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　地基基础鉴定

• 4.1　一般规定

• 4.2　地基鉴定

• 4.3　基础鉴定

5　地基基础计算

• 5.1　一般规定

• 5.2　地基承载力计算

• 5.3　地基变形计算

6　增层改造

• 6.1　一般规定

• 6.2　直接增层

• 6.3　外套结构增层

7　纠倾加固

• 7.1　一般规定

• 7.2　迫降纠倾

• 7.3　顶升纠倾

8　移位加固

• 8.1　一般规定

• 8.2　设　　计

• 8.3　施　　工

9　托换加固

• 9.1　一般规定

• 9.2　设　　计

• 9.3　施　　工

10　事故预防与补救

• 10.1　一般规定

• 10.2　地基不均匀变形过大引起事故的补救

• 10.3　邻近建筑施工引起事故的预防与补救

• 10.4　深基坑工程引起事故的预防与补救

• 10.5　地下工程施工引起事故的预防与补救

• 10.6　地下水位变化过大引起事故的预防与补救

11　加固方法

• 11.1　一般规定

• 11.2　基础补强注浆加固

• 11.3　扩大基础

• 11.4　锚杆静压桩

• 11.5　树　根　桩

• 11.6　坑式静压桩

• 11.7　注浆加固

• 11.8　石　灰　桩

• 11.9　其他地基加固方法

12　检验与监测

• 12.1　一般规定

• 12.2　检　　验

• 12.3　监　　测

附录A　既有建筑基础下地基土载荷试验要点

附录B　既有建筑地基承载力持载再加荷载荷试验要点

附录C　既有建筑桩基础单桩承载力持载再加荷载荷试验要点

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　Soil and Foundation Identification

• 4.1　General Requirements

• 4.2　Soil Identification

• 4.3　Foundation Identification

5　Soil and Foundation Calculation

• 5.1　General Requirements

• 5.2　Bearing Capacity Calculation of Subsoil

• 5.3　Deformation Calculation of Subsoil

6　Vertical Extension

• 6.1　General Requirements

• 6.2　Vertical Extension Without Foundation Improvement

• 6.3　Extension with Outer Structure

7　Improvement for Tilt Rectifying

• 7.1　General Requirements

• 7.2　Rectification with Forced Settlement

• 7.3　Rectification with Jacking

8　Improvement for Building Shifting

• 8.1　General Requirements

• 8.2　Design of Building Shifting

• 8.3　Construction of Building Shifting

9　Improvement for Underpinning

• 9.1　General Requirements

• 9.2　Design of Underpinning

• 9.3　Construction of Underpinning

10　Accident Prevention and Remedy

• 10.1　General Requirements

• 10.2　Accident Remedy Connected with Uneven Settlement

• 10.3　Accident Prevention and Remedy Connected with Construction Adjacent to Existing Building

• 10.4　Accident Prevention and Remedy Connected with Deep Excavation

• 10.5　Accident Prevention and Remedy Connected with Underground Engineering Construction

• 10.6　Accident Prevention and Remedy Connected with too Large Change of Underground Water

11　Improvement Methods

• 11.1　General Requirements

• 11.2　Foundation Reinforcement by Injections

• 11.3　Enlarged Foundation

• 11.4　Anchor Jacked Pile

• 11.5　Root Pile

• 11.6　Pit-jacked Pile

• 11.7　Grouting Improvement

• 11.8　Lime Pile

• 11.9　Other Improvement Methods

12　Inspection and Monitoring

• 12.1　General Requirements

• 12.2　Inspection

• 12.3　Monitoring

Appendix A　Key Points of In-situ Loading Test on Subsoil Under Existing Buildings Foundation

Appendix B　Key Points of Loading and Reloading Tests for Subsoil Bearing Capacity of Existing Buildings

Appendix C　Key Points of Loading and Reloading Tests for a Single Pile Bearing Capacity of Existing Buildings

Explanation of Wording in This Code

List of Quoted Standards