Acceleration Cost Calculation for Diversion Tunnels Based on Quota Regression Analysis
The construction of diversion tunnels is affected by uncertain factors such as hydrology,geology,and envi-ronment,so contractors are always required acceleration caused by projects delay.Aiming at the single project delay event of the diversion tunnel of hydropower station,the engineering change plans and their theoretical delay period were dis-cussed.A method that calculates acceleration costs based on the quota regression analysis was proposed.A diversion tun-nel case of Baihetan Hydropower Station show that this method can determine the relationships between each delayed e-vent and the influence of processes,and identify the fact that the contractor is not responsible for the delay and accelera-tion as well as calculate complete acceleration time,processes and costs,which provide a basis for engineering claims.
diversion tunnelsacceleration costquota regression analysisclaimhydropower station construction