水文地质工程地质2011，Vol.38Issue(6)：62-67,83,7.
蠕变条件下吹填软土结构强度形成研究
A study of the formation of structure yield stress subject to creep of the soft dredger fill
摘要
Abstract
Soil structure has a significant influence on its engineering mechanics behavior. To investigate the form of structure yield stress of the soils, the creep tests and micro-structure are conducted on the soft dredger fill in the Tianjin Binhai New Area. The results indicate that the influence of the creep on the soil structure is a comprehensive process, among them, drainage is the most critical condition. Base on this, the structure yield stress are effected by the cell pressure and deviator pressure, increasing with time. Conversely, no obvious variations occur in the structure yield stress of the soils. Through micro-structure analysis, it is known that the essence of the form of structure yield stress by creep of small deviation stress is the gradual stability procession of micro-structure.关键词
吹填软土/蠕变/结构屈服应力/微观结构Key words
soft dredger fill/creep/structure yield stress/micro-structure分类
建筑与水利引用本文复制引用
杨爱武,闫澍旺,杜东菊..蠕变条件下吹填软土结构强度形成研究[J].水文地质工程地质,2011,38(6):62-67,83,7.基金项目
天津市科技发展计划项目(04311381) （04311381）
天津市科技发展计划重点科技攻关项目(06YFSZSF 04000) （06YFSZSF 04000）
天津市科技创新专项资金项目(07FDZ DSF02101). （07FDZ DSF02101）
