编号：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: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...................................................23、技术要求..............................................................24、施工流程及方法........................................................24。1、施工程序.......................................................24.2、工艺流程........................................................35、施工要求..............................................................45.1、施工准备........................................................45。2、施工工艺.......................................................45.2.1锚口清理、穿束.............................................55.2。2千斤顶吊架和锚具、夹片安装................................55.2。3限位板、千斤顶及工具锚、工具夹片的安装....................55.2.4油表、油泵和千斤顶的连接...................................55。2。5张拉前检查...............................................65.2.6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张拉钢绞线伸长率偏差过大.................................115。3.7预应力损失过大...........................................115。3.8预应力孔道注浆不密实.....................................125.3。9预应力孔道灌不进浆.......................................126、劳动组织.............................................................126.1、劳动力组织.....................................................126。2、人员配置......................................................127、材料要求.............................................................138、设备机具要求.........................................................139、质量控制及检验.......................................................1310、安全环保要求........................................................1410。1、施工安全措施.................................................1410.2、环保要求......................................................14附件:..................................................................14预制T梁预应力施工作业指导书1、编制目的为了更好地指导现场施工生产，规范预应力张拉、压浆作业行为，确保预应力施工质量。2、适用范围本作业指导书适用于中铁二局惠兴公路惠镇段第九合同段内弄林特大桥、坝雨大桥、红纳河特大桥、梨树湾大桥、A匝道桥二的预制T梁预应力施工，A匝道桥一和两座连续刚构的预应力施工可参照执行。3、编制依据1）本合同段《两阶段施工图设计》2）《公路桥涵施工技术规范》(JTG/TF50—2011）3）《公路桥涵施工技术规范》（JTJ041-2000）3、作业准备3.1、内业技术准备（1）在开工前...
