【摘要】 基于振动排水固结试验,对镇江地区河漫滩沉积相软土的动力特性进行了研究,并对该地区软土在动力荷载作用下的排水固结机理进行了解释。通过振动排水固结试验,对在考虑振动荷载参数(频率、幅值、围压、波形)条件下软土的排水速率、应变速率以及物理力学指标的变化进行了分析。结果表明:相对于单一的静压固结排水方法,振动固结排水可以有效加速软土的排水速率,降低孔隙比,提高其抗剪强度,从而提高软土固结排水效果,这对镇江地区河漫滩沉积相软土地基的处理具有借鉴和指导意义。更多还原

【Abstract】 Based on vibration drainage consolidation laboratory,the dynamic characteristics of flood land sedimentary soft soil is studied in this paper.And the drainage consolidation mechanism of soft soil is explained under dynamic loading.Through vibration drainage consolidation laboratory,the drainage rate,strain rate and physico-mechanical index of soft soil are analyzed under dynamic loading.The conclusion are as following:compared with static pressure consolidation drainage,the vibration method is more effective to accelerate drainage,reduce void ratio,increase shear strength of soft soil,which has reference and guiding significance in foundation treatment.更多还原