中南大学学报（自然科学版）2012，Vol.43Issue(6)：2338-2342,5.
对称协同开采人工矿柱失稳的突变理论分析
Analysis of catastrophe theory for artificial pillar instability in symmetric synergistic mining
摘要
Abstract
According to the materials mechanics theory, the synergistic effect mechanical model of roof-artificial pillar was established. By analyzing the deformation coordinated mechanism of the composite structure, the relationship expression of compression amount of the artificial pillar was derived. Based on the catastrophe theory, the cusp catastrophe model of artificial pillar destruction was constructed and the mechanical judgment expression under the necessary and sufficient condition of instability was derived. The results show that the artificial pillar's sudden instability has a close correlation with the rigidity ratio k and medium uniformity coefficient m. Through changing the artificial pillar's mechanics parameter and the geometric parameter, the roofs stability is regulated to a certain extent, which provides the basic mechanics basis for the cavity stress environment reconstructing and the artificial pillar's scientific design.关键词
采矿工程/协同开采/采空区/人工矿柱/失稳/尖点突变模型Key words
mining engineering/synergistic mining/cavity/artificial pillar/instability/cusp catastrophe model分类
矿业与冶金引用本文复制引用
陈庆发,古德生,周科平,苏家红..对称协同开采人工矿柱失稳的突变理论分析[J].中南大学学报（自然科学版）,2012,43(6):2338-2342,5.基金项目
中国博士后科学基金资助项目(2011491273) （2011491273）
广西自然科学基金资助项目(2011GXNSFB018011) （2011GXNSFB018011）
广西教育厅科研项目(200911MS01) （200911MS01）
广西大学科研基金资助项目(XBZ100126) （XBZ100126）
