嘎堆水电站引水隧洞施工支洞专项施工方案

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1、西藏自治区索朗沟嘎堆水电站土建、机电及金属结构安装工程施工（合同编号：KT/GD/SG-2014-001）引水隧洞施工支洞专项施工方案中国水利水电第一工程局有限公司嘎堆水电站工程项目经理部2015年6月7日I批准：审核：编制：II目录1工程概况..........................................................................................................11.1概述..................................................

2、....................................................11.2工程地质条件......................................................................................22编制依据..........................................................................................................23施工布置..................

3、........................................................................................23.1施工用风、水、电布置......................................................................23.1.1施工用风布置..........................................................................23.1.2施工用水布置..............

4、............................................................23.1.3施工用电布置..........................................................................33.2施工期通风及排水..............................................................................33.3施工道路及弃渣场布置..................................

5、....................................44主要施工方法..................................................................................................44.1土石方明挖施工方法..........................................................................44.2石方洞挖施工方法...........................................

6、...................................54.2.1施工方案概述..........................................................................54.2.2施工方法..................................................................................64.3支护施工方法.............................................................

7、.........................74.3.1支护施工时间安排..................................................................84.3.2锚杆施工..................................................................................84.3.3挂钢筋网喷混凝土施工..........................................................94.3.4钢支撑（或格栅

8、钢架）.........