resources;  Duration;  Optimize

Under the condition of limited resources, through a series of optimization steps with limited resources and shortest construction period, the construction goal with the shortest construction period is achieved, and a variety of optimization effects are evaluated. It is pointed out that although this optimization method can achieve the shortest duration, it cannot guarantee the optimal effect of resource distribution. It is proposed that a reasonable resource limit should be determined first according to the actual situation of the project, and the shortest duration should be obtained according to the optimization step of limited resources - shortest construction period according to the resource limit; Then, under the premise of fixed minimum duration, the optimization scheme of resource balance is carried out, so as to achieve the best resource distribution and application effect with the shortest duration and balanced resources.