【摘要】 取三峡永久船闸高边坡花岗岩与山西万家寨水电站高边坡灰岩试样分别进行不同围压条件下全应力-应变过程渗流试验.试验结果表明,岩石变形过程渗透性与变形破坏形式密切相关,岩石在破坏前、后不同变形阶段渗流特性具有明显的不同.在破坏前的弹性变形乃至屈服阶段,渗透性较弱且随变形的变化不明显;岩样破坏至应变软化段,渗透系数急剧增强并达到渗透峰值.在试验的基础上进一步探讨了岩石全应力-应变过程渗流特点之机理.更多还原

【Abstract】 Seepage test was carried out on the granite specimens which were taken from the high slope at the permanent shiplock of the Three Gorges project, and limestone specimens which were taken from the high slope at the Wanjiazhai Hydropower Station in Shanxi Province, under several surrounding pressures. The test results showed that the rocks have obviously unlike seepage characteristics before and after destruction of rocks; and the permeability behavior of the rock during deformation has a clearly correlation with the style of deformation destruction. On the basis of tests, the mechanism of seepage characteristics of complete stress-strain process is discussed.更多还原