GB 50339-2003 Code for acceptance of quality of Intelligent building systems(Text of Document is in English) - Beijing translation compay

Contents
1 General rules
2 Major symbols
3 Action on pipeline structure
4 Basic design provisions
5 Basic construction requirements
Annex A Integral deformation modulus of pipe-side backfill
Annex B Determination of normal value of vertical earth pressure of pipe top
Annex C Calculation method of normal value of action of surface car load to the pipeline
Annex D The calculation of maximum fracture width of reinforced concrete rectangular section when it's under bending,large eccentric tension states
Annex E Explanation of wording in this standard