ICS 93.020 P 13 DB45 广 西 壮 族 自 治 区 地 方 标 准 DB 45/T 1696—2018 危岩防治工程技术规范 Technical code for dangerous rockmass stabilization 2018 - 03 - 25 发布 广西壮族自治区质量技术监督局 2018 - 04 - 25 实施 发 布 DB45/T 1696—2018 目 次 前言 ................................................................................ Ⅲ 引言 ................................................................................ IV 1 范围 .............................................................................. 1 2 规范性引用文件 .................................................................... 1 3 术语和定义 ........................................................................ 1 4 危岩分类 .......................................................................... 4 4.1 危岩体规模等级划分 ............................................................ 4 4.2 危岩体类型 .................................................................... 5 4.3 危岩体的破坏形式 .............................................................. 5 5 危岩勘查地质条件复杂程度及防治工程等级划分 ........................................ 6 5.1 危岩勘查地质条件复杂程度 ...................................................... 6 5.2 危岩地质灾害危害程度划分 ...................................................... 6 5.3 危岩防治工程等级划分 .......................................................... 7 5.4 危岩防治工程勘查等级划 ........................................................ 7 6 危岩勘查 .......................................................................... 8 6.1 基本要求 ...................................................................... 8 6.2 危岩调查 ...................................................................... 8 6.3 初步勘查 ...................................................................... 9 6.4 详细勘查 ..................................................................... 10 6.5 施工勘查 ..................................................................... 11 7 危岩稳定性和落石运动分析 ......................................................... 11 7.1 试验 ......................................................................... 11 7.2 危岩稳定性和落石运动分析 ..................................................... 12 8 清除工程 ......................................................................... 12 8.1 基本规定 ..................................................................... 12 8.2 人力锤击楔裂法 ............................................................... 12 8.3 静态破碎法 ................................................................... 12 8.4 爆破法 ....................................................................... 14 8.5 岩块运输 ..................................................................... 15 9 支撑工程 ......................................................................... 15 9.1 基本规定 ..................................................................... 15 9.2 支撑体系设计 ................................................................. 15 9.3 施工 ......................................................................... 16 10 锚固工程 ........................................................................ 16 I DB45/T 1696—2018 10.1 基本规定 ..................................................................... 16 10.2 锚杆（索）设计 ............................................................... 16 10.3 锚杆（索）施工 ............................................................... 18 11 排水工程 ......................................................................... 19 11.1 11.2 11.3 11.4 11.5 基本规定 ..................................................................... 19 地表排水 ..................................................................... 19 危岩体内部排水 ............................................................... 19 防渗封填 ..................................................................... 19 施工 ......................................................................... 19 12 柔性防护网工程 ................................................................... 20 12.1 12.2 12.3 12.4 12.5 12.6 基本规定 ..................................................................... 20 主动防护网 ................................................................... 20 被动防护网 ................................................................... 22 引导防护网 ................................................................... 23 锚杆与基础 ................................................................... 24 施工 ......................................................................... 24 13 防治工程的优化组合 ............................................................... 25 14 脚手架与防护工程 ................................................................. 25 14.1 基本规定 .............................