本规范共分11章和4个附录,主要内容有:总则,术语和符号,基本规定,钻探准备工作,工程地质钻探,水文地质钻探与水井施工,基桩孔和成槽施工,特种钻探,冲洗介质与护壁堵漏,钻探质量,钻探设备使用、维护与拆迁等。
GB50734-2012······1
1 总则······13
2 术语和符号······14
2.1 术语······14
2.2 符号······18
3 基本规定······19
4 钻探准备工作······21
4.1 编制钻探施工······21
4.2 施工场地准备······21
4.3 基台与钻塔安······22
4.4 钻探设备安装······23
4.5 附属设备安装······23
4.6 准备工作检查······24
5 工程地质钻探······25
5.1 钻孔结构设计与钻进方法选择······25
5.2 冲击钻进······26
5.3 回转钻进······26
5.4 地下水位观测······32
5.5 钻孔止水与封孔······32
6 水文地质钻探与水井施工······34
6.1 钻孔结构设计与钻进方法选择······34
6.2 冲击钻进······36
6.3 回转钻进······37
6.4 气动冲击回转钻进······42
6.5 水文地质地下水位观测······43
6.6 成井工艺······43
7 基桩孔和成槽施工······46
7.1 一般规定······46
7.2 冲击钻进······46
7.3 冲抓锥钻进······47
7.4 大直径回转钻进······47
7.5 潜水电钻钻进······49
7.6 螺旋钻进······50
7.7 旋挖钻进······50
7.8 钻孔扩底钴进······51
7.9 钻孔挤扩支盘施工······51
7.10 成槽施工······52
7.11 清孔······53
8 特种钻探······54
8.1 定向钻进······54
8.2 岩心定向钻进······55
8.3 水平孔钻进······55
8.4 水上钻探······57
8.5 孔内爆破······60
9 冲洗介质与护壁堵漏······62
9.1 冲洗介质······62
9.2 护壁堵漏······64
10 钻探质量······66
10.1 岩(土）心、土试样与水试样的采取······66
10.2 勘察孔孔深校正与钻孔弯曲度······69
10.3 供水管井成井质晕······70
10.4 基桩孔成孔质量······70
10.5 成槽质量······71
10.6 原始报表······54
10.7 终孔验收与资料提交······72
11 钻探设备使用、维护与拆迁······73
11.1 钻探设备使用与维护······73
11.2 钻探设备拆迁······73
附录A 岩心钻探岩石可钻性分级表······74
附录B 土的分类······76
附录C 岩心钻探岩石研磨性分级表······77
附录D 土试样质量等级划分······78
本规范用词说明······79
引用标准名录······80
附:条文说明······81
1 总则······85
3 基本规定······86
4 钻探准备工作······88
4.1 编制钻探施工方案······88
4.2 施工场地准备······88
4.3 基台与钻塔安装······88
4.4 钻探设备安装······89
4.5 附属设备安装······89
4.6 准备工作检查······89
5 工程地质钻探······91
5.1 钻孔结构设计与钻进方法选择······91
5.2 冲击钻进······91
5.3 回转钻进······92
5.4 地下水位观测······96
5.5 钻孔止水与封孔······96
6 水文地质钻探与水井施工······97
6.1 钻孔结构设计与钻进方法选择······97
6.2 冲击钻进······97
6.3 回转钻进······99
6.4 气动冲击回转钻进······102
6.6 成井工艺······103
7 基桩孔和成槽施工······105
7.1 一般规定······105
7.2 冲击钻进······105
7.3 冲抓锥钻进······106
7.4 大直径回转钻进······106
7.5 潜水电钻钻进······106
7.6 螺旋钻进······106
7.7 旋挖钻进······107
7.8 钻孔扩底钻进······108
7.9 钻孔挤扩支盘施工······108
7.10 成糟施工······109
7.11 清孔······109
8 特种钻探······111
8.1 定向钻进······111
8.2 岩心定向钻进······112
8.3 水平孔钻进······112
8.4 水上钻探······113
8.5 孔内爆破······115
9 冲洗介质与护壁堵漏······117
9.1 冲洗介质······117
9.2 护壁堵漏······118
10 钻探质量······120
10.1 岩(土)心、土试样与水试样的采取······120
10.2 勘察孔孔深校正与钻孔弯曲度······121
10.3 供水管井成井质量······121
10.4 基桩孔成孔质量······122
10.5 成槽质量······122
10.6 原始报表······122
10.7 终孔验收与资料提交······122
11 钻探设备使用、维护与拆迁······123
11.1 钻探设备使用与维护······123
11.2 钻探设备拆迁······123
