基于模糊可拓模型的拼宽桥梁施工安全风险评估  

Safety Risk Assessment of Bridge Construction Based on Fuzzy Extension Model

作　　者：陈礼彪 梁乾敏 卢兴利[3] CHEN Li-biao;LIANG Qian-min;LU Xing-li(Fujian Expressway Group Co.Ltd.,Fuzhou 350000,China;Chang'an University,Xi'an 710064,China;Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430000,China)

机构地区：[1]福建省高速公路集团公司,福州350000 [2]长安大学,西安710064 [3]中国科学院武汉岩土力学研究所,武汉430000

出　　处：《工程建设与设计》2020年第23期192-195,共4页Construction & Design for Engineering

摘　　要：为有效控制拼宽桥梁工程施工风险,以两侧拼宽的苦竹山大桥为例,进行施工安全风险评估。结合拼宽桥梁施工特点,建立了拼宽桥梁的施工安全风险指标体系,利用模糊可拓评价模型确定各评估指标的量化值及关联度,运用熵权法计算得各评估指标权重,最后通过对事故可能性和事故严重程度进行综合评价,确定全桥风险等级实例应用结果表明:基于模糊可拓评价模型的评估方法,结果合理可靠,值得进一步推广使用。In order to effectively control the construction risk of widening bridge,the construction safety risk assessment of Kuzhushan bridge on both sides is carried out.Combined with the construction characteristics of the widening bridge,the construction safety risk index system of the widening bridge is established.The quantitative value and correlation degree of each evaluation index are determined by the fuzzy extension evaluation model,and the weight of each evaluation index is calculated by the entropy weight method.Finally,the risk level of the whole bridge is determined through the comprehensive evaluation of the possibility and severity of the accident.The application results show that the evaluation method based on fuzzy extension evaluation model is reasonable and reliable,which is worthy of further promotion.

关 键 词：拼宽桥梁 施工安全风险评估 模糊可拓评价模型 熵权法 

分 类 号：TU443.3[建筑科学—岩土工程]