Standard No.:	NB/T 20308-2014
English Name:	Design code for nuclear safety related plants foundation for pressure water reactor nuclear power plants
Chinese Name:	压水堆核电厂核安全有关厂房地基基础设计规范
Chinese Classification:	F65    Nuclear island of nuclear power plant
Professional Classification:	NB    Professional Standard - Energy
ICS Classification:	27.120.20 27.120.20    Nuclear power plants. Safety 27.120.20
Issued by:	National Energy Administration
Issued on:	2014-06-29
Implemented on:	2014-11-1
Status:	to be superseded
Superseded by:	NB/T 20308-2024
Superseded on:	2025-3-24
Language:	English
File Format:	PDF
Word Count:	13000 words
Price(USD):	260.0
Delivery:	via email in 1 business day

1 Scope This standard specifies basic requirements, rock and soil classification of foundation and engineering characteristics, foundation design, excavation engineering, inspection and monitoring of nuclear safety related plants foundation design for pressure water reactor nuclear power plant. This standard is applicable to foundation design of nuclear safety related plant for pressure water reactor nuclear power plant, and nuclear safety related other buildings or structures may refer to this standard for foundation design. 2 Normative References The following documents for the application of this document are essential. For dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document. GB 50108 Technical Code for Waterproofing of Underground Works GB 50267 Code for Seismic Design of Nuclear Power Plants GB 50496 Code for Construction of Mass Concrete GB 50007-2011 Code for Design of Building Foundation GB 50011-2010 Code for Seismic Design of Buildings GB/T 50476 Code for Durability Design of Concrete Structures NB/T 20012-2010 Design Requirements for Nuclear Safety Related Concrete Structure for Pressure Water Reactor Nuclear Power Plant NB/T 20021 Construction Specification for Concrete Raft Foundation of Nuclear Island in Pressure Water Reactor Nuclear Power Plant NB/T 20105-2012 Load Code for the Design of Nuclear Power Plants Building Structures JGJ 94-2008 Technical Code for Building Pile Foundations 3 Terms, Definitions and Symbols 3.1 Terms and Definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 Ground, foundation soils

Foreword i 1 Scope 2 Normative References 3 Terms, Definitions and Symbols 3.1 Terms and Definitions 3.2 Symbols 4 Basic Requirements 5 Classification of Foundation Rock-soil and Engineering Characteristic Indexes 5.1 Rock-soil Classification 5.2 Engineering Characteristic Indexes 6 Subgrade Design 6.1 Buried Depth of Foundation 6.2 Bearing Capacity Calculation 6.3 Deformation Calculation 6.4 Stability Checking 7 Foundation 7.1 General Requirements 7.2 Raft Foundation 7.3 Spread Foundation 7.4 Strip Foundation below Column 7.5 Pile Foundation 7.6 Rock Bolt Foundation 8 Excavation Engineering 8.1 General Requirements 8.2 Design Calculation 8.3 Soil Foundation Pit 8.4 Rock Foundation Pit 9 Inspection and Monitoring 9.1 General Requirements 9.2 Inspection 9.3 Monitoring