基于改进SPC的地铁监测数据分析方法  

Analysis Method for Metro Monitoring Data Using Modified Statistics Process Control

作　　者：史磊磊 郭彩霞 王熠琛 孔恒 SHI Leilei;GUO Caixia;WANG Yichen;KONG Heng(Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education,Beijing University of Technology,Beijing 100124,China;Beijing Municipal Construction Group Co.,Ltd.,Beijing 100045,China;Agiletech Engineering Consultants Co.,Ltd.,Beijing 100037,China;Beijing Construction Engineering Group Co.,Ltd.,Beijing 100055,China)

机构地区：[1]北京工业大学城市与工程安全减灾教育部重点实验室,北京100124 [2]北京市政建设集团有限责任公司,北京100045 [3]北京安捷工程咨询有限公司,北京100037 [4]北京建工集团有限责任公司,北京100055

出　　处：《隧道建设（中英文）》2023年第6期1027-1034,共8页Tunnel Construction

基　　金：北京市教育委员会科技计划一般项目(KM202210005039);北京工业大学城市建设学部教育教学项目(CJXBYB202118);北京市博士后工作经费资助项目(2021zz-104)。

摘　　要：为对地铁监测数据进行科学分析,在传统“双控”指标分析方法的基础上,引入并改进统计过程控制(statistics process control,SPC)技术,建立新的分析方法。参考基础性国标GB 50068—2018《建筑结构可靠性设计统一标准》中的相关规定,明确SPC技术的理论依据3σ准则对应的假设检验显著性水平α=0.27%明显偏小。提出应该以α=5%建立适用于土木工程领域的分析准则,即2σ非连续准则;并将新准则与SPC结合,形成适用于地铁工程建设的监测数据分析方法。最后,基于工程实例验证了新方法的可行性。经研究可以明确:1)引入SPC可以充分利用监测数据,分析出传统分析方法不易识别出的数据变化特征;2)改进SPC技术更加满足地铁工程建设领域的基本要求,对数据的分析判定也更加严格。Herein,the statistical process control(SPC)technology based on the traditional"double-control"indicator analysis method is introduced and modified to scientifically analyze metro monitoring data.The significance level of the hypothesis test(α=0.27%)corresponding to the 3σ criterion of the SPC is low according to the Chinese cardinal engineering national code GB 50068-2018.Therefore,the 2σ discontinuity identification criterion applied in civil engineering is proposed based on the significance level α=5%.The proposed scientific monitoring and analysis method for metro construction is established by combining the novel criterion and the SPC technology.A case study is conducted to verify the feasibility of the proposed method.The results show that SPC can fully utilize the monitoring data and analyze unidentified data variations through the traditional"double-control"indicator analysis.The modified SPC outperforms the traditional method in terms of project application and data analysis results.

关 键 词：地铁 监测数据 统计过程控制 3σ准则 2σ非连续准则 

分 类 号：U45[建筑科学—桥梁与隧道工程]