跨线桥梁装配式防护棚安拆施工与安全评估  

Construction and safety assessment of assembly type protective shed for cross line beams during installation and dismantling

作　　者：刘兴蔚 林尚勤 陈波[1] 俞祥杰 Liu Xingwei;Lin Shangqin;Chen Bo;Yu Xiangjie(Hangzhou Transportation Engineering Group Co.,Ltd.,Hangzhou Zhejiang 310013,China;Zhejiang Institute of Communications,Hangzhou Zhejiang 311112,China)

机构地区：[1]杭州市交通工程集团有限公司,浙江杭州310013 [2]浙江交通职业技术学院,浙江杭州311112

出　　处：《山西建筑》2025年第6期142-145,195,共5页Shanxi Architecture

基　　金：2023年浙江省教育厅一般科研项目:节理岩体爆破振动衰减规律及衰减参数精准量化研究(课题编号:922411KY0103)。

摘　　要：装配式防护棚结构具有模块化程度高、施工简便、施工质量稳定、工程适用性强等优点,在跨线桥梁施工中得到了广泛应用。根据某公路改建工程跨线桥梁建设的施工特点,优化设计装配式防护棚结构,并采用LEC评价法对其安拆施工工艺进行安全评估。结果表明:装配式防护棚结构的模块化加工程度高,可大幅缩短防护棚施工工期,降低装配式防护棚施工对周边交通影响程度;在防护棚安拆施工中,通过对交通事故、高处坠落、触电等施工安全危险源进行常态化监管,可有效保障跨线施工的安全性。The prefabricated protective shed structure has the advantages of high modularization,convenient construction,stable construction quality,and strong engineering applicability,and has been widely used in the construction of overpass bridges.According to the construction characteristics of the overpass bridge construction in a highway reconstruction project,the prefabricated protective shed structure was optimized and designed,and the LEC evaluation method was used to assess the safety of its installation and removal process.The results showed that the prefabricated protective shed structure has high modularization processing degree,which can significantly shorten the construction period of the protective shed and reduce the impact of the prefabricated protective shed construction on the surrounding traffic.During the installation and removal of the protective shed,through the normalization supervision of construction safety hazards such as traffic accidents,falling from height,electric shock,etc.,the safety of overpass construction can be effectively guaranteed.

关 键 词：跨线桥梁 装配式防护棚 安拆施工 LEC评价法 

分 类 号：TU997[建筑科学—市政工程] U443.8[建筑科学—桥梁与隧道工程]