摘要
为了预计某煤矿73下21(西)综采工作面推进对地表的影响,采用FLAC3D进行数值模拟,安排两轮均匀设计参数反演实验,并采用差分技术对数值模型的误差进行控制。研究结果表明:通过两轮均匀设计实验,能够获得较为可靠的岩体力学参数,可以假设反演值和实测值为数值模型的重复观测值,并可通过差分法对数值模型误差进行控制,提高预计效果。
In order to predict the influence of surface subsidence to the advancing of 73down21（ west） fully mechanized coal face of certain coal mine,the Flac3 Dsoftware is adopted to carry out numerical simulation parameters inversion by arranging two rounds of uniform design experiments. Besides that,the model errors are controlled by adopting the differential technology. The research results show that,the more reliable rock mass mechanics paramters are obtained by the two rounds of uniform design experiments,the numerical model inversion valus and measured values can be regarded as the repeated obseration values,besides that,the model errors can be controlled by using the differential technology so as to improve the prediction accuracy.
出处
《现代矿业》
CAS
2015年第1期17-20,共4页
Modern Mining
关键词
开采沉陷预计
参数反演
均匀设计
差分方法
数值模拟
Mining subsidence prediction
Parametric inversion
Uniform design
Differential technology
Numerical simulation
作者简介
周振宇（1982-），男，工程师，硕士，710032陕西省西安市。
