A METHOD FOR ESTIMATING EFFECTIVE POROSITY AND GROUNDWATER VELOCITY

被引：51

作者：

HALL, SH ^{[1
]}

LUTTRELL, SP ^{[1
]}

CRONIN, WE ^{[1
]}

机构：

[1] PACIFIC NW LAB, DEPT GEOSCI, RICHLAND, WA 99352 USA

来源：

GROUND WATER | 1991年 / 29卷 / 02期

关键词：

D O I：

10.1111/j.1745-6584.1991.tb00506.x

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Estimates of ground-water velocity, based either on Darcy's law or on the single-well drift and pumpback tracer method, require prior knowledge of effective porosity. That is, after field data have been collected, the equation for ground-water velocity, using either method, still contains the two unknowns, velocity and porosity. If the local hydraulic gradient is known and if a drift and pumpback tracer test is conducted at a well whose hydraulic conductivity has been determined, two independent functional relationships between velocity and porosity are established. By treating these functions as nonlinear simultaneous equations, a unique solution for the local velocity and porosity can be obtained.

引用

页码：171 / 174

页数：4