摘要
利用模拟库水位实验仪器,研究水位周期性涨落消落带滑带土渗流作用,对比滑带土天然样、浸泡样及渗透样抗剪强度特征.研究渗透作用对滑带土强度弱化的规律,得到了滑带土残余强度与渗透压力-时间之间的拟合公式,为消落带滑带土强度参数取值提供理论基础.同时也为消落带滑带土力学强度判识提供定量化参考.
By using self-made instrument,the seepage of the slip soil under the periodic change of the reservoir water level is simulated.The shear strengths of natural soil samples,soaked soil samples and seepage samples are compared.The law based on which seepage influences the strength of slip soil is studied.A fitting formula describing the relationship between the residual strength of slip soil and seepage pressure-time is obtained.It provides theoretical foundation for the parameter valuation of slip soil in the water-level-fluctuating zone.In addition,this formula also provides a quantitative reference for strength identification of slip soil.
出处
《武汉理工大学学报（交通科学与工程版）》
2016年第2期345-350,共6页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金项目资助(41272307)
关键词
滑带土
渗流
强度弱化
残余强度
slip soil
seepage
strength weakening
residual strength
