Study on mechanism of bid evaluation of hydropower project construction based on approximation ideal value

This paper constructs a project bidding and evaluation mechanism based on engineering value for an equilibrium of investment,quality and time limit,to ensure engineering value maximization with reasonable project cost at the stage of hydropower project implementation.In the mechanism design,approximation ideal value method is used to optimize goal function under constraints of commercial proposals,time limit and technology review.The tender provides quadratic optimization of the function weights through analytic hierarchy process variable weights,and finds the best solution from the alternatives of function weights by approximations to ideal solution ranking and by calculation of bidding project engineering value and the largest value of engineering.Through case analysis,the mechanism can meet the goal of engineering value maximization and it is better operative and more suitable for medium and large-scale complex projects.