1. The Ministry of Communications of P.R. China. Code for design of road tunnel (JTG D70-2004), Beijing: People’s Communications Press..
2. The Ministry of Communications of P.R. China. Technical specification of maintenance for highway tunnel (JTG H12-2003), Beijing: People’s Communications Press..
3. The Ministry of Communications of P.R. China. Technical specification of construction for highway tunnel (JTG F 60-2009), Beijing: People’s Communications Press..
4. The Ministry of Communications of P.R. China. General Code for design of highway bridges and culverts (JTG D60-2004), Beijing: People’s Communications Press..
5. The Ministry of Communications of P.R. China. Code for design of highway masonry bridges and culverts (JTG D61-2005), Beijing: People’s Communications Press..