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　冻土分类与勘察要求

• 3.1　冻土名称与分类

• 3.2　冻土地基勘察要求

4　多年冻土地基的设计

• 4.1　一般规定

• 4.2　保持冻结状态的设计

• 4.3　逐渐融化状态的设计

• 4.4　预先融化状态的设计

• 4.5　含土冰层、盐渍化冻土与冻结泥炭化土地基的设计

5　基础的埋置深度

• 5.1　季节冻土地基

• 5.2　多年冻土地基

6　多年冻土地基的计算

• 6.1　一般规定

• 6.2　保持冻结状态地基的计算

• 6.3　逐渐融化状态和预先融化状态地基的计算

7　基　　础

• 7.1　一般规定

• 7.2　多年冻土上的通风基础

• 7.3　桩　基　础

• 7.4　浅　基　础

• 7.5　热棒、热桩基础

8　边坡及挡土墙

• 8.1　边　　坡

• 8.2　挡　土　墙

9　检验与监测

• 9.1　检　　验

• 9.2　监　　测

附录A　冻土强度指标的特征值

附录B　多年冻土中建筑物地基的融化深度

附录C　冻胀性土地基上基础的稳定性验算

• C.1　裸露的建筑物基础

• C.2　采暖建筑物基础

• C.3　自锚式基础

附录D　冻土地温特征值及融化盘下最高土温的计算

• D.1　冻土地温特征值的计算

• D.2　采暖建筑物稳定融化盘下冻土最高温度

附录E　架空通风基础通风孔面积的确定

附录F　多年冻土地基静载荷试验要点

附录G　冻土融化下沉系数和压缩系数指标

附录H　多年冻土地基单桩竖向静载荷试验要点

附录J　热桩、热棒基础计算

附录K　冻土、未冻土热物理指标的计算值

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　Frozen Soil Classification and Exploration Requirements

• 3.1　Designation and Classification of Frozen Soil

• 3.2　Exploration Requirements of Frozen Soil Subgrade

4　Permafrost Subgrade Design

• 4.1　Basic Requirements

• 4.2　Design of Keeping Frozen State

• 4.3　Design of Gradual Melting

• 4.4　Design of Pre-melting State

• 4.5　Design of Subgrade with Soil-ice Layer，Saline Frozen Soil and Frozen Peaty Soil

5　Embedded Depth of Foundation

• 5.1　Seasonally Frozen Soil Subgrade

• 5.2　Permafrost Subgrade

6　Calculation of Permafrost Subgrade

• 6.1　Basic Requirements

• 6.2　Design of Keeping Frozen State

• 6.3　Calculation of Melting and Pre-melting Subgrade

7　Foundation

• 7.1　Basic Requirements

• 7.2　Ventilation Foundation of Permafrost

• 7.3　Pile Foundation

• 7.4　Shallow Foundation

• 7.5　Thermal Probes，Thermal Pile Foundation

8　Slope and Retaining Wall

• 8.1　Slope

• 8.2　Retaining Wall

9　Inspection and Monitoring

• 9.1　Inspection

• 9.2　Monitoring

Appendix A　Characteristic Value of Frozen Soil Strength

Appendix B　Thaw-settlement Depth of Permafrost Subgrade under heated building

Appendix C　Stability Computation of Foundation on theSubgrade of Frost Heaving Soil

• C.1　Foundation under Unheated Building

• C.2　Foundation under Heated Building

• C.3　Self-anchored Foundation

Appendix D　Calculation for Characteristic Value for Temperature of Frozen Soil and the Highest Temperature under Thaw Bulb under Heated Building

• D.1　Calculation for Characteristic Value for Temperature of Frozen Soil

Appendix E　Determination for the Area of Ventilation Hole of Elevated Ventilated Foundation

Appendix F　Static Bearing Capacity Test of Permafrost Subgrade

Appendix G　Thaw-settlem ent Coefficient and Thaw Compressibility Coefficient of Frozen Soil

Appendix H　Vertical Bearing Capacity test of Single Pile in Permafrost Subgrade

Appendix J　Calculation for Thermal Probes，Thermal Pile Foundation

Appendix K　Thermophysical Index of Frozen Soil and Unfrozen Soil

Explanation of Wording in This Code

List of Quoted Standards