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　冻土分类和冻胀、融沉性分级

• 3.1　冻土分类和定名

• 3.2　土的冻胀和多年冻土融沉性分级

4　冻土工程地质勘察基本要求

• 4.1　一般规定

• 4.2　冻土工程地质勘察的任务

• 4.3　冻土工程地质区划原则

• 4.4　冻土工程地质评价

• 4.5　冻土工程地质勘察报告

5　冻土工程地质调查与测绘

• 5.1　一般规定

• 5.2　冻土现象调查与测绘

6　冻土工程地质勘探与取样

• 6.1　一般规定

• 6.2　钻探

• 6.3　坑探、槽探

• 6.4　地球物理勘探

• 6.5　冻土取样与运送

7　冻土试验与观测

• 7.1　一般规定

• 7.2　室内试验

• 7.3　原位测试

• 7.4　观测

8　建筑冻土工程地质勘察

• 8.1　一般规定

• 8.2　可行性研究勘察

• 8.3　初步勘察

• 8.4　详细勘察

9　铁路冻土工程地质勘察

• 9.1　一般规定

• 9.2　工程地质选线

• 9.3　踏勘阶段勘察

• 9.4　初测阶段勘察

• 9.5　定测阶段勘察

• 9.6　施工阶段勘察

• 9.7　运营阶段勘察

10　公路冻土工程地质勘察

• 10.1　一般规定

• 10.2　工程地质选线

• 10.3　可行性研究勘察

• 10.4　初步勘察

• 10.5　详细勘察

11　水利水电冻土工程地质勘察

• 11.1　一般规定

• 11.2　规划阶段勘察

• 11.3　可行性研究和初步设计阶段勘察

• 11.4　招标设计和施工详图设计阶段勘察

12　管道冻土工程地质勘察

• 12.1　一般规定

• 12.2　可行性研究（选线）勘察

• 12.3　初步勘察

• 12.4　详细勘察

• 12.5　施工勘察

13　架空送电线路冻土工程地质勘察

• 13.1　一般规定

• 13.2　可研勘察

• 13.3　初步勘察

• 13.4　施工图勘察

附录A　中国冻土类型及分布

附录B　冻土的含冰特征与定名

附录C　冻土物理力学参数

附录D　土的季节融化与冻结深度

附录E　冻土构造及融沉性的野外鉴别

附录F　冻土融化压缩试验要点

附录G　冻土力学指标原位试验要点

附录H　冻土地基静载荷试验要点

附录J　冻土地温观测

附录K　多年冻土上限的确定

附录L　冻土地温特征参数计算

附录M　冻土钻探方法要点

附录N　冻土地球物理勘探方法要点

附录P　冻土室内单轴压缩试验要点

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 Classification of frozen ground，gradation of frost heave and thaw settlement

• 3.1 Classification and designation of frozen ground

• 3.2 Gradation of frost heave and thaw settlement for permaforst

4 Basic requirement for engineering geological investigation of frozen ground

• 4.1 General requirements

• 4.2 Tasks of engineering geological investigation for frozen ground

• 4.3 Zonation principle for engineering geology of frozen ground

• 4.4 Evaluation for engineering geology for frozen ground

• 4.5 Report on engineering geological investigation of frozen ground

5 Survey and mapping of engineering geology for frozen ground

• 5.1 General requirements

• 5.2 Survey and mapping of features related to frozen ground

6 Exploration and sampling of engineering geology off rozen ground

• 6.1 General requirements

• 6.2 Drilling

• 6.3 Pit prospecting and trenching

• 6.4 Geophysical exploration

• 6.5 Sampling and transportation of frozen ground

7 Testing and observing of frozen ground

• 7.1 General requirements

• 7.2 Laboratory testing

• 7.3 In-situ testing

• 7.4 Observing

8 Engineering geological investigation of frozen ground for building

• 8.1 General requirements

• 8.2 Investigation for feasibility study

• 8.3 Preliminary investigation

• 8.4 Detailed investigation

9 Engineering geological investigation of frozen ground in railway engineering

• 9.1 General requirements

• 9.2 Route selection according to engineering geology

• 9.3 Investigation in reconnaissance stage

• 9.4 Investigation in primary survey stage

• 9.5 Investigation in final survey stage

• 9.6 Investigation in construction stage

• 9.7 Investigation in operation stage

10 Engineering geological investigation of frozen ground in highway engineering

• 10.1 General requirements

• 10.2 Route selection according to engineering geology

• 10.3 Investigation for feasibility study

• 10.4 Primary investigation

• 10.5 Detailed investigation

11 Engineering geological investigation of frozen ground in water conservancy and hydropower engineering

• 11.1 General requirements

• 11.2 Investigation in programming stage

• 11.3 Investigation in feasibility study and preliminary design stage

• 11.4 Investigation in tender design and construction blueprint design stage

12 Engineering geological investigation of frozen ground in pipeline engineering

• 12.1 General requirements

• 12.2 Investigation for feasibility study

• 12.3 Preliminary investigation

• 12.4 Detailed investigation

• 12.5 Investigation for construction

13 Engineering geological investigation of frozen ground for power transmission lines

• 13.1 General requirements

• 13.2 Investigation for feasibility study

• 13.3 Preliminary investigation

• 13.4 Investigation for construction blueprint

Appendix A Type and distribution of frozen ground in China

Appendix B Ice feature and designation of frozen ground

Appendix C Physical and mechanical parameters of frozen ground

Appendix D Seasonal frost and thaw depth of frozen ground

Appendix E Fieldidentificatin for structure and thaw settlement of frozen ground

Appendix F Outlines for thaw consolidation test offrozen ground

Appendix G Outlines for in-situ test of mechanical index of frozen ground

Appendix H Outlines for load test of frozen ground

Appendix J Guidelines for observation of frozen ground temperature

Appendix K Determination of permafrost table

Appendix L Calculation of characteristic parameters of frozen ground temperature

Appendix M Outlines for theexploration method of frozen ground

Appendix N Outlines for the geophysicalexpl oration methods of frozen ground

Appendix P Outlines for laboratory experiment on uniaxial compression of frozen ground

Explanation of wording in this code

List of quoted standards