【大坝土石方开挖施工方案】 土石方开挖的施工方案.docx

【大坝土石方开挖施工方案】土石方开挖的施工方案目录 1编制依据及编制原则..................................................................................................32工程概述......................................................................................................................3施工范围................................................................................................................3工程地质条件........................................................................................................3施工布置................................................................................................................3主要工程量............................................................................................................43开挖程序和方法..........................................................................................................5开挖施工程序........................................................................................................5土石方施工方法....................................................................................................64大坝及放空洞、取水洞进出口开挖..........................................................................7大坝及放空洞、取水洞开挖施工分区分层........................................................7土石方明挖............................................................................................................85支护工程....................................................................................................................12施工布置..............................................................................................................12施工程序..............................................................................................................12锚杆施工..............................................................................................................13喷护施工..............................................................................................................146施工布置............................................................................