ANALYTICAL MODELING OF GROUNDWATER IMPACTS BY MINING

被引：2
|
作者：
KOCH, D
机构：
[1] Koch and Associates, Denver, CO 80210, United States
来源：
GROUND WATER | 1986年 / 24卷 / 02期
关键词：
HYDROLOGY - MATHEMATICAL MODELS - MATHEMATICAL TECHNIQUES - Algorithms;
D O I：
10.1111/j.1745-6584.1986.tb00998.x
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The equation for two-dimensional, vertically averaged steady-state flow to a finite-length line sink, a semiempirical expression for the radius of influence, and the theory of superposition are used to predict the impacts of excavations on ground-water flow patterns. The algorithm provides a rapid method for estimating the inflow to mine pits, and the impact of mines on the potentiometric surface. An accurate expression for the radius of influence is developed by comparison with analytical and finite-difference model solutions. The algorithm is an accurate estimate of drawdowns at longer times, when the steady-state approximation is appropriate.
引用
收藏
页码：224 / 230
页数：7
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