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　地基岩土的分类及工程特性指标

• 4.1　岩土的分类

• 4.2　工程特性指标

5　地基计算

• 5.1　基础埋置深度

• 5.2　承载力计算

• 5.3　变形计算

• 5.4　稳定性计算

6　山区地基

• 6.1　一般规定

• 6.2　土岩组合地基

• 6.3　填土地基

• 6.4　滑坡防治

• 6.5　岩石地基

• 6.6　岩溶与土洞

• 6.7　土质边坡与重力式挡墙

• 6.8　岩石边坡与岩石锚杆挡墙

7　软弱地基

• 7.1　一般规定

• 7.2　利用与处理

• 7.3　建筑措施

• 7.4　结构措施

• 7.5　大面积地面荷载

8　基　　础

• 8.1　无筋扩展基础

• 8.2　扩展基础

• 8.3　柱下条形基础

• 8.4　高层建筑筏形基础

• 8.5　桩　基　础

• 8.6　岩石锚杆基础

9　基坑工程

• 9.1　一般规定

• 9.2　基坑工程勘察与环境调查

• 9.3　土压力与水压力

• 9.4　设计计算

• 9.5　支护结构内支撑

• 9.6　土层锚杆

• 9.7　基坑工程逆作法

• 9.8　岩体基坑工程

• 9.9　地下水控制

10　检验与监测

• 10.1　一般规定

• 10.2　检　　验

• 10.3　监　　测

附录A　岩石坚硬程度及岩体完整程度的划分

附录B　碎石土野外鉴别

附录C　浅层平板载荷试验要点

附录D　深层平板载荷试验要点

附录E　抗剪强度指标c、φ标准值

附录F　中国季节性冻土标准冻深线图

附录G　地基土的冻胀性分类及建筑基础底面下允许冻土层最大厚度

附录H　岩石地基载荷试验要点

附录J　岩石饱和单轴抗压强度试验要点

附录K　附加应力系数α、平均附加应力系数

附录L　挡土墙主动土压力系数ka

附录M　岩石锚杆抗拔试验要点

附录N　大面积地面荷载作用下地基附加沉降量计算

附录P　冲切临界截面周长及极惯性矩计算公式

附录Q　单桩竖向静载荷试验要点

附录R　桩基础最终沉降量计算

附录S　单桩水平载荷试验要点

附录T　单桩竖向抗拔载荷试验要点

附录U　阶梯形承台及锥形承台斜截面受剪的截面宽度

附录Ⅴ　支护结构稳定性验算

附录W　基坑抗渗流稳定性计算

附录Y　土层锚杆试验要点

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　G eotechnical Classification and Index Properties

• 4.1　Geotechnical Classification

• 4.2　Engineering Index Properties

5　Foundation Design Calculation

• 5.1　Embedded Depth of Foundation

• 5.2　Bearing Capacity Calculation

• 5.3　Deformation Calculation

• 5.4　Stability Calculation

6　Foundation in Mountain Area

• 6.1　General Requirements

• 6.2　Foundation on Rock and Soil

• 6.3　Foundation on Compacted Fill

• 6.4　Landslide Prevention

• 6.5　Foundation on Rock

• 6.6　Karst and Sinkhole

• 6.7　Earth Slope and Gravity Retaining Wall

• 6.8　Rock Slope and Anchor Wall

7　Soft Ground

• 7.1　General Requirements

• 7.2　Usage and Treatment

• 7.3　Architectural Measurement

• 7.4　Structural Measurement

• 7.5　Massive Ground Surcharge

8　Foundation Type

• 8.1　Unrcinforced Spread Footing

• 8.2　Spread Footing

• 8.3　Strip Footing under Column

• 8.4　Raft Foundation for High Rise Building

• 8.5　Pile Foundation

• 8.6　Foundation on Rock- Anchor System

9　Excavation engineering

• 9.1　General Requirements

• 9.2　Engineering Investigation and Environmental Survey

• 9.3　Earth Pressure and Water Pressure

• 9.4　Design Calculation

• 9.5　Internally Braced Excavation

• 9.6　Earth Anchors

• 9.7　Reversed Construction Method in Excavation Engineering

• 9.8　Excavation Engineering in Rock

• 9.9　Groundwater Control

10　Inspection and Monitoring

• 10.1　General Requirements

• 10.2　Inspection

• 10.3　Monitoring

Appendix A　Rock Hardness and Soundness Classification

Appendix B　Field Characterization of Gravelly Soi

Appendix C　Key Points for Shallow Plate Load Testing

Appendix D　Key Points for Deep Plate Load Testing

Appendix E　Standardized Value for Shear Strength Parameters c and φ

Appendix F　Contour of Seasonal Standardized Frost Depth in China

Appendix G　Classification of Soil Expansionupon Freezing and Maximum Allowable hickness of Frozen Earth above Building Foundation

Appendix H　Key Points for Loading Test on Rock

Appendix J　Requirements for Uni-axial Compressive Strength Testing on Rock

Appendix K　Stress Influence Coefficientαand Average Stress Influence Coefficient ?

Appendix L　Active Earth Pressure Coefficient ka for Retaining Wall

Appendix M　Key Points for Pullout Resistance Testing on Rock Anchors

Appendix N　Calculation of Subsequent Foundation Settlement under Massive Ground Surcharge

Appendix P　Perimeter of Critical Section for Shearing and Polar Moment of Inertia Calculation

Appendix Q　Key Points for Vertical Static Load Test on Single Pile

Appendix R　Final Settlement Calculation for Pile Foundation

Appendix S　Key Points for Lateral Load Test on Single Pile

Appendix T　Key Points for Uplift Capacity Test on Single Pile

Appendix U　Anti-shearing Sectional Width of Step and Cone-shape Pile Cap

Appendix V　Stability Evaluation for Excavation Supporting Structures

Appendix W　Anti-seepage Stability Evaluation for Foundation Pit

Appendix Y　Key Points for Pre-stressed Earth Anchor Testing

Explanation of Wording in This Code

List of Quoted Standards