【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 ,说明按此种方法确定的渗水时间是合理的更多还原

【Abstract】 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.更多还原