Study Of Methods And Application On Schedule Management Of Construction Project

China has become one of the biggest construction markets in the world.The researches and improvements on construction project management are required urgently for Chinese huge construction practices.Schedule management is one of the most importmant parts of construction project management.The effect of schedule management may determine a construction project is success or failure.Available researches on the schedule management have achieved abundant results,but they are almostly based on some conditional hypothesis and simplification,which leads to some deviatons between their practicability and the actual fitting degree.Therefore, considering of systematicness and practicability,this dissertation explore some key issues for construction project schedule management in the field of determining schedule goal,establishing schedule progress plan,controlling schedule execution, analyzing construction delay and claims.The main research and results are as the following:(1) This dissertation evaluates a series of methods for construction schedule determination and analysis.This research identified the applicable conditions, characteristics and limitations of these methods.An optimization model using Genetic Algorithm and Monte Carlo simulation is built to obtain an optimization sequence of works process in concurrent engineering projects.A new more practical and visible schedule control chart model based on Bar Chart and CPM is established.It is useful for analysizing responsibility-allocated effectively,and schedule control under multi-ristriction events.(2) Using mixed integral programming method,this study puts forward the time-cost optimize general model that having considered the linearity,non-linearity and dispersed time-cost relationships.Then,the time-cost optimize models subject to construction time and resources were developed.By using graph theory,a time-cost optimize graph theory model are also established.These models may overcoming some limitations existed in traditional methods,improving the optimize level,and having advantages of calculation simple,speedy and accurate.Especially,they may also deal with complex time-cost optimize issues.(3) This dissertation uses system dynamics theory to seek the effects of schedule pressure on construction performance.A model of effects of schedule pressure on construction performance is then be developed and presented.The model may apply to identify the latent problems when the involved parties facing schedule pressures,and helps to supply some related countermeasures.(4) Using literatures review and statistics method,this dissertation identifies and analyzes the causes of delays in construction projects in different countries or regions. Moreover,Tri-dimension(party,time,and category) model of causes of delays in construction projects is established.A questionnaire survey method applied to analyze delay reasons of a large water transmission project in China.The general procedures of claims for extension of time,and the proof and evidence and their management are also studied.