摘要
腾发覆盖层的原理是降雨时储存水分,随后由地表蒸发和植被蒸腾向外界排出水分来减少水分入渗,其造价低、抗干缩.和抗不均匀沉降的能力强,被认为是最有应用前景的替代型覆盖层。本文利用有限元软件(geostudio)采用数值模拟的方法,在不同强度降雨条件下腾发覆盖层的水的运移规律,验证毛细阻滞型覆盖层含水率分布模型在不同类型降雨下土层内体积含水率的变化以及准确性。
Evaporating overburden is considered to be the most promising alternative overburden because of its low cost,strong resistance to shrinkage and uneven settlement.In this paper,the finite element software(GeoStudio)is used to simulate the water movement law of evaporating overburden under different rainfall intensity,and the accuracy of capillary blocking overburden water content distribution model is verified under different rainfall types.
作者
邓传雄
DENG Chuanxiong(School of hydraulic engineering,Changsha University of Technology,Changsha 410000,China)
关键词
腾发覆盖层
降雨入渗
数值模拟
evapotranspiration overburden
rainfall infiltration
numerical simulation
