摘要
华北煤田广泛发育有岩溶陷落柱,对煤矿安全生产有较大影响。该文论述了陷落柱的特征及其顶底部剪切破坏突水模式及判据。应用岩石破裂过程渗流应力耦合分析系统,对陷落柱及其周边应力分布进行了数值模拟研究,得出了陷落柱及其周边剪切破坏明显增加的结论。
The fall columns are well developed in North China coal field and they have great influences to the safety of mine production, The character and the water inrush model of shearing failure of the fall column are stated. The stress distributing of the fall column and its sides is numerically simulated, and the conclusion that the shearing failure has obvious increase around the fall column and its sides is educed by using the Coupling System of Flow ＆ Solid in Rock Failure Process Analysis.
出处
《山东煤炭科技》
2009年第4期126-127,共2页
Shandong Coal Science and Technology
关键词
华北煤田
陷落柱
突水模式
数值模拟
North China coal field fall column water inrush model numerical simulation.
