ICS 91.200 P01/09 DB50 重庆市地方标准 DB 50/T 989—2020 地质灾害治理工程施工技术规范 Technicalspecificationforconstructionofgeologicaldisastercontrolproject 2020-04-10发布2020-06-01实施 重庆市市场监督管理局发布 DB50/T 989—2020 目次 前言..........................................................................................................................................................III 1范围 ................................................................................................................................................................1 2规范性引用文件 ............................................................................................................................................1 3术语和定义 ....................................................................................................................................................1 4施工准备 ........................................................................................................................................................2 4.1一般规定 ................................................................................................................................................3 4.2临时设施 ................................................................................................................................................3 4.3施工资源配置 ........................................................................................................................................3 4.4测量工作 ................................................................................................................................................4 5土石方工程 ....................................................................................................................................................4 5.1一般规定 ................................................................................................................................................4 5.2削方减载 ................................................................................................................................................4 5.3回填反压 ................................................................................................................................................6 5.4基槽开挖 ................................................................................................................................................8 5.5坑槽填土 .....................................................................................................................