中文摘要：

对热．冷反复变化过程中饱和粘性土的热固结特性进行了室内试验。试验表明，随着试样温度的升高，温度的上升速率逐渐减慢，而在降温过程中则正好相反。而且，温度变化过程与温度荷载循环次数、试样所受到的围压无关；不排水加热过程中会诱致显著的孔隙水压力，而第2个温度循环过程要比第1个温度循环过程诱致的孔隙水压力要小；在不排水温度下降过程中，试样内先产生负的孔隙水压力，当温度下降至设定的温度值后，孔隙水压力又开始上升，随后转化为正的孔隙水压力；如果允许试样排水（或吸水），则试样在加热和降温后的等温过程一般表现为收缩排水过程，且加热后所引起的排水体应变要远大于降温后所引起的排水体应变。

英文摘要：

The thermal consolidation characteristics of saturated clay under cyclic heating and cooling are studied by laboratory tests. Test results show that the temperature rising ratio of specimens decreases with the increasing of temperature. However, the temperature dropping ratio is just contrary. Furthermore, the pattems of temperature variation of specimens during the period whether the processes of rising or cooling are independent of the cyclic number of thermal loading and confining pressure. An obvious pore pressure is generated by heating in undrained conditions. It should be pointed out that the pore pressure in the first number of cyclic thermal loading is much larger than that in the second number of cyclic thermal loading. On the other hand, a negative pore pressure is first induced by cooling in undrained conditions. Then, when the temperature is dropped to the required temperature value, the pore pressure begins to rise and subsequently becomes to be a positive pore pressure. Whether after the heating processes or after the cooling processes, a drainage effect of specimens is displayed generally in drained conditions. Furthermore, the volumetric strain induced by heating is much larger than that induced by cooling.