川河路下穿机场高速公路桥施工方案第PAGE13页共NUMPAGES83页目录TOC\o"1-2"\h\z\uHYPERLINK\l"_Toc415755191"一、工程综合概况PAGEREF_Toc415755191\h3HYPERLINK\l"_Toc415755192"1.1桥梁工程设计概要PAGEREF_Toc415755192\h3HYPERLINK\l"_Toc415755193"1.2地质概况PAGEREF_Toc415755193\h3HYPERLINK\l"_Toc415755194"1.3工程施工条件PAGEREF_Toc415755194\h4HYPERLINK\l"_Toc415755195"1.4编制说明PAGEREF_Toc415755195\h7HYPERLINK\l"_Toc415755196"二、主要工程数量PAGEREF_Toc415755196\h8HYPERLINK\l"_Toc415755197"三、工程重点、难点PAGEREF_Toc415755197\h9HYPERLINK\l"_Toc415755198"四、施工组织及总体部署PAGEREF_Toc415755198\h9HYPERLINK\l"_Toc415755199"4.1工程目标PAGEREF_Toc415755199\h9HYPERLINK\l"_Toc415755200"4.2施工组织机构PAGEREF_Toc415755200\h10HYPERLINK\l"_Toc415755201"4.3技术准备工作PAGEREF_Toc415755201\h10HYPERLINK\l"_Toc415755202"4.4生产准备工作PAGEREF_Toc415755202\h11HYPERLINK\l"_Toc415755203"五、施工场地的规划与平面布置PAGEREF_Toc415755203\h11HYPERLINK\l"_Toc415755204"六、K3+541.335桥梁工程主要施工方案PAGEREF_Toc415755204\h14HYPERLINK\l"_Toc415755205"6.1主要工程施工顺序PAGEREF_Toc415755205\h14HYPERLINK\l"_Toc415755206"6.2桥梁工程施工总体施工方法的选择PAGEREF_Toc415755206\h14HYPERLINK\l"_Toc415755207"6.3桩基础施工PAGEREF_Toc415755207\h15HYPERLINK\l"_Toc415755208"6.4基坑支护PAGEREF_Toc415755208\h22HYPERLINK\l"_Toc415755209"6.5桥台施工PAGEREF_Toc415755209\h26HYPERLINK\l"_Toc415755210"6.6立柱施工PAGEREF_Toc415755210\h28HYPERLINK\l"_Toc415755211"6.7现空心梁板施工PAGEREF_Toc415755211\h29HYPERLINK\l"_Toc415755212"6.8预应力张拉、压浆、封端PAGEREF_Toc415755212\h34HYPERLINK\l"_Toc415755213"6.9桥面铺装及防水层施工PAGEREF_Toc415755213\h37HYPERLINK\l"_Toc415755214"6.10伸缩缝施工PAGEREF_Toc415755214\h37HYPERLINK\l"_Toc415755215"6.11施工便道PAGEREF_Toc415755215\h38HYPERLINK\l"_Toc415755216"6.12桥梁工程难点、重点项目解决方案PAGEREF_Toc415755216\h41HYPERLINK\l"_Toc415755217"七、施工进度计划PAGEREF_Toc415755217\h41HYPERLINK\l"_Toc415755218"7.1工期PAGEREF_Toc415755218\h41HYPERL