工程档案是工程建设过程中产生的科技信息类技术成果,它与建筑实体具有同等的实用价值,是进行城市规划、设计、管理,工程维修、改建、扩建、恢复等工作的依据。随着工程建设时间的推移,熟知工程建设情况的人会逐渐减少,一旦工程要改扩建,就必须以工程的设计文件为基础,如基础设计、结构设计等基本技术数 Engineering archives are technological achievements of science and technology produced in the process of construction. They have the same practical value as construction entities and are the basis for urban planning, design, management, project maintenance, reconstruction, expansion and restoration. As time goes by, the number of people who are familiar with the project construction will gradually decrease. Once the project is to be expanded or expanded, it must be based on the design documents of the project, such as the basic technology such as basic design and structural design