第 3 部分：变电土建 土方开挖作业指导书 编码：BDTJ-ZW-01 作业指导书签名页 项目名称 220kV 机遇输变电工程总承包 作业内容 土方开挖作业指导书 批 准 年 月 日 审 核 年 月 日 编 写 年 月 日 注 目 次 1 适用范围 ···················································································································································· 3 2 编写依据 ···················································································································································· 3 3 作业流程 ···················································································································································· 3 4 工作前安全风险辨析及控制措施 ·············································································································· 4 5 作业准备 ·······································································
