摘要
通过分析渗水井与陷落柱的联系和区别,借鉴渗水井等相关理论,建立了预测陷落柱突水的物理模型,确定了陷落柱的突水危险区域。陷落柱与采动工作面之间的突水危险区域可分为三部分:陷落柱周边围岩塑性破坏区、采场前方塑性破坏区与陷落柱周边渗透区域。根据弹塑性力学、流体力学的相关理论,推导出了预测陷落柱突水的理论判据,可用于矿井陷落柱突水灾害的预测。
By analyzing the relation and difference between collapse columns and leakage wells, a physical model of predicting water inrush caused by collapse columns was established in combination with the correlative theories of leakage wells, the hazardous area of water inrush in the model was identified. The hazardous area of water inrush between collapse columns and working face divided into three parts： plastic failure zone around the collapse column, plastic failure zone ahead of the mine stope, and permeability zone around the collapse column. A theoretical criterion of predicting water inrush caused by collapse columns was proposed on the basis of plas- toelasticity and hydromeehanies. This criterion can be used to predict water inrush caused by collapse columns in a coal mine.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2010年第10期1243-1247,共5页
Journal of University of Science and Technology Beijing
基金
国家重点基础研究发展计划资助项目(No.2007CB209402)
国家自然科学基金重点资助项目(No.50834005)
煤炭资源与安全开采国家重点实验室基金资助
关键词
突水
陷落柱
物理模型
理论判据
煤矿开采
water inrush
collapse column
physical model
theoretic criterion
coal mining
