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JGJ 79-2012

Chinese Standard: 'JGJ 79-2012'
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Detail Information of JGJ 79-2012; JGJ79-2012
Description (Translated English): Technical code for ground treatment of buildings
Sector / Industry: Building & Construction Industry Standard
Classification of Chinese Standard: P22
Classification of International Standard: 93.020
Word Count Estimation: 226,236
Older Standard (superseded by this standard): JGJ 79-2002
Quoted Standard: GB 311.1-1997; GB 1208-2006; GB/T 7252-2001; GB/T 7354-2003; GB/T 7595-2000; GB/T 13384-1992; JB/T 5356; JB/T 5895-1991
Drafting Organization: China Academy of Building Research
Administrative Organization: ?Ministry of Housing and Urban-Rural Development
Regulation (derived from): Ministry of Housing and Urban Notice No. 1448 No.
Summary: This standard applies to the construction of foundation treatment design, construction and quality inspection.

UDC
PROFESSIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
P JGJ 79−2012
Record Number. J 220−2012
Technical Code for Ground Treatment of
Buildings
建筑地基处理技术规范
ISSUED ON. AUGUST 23, 2012
IMPLEMENTED ON. JUNE 1, 2013
Issued by Ministry of Housing and Urban-Rural Development of the People’s Republic
of China
PROFESSIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
中华人民共和国行业标准
Technical Code for Ground Treatment of Buildings
建筑地基处理技术规范
JGJ 79−2012
Approval Department. Ministry of Housing and Urban-Rural Development of the People’s Republic
of China
Implementation Date. June 1, 2013
Beijing 2012
Announcement of the Ministry of Housing and Urban-Rural
Development of the People’s Republic of China
No. 1448
Announcement on Publishing the Professional Standard of “Technical Code for
Ground Treatment of Buildings”
“Technical Code for Ground Treatment of Buildings” has been approved as a professional standard
with a serial number of JGJ 79−2012 and will be implemented on June 1, 2013. Therein, Articles
3.0.5, 4.4.2, 5.4.2, 6.2.5, 6.3.2, 6.3.10, 6.3.13, 7.1.2, 7.1.3, 7.3.2, 7.3.6, 8.4.4 and 10.2.7 are
compulsory provisions and must be enforced strictly. Professional standard “Technical Code for
Ground Treatment of Buildings” JGJ 79−2002 shall be abolished simultaneously.
Authorized by the Standard Rating Research Institute of the Ministry of Housing and Urban-
Rural Development of the People’s Republic of China, this code is published by China Architecture &
Building Press.
Ministry of Housing and Urban-Rural Development of the People’s Republic of China
August 23, 2012
Foreword
According to the requirements of “Notice on Printing ‘Development and Revision Plan of National
Engineering Construction Standards and Codes in 2009’” (Jian Biao [2009] No. 88) issued by the
Ministry of Housing and Urban-Rural Development, “Technical Code for Ground Treatment of Buildings”
JGJ 79−2002 was revised by the code drafting group through extensive investigation, by earnestly
summing up the practical experiences, by reference to the relevant international standards and foreign
advanced standards, in coordination with the relevant domestic codes, as well as on the basis of
widely soliciting opinions.
This code comprises of the following main technical contents. 1. General Provisions; 2. Terms
and Symbols; 3. Basic Requirements; 4. Replacement Layer of Compacted Fill; 5. Preloaded Ground;
6. Compacted Ground and Rammed Ground; 7. Composite Foundation; 8. Ground Improvement by
Permeation and High Hydrofracture Grouting; 9. Ground Improvement by Micropiles; 10. Inspection
and Monitoring.
The main technical contents revised in this code are as follows. 1. The requirements for the treated
ground in conformity with the bearing capacity, deformation and stability of buildings were added;
2. Inspection requirements for the comprehensive safety coefficient of acceptance inspection were
added for the ground treatment engineering by virtue of various integrated ground treatment methods;
3. Materials for ground treatment were added, which shall meet the requirements of durability design
according to the environment categories of the site; 4. Overall stability analysis method for the treated
ground was added; 5. Design checking method for the replacement layer of tensile reinforcement was
added; 6. Design and construction requirements for the combined preloading with surcharge of fill
and vacuum preloading treatment were added; 7. Design parameters for the high compacting energy
were added; 8. Checking method for the pile body strength of reinforcement with bond strength in
case of base depth corrected for the bearing capacity of composite foundation was added; 9. Design
and construction requirements for the composite foundation with multiple reinforcement of different
materials or lengths were added; 10. Ground improvement by permeation and high hydrofracture
grouting was added; 11. Ground improvement by micropiles was added; 12. Inspection and monitoring
were added; 13. Key points for load test on single pile of composite foundation were added; 14. Key
points for load test on treatment ground were added.
The provisions printed in bold type in this code are compulsory ones and must be enforced
strictly.
The Ministry of Housing and Urban-Rural Development of the People’s Republic of China is in
charge of the administration of this code and the explanation of the compulsory provisions, and the
China Academy of Building Research is responsible for the explanation of specific technical contents.
During the process of implementing this code, the relevant opinions and advice, whenever necessary,
can be posted or passed on to China Academy of Building Research (Address. No. 30, North Third
Ring Road East, Beijing, 100013, China).
Chief Development Organization. China Academy of Building Research
Participating Development Organizations.
China JK Institute of Engineering Investigation and Design
Hubei Design and Research Institute of Building
Fujian Academy of Building Research
Shenyuan Geotechnical Engineering Co., Ltd. of Shanghai Modern
Architectural Design (Group) Co., Ltd.
China Zhonghua Geotechnical Engineering Co., Ltd.
China Aviation Planning and Construction Development Co., Ltd.
Tianjin University
Tongji University
Taiyuan University of Technology
Zhengzhou University Multi-function Design and Research Academy
Chief Drafting Staff. Teng Yanjing, Zhang Yongjun, Yan Mingli, Zhang Feng, Zhang Donggang,
Yuan Neizhen, Hou Weisheng, Ye Guanbao, Bai Xiaohong, Zheng Gang,
Wang Yaling, Shui Weihou, Zheng Jianguo, Zhou Tonghe, Yang Junfeng
Chief Examiners. Gu Guorong, Zhou Guojun, Gu Xiaolu, Xu Zhangjian, Zhang Bingji,
Kang Jingwen, Mei Quanting, Teng Wenchuan, Xiao Ziqiang, Pan Kaiyun,
Huang Xin
Contents
1 General Provisions...1
2 Terms and Symbols...2
2.1 Terms ...2
2.2 Symbols ...4
3 Basic Requirements ...7
4 Replacement Layer of Compacted Fill ...9
4.1 General Requirements ...9
4.2 Design Considerations ...9
4.3 Construction...13
4.4 Inspection...14
5 Preloaded Ground...16
5.1 General Requirements ...16
5.2 Design Considerations ...17
5.3 Construction...23
5.4 Inspection...25
6 Compacted Ground and Rammed Ground ...27
6.1 General Requirements ...27
6.2 Compacted Ground ...27
6.3 Rammed Ground...31
7 Composite Foundation...38 ......
Related standard:   JG/T 196-2018  JGJ/T 396-2018
   
 
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