HYDRAULIC CONDUCTIVITY AND UNFROZEN WATER-CONTENT OF AIR-FREE FROZEN SILT

被引：24

作者：

BLACK, PB ^{[1
]}

MILLER, RD ^{[1
]}

机构：

[1] CORNELL UNIV, ITHACA, NY 14853 USA

来源：

WATER RESOURCES RESEARCH | 1990年 / 26卷 / 02期

关键词：

D O I：

10.1029/WR026i002p00323

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Unfrozen water content and hydraulic conductivity data were obtained for an air‐free frozen Alaskan silt using a new form of an ice sandwich dilatometer/permeameter that was designed to allow control of effective stress in the granular matrix through appropriate adjustments of pressure in liquid surrounding a specimen confined as in a triaxial test apparatus. Experimental complications included rejuvenation of conductivity during prolonged periods of equilibrium (no flow) after each temperature step immediately followed by very slow but continuing decay, as if without limit. When a formula of the Brooks and Corey type was fitted to unfrozen water content data, hydraulic conductivities inferred from the formula parameter, through the model of Mualem, provided an acceptable description of observed conductivity values, as measured immediately after the equilibrium period. Copyright 1990 by the American Geophysical Union.

引用

页码：323 / 329

页数：7

共 23 条

[1]

[Anonymous], 1983, 4 INT C PERM

[2] COMPARISON OF SOIL FREEZING CURVE AND SOIL-WATER CURVE DATA FOR WINDSOR SANDY LOAM [J].