摘要
模糊影响函数法考虑了采场周围煤岩体对地表下沉及水平位移的影响。影响函数的形态和数值随着所计算的地表点的位置和采区积分单元的位置不同而变化,这是区别于传统概率积分方法的关键。用模糊影响函数法得到的结果能自动产生拐点偏移和与实际情况相符的非对称性分布,其计算精度得到大幅度提高。大量的实测结果与用该方法得到的结果十分吻合。适用于参数反分析的程序能提供较好的参数优化结果。
Fuzzy influence function method takes into account of effect of rockmass around the workings on surface subsidence and displacement. Its shape and value change with the change of position of calculating points on the surface and the position of elements integrated in the extracted area underground, which is different from the conventional influence function with normal distribution curve obtained by probability integral method.The results obtained by using fuzzy influence function method can automatically give rise to shifting of inflection point and asymmetry, suitable for the actual conditions. Meanwhile, the accuracy of calculation is greatly improved. The measured data show good coincidence with the calculated data.The program for back analysis of parameters can approach satisfactory results of optimization.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1993年第4期25-35,共11页
Journal of China Coal Society
关键词
地表移动
模糊影响函数
地表下沉
surface subisidence
fuzzy influence function method
supporting effect of coal and rockmass
