清远抽水蓄能电站下水库大坝工程合同编号：合同编号：(PGC09G014)大坝开挖施工方案广东水电二局股份有限公司清远抽水蓄能电站工程项目经理部2010年4月广东清远抽水蓄能电站下水库大坝工程大坝开挖施工方案审批：罗兆涛校核：崔恩博编写：谢震目11.11.21.2.1录概述....................................................................................................4概述编制目的........................................................................................4工程概况........................................................................................4工程简述......................................................................................................422.1大坝基础开挖施工程序和施工方法...............................................4施工布置........................................................................................4施工道路的布置..........................................................................................5开挖风、水、电布置..................................................................................52.1.12.1.22.22.2.12.2.22.2.3施工程序........................................................................................6施工程序安排原则......................................................................................6施工开挖分区、分层..................................................................................6施工开挖程序..............................................................................................72.32.3.12.3.22.3.3施工方法........................................................................................8场地清理......................................................................................................8覆盖土层开挖..............................................................................................8石方明挖......................................................................................................92.433.13.23.3工艺流程......................................................................................13质量保证措施.................................................................................13土方明挖质量保证措施........................