Announcement ofPublishing thePartialRevisionof National Standard of “Code for Investigation of GeotechnicalEngineering No.314 "Code for Investigation of Geotechnical Engineering" has been approved as a na- tional steedard with a serial number of GB 50021 2001 and will be implemented on July 1, 2009. Therein. Cleuses 1. 0. 3. 4. 1. 18 (1. 2. 3, snd 4), 4. 1. 20 (1. 2, and 3), 4, 8. 5,5, 7, 2, and 7, 2. 2 are polsory provisions snd must be enforced strictly. The former clawses shell be abolished sinsultaneously. Partial revision clauses and specific content will be published on the recent publice- tions “Engineering Construetion Standardizstion".
Ministry of Housing and Urban-Rural Development of the People’s Republic of China May 19 , 2009
Notice onPublishing theNational Standard of “Code for Investigation of Geotechnical Engineering” Jian Biao [2002] No, 7 In accordance with the requirements of *Notice on Printing tbe Development and Revision Plan of National Engineering Construction Standards in 1998*(No. Jian Biso [1998] No, 244), the *Code for Investigation of Geotechnicai Engineering", revised jointly by the Ministry of Construction of P. R. C and other related department, has been reviewed and approved jointly as a national stendsrd with a reference code of GB 50021 2001, and will be put into effeet from Msreh 1, 2002. In this code, the Artieles 1, 0.3. 4. 1.11, 4.1.17, 4.1. 18, 4. 1. 20, 4.8. 5, 4.9. 1. 5.1. 1, 5. 2. 1, 5,3, 1, 5, 4. 1, 5. 7, 2. 5, 7. 8, 5. 7, 10. 7, 2. 2 and 14, 3, 3 are pulsory articles and must be cazried nut strietly, correspondingly, the former °Code for Investigation of Geotechnical Engi- neering" GB 50021-94 will be abolished on December 31. 2002. The Ministry of Construction, P. R. C sball be responsible for the interpretation of the pulsory articles in the code, Comprebensive Institute of Geotechtical Investiga- tion &. Surveying is in charge of the interpretation of the detailed tecinical content, Re- search Inatitute for Standards and Norms of the Ministry of Construetion shall organize its publicatice by Chine Architecture &. Building Presx,
Ministry of Construction of the People's Republic of China January 10,2002
Foreword This code is tbe revision of *Code for Investigation of Geotechrical Enginecringa is sued in 1994 aceording to the requirerment of Jinn Bieo [1998] No. 224. In the course of revision, the chief editorial peny. Comprchensive Institute of Geotechnical Investi- gation &. Surveying, together with other investigation, design, scientific rescerch and tcaching units, formed sdevelopment group, to inquire widely for ments in tho whole nation. The group worked out sotme special reports on the key modification parts, by coordinsting the code with the corrent nationat standards and those being amended, After lots of discussion and iterative revislon, *Prelirnintary draft*, *Inquired Comments draf1" and *Final draft" were worked out successively end exemincd, the final version has been epproved aad Geveloped finally. This code msintains the scope of application, general frame snd main content of "Code for Investigation of Geotechnical Engineeringa issued in 1994 and odjusts pertinl- ly. It includes 14 chspters: Chapter 1 General Provisions, Chepter 2 Terminology and symbals; Chapter 3 Greding of investigation and classification of rock &. soil ; Chapter 4 Basic requirements of the investigation lor various engineering: Chapter 5 Adversc geo- ogical actions and geological disasters; Chapter S Special rock &. soil; Cbapter 7 Un- derground water, Chapter 8 Geological cngineering mnpping snd survey: Chapter 9 Ex- plorstion and sampling: Chapter 10 In-situ tests; Chspter 11 Lahoratory tests, Chapter 12 Appraisal of water anel soil corrosivity: Chapter 13 In-situ inspection and monito- ring: Chapter 14 Geotechnicsl Engincering Analysis and Assessnent snd Invesitigation Report. The main emendatory contents are as follows: 1. In the scope of spplication, the in- vestigation of nuclear power piaot is acded; 2. The chapter *terminolugy snd aymbols* is ndded; 3. Classification of rock hardness and integrity and basic rock quality designd- foundation* are tmodified; 5. The investigation specification of *underground cavity*. “retsining and protocting for foundation excavation engineering", *foundation pit engi- ncering”, and “subsoil trcatrment° are modified: 6, The section “tailings dam and ash yard dam* is altered as the investigation Ior *wsste dispossl engineeringa : 7, The chap- ter *stability of the site” is modified into *adiverse geologicel actions and geological dis ssters": 8. *Site and foundetion of macro-seismic area* and *carthquske liquefaction” is paa, pue _oe aqdegro. *6 +_uogepunog pus ais jo yoogga aenhqusa_ oui paueo clay” in speciol soil is modified, 10. The investigstios rcquirement of *underground wa-
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