中孔泄洪洞进口及闸井段石方开挖及支护专项施工方案方案编号：[2015]019号编制人：审核人：审批人：目录1工程概述.............................................................11.1工程项目概述.....................................................11.2工程地质.........................................................11.3开挖与支护工作内容...............................................11.4石方明挖、支护注意事项...........................................12施工布置.............................................................22.1施工道路布置.....................................................22.2施工风、水、电、布置.............................................22.3弃渣场...........................................................33施工工艺流程.........................................................33.1石方明挖工程施工工艺流程.........................................33.2支护工程施工工艺要求流程.........................................54施工测量.............................................................54.1测量控制系统.....................................................54.2石方施工测量.....................................................55施工工艺及施工方案...................................................65.1石方开挖工.......................................................65.2边坡支护........................................................166石方开挖及支护施工进度计划..........................................266.1石方开挖支护施工进度计划........................................266.2支护施工进度计划................................................267施工机械配置........................................................267.1石方明挖施工机械设备配置........................................267.2边坡支护机械配置................................................278质量控制措施........................................................288.1开挖质量控制措施................................................288.2支护工程质量控制措施............................................299安全控制措施........................................................309.1石方开挖安全技术控制措施........................................309.2支护技术安全措施................................................339.3高边坡施工安全措施..............................................359.4临边、洞口及高处作业安全防护技术措施...........................359.5个人安全防护....................................................369.6夜间施工措施....................................................3610环境保护措施........................................................3610.1扬尘控制.......................................................3610.2加强污水废水的处理.............................................3711资源配置计划........................................................3711.1主要施工机械配置见表11-1、11-2................................3711.2劳动力资源配置计划.............................................381工程概述1.1工程项目概述中孔泄洪洞进口及闸井段开挖部位主要有进口引渠和闸井部位石方明挖。主要工程量主要包括：进口引渠段和闸井段石方明挖，开挖工程量有石方明挖56029m3。中孔泄洪洞进口及闸井支护工程类型主要包括：随机或系统锚杆支护、锚索、挂网钢筋、喷射混凝土支护工程。支护工程锚杆约为2852根砂浆锚杆，锚杆长4.5m。喷射混凝土有1147m3，挂网钢筋45T，锚索53束。1.2工程地质明渠、有压洞及闸井段（0-174.7～0+144m）：自然边坡40°～70°，基岩裸露，岩性为灰岩、白云质...
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