中文摘要：

为了加速软土地基固结排水过程,在传统竖井排水固结法的竖井中增设U型导热管,对U型导热管内的水进行预加热,并使其在管内循环,实现管-土之间热传递,以改善土的渗透性状。针对这一新的软基处理技术,本文首先通过研究渗流固结过程中的温度影响因子,建立了渗透系数与温度之间的关系。其次,基于理想竖井地基固结理论,建立基于温度修正的理想竖井地基固结度解析解。最后,分析了温度因素对理想竖井地基固结度及固结时间的影响规律。结果表明：同一时间因素下,温度越高,理想竖井地基的固结度越高,且温差越大,固结度差值越大;温度较高时到达某一固结度所需时间比温度较低时到达同一固结度所需时间少。在固结度较小时,温度因素对固结时间的影响并不显著;而固结度较大时,则固结时间差别较为显著。

英文摘要：

To accelerate the consolidation process,a U-shaped heat transfer tube is inserted into vertical drains,in which the water is heated and circulated. Correspondingly,heat transfer between pipe and soil is achieved,the permeability coefficient of soil is improved,and the consolidation settlement of the soil can be accelerated. In response to this engineering phenomenon,factors induced by temperature during the process of consolidation are examined. Analytical solution for the degree of consolidation by vertical drain with ideal drain assumption is deduced. The effect of temperature on the degree of consolidation is also analyzed. The results indicate that the degree of consolidation increases with increasing temperature,and the difference between the two method increases with the increase of the difference in temperature. For consolidation time,it needs less time to reach a certain settlement in a higher temperature than it does in a lower temperature. At the early stage of consolidation,there is no obvious difference in the consolidation time at different temperatures. The difference will become more obvious when the degree of consolidation continues.