论文部分内容阅读
在拟建高速公路桥梁的初步设计阶段,从桥梁工程的安全风险源评价、多阶段风险评价、关键风险评价指标和风险指标对策措施等多方面着手,结合项目建设条件、工程设计方案、功能要求等方面,开展高速公路桥梁工程安全风险评估研究。选取云南省某高速公路桥梁为项目依托,针对其建设条件风险、施工阶段风险和运营阶段风险共三方面展开讨论,对其进行风险分析、选定风险源、得到评估指标,确定风险等级。结果表明:拟建高速公路桥梁建设和施工条件复杂,运营管理条件相对简单。其中,建设条件风险源众多,风险等级相对较高。针对三方面可能发生的安全风险,提出相应的风险控制保障措施,减轻风险损失,提高工程的安全性。
In the preliminary design phase of the proposed expressway bridge, from the aspects of safety risk source assessment, multi-stage risk assessment, key risk assessment index and risk index countermeasure of bridge construction, etc., combining the project construction conditions, project design scheme, And other aspects, to carry out the highway bridge engineering safety risk assessment study. Based on the bridge project of a highway in Yunnan Province, this paper discusses the construction condition risk, construction stage risk and operation stage risk in three aspects. It analyzes the risk, selects the risk source, obtains the evaluation index and determines the risk grade. The results show that the construction and construction conditions of the proposed expressway bridge are complex and the operation and management conditions are relatively simple. Among them, there are many risk sources for construction conditions and the risk level is relatively high. In view of the possible safety risks in three aspects, we put forward corresponding risk control and safeguard measures to reduce the risk loss and improve the safety of the project.