论文部分内容阅读
为提高黄土的强度和稳定性,采用新型高分子材料SH固化黄土,就固化黄土的击实、液塑限特性和土—水特征曲线进行试验研究。结果表明,固化黄土的最优含水率随SH掺量的增加而增大,而最大干密度则呈减小趋势;SH掺入后,黄土的液塑限、塑限指数均明显增大,但液限、塑性指数随SH掺量的增加先增后减;固化黄土的土—水特征曲线随着干密度的增大由陡变缓,干密度不变时,相同基质吸力下,SH掺量大的试样体积含水率大,固化黄土持水特性强,水稳定性高。
In order to improve the strength and stability of loess, SH solidified loess, a new macromolecule material, was used to study the compaction, liquid-plastic limit characteristics and soil-water characteristic curves of solidified loess. The results show that the optimal moisture content of solidified loess increases with the increase of SH content, while the maximum dry density decreases. After SH incorporation, the liquid and plastic limit and plasticity limit of loess are obviously increased, Liquidus and plasticity index first increased and then decreased with the increase of SH content. The soil-water characteristic curve of solidified loess increased with steepness and dry density unchanged with the increase of dry density. Under the same substrate suction, Of the sample volume moisture content, solidified loess water-holding characteristics, high water stability.