Construction Management Design And Research On Net-Plan Application On Zhongxiang Hanjiang Bridge In Chang-Jing Railway

In this thesis, the construction management is sysmetrically designed and decribed. There emphasize the steel cofferdam methods in the base of pier 58# and 60#, as well as the cantalever pour method for the main beam. The key techniques and methods of cofferdam and nacelle are analysesed.The application and problems for CPM net-plan technique are introduced and discussed together with some samples in Hanjiang Bridge construction. The skill for the net-plan chart about logic relationship is given during the analyzing of net-plan chart of cantalever pouring beam. The method for the computation of time parameters and the time limit for a project are summarized taking the construction of peg base as an example.The optimization analyses are done on the resources, schedule and expenses about Hanjiang Bridge contruction. The resource optimization method, in which the fluctuation for resources be made minimum, is analysed through an example of labor consume. The time limit and expense optimization methods are given with the example for the build of the base of pier 58# and 36#. In this method, the time in some key lines or key works are condesed, of course, with some acceptable increase in expense.At the last of this thesis, some discusses are presented about the existing computer programs for net-plan fo engineering construction in the light of the application in Hanjiang Bridge.