基于改进N-K模型的地铁盾构掘进安全风险耦合研究
Study on coupling of subway shield tunneling safety risk based on improved N-K model
张建设 1黄艳龙 1李瑚均 1陈辉华 2何况 3代姿爽1
作者信息
- 1. 河南理工大学 土木工程学院,河南 焦作 454000
- 2. 中南大学 土木工程学院,湖南 长沙 410075
- 3. 郑州地铁集团有限公司,河南 郑州 450014
- 折叠
摘要
为预防和控制地铁盾构掘进施工过程中的关键安全风险,并精准判断哪些风险耦合情境是导致事故发生的显著情境,提出改进N-K模型研究地铁盾构掘进安全风险耦合;综合运用文献研究、事故案例、专家访谈等方法,辨识地铁盾构掘进的关键安全风险因素;基于N-K模型提出新的地铁盾构掘进安全风险耦合评估模型,并选用安全事故案例验证该模型的适用性.结果表明:辨识得到地铁盾构掘进关键安全风险因素清单,包括4 类一级风险因素,21 个二级风险因素;地铁盾构掘进施工安全风险随着耦合因素种类的增加而变大,4 因素风险耦合值最高,3 因素风险耦合值次之,双因素风险耦合值最低,作业人员安全意识薄弱和机械故障参与作用的耦合情境更容易发生安全事故.
Abstract
In order to effectively prevent and control the key safety risks in subway shield tunneling construction and accurately judge which risk coupling scenarios were significant ones leading to accidents,an improved N-K model was proposed to study the coupling effect of safety risks in subway shield tunneling.The key safety risks of subway shield tunneling were identified by comprehensively using literature research,accident case analysis and expert interview.Based on the N-K model,a new coupling analysis model of subway shield tunneling safety risk was proposed,and the applicability of the model was verified by a safety accident case.The results show that the list of key safety risk factors of subway shield tunneling is obtained,including 4 first-level risk factors(i.e.,personnel-type,equipment-type,environment-type and management-type safety risks)and 21 second-level risk factors.The safety risk value of subway shield tunneling construction increases with the increase of coupling factors.Safety risk coupling values with four factors are the highest,followed by the coupling values of three factors,and safety risk coupling values with two factors are the lowest.Coupling scenarios with workers'low safety awareness and machine failure participating are more susceptible to safety accidents.
关键词
改进N-K模型/盾构掘进施工/安全风险/风险因素/风险耦合Key words
improved N-K model/subway shield tunneling/safety risk/risk factor/risk coupling引用本文复制引用
基金项目
国家自然科学基金专项(71942006)
河南省高等学校基本科研业务费专项(NSFRF230426)
河南理工大学博士基金(B2022-23)
企业咨询项目(H22-541)
出版年
2024
NETL
NSTL
万方数据