【摘要】 城市区域的地下水是城市地质环境构成要素中最为活跃、动态变化最为剧烈的要素之一,是地质环境中重要的地质营力。城市建设引发的地下水变异,与岩土介质发生长期的相互作用,不仅影响着水、土的组份,也影响着水、土的性状。地下水变异对岩土的影响主要包括四种作用,即:物理作用、化学作用、力学作用、生物作用,称为地下水四场变异影响。水土作用主要是四场变异使土体的微细观结构发生变化,进而影响其宏观力学性质,产生一系列地质灾害和环境效应。文章着重探讨了地下水生物场变异对土结构性质的影响,提出该研究方向的重点、手段和进一步发展的方向。更多还原

【Abstract】 Groundwater is one of the most active factors in city geological environment,and also the most important outer geological power.Long time water-soil interaction not only has influence on the components of both water and soil but also on their properties.The impact of groundwater on soil includes mainly four kinds of function,namely: physical function,chemical action,mechanical function and biological function,which is called as the impact of four fields of groundwater variation.Water-soil interaction means the variation of micro-mini scale structure of soil due to variation of four fields,which has influence on the macroscopical mechanical property of the soil,and produces a series of geological calamities and environmental effects.The paper discusses the impact of biological field variation of groundwater on soil structure and nature.Finally it puts forward the focal point,methods and the further direction of the research in this field.更多还原