用综合评判法选择回采工作面通风巷道的布置形式

正确选择回采工作面通风巷道的布置形式（以下简称：“布置形式”），是合理布置采面风道的前提，它直接关系到采面的安全生产和经济效益。布置形式通常由工程费用、通风电费、增风的可能性、开采集中程度、瓦斯和煤尘爆炸的危险性、发火的危险及环境的优劣等因素确定，其中大部分因素属定性软指标。为了建立选择布置形式的数学模型，笔者用一组模糊数对上述指标进行定量硬化，并根据不同因素的状态特征建立起隶属函数．这样，对任一种布里形式都可用该模型得到相应的模糊关系矩阵，最后按一定的实测参数通过模糊变换，得出其综合评判结果。由于该方法在计算中考虑的因素较多，因此在选择布置形式时可能作出较正确的判断。图2，表2参4

SELECT THE LAYOUT OF VENTILATING ROADWAY OF COAL FACE BY THE SYNTHETIC EVALUATION

It is the first importance for arranging reasonably the ventilating roadway of the coal face select correctly the layout of the ventilating roadway. (the layout for short). The layout is related directly to the salt production and economic profit of coal face. It is defined by the engineering cost, ventilation power rate, the probability of enlaging the ventilation,mining concentrated intensity, the danger of gas and dust explosion, ignition hazard and environment excellent or bad etc, most of Which are qualitiativly soft index. In order to set up the mathematical model of selecting the layouts, the author hardened quantitativly the aforementioned index by a series of fuzzy numbers, and established the attaching function according to the status feature of different factors .Thus, for any layout, its fuzzy relating rectangular matrix by the model can be gotten, finally, reaches the synthetic evaluation result by the fuzzy transforming according to some extent measured parameter. Considering the more factors of this method in calculation, it can evaluate more correctly the selected the layout. 2figs., 2tabs., 4refs.