文档介绍：
PBA洞桩法施工方案 - 图文
目 录
1 编制依据 ........................................................................................................................ 10 组织机构 .................................................................................................................... 10 PBA洞桩法施工步序 .................................................................................................. 11
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施工打算 .................................................................................................................... 15 .............................................................................................................. 15 ................................................................................................... 16 ....................................................................................................... 16 “四通一平” ............................................................................................. 16 导洞及横导洞马头门施工 ........................................................................................... 17 ................................................................................................... 17 ................................................................................................... 17 ................................................................................................... 18 ............................................................................................ 20 导洞及横导洞开挖及支护 ........................................................................................... 20 ..................................................................................... 20 车站三层段导洞土方开挖 .................................................................................... 21 .............