A safety risk management method for mountain tunnel construction based on spatiotemporal model

Abstract

The present invention proposes a mountain tunnel construction safety risk management method based on a spatiotemporal model, which relates to the field of tunnel construction safety technology, including: dividing the tunnel project into space and time according to the geological survey data and construction drawing documents of the tunnel project; establishing a spatiotemporal model of tunnel construction safety risk based on the division results; determining the risk factors and risk events of tunnel construction in the spatiotemporal model of tunnel construction safety risk; using the risk factors and risk events of tunnel construction to dynamically update the tunnel project construction safety risk model, and at the same time perform safety risk assessment based on the updated data, and perform tunnel construction safety risk management through the assessment results; the present invention accurately and comprehensively grasps the risk factors and risk events of the tunnel construction process by reflecting the time-space distribution of risk factors and risk events in the tunnel construction process, and uses this to conduct assessment, analysis and management, thereby providing a guarantee for tunnel construction safety.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction safety, and in particular to a mountain tunnel construction safety risk management method based on a spatiotemporal model. Background Art

[0002] With the rapid development of highway and railway construction in my country, the number of mountain tunnels continues to increase, and the safety risk management of tunnel construction has become an important part of tunnel construction management. Tunnel construction has its own particularity compared to other types of projects, mainly manifested in the following aspects: (1) Tunnel construction is a dynamic system distributed in time and space. There are multiple operations in the tunnel cross section and in the space along the axis; from the perspective of time continuity, tunnel construction organization is a continuous, repetitive and cyclical construction process. (2) The tunnel construction production process is a closed-loop operation chain. Tunnel construction has connectivity and coordination between different operation activities and operation links, involving the coordination and cooperation of multiple types of work. The safety risk of tunnel construction is affected by the combined effects of the four factors of "people, machines, environment and management", and the construction safety risk is high.

[0003] Current research results on tunnel construction safety risk management cannot solve a difficult problem facing safety production work at tunnel construction sites: in the context of constant changes in the tunnel surrounding rock and construction methods, it is impossible to perceive the risk factors (or hazard sources) of construction safety risks faced by carrying out a specific operation activity in a certain part of the tunnel, it is impossible to predict possible risk events (or safety accidents), and it is impossible to take countermeasures to manage risks, making it impossible to ensure tunnel construction safety.

[0004] Based on this, a mountain tunnel construction safety risk management method based on spatiotemporal model is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a mountain tunnel construction safety risk management method based on a spatiotemporal model, which can solve the risk management problem of mountain tunnel construction by fully perceiving the risk situation of the tunnel construction process.

[0006] The technical solution of the present invention is:

[0007] This application provides a mountain tunnel construction safety risk management method based on a spatiotemporal model, which includes the following steps:

[0008] S1. Divide the tunnel project into space and time based on the geological survey data and construction drawings of the tunnel project to obtain a division result;

[0009] S2. Establish a spatiotemporal model of tunnel construction safety risk based on the division results;

[0010] S3. Determine the risk factors and risk events of tunnel construction in the spatiotemporal model of tunnel construction safety risk;

[0011] S4. Dynamically update the tunnel construction safety risk model using the risk factors and risk events of tunnel construction. Simultaneously, conduct a safety risk assessment based on the data after the updated tunnel construction safety risk model to obtain the assessment results, and conduct tunnel construction safety risk management based on the assessment results.

[0012] Furthermore, step S1 includes:

[0013] Divide the tunnel project into sub-projects based on the geological survey data and construction drawings of the tunnel project;

[0014] Divide the sub-project into different construction sections according to the construction environment and construction methods;

[0015] Divide each construction section into several spatial units according to the construction cycle footage and specific processes;

[0016] Each space unit is coded and divided into space sub-project code, space construction section code, space construction method code and space construction location code;

[0017] Divide each space unit into several work activities according to the specific process based on the construction content;

[0018] Each operation activity is coded from the time dimension and divided into time construction method coding and time construction process coding;

[0019] The spatial division project code, spatial construction section code, spatial construction method code, spatial construction location code, time construction method code and time construction process code are taken as the division results.

[0020] Furthermore, step S2 includes:

[0021] Based on the spatial division engineering code, spatial construction section code, spatial construction method code and spatial construction location code, a spatial combination of each construction method is formed, and a tunnel construction spatial structure database is established through the spatial combination of each construction method.

[0022] Construct a tunnel construction spatial structure model based on different surrounding rock conditions, different construction methods, and the tunnel construction spatial structure database;

[0023] Based on the time construction method code and the time construction process code, a time combination of each construction method is formed, and a tunnel construction time structure database is established through the time combination of each construction method;

[0024] Construct a tunnel construction time structure model based on the construction methods of each section of the tunnel and the tunnel construction time structure database;

[0025] The tunnel construction spatial structure model and the tunnel construction temporal structure model are combined to form a spatiotemporal model of tunnel construction safety risk.

[0026] Furthermore, step S3 includes:

[0027] Establish a one-to-one correspondence between each spatial unit of the tunnel and the time unit to construct the logical grid unit of the spatiotemporal model of tunnel construction safety risk;

[0028] The internal attributes of each logical grid unit are determined through the tunnel construction spatial structure database and the tunnel construction temporal structure database, and are used as risk factors for tunnel construction.

[0029] Based on the risk analysis method, the risk factors are analyzed to determine the risk events of tunnel construction.

[0030] Furthermore, the method adopted in the above risk analysis includes the fishbone diagram method.

[0031] Furthermore, the methods used in the above-mentioned safety risk assessment in step S4 include LEC method and risk matrix method.

[0032] Compared with the prior art, the present invention has at least the following advantages or beneficial effects:

[0033] (1) The present invention provides a mountain tunnel construction safety risk management method based on a spatiotemporal model. By establishing a spatiotemporal model for tunnel construction safety risk and utilizing the time-space distribution of risk factors and risk events during tunnel construction, the risk factors and risk events during tunnel construction are accurately and comprehensively grasped. This method can be used for evaluation, analysis and management, and the daily construction safety situation can be clearly grasped, thus providing a guarantee for tunnel construction safety.

[0034] (2) The present invention promotes dynamic management, utilizes risk factors and risk events of tunnel construction, dynamically updates the tunnel engineering construction safety risk model, makes timely responses and countermeasures according to the dynamic changes of construction safety risks over time and space, realizes closed-loop management of risk factors in each logical grid unit, and achieves "full coverage and full process" of construction safety risk management. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 This is a step diagram of a mountain tunnel construction safety risk management method based on a spatiotemporal model according to the present invention;

[0037] Figure 2 Schematic diagram of the spatiotemporal model of tunnel construction safety risks. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0041] It should be noted that, in this document, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the elements defined by the phrase "comprises..." do not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the elements.

[0042] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, or electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0043] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features thereof may be combined with each other.

[0044] Example 1

[0045] See also Figure 1 , Figure 1 Shown is a step diagram of a mountain tunnel construction safety risk management method based on a spatiotemporal model provided in an embodiment of the present application.

[0046] This application provides a mountain tunnel construction safety risk management method based on a spatiotemporal model, which includes the following steps:

[0047] S1. Divide the tunnel project into space and time based on the geological survey data and construction drawings of the tunnel project to obtain a division result;

[0048] S2. Establish a spatiotemporal model of tunnel construction safety risk based on the division results;

[0049] S3. Determine the risk factors and risk events of tunnel construction in the spatiotemporal model of tunnel construction safety risk;

[0050] S4. Dynamically update the tunnel construction safety risk model using the risk factors and risk events of tunnel construction. Simultaneously, conduct a safety risk assessment based on the data after the updated tunnel construction safety risk model to obtain the assessment results, and conduct tunnel construction safety risk management based on the assessment results.

[0051] As a preferred embodiment, step S1 includes:

[0052] Divide the tunnel project into sub-projects based on the geological survey data and construction drawings of the tunnel project;

[0053] Divide the sub-project into different construction sections according to the construction environment and construction methods;

[0054] Divide each construction section into several spatial units according to the construction cycle footage and specific processes;

[0055] Among them, the construction environment and construction content within each spatial unit are unique.

[0056] Each space unit is coded and divided into space sub-project code, space construction section code, space construction method code and space construction location code;

[0057] Divide each space unit into several work activities according to the specific process based on the construction content;

[0058] Among them, the construction personnel and construction equipment corresponding to each work activity are unique.

[0059] Each operation activity is coded from the time dimension and divided into time construction method coding and time construction process coding;

[0060] The spatial division project code, spatial construction section code, spatial construction method code, spatial construction location code, time construction method code and time construction process code are taken as the division results.

[0061] It should be noted that the spatial sub-project code is the code obtained by spatially dividing the sub-project, the spatial construction section code is the code obtained by spatially dividing different construction sections, the spatial construction method code is the code obtained by spatially dividing different construction methods, the spatial construction site code is the code obtained by spatially dividing different construction sites, the time construction method code is the code obtained by dividing the construction methods at different times, and the time construction process code is the code obtained by dividing the construction processes at different times.

[0062] As a preferred embodiment, step S2 includes:

[0063] Based on the spatial division engineering code, spatial construction section code, spatial construction method code and spatial construction location code, a spatial combination of each construction method is formed, and a tunnel construction spatial structure database is established through the spatial combination of each construction method.

[0064] Construct a tunnel construction spatial structure model based on different surrounding rock conditions, different construction methods, and the tunnel construction spatial structure database;

[0065] Based on the time construction method code and the time construction process code, a time combination of each construction method is formed, and a tunnel construction time structure database is established through the time combination of each construction method;

[0066] Construct a tunnel construction time structure model based on the construction methods of each section of the tunnel and the tunnel construction time structure database;

[0067] The tunnel construction spatial structure model and the tunnel construction temporal structure model are combined to form a spatiotemporal model of tunnel construction safety risk.

[0068] As a preferred embodiment, step S3 includes:

[0069] Establish a one-to-one correspondence between each spatial unit of the tunnel and the time unit to construct the logical grid unit of the spatiotemporal model of tunnel construction safety risk;

[0070] The internal attributes of each logical grid unit are determined through the tunnel construction spatial structure database and the tunnel construction temporal structure database, and are used as risk factors for tunnel construction.

[0071] Based on the risk analysis method, the risk factors are analyzed to determine the risk events of tunnel construction.

[0072] like Figure 2 Shown is a schematic diagram of the spatiotemporal model of tunnel construction safety risks.

[0073] A one-to-one correspondence is established between each spatial unit of the tunnel and the time unit. The risk events of tunnel construction can be analyzed and determined through work activities, spatial locations and risk factors.

[0074] As a preferred implementation, the risk analysis method includes a fishbone diagram method.

[0075] As a preferred implementation, the methods used for security risk assessment in step S4 include LEC method and risk matrix method.

[0076] It should be understood that the structure shown in the figure is merely illustrative. A method for managing mountain tunnel construction safety risks based on a spatiotemporal model may include more or fewer components than shown in the figure, or have a different configuration than that shown. Each component shown in the figure may be implemented using hardware, software, or a combination thereof.

[0077] In the embodiments provided in this application, it should be understood that the disclosed methods can also be implemented in other ways. The embodiments described above are merely illustrative. For example, the flowcharts or block diagrams in the accompanying drawings show the possible architecture, functions and operations of the methods and computer program products according to the embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, program segment or a part of the code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.

[0078] In addition, the functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0079] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0080] In summary, the embodiment of the present application provides a method for managing mountain tunnel construction safety risks based on a spatiotemporal model. The method divides the tunnel project into space and time according to the geological survey data and construction drawing documents of the tunnel project, and establishes a spatiotemporal model of tunnel construction safety risks based on the division results. The method determines the risk factors and risk events of tunnel construction in the spatiotemporal model of tunnel construction safety risks, and then dynamically updates the tunnel construction safety risk model using the risk factors and risk events of tunnel construction. At the same time, a safety risk assessment is performed based on the updated data, and finally, tunnel construction safety risk management is performed based on the assessment results. The present invention reflects the spatiotemporal distribution of risk factors and risk events during the tunnel construction process, accurately and comprehensively grasps the risk factors and risk events of the tunnel construction process, and uses this to conduct assessment, analysis and management, thereby providing a guarantee for tunnel construction safety.

[0081] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

[0082] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A mountain tunnel construction safety risk management method based on a spatiotemporal model, characterized by: The following steps are involved: S1. Divide the tunnel project into space and time based on the geological survey data and construction drawings of the tunnel project to obtain a division result; S2. Based on the division results, a spatiotemporal model of tunnel construction safety risk is established, specifically: Based on the spatial division engineering code, spatial construction section code, spatial construction method code and spatial construction location code, a spatial combination of each construction method is formed, and a tunnel construction spatial structure database is established through the spatial combination of each construction method. Construct a tunnel construction spatial structure model based on different surrounding rock conditions, different construction methods, and the tunnel construction spatial structure database; Based on the time construction method code and the time construction process code, a time combination of each construction method is formed, and a tunnel construction time structure database is established through the time combination of each construction method; Construct a tunnel construction time structure model based on the construction methods of each section of the tunnel and the tunnel construction time structure database; The tunnel construction space structure model and the tunnel construction time structure model are combined to form a tunnel construction safety risk spatiotemporal model; S3. Determine the risk factors and risk events of tunnel construction in the spatiotemporal model of tunnel construction safety risk; S4. Dynamically update the tunnel construction safety risk model using the risk factors and risk events of tunnel construction. Simultaneously, conduct a safety risk assessment based on the data after the updated tunnel construction safety risk model to obtain the assessment results, and conduct tunnel construction safety risk management based on the assessment results.

2. A mountain tunnel construction safety risk management method based on a spatiotemporal model as claimed in claim 1, characterized in that: Step S1 includes: Divide the tunnel project into sub-projects based on the geological survey data and construction drawings of the tunnel project; Divide the sub-project into different construction sections according to the construction environment and construction methods; Divide each construction section into several spatial units according to the construction cycle footage and specific processes; Each space unit is coded and divided into space sub-project code, space construction section code, space construction method code and space construction location code; Divide each space unit into several work activities according to the specific process based on the construction content; Each operation activity is coded from the time dimension and divided into time construction method coding and time construction process coding; The spatial division project code, spatial construction section code, spatial construction method code, spatial construction location code, time construction method code and time construction process code are taken as the division results.

3. A mountain tunnel construction safety risk management method based on a spatiotemporal model as claimed in claim 2, characterized in that: Step S3 includes: Establish a one-to-one correspondence between each spatial unit of the tunnel and the time unit to construct the logical grid unit of the spatiotemporal model of tunnel construction safety risk; The internal attributes of each logical grid unit are determined through the tunnel construction spatial structure database and the tunnel construction temporal structure database, and are used as risk factors for tunnel construction. Based on the risk analysis method, the risk factors are analyzed to determine the risk events of tunnel construction.

4. A mountain tunnel construction safety risk management method based on a spatiotemporal model as claimed in claim 3, characterized in that: The method adopted for the risk analysis includes the fishbone diagram method.

5. A mountain tunnel construction safety risk management method based on a spatiotemporal model as claimed in claim 3, characterized in that: The methods used for the safety risk assessment in step S4 include the LEC method and the risk matrix method.

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