【作者】 颜斌； 倪万魁； 刘海松；

【Author】 YAN Bin~①NI Wankui~①LIU Haisong~(①②)(①College of Geology Engineering and Geomantics,Chang’ an University,Xi’ an 710054)(②Institute of Civil Engineering and Urban Construction,Jiujiang College,Jiujiang 332005)

【机构】 长安大学地质工程与测绘工程学院； 九江学院土木与城建学院；

【摘要】 考虑到黄土地区气候特征和地下水的埋藏深度,城市固体废弃物填埋后,其淋洗液主要是以雨水入渗而产生,则上覆土层的厚度应该根据降雨入渗的深度而确定;根据土壤物理学和饱和-非饱和渗流理论,利用土体颗粒分析试验,求得土水特征曲线以及渗透曲线;通过有限元数值模拟,可得各种降雨条件下的水分入渗规律,为填埋场的顶层设计与淋洗液的溶质运移提供参考与依据。更多还原

【Abstract】 Considering climatic characteristics and burial depth of groundwater in loess region,the main solute eluent source is from the rainwater infiltration after municipal solid waste was filled to cover up,the thickness of covered soil should be design by rainfall infiltration depth.According to soil physics and saturated - unsaturated seepage theory,make use of grain size analysis experiment,we can obtain soil - water characteristic curve and permeability curve.Through numerical simulation with finite element method,we can understand moisture infiltration law under various rainfall conditions,which offer reference and principle to the covered layer plan of landfill and solute transfer about eluent.更多还原