广梧高速路基施工工艺指南.docx

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广梧高速施工工艺指南（试行）
路 基 工 程
中铁九局（集团）有限公司
2007年10月
1
目 录
1、地基处理··································································3
、换填（包括原地面处理）····················································3
、砂（碎石）垫层施工（含土工格栅铺设）········································5
、堆载预压································································7
、强夯···································································15
、强夯置换碎石桩·························································17
、冲击压实·······························································20
、搅拌桩·································································22
、旋喷桩·································································25
、CFG桩·····································
2
····························28
、刚性桩网结构··························································34
、刚性桩板结构··························································37
、岩溶地基处理·························································40
、水塘地基处理·························································43
2、路基填筑································································45
、A、B组填料填筑·························································45
、级配碎石填筑···························································46
、沥青混凝土·····························································52
3、路堑开挖·································································56
4、过渡段···································································58
3
、级配碎石过渡段·························································58
、渐变混凝土刚性过渡段···················································61
5、支挡结构和边坡防护·······················································64
、边坡防护·······························································64
、立体植被护坡网内喷播植草··············································64
、挂网喷混植生·················