摘要
本文借助有限无法分析了采动、侧压系数对巷道底臌的影响，以及底板软岩层厚度、顶底和两帮围岩力学性质与底臌的关系，充分说明了巷道底臌不仅与底板的物理力学性质及应力状态有关，而且在很大程度上取决于顶板和两帮的状态，它们是不可分割的整体。通过现场实测，更进一步分析了具有不同底板软岩层厚度的巷道底臌量分布，以及采动影响前后巷道底臌量的变化，从而对影响巷道底臌的因素有了进一步的认识。
ith the help of FEM,the paper analysed theinfluence of mining,the coefficient of lateral pressure,thethickness of soft floor rock,and properties of surroundingrocks on the heave of flcor.On this theis it expounded thatthe flcor heave depends not only on the physical mechanicalproperties and stress conditions of the flcor,but inevitablyon that of the roof and sidewalls tO a great extent.Throughthe medium of field measurements,the paper analysed the statistical distribution of floor heave occurred in roadwayswith different thickness of floor and thevariation of heaving quantity undet the influence of mining,and then,set forth some new views on the factors influencing the heave of floors.
出处
《矿山压力与顶板管理》
1994年第2期43-46,共4页
Ground Pressure and Strata Control
