The testing results show that the porosity of sandstone decreases with increasing effective stress at the fixed temperature level, following the law of negative exponent . however, at the fixed effective stress level, the effect of temperature on the porosity of sandstone is very small ( 37.6 temperature variation ) 試驗結(jié)果表明,有效應(yīng)力對砂巖孔隙度的影響較大,在溫度一定的情況下,砂巖的孔隙度隨有效應(yīng)力的增加而呈負(fù)指數(shù)規(guī)律減??;而溫度變化(本試驗中的溫度變化范圍為37.6)對砂巖孔隙度的影響很小。
At the fixed temperature level, both the permeability and hydraulic conductivity of sandstone decrease with the increasing effective stress, following the law of negative exponent . at the fixed effective stress level, however, the function between hydraulic conductivity and temperature is not a monotone one 在溫度一定的條件下,砂巖的滲透率和水力傳導(dǎo)系數(shù)均隨有效應(yīng)力的增加而呈負(fù)指數(shù)規(guī)律減小,但在有效應(yīng)力一定的條件下,水力傳導(dǎo)系數(shù)與溫度之間的關(guān)系函數(shù)并非單調(diào)函數(shù)。