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　岩土分类、描述与围岩分级

• 4.1　岩石分类

• 4.2　土的分类

• 4.3　岩土的描述

• 4.4　围岩分级与岩土施工工程分级

5　可行性研究勘察

• 5.1　一般规定

• 5.2　目的与任务

• 5.3　勘察要求

6　初步勘察

• 6.1　一般规定

• 6.2　目的与任务

• 6.3　地下工程

• 6.4　高架工程

• 6.5　路基、涵洞工程

• 6.6　地面车站、车辆基地

7　详细勘察

• 7.1　一般规定

• 7.2　目的与任务

• 7.3　地下工程

• 7.4　高架工程

• 7.5　路基、涵洞工程

• 7.6　地面车站、车辆基地

8　施工勘察

9　工法勘察

• 9.1　一般规定

• 9.2　明挖法勘察

• 9.3　矿山法勘察

• 9.4　盾构法勘察

• 9.5　沉管法勘察

• 9.6　其他工法及辅助措施勘察

10　地下水

• 10.1　一般规定

• 10.2　地下水的勘察要求

• 10.3　水文地质参数的测定

• 10.4　地下水的作用

• 10.5　地下水控制

11　不良地质作用

• 11.1　一般规定

• 11.2　采空区

• 11.3　岩溶

• 11.4　地裂缝

• 11.5　地面沉降

• 11.6　有害气体

12　特殊性岩土

• 12.1　一般规定

• 12.2　填土

• 12.3　软土

• 12.4　湿陷性土

• 12.5　膨胀岩土

• 12.6　强风化岩、全风化岩与残积土

13　工程地质调查与测绘

• 13.1　一般规定

• 13.2　工作方法

• 13.3　工作范围

• 13.4　工作内容

• 13.5　工作成果

14　勘探与取样

• 14.1　一般规定

• 14.2　钻探

• 14.3　井探、槽探

• 14.4　取样

• 14.5　地球物理勘探

15　原位测试

• 15.1　一般规定

• 15.2　标准贯入试验

• 15.3　圆锥动力触探试验

• 15.4　旁压试验

• 15.5　静力触探试验

• 15.6　载荷试验

• 15.7　扁铲侧胀试验

• 15.8　十字板剪切试验

• 15.9　波速测试

• 15.10　岩体原位应力测试

• 15.11　现场直接剪切试验

• 15.12　地温测试

16　岩土室内试验

• 16.1　一般规定

• 16.2　土的物理性质试验

• 16.3　土的力学性质试验

• 16.4　岩石试验

17　工程周边环境专项调查

• 17.1　一般规定

• 17.2　调查要求

• 17.3　成果资料

18　成果分析与勘察报告

• 18.1　一般规定

• 18.2　成果分析与评价

• 18.3　勘察报告的内容

19　现场检验与检测

附录A　岩石坚硬程度的定性划分

附录B　岩石按风化程度分类

附录C　岩体按结构类型分类

附录D　碎石土的密实度

附录E　隧道围岩分级

附录F　岩土施工工程分级

附录G　不同等级土试样的取样工具和方法

附录H　基床系数经验值

附录J　工法勘察岩土参数选择

附录K　岩土热物理指标经验值

附录L　常用图例

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 requirements

4 Classification&description of rock&soil and grading of surrounding rock

• 4.1 Classification of rock

• 4.2 Classification of soil

• 4.3 Description of rock and soil

• 4.4 Grading of surrounding rock and geotechnical construction engineering

5 Feasibility study investigation

• 5.1 General requirement

• 5.2 Purpose and task

• 5.3 Requirement of investigation

6 Preliminary investigation

• 6.1 General requirement

• 6.2 Purpose and task

• 6.3 Underground engineering

• 6.4 Viaduct project

• 6.5 Subgrade engineering and culvert engineering

• 6.6 Ground station，vehicle base

7 Detailed investigation

• 7.1 General requirement

• 7.2 Purpose and task

• 7.3 Underground engineering

• 7.4 Viaduct project

• 7.5 Subgrade engineering and culvert engineering

• 7.6 Ground station，vehicle base

8 Construction investigation

9 Geotechnical investigations for construction methods

• 9.1 General requirement

• 9.2 Cut and cover methed

• 9.3 Mining method

• 9.4 Shield tunnelling method

• 9.5 Immersed tube method

• 9.6 Other methods and auxiliary measures

10 Underground water

• 10.1 General requirement

• 10.2 Investigation requirements of underground water

• 10.3 Mensurement of hydro-geological parameters

• 10.4 Action of underground water

• 10.5 Control of underground water

11 Adverse geological actions

• 11.1 General requirement

• 11.2 Goaf

• 11.3 Karst

• 11.4 Ground fissure

• 11.5 Ground subsidence

• 11.6 Harmful gas

12 Special rock&soil

• 12.1 General requirement

• 12.2 Fill

• 12.3 Soft soil

• 12.4 Collapsible soil

• 12.5 Expansive rock&soil

• 12.6 Highly weathered and fully weathered&residual soil

13 Engineering geological investigation and mapping

• 13.1 General requirement

• 13.2 Working methods

• 13.3 Working range

• 13.4 Working contents

• 13.5 Working achievement

14 Exploration and sampling

• 14.1 General requirement

• 14.2 Drilling

• 14.3 Well and trench

• 14.4 Sampling

• 14.5 Geophysical exploration

15 In-situ tests

• 15.1 General requirement

• 15.2 Standard penetration test

• 15.3 Cone dynamic penetration test

• 15.4 Pressuremeter test

• 15.5 Cone penetration test

• 15.6 Loading test

• 15.7 Dilatometer test

• 15.8 Vane shear test

• 15.9 Wave velocity test

• 15.10 In-situ stress test of rock mass

• 15.11 Field direct shear test

• 15.12 Geothermal test

16 Laboratory test of rock&soil

• 16.1 General requirement

• 16.2 Tests of the physical properties of the soil

• 16.3 Tests of the mechanical properties of the soil

• 16.4 Rock test

17 Investigation of engineering surrounding environment

• 17.1 General requirement

• 17.2 Investigation requirements

• 17.3 Achievement data

18 Analysis of achievement and investigation report

• 18.1 General requirement

• 18.2 Achievement analysis and assessment

• 18.3 Contens of investigation report

19 In-situ inspection and checking&engineering monitoring

Appendix A Qualitative boundaries of rock hardness

Appendix B Weathering degree classification of rocks

Appendix C Rock mass classification in terms of structural type

Appendix D Compactness of gravelly soil

Appendix E Grading of tunnel surrounding rock

Appendix F Grading of geotechnical construction engineering

Appendix G Sampling tools and methods for sampling of different grades

Appendix H Empirical value of subgrade reaction coefficient

Appendix J Geotechnical parameters choice in working methods of investigation

Appendix K Empirical value of geotechnical thermophysical index

Appendix L Used legends

Explanation of wording in this code

List of quoted standards