植被根系影响下边坡渗流场分析

Seepage Analysis of Slope with Respect of Plant Roots

植物根系同时存在边坡的饱和与非饱和区,根系通过吸收和蒸腾坡体内的水分对渗流场的重布产生明显的影响,是一个涉及饱和非饱和渗流的复杂问题。将根系吸水效应考虑为渗流控制方程中的源汇项,建立考虑根系吸水效应的饱和-非饱和渗流控制方程,并通过一个算例分析其对坡体渗流场的影响。

Plant roots are distributed in both saturated and u nsaturated zone. Seepage field redistribution is greatly affected by the roots a bsorbing and transpiring water in slope, which is thought as a complicated probl em involved with. Considering the water-absorbing of roots as source-sink item , the controlling equation of saturated-unsaturated seepage is established. One calculating example is given to analyze the effects of roots to seepage field.