一种新的土壤冻融特征曲线模型

付子腾, 吴青柏, DYCK Miles, 何海龙

A new model to describe soil freezing-thawing characteristic curve

Ziteng FU, Qingbai WU, Miles DYCK, Hailong HE

图1 SFTC和SWCC的比较，数据来自Wen等［46］（为了保证比较的客观性，分别选择同一种土壤在饱和状态下首次冻结与脱湿过程中所测的SFTC与SWCC，在试验之前土体具有相同的密度。图中上部X轴表示基质势，对应SWCC；下部X轴表示温度，对应SFTC，两条曲线共用同一个Y轴）

Fig.1 Comparison of soil freezing-thawing characteristic curve （SFTC） and soil moisture characteristic curve （SWCC） with digitalized data from Wen et al［50］ （Note： in order to ensure the objectivity of the comparison， SFTC and SWCC were measured during the first freezing cycle and drying cycle with the same saturated soil sample. In this figure， the upper X-axis represents the matrix potential， corresponding to SWCC； the lower X-axis represents the temperature， corresponding to SFTC， and the two curves share the same Y-axis）