论文部分内容阅读
本文阐明用模糊数学中的综合评判方法确定煤与瓦斯突出的危险程度。该方法的原理就是先确定反映各因素(如垂深、瓦斯压力……)在突出中发生作用大小的权重矩■,和计算单因素评判矩阵■。再根据和■求出判断矩阵,由评判出突出、一般突出或严重突出三种类型。文中以谢一矿等16个矿为例进行了计算评判。在计算时以垂深、瓦斯压力、瓦斯放散初速度、煤的破坏程度、坚固性系数及作业方式六种单因素为权进行计算而得出评判矩阵。计算后与16例实际对比,评判正确的为12例,占75%。由于该方法在运算时考虑的因素较多,因而有可能作出较准确的评判,并且可以评判出发生突出的规模。
This article illustrates the use of fuzzy mathematics in the comprehensive evaluation method to determine the danger of coal and gas outburst. The principle of this method is to first determine the weight moment, which reflects the effect of various factors (such as vertical depth, gas pressure ...) in the protrusion, and calculate the one-factor evaluation matrix. And then according to and ■ find the judgment matrix , judged by prominent, generally prominent or serious prominent three types. In this paper, Xie Yi No. 16 mines, for example, were calculated and judged. In the calculation, the judgment matrix is obtained by taking six kinds of single factors as vertical depth, gas pressure, initial velocity of gas drainage, degree of destruction of coal, rigidity coefficient and operation mode. After calculation and 16 cases of actual comparison, the judge is correct in 12 cases, accounting for 75%. Due to the fact that this method takes into account many factors during calculation, it is possible to make more accurate judgments and to judge the size of the outstanding ones.