摘要
根据包辛涅斯克 (Boussinesq)非稳定流微分方程 ,得到了库水位下降时坡体内浸润线的简化计算公式 ,在此基础上 ,用流网的性质来确定土条边界上的静水压力 ,证明了渗透力与土条中的水重和周边静水压力是一对平衡力 ,并用渗透力代替土条周边水压力的方法得到了滑坡稳定性评价的公式 。
Based on the Boussinesq m s differential equation for the unsteady seepage the simplified formula for the phreatic surface in landslide mass is obtained under the drawdown conditions.The boundary water pressure is determined by the properties of flow nets.It is proved that the seepage force is equilibrant to the water weight and the water pressures around the slice.The formula used for the stability evaluation of landslide is established by using seepage forces instead of the water pressures Finally,the effects of factors on the stability of landslide are discussed from the project example.
出处
《工程勘察》
CSCD
北大核心
2004年第1期26-30,35,共6页
Geotechnical Investigation & Surveying
基金
西部交通建设科技项目 (2 0 0 2 31 80 0 0 4 9)
