condition; and the time cross risk can be determined according to the first time cross risk, the second time cross risk and the logical association risk. The logical association work list of associated work can be determined according to the pre-work and prerequisite, and the construction logical association risk can be determined based on the logical association work list.

[0122] Figure 2 An implementation process diagram for determining time cross risk provided by an embodiment of the application is shown, which is described in detail as follows:

[0123] 1. Construction window and system condition analysis.

[0124] By combing the construction window (i.e. working time) and system conditions (i.e. working conditions such as equipment state, isolation conditions, etc.), the main isolation list and the same window operation list can be obtained, which can be used as the basis for subsequent risk identification. If two system conditions can work in parallel, the current path analysis can be closed and completed. If they cannot work in parallel, it is determined that there is a working window crossing risk, i.e. the first time crossing risk.

[0125] 2, combing the working function position and working content.

[0126] The working function position (such as equipment installation position) and the specific working content (such as installation, debugging, etc.) are combed to obtain the same equipment multi-working content account, which ensures a clear understanding of the construction task. If any two of the same equipment multi-working content account can be executed in parallel, the cross risk identification of the two working contents is closed. If they cannot work in parallel, it is determined that there is a working window crossing risk, i.e. the second time crossing risk.

[0127] 3, pre-work and prerequisite combing and coordination work combing.

[0128] Through pre-work combing and pre-work and prerequisite combing, a logically associated work list can be obtained, and a construction logically associated risk can be obtained based on the logically associated work list. Based on the construction logically associated risk and the working window crossing risk, the time crossing risk is determined, and a time crossing risk list is obtained.

[0129] In S103, according to the construction window, the working area, and the working function position of each project, the spatial crossing risk of each project in the same working space is determined.

[0130] In determining the spatial crossing risk, the potential working space crossing risk can be determined according to the working area and the working function position of each project; the working space risk can be determined according to the potential working space crossing risk and the construction window or the working window; the item space crossing risk can be determined according to the working area; and the working space crossing risk can be determined according to the working space risk and the field space crossing risk. The working area includes item field storage demand information, item hoisting and transportation path information demand, and cable laying information. The item storage space crossing risk can be determined according to the item field storage demand information; the hoisting and transportation space crossing risk can be determined according to the item hoisting and transportation path information demand; and the circuit laying path crossing risk can be determined according to the cable laying information.

[0131] As Figure 3In the determination diagram of the space cross risk shown, the area operation list can be obtained by collecting the operation area information, and all operation tasks in a specific area are listed. It is determined whether any two operations belong to the same area operation. If the two operations are not the same area operation, the cross risk judgment of the two operations is closed.

[0132] The equipment operation list, i.e. the list of equipment operation functions, is obtained by collecting the operation function position information. If it is the same equipment operation, i.e. the same operation function position of the equipment, the potential operation space cross risk is determined together with the above-mentioned same area operation. If the operation window requirements of the potential operation space cross risk are the same, it indicates that the same operation function position has a space cross risk in the same operation area, and the operation space cross risk can be determined.

[0133] When determining the item space cross risk according to the operation area, the item storage space demand register can be determined according to the item on-site storage demand. If the storage spaces of two items belong to the same storage space, there is an item storage space cross risk, otherwise, it is transferred to the closing node. Through the collection of the item hoisting and transportation path information, the item hoisting and transportation path register can be obtained, and the equipment operation list and the equipment operation list are detected and judged. If the currently determined item hoisting and transportation path is occupied, there is an item hoisting and transportation space cross risk, otherwise, it is transferred to the closing node. Through the cable laying information collection, the cable path summary list can be obtained, and it is determined whether any two cable paths share a bridge or a hole. If yes, there is a cable path cross risk, otherwise, it is transferred to the closing node. Based on the item hoisting and transportation space cross risk, the item storage space cross risk and the cable path cross risk, the space cross risk list, i.e. the space cross risk list, can be obtained by combining the operation space cross risk.

[0134] In S104, according to the construction window and resource demand of each project, the resource cross risk existing in the resource use of each project is determined.

[0135] In determining the resource cross risk, the human resource cross risk can be determined according to the manpower demand and the construction window; the external resource cross risk can be determined according to the external resource demand and the construction window; the tool and machine resource cross risk can be determined according to the special tool demand, the machine tool demand and the construction window; the consumable resource cross risk can be determined according to the consumable demand and the inventory quantity of the required consumables; and the resource cross risk can be determined according to the human resource cross risk, the external resource cross risk, the tool and machine resource cross risk and the consumable resource cross risk.

[0136] As Figure 4In the cross risk determination process diagram shown, when determining human resource cross risk, the contractor's project can be combed, single project human resource demand can be analyzed, and available resources of the contractor can be combed to determine whether independent resource guarantee is met. If it is met, it is put into the closed node. If it is not met, there is potential human resource cross risk. Combined with the construction window combed from the construction window, it can be detected whether the working time intersects. If there is no intersection, it is transferred to the closed node. If there is an intersection, it is determined that there is human resource cross risk.

[0137] When combs the construction water, electricity and gas source demand, the water source, power source and gas source demand list can be obtained to determine whether two projects share the source item interface. If the source item interface is shared, it is determined that there is potential external source cross risk, and further judgment is made on whether the use time overlaps. If the use time overlaps, there is external source cross risk. If the use time does not overlap, it is put into the closed node. If the source item interface is not shared, it is determined whether the capacity meets the requirement. If it meets the requirement, it is transferred to the closed node. If it does not meet the requirement, there is external source cross risk.

[0138] When the machine tool resource cross risk is performed, the special tool demand list can be obtained through the special tool use demand combing, and it is determined whether the inventory can cover the special tool use demand. If it can cover, it is transferred to the closed node. If it cannot meet the requirement, the same period maximum demand analysis is performed combined with the project construction window combing result. If the inventory can meet the maximum demand, it is transferred to the closed node. Otherwise, it is determined that there is special tool cross risk.

[0139] The crane use demand can be combed to obtain the multi-user crane use demand, and it is determined whether the demand time overlaps combined with the project construction window combing result. If it does not overlap, it is transferred to the closed node. If it overlaps, it is determined that there is crane use cross risk.

[0140] The same type vehicle use demand of multiple users can be obtained through the transport vehicle use demand combing, and it is determined whether the resource can cover the same type vehicle use demand of multiple users. If it is, it is transferred to the closed node. Otherwise, the same period maximum demand analysis is performed, and it is determined whether the resource can meet the maximum demand. If it is, it is transferred to the closed node. Otherwise, it is determined that there is transport vehicle use cross risk.

[0141] Based on the special tool cross risk, crane use cross risk and transport vehicle use cross risk, the resource cross risk list is obtained, that is, the resource cross risk list.

[0142] Through the use of inventory consumable demand combing, it is determined whether the inventory can meet the consumable demand. If it can, it is transferred to the closed node. Otherwise, it is determined that there is consumable resource cross risk.

[0143] Based on the cross-risks of human resources, external resources, tools and equipment, and consumables, a list of cross-risks of resources is determined, namely the cross-risk list of resources.

[0144] In S105, the design interface risks of each project are determined based on the design interface information of each project.

[0145] When determining design interface risks based on the design interface information of each project, input / output design risks can be determined based on project correlation and systemic design risks; equipment interface matching risks can be determined based on the design interface information when equipment is updated; quality assessment interaction risks can be determined based on project quality assessment information; and design interface risks can be determined based on input / output design risks, equipment interface matching risks, and quality assessment interaction risks.

[0146] It is possible Figure 5 As shown, a list of related project inputs and outputs can be determined through project correlation analysis. A list of construction-related technical issues can be determined through system design analysis. Based on the lists of related project inputs and outputs and construction-related technical issues, it can be determined whether they affect the construction process or logic. If they do not affect the construction process or logic, the process proceeds to the closure node. If they do affect the construction process or logic, then a risk of design input / output impact is identified.

[0147] By reviewing the equipment replacement or cancellation list, it can be determined whether hardware interface changes are involved. If hardware interface changes are found, it indicates a risk of equipment interface incompatibility; otherwise, the process is moved to the shutdown stage.

[0148] By reviewing the project quality assessment plan, it can be determined whether online quality assessment is necessary. If not, proceed to the shutdown step; otherwise, conduct an impact analysis of online quality assessment for multiple projects to determine if the same power supply or control loop is involved. If not, proceed to the shutdown step; otherwise, identify the risk of cross-influence from quality assessment and determine if it affects the same system function. If not, proceed to the shutdown step; otherwise, identify the risk of cross-influence from quality assessment.

[0149] Based on input / output design risks, device interface matching risks, and quality assessment interaction risks, design interface risks are identified.

[0150] In S106, a risk list for the construction plan data is determined based on the time crossover risk, spatial crossover risk, resource crossover risk, and design interface risk.

[0151] By using risk identification tools (such as Excel spreadsheets or risk management systems), risks involving time overlap, space overlap, resource overlap, and design interface risks can be compiled into a risk list.

[0152] In the embodiments of the present application, according to the determined construction plan data risk list, it can be analyzed whether the existing measures can achieve the control target, and new control measures can be developed as needed.

[0153] When developing control measures, consequence analysis can be performed on the identified risk items, and the determined consequences include the influence on construction safety, construction quality, construction progress and construction cost. Further risk possibility analysis can be performed, such as evaluating the occurrence possibility of each risk item, determining high, medium and low possibility levels, etc.

[0154] Based on the risk consequence and possibility evaluation, the risk items can be rated, such as the risks can be classified as low, medium and high risks, and corresponding countermeasures can be developed according to different risk levels. The countermeasures can include accepting existing control measures, adding new control measures, etc. For example, for low risk level risks, existing control measures are accepted, and for medium and high risk level risks, new control measures are added, etc.

[0155] In addition, in the embodiments of the present application, when adding control measures, cross-risk elements such as project group construction plan, operation window, construction logic, manpower and coordination resources can be analyzed by fitting, to ensure that the project group can operate in coordination, and to reduce construction logic conflicts, temporary plan adjustments and delays. For example, through planar planning, single area multi-project, different window construction, equipment storage and transfer, and other spatial cross-risk can be adjusted to ensure that each project can be smoothly carried out in its own space.

[0156] Based on the determined adjustment measures, the effectiveness of the risk control measures can be verified through at least one of field simulation, desktop deduction, sand table deduction and 3D simulation.

[0157] For example, field simulation can be performed for complex operation steps and environment to verify the rationality of construction technology and transportation scheme, and to avoid quality or safety problems caused by improper operation. Desktop deduction can be used to verify each link in the complex construction process of a single project, especially the rationality of parallel construction of multiple projects in the same isolation window or the same area. Sand table deduction technology can be used to verify whether the control measures of spatial cross-risk are effective for complex hoisting plan and regional multi-project operation space. 3D simulation can be used to verify the rationality of the construction technology in the complex equipment structure and narrow operation space, and further optimize the construction process through simulation.

[0158] The embodiments of the present application realize the identification of various risks of the project group through a multi-dimensional and systematic method, can comprehensively and accurately identify the multi-project cross-coupling risks. And through the management and control technology and the closed-loop tracking mechanism, it ensures that various risk control measures can be effectively implemented, solves the problem of imperfect risk control measures and ineffective follow-up control of risks in the prior art. In addition, for the construction scheme under complex working conditions, the rationality of complex operation steps and construction schemes can be verified through field simulation, sand table deduction and 3D simulation and other means, which solves the problem that the traditional scheme is difficult to comprehensively verify the risks under complex construction scenes.

[0159] It should be understood that the size of the serial number of each step in the above embodiments does not mean the order of execution, and the execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0160] Figure 6 A nuclear power plant construction risk assessment device provided by the embodiments of the present application is shown in the figure, and the device comprises:

[0161] The construction plan data acquisition unit 601 is configured to acquire construction plan data of the overhaul project group of the nuclear power plant, and the construction plan data comprises operation content, construction window, operation condition, operation area, operation function position, resource requirement and design interface information of each project.

[0162] The time cross risk determination unit 602 is configured to determine the time cross risk of each project in the same operation content and the same operation function position according to the construction window, operation function position, operation content and operation condition of each project.

[0163] The space cross risk determination unit 603 is configured to determine the space cross risk of each project in the same operation space according to the construction window, operation area and operation function position of each project.

[0164] The resource cross risk determination unit 604 is configured to determine the resource cross risk of each project in resource use according to the construction window and resource requirement of each project.

[0165] The design interface risk determination unit 605 is configured to determine the design interface risk of each project according to the design interface information of each project.

[0166] The risk list determination unit 606 is configured to determine the risk list of the construction plan data according to the time cross risk, space cross risk, resource cross risk and design interface risk.

[0167] Figure 6 The nuclear power plant construction risk assessment device shown corresponds to the nuclear power plant construction risk assessment method shown. Figure 1 The nuclear power plant construction risk assessment method shown corresponds to the nuclear power plant construction risk assessment device shown.

[0168] Figure 7 is a schematic view of a risk assessment device for nuclear power plant construction provided by an embodiment of the present application. As shown in the figure, the risk assessment device for nuclear power plant construction 7 of the embodiment comprises a processor 70, a memory 71, and a computer program 72, such as a risk assessment program for nuclear power plant construction, stored in the memory 71 and executable on the processor 70. The processor 70 implements the steps in each of the above-described embodiments of the risk assessment method for nuclear power plant construction when executing the computer program 72. Alternatively, the processor 70 implements the functions of each module / unit in each of the above-described embodiments when executing the computer program 72. Figure 7

[0169] For example, the computer program 72 can be divided into one or more modules / units, which are stored in the memory 71 and executed by the processor 70 to complete the present application. The one or more modules / units can be a series of computer program instruction segments capable of completing a specific function, which are used to describe the execution process of the computer program 72 in the risk assessment device for nuclear power plant construction 7.

[0170] The risk assessment device for nuclear power plant construction 7 can be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The risk assessment device for nuclear power plant construction can include, but is not limited to, the processor 70 and the memory 71. Those skilled in the art can understand that the risk assessment device for nuclear power plant construction can include more or fewer components, or combine some components, or different components, such as the risk assessment device for nuclear power plant construction can also include an input / output device, a network access device, a bus, etc. Figure 7 The risk assessment device for nuclear power plant construction 7 shown in the figure is only an example and does not constitute a limitation on the risk assessment device for nuclear power plant construction 7, which can include more or fewer components than those shown in the figure, or combine some components, or different components, such as the risk assessment device for nuclear power plant construction can also include an input / output device, a network access device, a bus, etc.

[0171] The processor 70 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic components, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0172] ​The memory 71 can be an internal storage unit of the nuclear power plant construction risk assessment device 7, such as a hard disk or a memory of the nuclear power plant construction risk assessment device 7. The memory 71 can also be an external storage device of the nuclear power plant construction risk assessment device 7, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, and the like equipped on the nuclear power plant construction risk assessment device 7. Further, the memory 71 can also include both the internal storage unit and the external storage device of the nuclear power plant construction risk assessment device 7. The memory 71 is used to store the computer program and other programs and data required by the nuclear power plant construction risk assessment device. The memory 71 can also be used to temporarily store data that has been output or will be output.

[0173] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional units and modules is exemplified, and in actual application, the above functions can be completed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for easy distinction, and do not limit the protection scope of the present application. The specific working process of the units and modules in the system can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0174] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described or recorded in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0175] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0176] In the embodiments of the present application, it should be understood that the disclosed apparatus / terminal device and method can be implemented in other manners. For example, the described apparatus / terminal device embodiments are merely schematic. Taking the division of the modules or units as an example, the division can be split in another manner during actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical, mechanical or in other forms.

[0177] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiments.

[0178] In addition, each functional unit in the various embodiments of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0179] The integrated module / unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the above-mentioned embodiment methods can also be completed by computer program instruction related hardware, and the computer program can be stored in a computer readable storage medium. When the processor executes the computer program, the steps of each method embodiment described above can be implemented. The computer program includes computer program code, which can be in the form of source code, object code, executable file or some intermediate form. The computer readable medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium, etc.

[0180] In addition, the embodiments of the present application also provide a computer program product, which, when running on a computer, causes the computer to execute the method in each implementation manner.

[0181] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A risk assessment method for nuclear power plant construction, characterized in that, The method includes: Obtain the construction plan data of the overhaul project group of the nuclear power plant. The construction plan data includes the work content, construction window, work conditions, work area, work function location, resource requirements and design interface information of each project. Based on the construction window, work function location, work content and work conditions of each project, determine the time overlap risk of each project in the same work content and the same work function location; Based on the construction window, work area, and work function location of each project, determine the spatial overlap risk of each project in the same work space; Based on the construction window and resource requirements of each project, identify the resource overlap risks that exist in the resource use of each project; Based on the design interface information of each project, determine the design interface risks of each project; A risk list for the construction plan data is determined based on the aforementioned time overlap risk, spatial overlap risk, resource overlap risk, and design interface risk.

2. The method according to claim 1, characterized in that, Based on the construction window, work function location, work content, and work conditions of each project, determine the time overlap risk for projects with the same work content and the same work function location, including: Based on the construction window and working conditions of each project, determine the first-time overlapping risks under the same working conditions; Based on the operational function location, work content, and construction window of each project, determine the second time overlap risk for the same operational function location; Determine the logical association risks of the operation based on the aforementioned operating conditions; The time crossover risk is determined based on the first time crossover risk, the second time crossover risk, and the logical association risk.

3. The method according to claim 2, characterized in that, The working conditions include preliminary work and prerequisites, and cooperative working conditions; Based on the aforementioned operating conditions, the logical association risks of the operation are determined, including: Determine a logically related list of tasks based on prerequisites, conditions of preparation, and conditions of cooperation. The logical association risks of the job are determined based on the logical association work list.

4. The method according to claim 1, characterized in that, Based on the construction window, work area, and work function location of each project, determine the spatial overlap risks of each project in the same work space, including: Based on the work area and function location of each project, identify potential risks of overlapping work spaces; Based on the potential workspace overlap risk and the construction window, determine the workspace risk; Determine the risks of cross-contamination in the work area; The workspace crossover risk is determined based on the workspace risk and the site space crossover risk.

5. The method according to claim 4, characterized in that, The work area includes on-site storage requirements for items, hoisting and transportation route requirements for items, and cable laying information; Based on the aforementioned work area, determine the on-site spatial cross-risks, including: Based on the on-site storage requirements of the items, determine the risk of overlapping storage spaces for the items; Based on the required hoisting and transportation route information for the items, determine the risk of spatial overlap during hoisting and transportation; The risk of circuit path intersections is determined based on the cable laying information.

6. The method according to claim 1, characterized in that, The resource requirements include human resources requirements, external resource requirements, special tool requirements, machinery requirements, and consumable material requirements. Based on the construction window and resource requirements of each project, identify the resource overlap risks in resource utilization for each project, including: Based on the aforementioned manpower requirements and the aforementioned construction window, determine the cross-risk of human resources. The risk of cross-relation of external resources is determined based on the external resource demand and the construction window. Based on the specific tool requirements, equipment requirements, and construction window, determine the risk of overlapping tool and equipment resources; Based on the required consumables demand and the required inventory of consumables, determine the cross-risk of consumable resources; Based on the aforementioned cross-risks of human resources, external resources, tools and equipment, and consumables, the resource cross-risks are determined.

7. The method according to claim 1, characterized in that, Based on the design interface information of each project, determine the design interface risks of each project, including: Determine the input / output design risks based on the project's relevance and systematic design risks; Based on the design interface information when updating the equipment, determine the risk of equipment interface mismatch; Determine the interactive risks of quality assessment based on project quality assessment information; The design interface risk is determined based on the input / output design risk, the device interface matching risk, and the quality assessment interaction risk.

8. The method according to any one of claims 1-7, characterized in that, After determining the risk list of the construction plan data based on the aforementioned time overlap risk, spatial overlap risk, resource overlap risk, and design interface risk, the method further includes: Determine the consequences and likelihood of each risk item in the risk list; The risk level of a risk item is determined based on its consequences and its probability.

9. The method according to any one of claims 1-7, characterized in that, After determining the risk list of the construction plan data based on the aforementioned time overlap risk, spatial overlap risk, resource overlap risk, and design interface risk, the method further includes: Determine the risk management measures for each risk item in the risk list; The effectiveness of the risk management measures is verified by at least one of on-site simulation, tabletop exercise, sand table exercise, and 3D simulation.

10. A risk assessment device for nuclear power plant construction, characterized in that, The device includes: The construction plan data acquisition unit is used to acquire the construction plan data of the overhaul project group of the nuclear power plant. The construction plan data includes the work content, construction window, work conditions, work area, work function location, resource requirements and design interface information of each project. The time overlap risk determination unit is used to determine the time overlap risk of each project in the same work content and the same work function location based on the construction window, work function location, work content and work conditions of each project; The spatial overlap risk determination unit is used to determine the spatial overlap risk of each project in the same work space based on the construction window, work area, and work function location of each project. The resource crossover risk determination unit is used to determine the resource crossover risks in the resource use of each project based on the construction window and resource requirements of each project. The design interface risk determination unit is used to determine the design interface risk of each project based on the design interface information of each project. The risk list determination unit is used to determine the risk list of the construction plan data based on the time crossover risk, spatial crossover risk, resource crossover risk and design interface risk.

11. A risk assessment device for nuclear power plant construction, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it causes the risk assessment equipment for nuclear power plant construction to implement the method as described in any one of claims 1-9.

12. A computer program product comprising computer program instructions, characterized in that, When the computer program is run, the method as described in any one of claims 1-9 is performed.

Images