The average diameter decreases monotonically with increasing effectiveconfiningpressure, which is defined as the difference between confining pressure and pore water pressure.
试样的平均直径随着有效围压的增长而单调减小。在此，有效围压被定义为围压和孔隙水压之差。
2
The seepage velocity and penetrability coefficient appeared changing of the"Z"shape with the increase of the effective axial feed when the confiningpressure and gas pressure were constants.