摘要
AP1000核电厂引入了模块化的设计和施工方法,理论上可以显著缩短建设工期,这在我国核电建造领域是一次全新的尝试。受到首堆工程因素影响,AP1000的实际工期远远超过了理论工期。对于关键路径上的反应堆厂房内部结构,如果采用结构模块,在排除风险因素情况下优化的最短工期为19个月;如果采用普通钢筋混凝土结构(RC),通过施工效率法计算的工期为12.85至17.68个月(含筋率不同),通过专家法评估工期为18.1个月,均比结构模块工期短。经过分析,发现这是由于AP1000结构模块错层较多的特点和模块化施工的技术难点(楼板模块与墙体模块连接难度较大、结构模块防变形控制难度大)造成的。未来如果要实现核电建设工期的最优化,需要合理选择模块化技术,对模块化设计方案做出改进,同时尽可能简化系统和降低工程量。
The modular design and construction approach is applied to AP1000 nuclear power project,which can significantly shorten the construction period in theory,and this is the first application in the field of nuclear power construction in China.Due to the influence of the first of a kind project,the actual construction period of AP1000 is far beyond the theoretical construction period.For the internal structure of the reactor building which is on the critical path,if the structural module is used,the shortest construction period is 19 months on the condition that risk factors are excluded;if the ordinary reinforced concrete structure is adopted,the construction period is 12.85 months and 17.68 months(with different reinforcement ration)calculated by the construction efficiency method,and 18.1 months evaluated by expert method,which are shorter than that of the structural module.After analysis,the cause is due to the characteristics of the structural module of AP1000 with more staggered floors and the technical difficulties of modular construction(the connection between the floor module and the wall module is more difficult,and anti-deformation control of the structural module is also difficult).In the future,if we want to optimize the construction period of nuclear power plant,we need to choose reasonable modular technology,improve the modular design scheme,and simplify the system as much as possible and reduce the engineering quantity.
作者
刘霞光
王振中
吴宇翔
邰江
徐春富
贾小攀
刘玉林
谢利平
罗峥嵘
席钰金
LIU Xiaguang;WANG Zhenzhong;WU Yuxiang;TAI Jiang;XU Chunfu;JIA Xiaopan;LIU Yulin;XIE Liping;LUO Zhengrong;XI Yujin(China Nuclear Power Engineering Co.,Ltd.,Beijing 100840,China;China Nuclear Industry 22ND Construction Co.,Ltd.,Wuhan of Hubei Prov.430051,China;China Nuclear Industry 24 Construction Co.,Ltd.,Langfang of Hebei Prov.065201,China;China Nuclear Industry Huaxing Construction Co.,Ltd.,Nanjing of Jiangsu Prov.210019,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2022年第3期570-578,共9页
Nuclear Science and Engineering
关键词
模块化
工期优化
SC
RC
内部结构
Modular
Optimization of construction schedule
SC
RC
Internal structure
