下载后可任意编辑中铁二局惠兴高速公路惠水至镇宁段第九合同段预制 T 梁预应力施工作业指导书编制： 复核： 审核： 编号：下载后可任意编辑中铁二局股份有限公司惠兴高速惠水至镇宁段第九合同段项目经理部二〇一一年十月下载后可任意编辑目 录1、适用范围..............................................................12、作业准备..............................................................12.1、内业技术准备....................................................12.2、外业技术准备....................................................13、技术要求..............................................................14、施工流程及方法........................................................14.1、施工程序........................................................24.2、工艺流程........................................................25、施工要求..............................................................25.1、施工准备........................................................25.2、施工工艺........................................................35.2.1 锚口清理、穿束..............................................35.2.2 千斤顶吊架和锚具、夹片安装..................................35.2.3 限位板、千斤顶及工具锚、工具夹片的安装......................45.2.4 油表、油泵和千斤顶的连接....................................55.2.5 张拉前检查..................................................55.2.6 张拉........................................................65.2.7 封锚........................................................75.2.8 压浆........................................................75.3、预应力施工常见问题及处理措施....................................85.3.1 锚垫板与孔道轴线不垂直或锚垫板中心偏离孔道轴线..............85.3.2 锚头下锚板处混凝土变形开裂..................................95.3.3 滑丝与断丝..................................................95.3.4 波纹管线形与设计偏差较大...................................105.3.5 波纹管漏浆堵管.............................................105.3.6 张拉钢绞线伸长...
