期刊论文

Yang, S.-J.(cute1088@sina.com)

中文

煤炭学报

0253-9993

2010

35

4

551-554

10.13225/j.cnki.jccs.2010.04.013

国家自然科学基金资助项目（50974076） 湖南省自然科学基金资助项目（06JJ50084 07JJ3090）

本校为第一且通讯机构

依据岩体力学参数的统计分布规律随机产生参数向量样本,进行盘区开采全过程的有限元方法(FEM)数值模拟,为每个开采步骤获得人工神经网络(ANN)建模所需的参数向量和应力向量样本数据对. 依据莫尔库仑强度准则,建立各开挖步骤的矿柱稳定性的功能函数,并构造功能函数的隶属度函数. 应用蒙特卡罗模拟(MCS)方法计算矿柱每个开采步骤的模糊可靠度,获得矿柱动态模糊可靠度变化曲线,可为盘区开采的结构参数优化和开采顺序设计提供参考. 该方法避免了对功能函数的概率密度函数求解,并大量减少了数值模拟计算次数和计算时间. 用动态模糊可靠度对云南昭通铅锌矿Ⅰ号矿体盘区开采方案进行数值模拟计算和分析...

According to the statistic distribution of mechanical parameters for rock mass, sample vectors were generated randomly for the finite element numerical simulation of entire panel mining construction process, and parameter vector and stress vector sample data were obtained for artificial neural network (ANN) modeling at each panel mining stage. Based on the Mohr-Coulomb strength criterion, the performance function for the ore pillar stability at each construction stage was established and the membership function was constructed for the performance function. The fuzzy reliability was calculated ...