GB 50446-2017
Code for construction and acceptance of shield tunnelling method

Standard No.
GB 50446-2017
Language
Chinese
Release Date
2017
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Lastest
GB 50446-2017
Replace
GB 50446-2008
Scope
This specification is applicable to the construction and acceptance of prefabricated segment-assembled tunnel projects constructed by the shield method.

GB 50446-2017 Referenced Document

  • CJJ 217 
  • CJJ/T 164 Standard for quality inspection of shield tunnel segment
  • GB 50010 Code for design of concrete structures
  • GB 50108 Technical code for waterproofing of underground works
  • GB 50204 Specification for construction quality acceptance of concrete structure engineering
  • GB 50205 Code for acceptance of construction quality of steel structures*2020-01-23 Update
  • GB 50308 Code for urban rail transit engineering survey
  • GB 50911 Code for monitoring measurement of urban rail transit engineering
  • GB/T 12521 Technical requirements for air diving decompression
  • GB/T 12897 Specifications for the first and second order leveling
  • GB/T 8923.1 Preparation of steel substrates before application of paints and related products.Visual assessment of surface cleanliness.Part 1:Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coa
  • JB/T 9186 Welding procedure specification for CO2 shielded arc welding
  • JGJ 107 Technical specification for mechanical splicing of steel reinforcing bars
  • JGJ 18 Specification for welding and acceptance of reinforcing steel bars
  • JGJ/T 104 Specification for winter construction of building engineering

GB 50446-2017 history

  • 2017 GB 50446-2017 Code for construction and acceptance of shield tunnelling method
  • 2008 GB 50446-2008 Code for construction and acceptance of shield tunnelling method



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