现浇箱梁整改拆除方案[合集5篇].docx

现浇箱梁整改拆除方案[合集5篇]

第一篇：现浇箱梁整改拆除方案红岩村桥隧PPPP项目五台山立交工程（五台山立交HH匝道桥现浇箱梁第22段）拆除专项施工方案编制：审核：审批：中建八局红岩村桥隧PPPP项目项目经理部二〇一七年六月目录第一章工程概况.................................................................................................11.1、工程概况与特点.......................................................................................11.2工程内容.......................................................................................................21.3拆除方案........................................................................................................3第二章编制依据............................................................................................42.1技术标准.......................................................................................................42.2编制原则.......................................................................................................7第三章施工计划...............................................................................................73.1进度计划.......................................................................................................73.2材料与设备计划.........................................................................................8第四章施工工艺技术.................................................................................104.1箱梁总体拆除顺序...................................................................................104.2施工工艺及步骤........................................................................................204.3拆除步骤......................................................................................................204.4吊装作业.....................................................................................................254.5吊装布臵与作业........................................................................................29第一章工程概况1.1、工程概况与特点本桥为城市次干线道路桥梁工程，位于五台山立交位于重庆市九龙坡区，石杨路与龙腾路交汇处，起点里程桩号HK0+163.688，终点里程桩号HK0+308.688。桥梁全长145米。该桥建成后为龙腾路至石杨路交通转换专线。H匝道桥跨布臵为（5×28m）预应力后张法连续箱梁，桥墩采用钢筋混凝土矩形桥墩，基础采用直径2.5m的单桩基础，桩长在17~21米之间不等，桥台采用重力式桥台，人工开挖形成