溶洞地区高速公路桥梁桩基施工风险评价与控制技术研究  

Research on Risk Assessment and Control Technology for Expressway Bridge Pile Foundation Construction in Karst Cave Area

作　　者：韩永利 贺瑞 HAN Yongli;HE Rui(Southwest Sichuan Branch of China Railway City Development and Investment Group Co.,Ltd.,Chengdu 610000,Sichuan,China;China Railway Tunnel Group Road and Bridge Engineering Co.,Ltd.,Tianjin 300000,China)

机构地区：[1]中铁城市发展投资集团有限公司川西南分公司,四川成都610000 [2]中铁隧道局集团路桥工程有限公司,天津300000

出　　处：《工程技术研究》2024年第8期137-139,共3页Engineering and Technological Research

摘　　要：为有效控制和降低溶洞地区高速公路桥梁桩基的施工风险,保障施工顺利进行,文章基于改进的作业条件危险性评价法(LEC),对溶洞地区高速公路桥梁桩基的施工进行风险评价,并依托具体的施工案例,系统分析了溶洞地区高速公路桥梁桩基施工过程中的潜在问题,明确了各类施工危险性分级。同时结合研究区工程、水文地质条件及喀斯特发育特征,提出了溶洞相关工况处理技术及施工风险控制方法。In order to effectively control and reduce the construction risk of expressway bridge pile foundation in karst cave area and ensure the smooth progress of construction,this paper evaluates the construction risk of expressway bridge pile foundation in karst cave area based on the improved likelihood consequence exposure(LEC)method.Based on the specific construction cases,the potential problems in the construction process of expressway bridge pile foundation in karst cave area are systematically analyzed,and the classification of various construction hazards is clarified.At the same time,combined with the engineering,hydrogeological conditions and karst development characteristics of the study area,the treatment technology and construction risk control method of karst cave related working conditions are put forward.

关 键 词：溶洞地区 桥梁桩基 改进LEC法 施工风险评价 施工风险控制 

分 类 号：U447[建筑科学—桥梁与隧道工程]