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许多传统的矿井通风网路分析法,象哈迪·克罗斯选代法及其修正法,在解复杂问题时不一定具有收敛性,而且有局限性.所编写的计算机解算程序通常编码复杂,运算时间过长,并需要估计初始风量.采用线性规划法和统筹法解算通风网路,只能够分析受控风流的情况.自然流分配问题,例如在矿井通风网路中碰到的风流自然分配问题,都能够通过某些适用于网路流规划的运筹学方法进行模拟.这个问题被认为是一种可分的、凸的极小费用网路流问题(convex minimum-costnetwork flow).这样一个等价性问题已经被详细说明.文中还提出了一种求解变形的通风网路问题的分段线性化方法,介绍了采
Many of the traditional mine ventilation network analysis methods, such as Hardy Cross’s substitution method and its corrections, do not necessarily have convergence and limitations in solving complex problems. The computer programs that are written generally encode complex , The calculation time is too long, and the initial air volume needs to be estimated.Using linear programming and co-ordination to solve the ventilation network, only the situation of the controlled airflow can only be analyzed.The natural flow distribution problems, such as the airflow encountered in the mine ventilation network The problem of natural distribution can be simulated by some operational research methods that are suitable for network flow planning, which is considered as a separable convex convex minimum-cost network flow. Such an equivalence problem has been described in detail.This paper also proposes a piecewise linearization method to solve the problem of ventilation network with deformation,