摘要
黄土之所以有自重和非自重湿陷之分,与其颗粒组成、可溶盐含量及化学胶结类型有关。可溶盐含量和地层的组合关系是造成自重湿陷黄土地区性差别的重要原因。评价黄土的建筑性质,既要以力学性质指标作为依据,又要充分考虑地层的成层条件、各层土的湿陷强度及其空间组合关系。
The division of loess into self-weight collapse and self-weightnon-collapse is based on the grain composition, contents of solublesalts and chemical cementation type. The contents of soluble salts andstrata association contributed to regional difference of self-weight col-lapse loess. The evaluation of construction behavior of loess may beconsidered on the basis of the mechanical performance index and thestratigraphy prerequisite of strata, collapse intensity of soils andtheir space-relationship.
关键词
黄土
湿陷类型
黄土结构
西安
兰州
collapse loess
texture of loess
soil mechanical property
Xi'an
Lan zhou
