预应力张拉和压浆技术总结.doc

word完美格式 精心整理 学习帮手 预应力张拉及压浆技术总结 二〇一一年十月 目 录 TOC \o "1-3" \h \z \u HYPERLINK \l "_Toc341631155" 1.工程概况 PAGEREF _Toc341631155 \h 1 HYPERLINK \l "_Toc341631156" 2.预应力施工设计要点 PAGEREF _Toc341631156 \h 1 HYPERLINK \l "_Toc341631157" 3.工程数量及张拉设备规格 PAGEREF _Toc341631157 \h 1 HYPERLINK \l "_Toc341631158" 4.后张法预应力张拉施工 PAGEREF _Toc341631158 \h 2 HYPERLINK \l "_Toc341631159" 4.1后张法工艺流程 PAGEREF _Toc341631159 \h 2 HYPERLINK \l "_Toc341631160" 4.2锚下垫板、螺旋筋预埋 PAGEREF _Toc341631160 \h 2 HYPERLINK \l "_Toc341631161" 4.3钢绞线的下料、编束和穿束 PAGEREF _Toc341631161 \h 2 HYPERLINK \l "_Toc341631162" 4.4张拉前的检查工作 PAGEREF _Toc341631162 \h 3 HYPERLINK \l "_Toc341631163" 4.5操作要点及施工工艺 PAGEREF _Toc341631163 \h 3 HYPERLINK \l "_Toc341631164" 4.5.1操作要点 PAGEREF _Toc341631164 \h 3 HYPERLINK \l "_Toc341631165" 4.5.2施工工艺 PAGEREF _Toc341631165 \h 4 HYPERLINK \l "_Toc341631166" 4.6张拉程序 PAGEREF _Toc341631166 \h 4 HYPERLINK \l "_Toc341631167" 4.7预应力配套张拉机具的选定及配套数量 PAGEREF _Toc341631167 \h 5 HYPERLINK \l "_Toc341631168" 4.7.1圆锚张拉机的选用 PAGEREF _Toc341631168 \h 5 HYPERLINK \l "_Toc341631169" 4.7.2张拉机具数量表 PAGEREF _Toc341631169 \h 6 HYPERLINK \l "_Toc341631170" 4.7.3千斤顶的标定和压力表读数的确定 PAGEREF _Toc341631170 \h 6 HYPERLINK \l "_Toc341631171" 4.7.4波纹管内径的确定 PAGEREF _Toc341631171 \h 6 HYPERLINK \l "_Toc341631172" 4.7张拉注意事项 PAGEREF _Toc341631172 \h 6 HYPERLINK \l "_Toc341631173" 5.真空辅助压浆施工 PAGEREF _Toc341631173 \h 7 HYPERLINK \l "_Toc341631174" 5.1孔道压浆的重要性 PAGEREF _Toc341631174 \h 7 HYPERLINK \l "_Toc341631175" 5.2真空辅助压浆特点 PAGEREF _Toc341631175 \h 7 HYPERLINK \l "_Toc341631176" 5.3施工工艺原理、流程及操作要点 PAGEREF _Toc341631176 \h 7 HYPERLINK \l "_Toc341631177" 5.4施工工艺流程 PAGEREF _Toc341631177 \h 8 HYPERLINK \l "_Toc341631178" 5.5准备工作 PAGEREF _Toc341631178 \h 9 HYPERLINK \l "_Toc341631179" 5.5.1压浆前的准备工作 PAGEREF _Toc341631179 \h 9 HYPERLINK \l "_Toc341631180" 5.5.2灌浆准备工作 PAGEREF _Toc341631180 \h 9 HYPERLINK \l "_Toc341631181" 5.5.3水泥浆的拌制 PAGEREF _Toc341631181 \h