【摘要】 本文根据渗流的连续性方程和有关的力学方程,分别推导出揭示岩石体积应变与孔隙中流体压力之间内在联系的两个基本微分方程。通过对这两个基本微分方程的对比分析,得出在完全封闭或相对封闭状态条件下,岩石体积的变化能引起孔隙中液体压力的很大变化,相反,气体压力的变化幅度却非常小的结论。同时,我们还解释了其它一些现象。最后,对煤层底板的突水机理提出了一些见解,并且,提出了一种加强底板抗动载能力的新方法。更多还原

【Abstract】 According to the Continuity equation of fluid and relevant mechanical equations, two basic differential equations are derived Which reveal the interrelation between the Volumetrie strain of the rock and the fluid pressure in the pores. Through comparison and analysis of these two equations, We have Come to a Conclusion that the Change of rock Volume Causes the liquid pressure in the pores a marked Change in a Completely or relatively closed state. On the Contrary, the Corresponding Change of gas pressure is very small, At the Same time, We have explained Some Ofher phenomena.Finally, we have presented some opinions for Water inrush mechanism at the floor of Coal Seam and have proposed a new method for strengthening the resistivity against dynamic load.更多还原