中华人民共和国住房和城乡建设部公告

前言

1　总　　则

2　术语和符号

• 2.1　术　　语

• 2.2　符　　号

3　基本规定

4　钻探准备工作

• 4.1　编制钻探施工方案

• 4.2　施工场地准备

• 4.3　基台与钻塔安装

• 4.4　钻探设备安装

• 4.5　附属设备安装

• 4.6　准备工作检查

5　工程地质钻探

• 5.1　钻孔结构设计与钻进方法选择

• 5.2　冲击钻进

• 5.3　回转钻进

• 5.4　地下水位观测

• 5.5　钻孔止水与封孔

6　水文地质钻探与水井施工

• 6.1　钻孔结构设计与钻进方法选择

• 6.2　冲击钻进

• 6.3　回转钻进

• 6.4　气动冲击回转钻进

• 6.5　水文地质地下水位观测

• 6.6　成井工艺

7　基桩孔和成槽施工

• 7.1　一般规定

• 7.2　冲击钻进

• 7.3　冲抓锥钻进

• 7.4　大直径回转钻进

• 7.5　潜水电钻钻进

• 7.6　螺旋钻进

• 7.7　旋挖钻进

• 7.8　钻孔扩底钻进

• 7.9　钻孔挤扩支盘施工

• 7.10　成槽施工

• 7.11　清　　孔

8　特种钻探

• 8.1　定向钻进

• 8.2　岩心定向钻进

• 8.3　水平孔钻进

• 8.4　水上钻探

• 8.5　孔内爆破

9　冲洗介质与护壁堵漏

• 9.1　冲洗介质

• 9.2　护壁堵漏

10　钻探质量

• 10.1　岩（土）心、土试样与水试样的采取

• 10.2　勘察孔孔深校正与钻孔弯曲度

• 10.3　供水管井成井质量

• 10.4　基桩孔成孔质量

• 10.5　成槽质量

• 10.6　原始报表

• 10.7　终孔验收与资料提交

11　钻探设备使用、维护与拆迁

• 11.1　钻探设备使用与维护

• 11.2　钻探设备拆迁

附录A　岩心钻探岩石可钻性分级表

附录B　土的分类

附录C　岩心钻探岩石研磨性分级表

附录D　土试样质量等级划分

本规范用词说明

引用标准名录

1　General provisions

2　Terms and symbols

• 2.1　Terms

• 2.2　Symbols

3　Basic requirement

4　Drilling preparation works

• 4.1　Working out drilling construction scheme

• 4.2　Preparation of construction field

• 4.3　Installation of base platform and boring tower

• 4.4　Installation of drilling equipments

• 4.5　Installation of ancillary equipments

• 4.6　Check of preparation works

5　Engineering geological drilling

• 5.1　Design of borehole structure and choice of drilling methods

• 5.2　Percussion drilling

• 5.3　Rotary drilling

• 5.4　Observation of groundwater table

• 5.5　Shut-off of water and sealing of borehole

6　Hydrogeological drilling and well construction

• 6.1　Design of borehole structure and choice of drilling methods

• 6.2　Percussion drilling

• 6.3　Rotary drilling

• 6.4　Pneumatic percussion-rotary drilling

• 6.5　Observation of hydrogeological groundwater table

• 6.6　Well completion technology

7　Construction of foundation pile holes and trenches

• 7.1　General requirement

• 7.2　Percussion drilling

• 7.3　Percussion-grabbing drilling

• 7.4　Large-diameter rotary drilling

• 7.5　Phreatic water electrical drilling

• 7.6　Auger drilling

• 7.7　Rotary excavate drilling

• 7.8　Under-ream drilling

• 7.9　Extrusion hole drilling

• 7.10　Construction of trenches

• 7.11　Cleaning cuttings in the holes and trenches

8　Special drilling

• 8.1　Directional drilling

• 8.2　Core directional drilling

• 8.3　Horizontal hole drilling

• 8.4　Drilling on waterways

• 8.5　Blasting in the hole

9　Flushing medium，protecting hole wall and shut-off of loss

• 9.1　Flushing medium

• 9.2　Protecting hole wall and shut-off of loss

10　Drilling quality

• 10.1　Taken of rock core，soil and water samples

• 10.2　Depth and curvature of investigation hole

• 10.3　Construction quality of water supply well

• 10.4　Drilling quality of foundation pile hole

• 10.5　Construction quality of trenches

• 10.6　Original reports

• 10.7　Check and acceptance of final hole， submission of datum

11　Use，maintenance，disassemble and transportation of drilling equipments

• 11.1　Use and maintenance of drilling equipments

• 11.2　Disassemble and transportation of drilling equipments

Appendix A　Classification table of drillability of rock in core drilling

Appendix B　Classification of soils

Appendix C　Classification table of rock abrasiveness in core drilling

Appendix D　Grade classification of soil samples quality

Explanation of wording in this code

List of quoted standards