摘要
非饱和土水气联合测试仪测定渗水系数的关键是渗水时间的准确确定 .本文利用均方差来监测渗气系数的变化 ,从而确定出渗水时间 ,通过实验比较 。
It is key problem to determine the time interval of flow for measuring the water permeability coefficient by the apparatus of water_air movement.In this paper,the method of determine time interval of flow is proposed based on monitoring the process of air permeability.The water permeability coefficient are compared with that from the literatures.The results are identical,which proves that the determine time interval of flow is rational by using the proposed method.
出处
《西安工业学院学报》
2004年第3期288-291,共4页
Journal of Xi'an Institute of Technology
关键词
非饱和土
水气联合测试仪
渗水稳定时间
渗水系数
渗气系数
unsaturated soil
apparatus of water-air movement
time interval of flow
water permeability coefficient
air permeability coefficient
