期刊论文

Ding, De-Xin

中文

岩土工程学报

1000-4548

2014

36

11

2078-2085

10.11779/CJGE201411014

国家自然科学基金项目（10975071）；

本校为第一且通讯机构

为了掌握堆浸铀矿堆非抱和区的水力学特性,根据多孔介质的液体流动控制方程和描述水力学性质的van Genuchten模型,阐述了堆浸铀矿堆水力学特征参数的数值反演模型。接着,选用来自某铀矿山新堆浸场分形维数D=1.8的铀矿石样,利用自制的一维液体非饱和渗流试验装置,测定了不同喷淋强度下试验柱底部的累计排水量和5个不同高度矿样内的含水率。最后,利用HYDRUS-1D软件获得了试验样本在注水期间和排水期间的水力学特征参数。结果表明:1数值反演方法确定的水力学特征参数能很好地与实际情况相匹配,参数估算结果可用于工程实际;2注水期间和排水期间需要分别确定对应的水力学特征参数;3注水期间反演估算获...

In order to understand the hydraulic characteristics of the unsaturated zone in uranium ore heaps using heap leaching technology, a numerical inverse model is established according to the fluid flow control equation for porous medium and van Genuchten model describing hydraulic properties. Then, the self-designed experimental devices consisting of a column for one-dimensional unsaturated flow of liquid are fabricated and used to measure the accumulative flux at the bottom of the column through the uranium ore with the fractal dimension of 1.8 from a uranium ore heap using heap leaching technol...