The control model of engineering cost in construction phase of high-speed railway

To improve the efficiency of cost control in the high speed railway construction phase, we set up the model of earned value and install FBCWS index, through the contrast between FBCWS index and ACWP' index, we improve the efficiency of cost control in construction stage, so that we can do the better in the direction and control before costs incurred and make the construction cost control management more scientifically and effectively in the construction phase of high-speed rail project.