1. Project name: Flyover at D4 intersection
  2. Location: Nghi Loc Dist. – Nghe An provine
  3. Year of commencement: 2016
  4. Year of completion: 2018

Highlights of the project

Flyover with span diagram: 39,15+42,5+45+36,4+2×33,9+38,7+43,95 m; The flyover is 319,7m long with Super-T girder structure

Description of advanced science, technology and software applications:

  • Reasonable intersection solution was selected to connect route D4 with NH1A in the condition that there are many restrictions (crossing the old NH1, NH1A, North-South railway and Le canal) simultaneously without affecting toThe memorial of Nha Le channel to minimizes ground clearance.
  • The two types of structures are simple Super T girder bridges combined with continuous PC hollow slab beams which are used for Flyover at D4 intersection
  • Overall calculation of continuous hollow girder bridge by RM V8i software, calculation of local bearing positions by Midas FEA, calculation of pile foundation by FB Pier software