潜水非稳定渗流边界条件处理方法研究  

Boundary Conditions Treatment Method in Un-confined Unsteady Flow Seepage Process

作　　者：贾志峰[1] 李文宾[1] 贾志锐 

机构地区：[1]长安大学环境科学与工程学院,西安710054 [2]济源市煤炭高压开关有限公司,河南济源459000

出　　处：《灌溉排水学报》2013年第3期44-49,共6页Journal of Irrigation and Drainage

基　　金：高等学校学科创新引智计划项目(B08039);陕西省自然科学基础研究计划项目(2011JQ5013);陕西省自然科学基础研究计划项目(2010JM5013)

摘　　要：针对潜水非稳定渗流的边界问题,以河间地块模型为例,研究不同边界位置条件下各时刻地下水渗流过程。结果表明,渗流场在未波及到假定的最小边界时,不同河流间距下地下水渗流过程相同;渗流场波及到边界时,相同地段累积差存在不为0的值,地下水渗流过程不完全相同。并结合研究区存在一个未知边界时况,将其应用于实际工程中。Block between rivers was taken as an example to study the boundary problems in un-confined un- steady flow seepage process. With different boundaries assumed and accumulated odds （S） defined, flow seepage process in different times was analyzed by setting different spacings between rivers. The results showed that the basically same change of groundwater table happened in each time under different bounda- ry distances when the seepage field did not reach the nearest assumed boundary, while the seepage field reached the boundary, not all S were zero and groundwater seepage was largely different in the same area under different boundary distances. The results were applied in an engineering example with an unbe- known boundary existing in study area, and there was no danger for B factory in three months when river level rose.

关 键 词：潜水 渗流场 边界条件 假定边界 

分 类 号：P641.2[天文地球—地质矿产勘探]