DB42/T 1498-2019 公路工程地质钻探技术规程
简介
DB42/T 1498-2019
公路工程地质钻探技术规程
Technical specification for geological drilling of highway engineering
（报批稿）
2019-04-28实施
2019-03-28发布 目 次 前言 ................................................................................1 引言 ..................................................................................1 1 范围 .................................................................................1 2 规范性引用文件 .......................................................................1 3 术语与定义和符号 .....................................................................1 3.1 术语与定义 .......................................................................1 3.2 符号 .............................................................................2 4 总则 .................................................................................2 5 钻探准备工作 .........................................................................3 5.1 作业指导书 .......................................................................3 5.2 孔位测量 .........................................................................3 5.3 钻机选型 .........................................................................3 5.4 场地的三通一平 ...................................................................4 5.5 钻探设备安装 .....................................................................4 6 钻进方法 .............................................................................4 6.1 一般规定 .........................................................................4 6.2 回转钻进 .........................................................................5 6.3 冲击钻进 .........................................................................6 6.4 冲击回转钻进 .....................................................................6 7 常规钻探 .............................................................................6 7.1 一般规定 .........................................................................6 7.2 黏性土、粉土地层 .................................................................6 7.3 砂土地层 .........................................................................7 7.4 碎石土地层 .......................................................................7 7.5 岩石地层 .........................................................................7 7.6 不良地质路段 .....................................................................7 7.7 特殊性岩土 .......................................................................8 7.8 堤防钻探 .........................................................................9 8 水上钻探 .............................................................................9 8.1 一般规定 .........................................................................9 8.2 钻探与成孔 .......................................................................9 9 水平及斜孔钻探 ......................................................................10 9.1 一般规定 ........................................................................10 9.2 钻探与成孔 ......................................................................10 10 水文地质钻探 .......................................................................11 10.1 一般规定 .......................................................................11 10.2 钻探与成孔 .....................................................................11 10.3 简易水文地质观测 ............................................................... 12 11 护壁堵漏........................................................................... 12 11.1 一般规定....................................................................... 12 11.2 护壁堵漏方法 ................................................................... 12 12 钻探质量........................................................................... 13 12.1 一般规定....................................................................... 13 12.2 钻孔弯曲与孔深 ................................................................. 14 12.3 岩芯采取....................................................................... 14 12.4 岩土水试样的采取 ............................................................... 15 12.5 地下水位量测 ................................................................... 15 12.6 测试钻孔要求 ................................................................... 16 12.7 钻探现场记录 ................................................................... 16 12.8 封孔回填....................................................................... 17 13 钻探安全要求 ....................................................................... 17 13.1 一般规定....................................................................... 17 13.2 场地安全要求 ................................................................... 18 13.3 人员安全要求 ................................................................... 18 13.4 钻探安全操作 ................................................................... 18 13.5 自然灾害防护 ................................................................... 18 13.6 既有公路钻探 ................................................................... 19 13.7 水上钻探安全要求 ............................................................... 19 13.8 孔内事故预防和处理 ............................................................. 19 附录 A（规范性附录） 岩土可钻性分级 .................................................. 21 附录 B（规范性附录） 不同等级土试样的取样工具适宜性................................... 22 附录 C（规范性附录） 取芯钻具种类 .................................................... 24 附录 D（资料性附录） 回转钻进参数 .................................................... 25 附录 E（规范性附录） 泥浆性能指标及测定方法........................................... 29 附录 F（资料性附录） 钻孔现场记录表 .................................................. 30 附录 G（资料性附录） 钻孔岩芯编录表 .................................................. 31 本规程用词说明........................................................................ 32
DB42/T 1498-2019
公路工程地质钻探技术规程
Technical specification for geological drilling of highway engineering
（报批稿）
2019-04-28实施
2019-03-28发布 目 次 前言 ................................................................................1 引言 ..................................................................................1 1 范围 .................................................................................1 2 规范性引用文件 .......................................................................1 3 术语与定义和符号 .....................................................................1 3.1 术语与定义 .......................................................................1 3.2 符号 .............................................................................2 4 总则 .................................................................................2 5 钻探准备工作 .........................................................................3 5.1 作业指导书 .......................................................................3 5.2 孔位测量 .........................................................................3 5.3 钻机选型 .........................................................................3 5.4 场地的三通一平 ...................................................................4 5.5 钻探设备安装 .....................................................................4 6 钻进方法 .............................................................................4 6.1 一般规定 .........................................................................4 6.2 回转钻进 .........................................................................5 6.3 冲击钻进 .........................................................................6 6.4 冲击回转钻进 .....................................................................6 7 常规钻探 .............................................................................6 7.1 一般规定 .........................................................................6 7.2 黏性土、粉土地层 .................................................................6 7.3 砂土地层 .........................................................................7 7.4 碎石土地层 .......................................................................7 7.5 岩石地层 .........................................................................7 7.6 不良地质路段 .....................................................................7 7.7 特殊性岩土 .......................................................................8 7.8 堤防钻探 .........................................................................9 8 水上钻探 .............................................................................9 8.1 一般规定 .........................................................................9 8.2 钻探与成孔 .......................................................................9 9 水平及斜孔钻探 ......................................................................10 9.1 一般规定 ........................................................................10 9.2 钻探与成孔 ......................................................................10 10 水文地质钻探 .......................................................................11 10.1 一般规定 .......................................................................11 10.2 钻探与成孔 .....................................................................11 10.3 简易水文地质观测 ............................................................... 12 11 护壁堵漏........................................................................... 12 11.1 一般规定....................................................................... 12 11.2 护壁堵漏方法 ................................................................... 12 12 钻探质量........................................................................... 13 12.1 一般规定....................................................................... 13 12.2 钻孔弯曲与孔深 ................................................................. 14 12.3 岩芯采取....................................................................... 14 12.4 岩土水试样的采取 ............................................................... 15 12.5 地下水位量测 ................................................................... 15 12.6 测试钻孔要求 ................................................................... 16 12.7 钻探现场记录 ................................................................... 16 12.8 封孔回填....................................................................... 17 13 钻探安全要求 ....................................................................... 17 13.1 一般规定....................................................................... 17 13.2 场地安全要求 ................................................................... 18 13.3 人员安全要求 ................................................................... 18 13.4 钻探安全操作 ................................................................... 18 13.5 自然灾害防护 ................................................................... 18 13.6 既有公路钻探 ................................................................... 19 13.7 水上钻探安全要求 ............................................................... 19 13.8 孔内事故预防和处理 ............................................................. 19 附录 A（规范性附录） 岩土可钻性分级 .................................................. 21 附录 B（规范性附录） 不同等级土试样的取样工具适宜性................................... 22 附录 C（规范性附录） 取芯钻具种类 .................................................... 24 附录 D（资料性附录） 回转钻进参数 .................................................... 25 附录 E（规范性附录） 泥浆性能指标及测定方法........................................... 29 附录 F（资料性附录） 钻孔现场记录表 .................................................. 30 附录 G（资料性附录） 钻孔岩芯编录表 .................................................. 31 本规程用词说明........................................................................ 32
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