文档介绍：National Standard of the People's Republic of China GB 50021 -2001 Code for Investigation of Geotechnical Engineering 岩土工程勘察规范 Prepared by: the Ministry of Construction of the People's Republic of China Approved by: the Minis try of Construction of the People's Republic of China Implemented on: March 1, 2002 Contents Foreword ................................ ................................ ................................ ............................. 1 1 General Provisions ................................ ................................ ................................ ...... 4 2 Terms and Symbols ................................ ................................ ................................ ..... 4 3 Investigation Classification and Geotechnical Classification ................................ ...... 7 4 Basic Requirements of Engineering Investigations ................................ ................... 16 Building Construction and Structures ................................ ................................ ... 16 Undergroun d Excavation ................................ ................................ ........................ 24 Shoreside Engineering ................................ ................................ ........................... 27 Road and work Engineering ................................ .......................... 30 Waste Disposal Engineering ................................ ................................ .................. 34 Nuclear Power Plant ................................ ................................ ............................... 39 Side Slope Engineering ................................ ................................ .......................... 46 Foundation Excavation Engineering ................................ ................................ ..... 49 Pile Foundation ................................ ................................ ................................ ........ 51 F