文档介绍：目录工程概况..............................................................................................................错...误!未定义书签。总体施工方案........................................................................................................错...误!未定义书签。位置选择依据.....................................................................................................错...误!未定义书签。总体方案.............................................................................................................错...误!未定义书签。主要参数及工程数量...............................................................................................3洞身参数................................................................................................................3支护参数⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯....................................................................4主要工程数量⋯⋯⋯⋯⋯⋯⋯⋯⋯....................................................................5施工总体布置...........................................................................................................5临时工程................................................................................................................5施工场地布置........................................................................................................6工期目标................................................................................................................7人员安排................................................................................................................7机械设备................................................................................................................85施工方法...................................................................................................................8洞口段施工............................................................................................................8超前支护................................................................................................................8小导管施工..................................................................