入渗条件下粉煤灰基质的水分运动特征及其模拟  

Water Movement Characteristics and Its Simulation of Fly Ash Substrate under Infiltration Condition

作　　者：单昆仑[1] 谢飞[1] 高艺[1] 黄书旺 

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232000

出　　处：《安徽农业科学》2015年第14期263-265,共3页Journal of Anhui Agricultural Sciences

基　　金：安徽省大学生创新创业训练计划项目(AH201410361106);安徽理工大学大学生科研项目(ZY1402)

摘　　要：为了研究确定Richards方程能否很好地描述粉煤灰水分运动特征,采用试验结果与软件模拟结果进行对比的方式获得Richards方程的描述效果。在试验阶段,对土柱模型分别进行不接地下水和接地下水两种情况下的水分运动模拟,获取粉煤灰的相关水力学参数;软件模拟阶段,利用Hydrus-1D软件来建立应用Rechards方程描述的粉煤灰水分运动模型。将两者的试验数据进行拟合对比后,发现当不接地下水时,Rechards方程能较好地描述粉煤灰的水分运动特征;但当接地下水时,应用Rechards方程对粉煤灰水分运动进行描述时会存在较大的偏差。In order to determine Richards equations can be well described with fly ash water movement characteristics, using software simulations and experimental results obtained for comparison Riehards equations to describe the effect. In the experimental stage,each of soil eolumn model is not picked up on the ground and two eases of water movement simulation of groundwater, gets the hydraulic parameters of coal ash ; software simulation phases, Hydrus-lD software to build applications Reehards equation model of fly ash water movement. Fitting the experimental data comparing the two, reached the following eonclusions ：while not to receive ground - Reehards equation can better describe the characteristics of fly ash water; but when equation describing water movement of fly ash can be very large deviations.

关 键 词：粉煤灰 水分运动 土柱 RICHARDS方程 

分 类 号：S181.3[农业科学—农业基础科学]