Design change management method and system in hydropower station construction process

Abstract

The invention provides a design change management method and system in a hydropower station construction process. The method comprises the following steps: S01, collecting and filling design change information; s02, formulating a standardized design change application approval process, and executing design change online approval circulation; s03, executing design change after approval is passed; s04, comparing and analyzing the design change quantity and the actual change quantity; and S05, establishing a design change management ledger, and collecting design change files. Change information can be collected and arranged in real time, and design change can be approved in time; a standardized management method is established, and a digital management system is developed based on the management method to execute the management method, so that standardization and scientificity of change management are ensured; by designing and changing the management system, collaborative management of all parties participating in construction is realized in the agreed management system; and the change execution condition can be monitored and fed back in real time, and problems can be found and adjusted in time.

Description

Technical Field

[0001] This invention relates to the field of hydropower station construction design change management, specifically to a method and system for design change management during the construction of a hydropower station. Background Technology

[0002] During the construction of modern water conservancy and hydropower projects, design changes frequently occur due to factors such as the expansion of construction scale and the extension of construction period, influenced by factors including principal / individual behavior, site environment, policy environment, and project contracts. Design changes in water conservancy and hydropower projects can have a significant impact on project scale and schedule, project safety and ecological environment, project investment, and project benefits. Therefore, it is necessary to adopt scientific and effective methods for design change management.

[0003] Design changes refer to modifications, improvements, and optimizations made to approved preliminary design documents, technical design documents, or construction drawings from the date of preliminary design approval to the date of formal handover after completion and acceptance. Design change management refers to the management of changes and modifications made by the design unit to the design standards expressed in the original construction drawings and design documents. During the construction process, design change management needs to clarify the responsibilities, rights, and work requirements of each department to improve the efficiency of cross-departmental collaboration. Design change management is an important part of project management, requiring close collaboration with other departments and adherence to certain procedures and standards to ensure the rationality and effectiveness of changes. During the change process, it is also necessary to reasonably control the costs incurred by the changes to ensure that the revised design does not have an excessive impact on project costs. Hydropower station projects are characterized by large scale, tight schedules, and heavy construction tasks. In order to ensure that the construction progress is not affected, many projects often overlook the importance of the design change handling process, failing to assign dedicated personnel to handle change approval procedures, and failing to establish standardized change handling procedures. Often, approval is only obtained retroactively after the design change has been initiated, rendering the change review and management process a mere formality and increasing the difficulty of controlling project costs and schedules. Summary of the Invention

[0004] The first objective of this invention is to provide a method for managing design changes during the construction of hydropower stations, addressing the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A method for managing design changes during the construction of a hydropower station includes the following steps:

[0007] S01: Collect and submit design change information;

[0008] S02: Establish a standardized design change application and approval process, and implement an online approval workflow for design changes;

[0009] S03: Design changes approved and implemented;

[0010] S04: Comparative analysis of design changes and actual changes;

[0011] S05: Establish a design change management ledger and collect design change documents.

[0012] While adopting the above technical solutions, the present invention may also adopt or combine the following technical solutions:

[0013] As a preferred technical solution of the present invention: the design change information in step S01 includes: document type, specialty, submitted version, document grade, change type, engineering location, countersigning instructions, whether there is a change in engineering quantity, unit price analysis table, engineering quantity item table, original design documents, and design plan association.

[0014] As a preferred embodiment of the present invention, step S02 specifically includes the following sub-steps:

[0015] S021: The design change approval application initiated by the chief designer is approved by the general contractor's design manager, then countersigned by various departments within the general contractor, and finally revised by the chief designer and design manager with their countersigned opinions;

[0016] S022: After obtaining the consent of the chief engineer of the general contractor, the document shall be submitted to the general contractor supervisor for approval. After the technical reviewer and commercial reviewer approve it, the general contractor supervisor shall upload the technical review opinion form and the commercial review opinion form, and affix the approval stamp to the design change document. The chief supervising engineer shall then decide whether to approve its implementation.

[0017] S023: For general design changes, after approval by the chief supervising engineer, the general contractor's representative shall execute the change. For major design changes, the change shall be submitted to the construction unit for approval. After approval by the construction unit, the change shall be implemented by the general contractor's representative. For significant design changes, after approval by the construction unit, the change shall be submitted to the relevant government department or industry authority for review. The general contractor shall modify and improve the change according to the review comments and submit it to the supervisor for approval before implementation.

[0018] As a preferred technical solution of the present invention: step S03 specifically includes: the approved design change is circulated among relevant departments within the general contractor, construction is carried out according to the design change, and the implementation of the change is monitored and fed back in real time; the design change that is not approved is returned to the initiator, and after receiving the approval opinion, the initiator revises it according to the approval opinion and submits it for approval.

[0019] As a preferred technical solution of the present invention: step S04 specifically includes: establishing an automatic association between the design change quantity and the corresponding quantity item in the contract bill of quantities; after filling in the actual quantity of the change, automatically performing an investment comparison analysis of the design change quantity and the actual change quantity for the change quantity item; and taking corresponding measures to control costs in a timely manner based on the comparison analysis results.

[0020] As a preferred technical solution of the present invention, step S05 specifically includes: extracting design change information, setting a design change document classification directory tree, establishing a design change ledger, and classifying and collecting the approved design change documents into the designated directory tree according to the change information.

[0021] A second objective of this invention is to provide a computer device.

[0022] Therefore, the above-mentioned objective of the present invention is achieved through the following technical solution:

[0023] A computer device includes a processor and a memory, the memory storing a computer program executable by the processor, the computer program, when executed, implementing the steps of a design change management method for the construction process of a hydropower station as described above.

[0024] A third objective of this invention is to provide a storage medium.

[0025] Therefore, the above-mentioned objective of the present invention is achieved through the following technical solution:

[0026] The storage medium stores a computer program that can be executed by a processor. When the computer program is executed, it implements the steps of a design change management method for hydropower station construction as described above.

[0027] The fourth objective of this invention is to provide an online electronic document signing system.

[0028] Therefore, the above-mentioned objective of the present invention is achieved through the following technical solution:

[0029] After uploading the design change documents to the system, click the "Sign and Seal" button to affix your personal electronic signature and electronic seal to the design change documents within the system.

[0030] The fifth objective of this invention is to provide a model display system for design change documents based on a B / S architecture.

[0031] Therefore, the above-mentioned objective of the present invention is achieved through the following technical solution:

[0032] Enables users to query design change documents and design change statistics based on a 3D BIM model on a webpage.

[0033] This invention provides a design change management method and system for the construction of hydropower stations, which has the following advantages: This invention can collect and organize change information in real time and approve design changes in a timely manner; it establishes a standardized management method and develops a digital management system based on the management method to implement the management method, ensuring the standardization and scientific nature of change management; through the design change management system, collaborative management of all participating parties can be realized within the agreed management system; and it can monitor and provide feedback on the implementation of changes in real time, promptly identify problems and make adjustments. Attached Figure Description

[0034] Figure 1 A flowchart of the design change management method during the construction of a hydropower station provided by the present invention.

[0035] Figure 2 A flowchart for design change management and approval.

[0036] Figure 3 To visualize the results of design change management.

[0037] Figure 4 To visualize the results of design change management. Detailed Implementation

[0038] The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

[0039] like Figure 1 As shown, a design change management method during the construction of a hydropower station includes the following steps:

[0040] S01: Collect and submit design change information: Develop a design change reporting and management system, and submit design change information in the system. The main contents include: document type, specialty, version submitted for approval, document grade, change type, engineering location, countersigning instructions, whether there is a change in the quantity of work, unit price analysis table, quantity item table, original design documents, design plan association, etc. Upload the main text of the change document and various attachments to the corresponding attachment list.

[0041] S02: Establish a standardized design change application and approval process, and implement an online approval workflow for design changes: Review and approve design change information and documents through internal processes involving the general contractor, general contractor supervision unit, construction unit, and relevant government departments or industry regulatory authorities, generating review documents, approval documents, etc. Figure 2 As shown, after a design change application is initiated, the approval process has built-in approval time limits based on the type of approval node. For applications nearing or exceeding the deadline, reminder SMS messages are automatically sent. During the approval process, applicants and approvers can monitor the approval status and each approver's comments in real time.

[0042] S021: The design change approval application initiated by the chief designer is approved by the general contractor's design manager, then countersigned by various departments within the general contractor, and finally revised by the chief designer and design manager with their countersigned opinions;

[0043] S022: After obtaining the consent of the chief engineer of the general contractor, the document shall be submitted to the general contractor supervisor for approval. After the technical reviewer and commercial reviewer approve it, the general contractor supervisor shall upload the technical review opinion form and the commercial review opinion form, and affix the approval stamp to the design change document. The chief supervising engineer shall then decide whether to approve its implementation.

[0044] S023: For general design changes, after approval by the chief supervising engineer, the general contractor's representative shall execute the change. For major design changes, the change shall be submitted to the construction unit for approval. After approval by the construction unit, the change shall be implemented by the general contractor's representative. For significant design changes, after approval by the construction unit, the change shall be submitted to the relevant government department or industry authority for review. The general contractor shall modify and improve the change according to the review comments and submit it to the supervisor for approval before implementation.

[0045] S03: Approved design changes are circulated among relevant departments within the general contractor, and construction is carried out according to the design changes. The implementation of the changes is monitored and feedback is provided in real time. Design changes that are not approved are returned to the initiator. After receiving the approval comments, the initiator revises the changes according to the approval comments and submits them for approval.

[0046] S04: Comparative Analysis of Design Changes and Actual Changes: Based on the information such as the coding and change quantities of the design change items collected in step S01, an automatic association relationship is established with the corresponding quantity items in the contract bill of quantities. After the change is implemented, the actual quantity is filled in, thereby automatically performing a comparative analysis of the investment of the design change and actual change quantities for the change items. Based on the results of the comparative analysis, corresponding measures are taken in a timely manner to control costs.

[0047] S05: Establish a design change management ledger and collect design change documents: Extract design change information, set up a design change document classification directory tree, establish a design change ledger, and classify and collect approved design change documents according to change information under the specified directory tree to facilitate classification search and query.

[0048] A computer device includes a processor and a memory, the memory storing a computer program executable by the processor, which, when executed, implements the steps of a design change management method for the construction process of a hydropower station as described above.

[0049] A storage medium storing a computer program executable by a processor, wherein the computer program, when executed, implements the steps of a design change management method for the construction process of a hydropower station as described above.

[0050] An online electronic document signing system allows users to affix their personal electronic signature and electronic seal to design change documents uploaded to the system by clicking the signing button. Both the electronic signature and the seal comply with laws and regulations. The system uses encryption technology to support the generation, downloading, transfer, and archiving of design change documents.

[0051] Design change management based on 3D BIM models: The 3D model is segmented and coded according to the engineering construction package information. Through the coding of engineering parts, a mapping is achieved between design change documents and the 3D model based on the engineering parts filled in the design change information. After the lightweight 3D BIM model is published to the design change management system, clicking on any engineering part in the model will... Figure 3 The results shown can be used to query the statistical results of design changes for this part of the project, such as... Figure 4 The document shown allows you to view the design change documents related to this part of the project.

[0052] A model display system for design change documents based on a B / S architecture enables users to query design change documents and design change statistics on a webpage based on a 3D BIM model.

[0053] The above specific embodiments are used to explain and illustrate the present invention, and are only preferred embodiments of the present invention, not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made to the present invention within the spirit and scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A method for managing design changes during the construction of a hydropower station, characterized in that, Includes the following steps: S01: Collect and submit design change information; S02: Establish a standardized design change application and approval process, and implement an online approval workflow for design changes; S03: Design changes approved and implemented; S04: Comparative analysis of design changes and actual changes; S05: Establish a design change management ledger and collect design change documents.

2. The design change management method during the construction of a hydropower station according to claim 1, characterized in that: The design change information in step S01 includes: document type, specialty, submitted version, document grade, change type, engineering location, countersigning instructions, whether there are changes in the engineering quantity, unit price analysis table, engineering quantity item table, original design documents, and design plan association.

3. The design change management method during the construction of a hydropower station according to claim 1, characterized in that: Step S02 specifically includes the following sub-steps: S021: The design change approval application initiated by the chief designer is approved by the general contractor's design manager, then countersigned by various departments within the general contractor, and finally revised by the chief designer and design manager with their countersigned opinions; S022: After obtaining the consent of the chief engineer of the general contractor, the document shall be submitted to the general contractor supervisor for approval. After the technical reviewer and commercial reviewer approve it, the general contractor supervisor shall upload the technical review opinion form and the commercial review opinion form, and affix the approval stamp to the design change document. The chief supervising engineer shall then decide whether to approve its implementation. S023: For general design changes, after approval by the chief supervising engineer, the general contractor's representative shall execute the change. For major design changes, the change shall be submitted to the construction unit for approval. After approval by the construction unit, the change shall be implemented by the general contractor's representative. For significant design changes, after approval by the construction unit, the change shall be submitted to the relevant government department or industry authority for review. The general contractor shall modify and improve the change according to the review comments and submit it to the supervisor for approval before implementation.

4. The design change management method during the construction of a hydropower station according to claim 1, characterized in that: Step S03 specifically includes: approved design changes are circulated among relevant departments within the general contractor, construction is carried out according to the design changes, and the implementation of the changes is monitored and feedback is provided in real time; design changes that are not approved are returned to the initiator, who, after receiving the approval comments, revises them according to the approval comments and submits them for approval.

5. The design change management method during the construction of a hydropower station according to claim 1, characterized in that: Step S04 specifically includes: establishing an automatic association between the design change quantity and the corresponding quantity item in the contract bill of quantities; after filling in the actual quantity of the change, automatically performing an investment comparison analysis of the design change quantity and the actual change quantity for the change quantity item; and taking appropriate measures to control costs in a timely manner based on the comparison analysis results.

6. The design change management method during the construction of a hydropower station according to claim 1, characterized in that: Step S05 specifically includes: extracting design change information, setting up a design change document classification directory tree, establishing a design change ledger, and classifying and collecting the approved design change documents according to the change information into the designated directory tree.

7. A computer device comprising a processor and a memory, wherein the memory stores a computer program executable by the processor, characterized in that: When the computer program is executed, it implements the steps of a design change management method for the construction process of a hydropower station as described in claims 1-6.

8. A storage medium, characterized in that: The storage medium stores a computer program that can be executed by a processor. When the computer program is executed, it implements the steps of a design change management method for the construction process of a hydropower station as described in claims 1-6.

9. An online electronic document signing system, characterized in that: After uploading the design change documents to the system, click the "Sign and Seal" button to affix your personal electronic signature and electronic seal to the design change documents within the system.

10. A model display system for design change documents based on a B / S architecture, characterized in that: Enables users to query design change documents and design change statistics based on a 3D BIM model on a webpage.

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