大西客专标钻孔桩施工工艺性试验技术方案.docVIP

大西铁路客运专线6标仁义河特大桥钻孔桩工艺性试验方案 PAGE TOC \o 1-3 \h \z \u HYPERLINK \l _Toc262054346 1.试验目的 PAGEREF _Toc262054346 \h 1 HYPERLINK \l _Toc262054347 2.试验位置 PAGEREF _Toc262054347 \h 1 HYPERLINK \l _Toc262054348 3.资源配置安排 PAGEREF _Toc262054348 \h 1 HYPERLINK \l _Toc262054349 4.试验施工工艺流程 PAGEREF _Toc262054349 \h 1 HYPERLINK \l _Toc262054350 5.试验施工 PAGEREF _Toc262054350 \h 2 HYPERLINK \l _Toc262054351 5.1施工准备 PAGEREF _Toc262054351 \h 2 HYPERLINK \l _Toc262054352 5.1.1桩位测量放样 PAGEREF _Toc262054352 \h 2 HYPERLINK \l _Toc262054353 5.1.2场地平整与就位 PAGEREF _Toc262054353 \h 3 HYPERLINK \l _Toc262054354 5.1.3护筒埋设 PAGEREF _Toc262054354 \h 3 HYPERLINK \l _Toc262054355 5.1.4泥浆的制备及循环净化 PAGEREF _Toc262054355 \h 3 HYPERLINK \l _Toc262054356 5.2钻孔 PAGEREF _Toc262054356 \h 4 HYPERLINK \l _Toc262054357 5.2.1冲击钻进 PAGEREF _Toc262054357 \h 4 HYPERLINK \l _Toc262054358 5.2.2钻孔中注意事项 PAGEREF _Toc262054358 \h 6 HYPERLINK \l _Toc262054359 5.3成孔检查 PAGEREF _Toc262054359 \h 7 HYPERLINK \l _Toc262054360 5.4清孔 PAGEREF _Toc262054360 \h 7 HYPERLINK \l _Toc262054361 5.5钢筋笼加工及吊放 PAGEREF _Toc262054361 \h 8 HYPERLINK \l _Toc262054362 5.6二次清空工艺 PAGEREF _Toc262054362 \h 10 HYPERLINK \l _Toc262054363 5.7灌注水下混凝土 PAGEREF _Toc262054363 \h 11 HYPERLINK \l _Toc262054364 5.7.1混凝土原材料 PAGEREF _Toc262054364 \h 11 HYPERLINK \l _Toc262054365 5.7.2混凝土配合比 PAGEREF _Toc262054365 \h 12 HYPERLINK \l _Toc262054366 5.7.3混凝土拌制和运输 PAGEREF _Toc262054366 \h 12 HYPERLINK \l _Toc262054367 5.7.4混凝土灌注 PAGEREF _Toc262054367 \h 12 HYPERLINK \l _Toc262054368 6.试验成果 PAGEREF _Toc262054368 \h 16 HYPERLINK \l _Toc262054369 7.质量控制措施 PAGEREF _Toc262054369 \h 16 HYPERLINK \l _Toc262054370 7.1质量控制与检验 PAGEREF _Toc262054370 \h 16 HYPERLINK \l _Toc262054371 7.1.1桩位控制 PAGEREF _Toc262054371 \h 16 HYPERLINK \l _Toc262054372 7.1.2桩斜控制 PAGEREF _Toc262054372 \h 17 HYPERLINK \l _Toc262054373 7.1.3桩径控制 PAGEREF _Toc262054373 \h 17 HYPERLINK \l _Toc262054374 7.1.4桩长控制 PAGEREF _Toc262054374 \h 17 HYPERLINK \l _