岩土力学Issue(3)：689-695,7.
多次干湿循环后土-水特征曲线的模拟
Simulation of soil-water characteristic curves during drying and wetting cycles
摘要
Abstract
Many researchers focus on deformation and strength of the soils experienced wetting and drying cycles. But few researches have been conducted on soil-water characteristic curve of the soils experienced wetting and drying cycles. Because the processing of suction equalization takes too long time, the studies of soil-water characteristic curve of the soils experienced drying and wetting cycles are mostly limited to a single wetting and drying cycle. But considering the variability of the actual climatic conditions encountered in geotechnical engineering and the complexity of natural environment, generally soils experience many drying and wetting cycles. Therefore the study of the soil-water characteristic curves of soils experienced many drying and wetting cycles is significant. On the basis of the existing experimental data about the variation of the drying and wetting curves with the numbers of drying and wetting cycles, a method is proposed by introducing a function of the number of drying and wetting cycle, which is capable of predicting the soil-water characteristic curve of soils experienced drying and wetting cycles. Once the first drying and wetting curves and plasticity index of the soil are given, the method can predict the soil-water characteristic curve of the soils experienced drying and wetting cycles.关键词
土-水特征曲线/干湿循环/预测/变形/强度Key words
soil-water characteristic curve(SWCC)/drying and wetting cycles/prediction/deformation/strength分类
建筑与水利引用本文复制引用
张俊然,许强,孙德安..多次干湿循环后土-水特征曲线的模拟[J].岩土力学,2014,(3):689-695,7.基金项目
国家自然科学基金项目(No.11272194)；地质灾害防治与地质环境保护国家重点实验室开放基金(No. SKLGP2013K009)。 （No.11272194）
