Field experiments in a fractured clay till: 1. Hydraulic conductivity and fracture aperture
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چکیده
منابع مشابه
Field Experiments in a Fractured Clay Till 2. Solute and Colloid Transport
A field tracer experiment was conducted in a lateral flow field in the weathered and highly fractured upper 6 m of a 40-m-thick clay-rich till plain in southwestern Ontario. In the upper 3 m where fractures are closely spaced (<0.13 m) the advancing front (C/Co = 0.01) of the nonreactive solute tracers, bromide and O, migrated at rates of 0.01 to 0.07 m/d, over distances of 4 and 6 m and under ...
متن کاملRelationship between fracture dip angle, aperture and fluid flow in the fractured rock masses
Most of the Earth's crust contains fluids, and fractures are common throughout the upper part. They exist at a wide range of scales from micro-fractures within grains to major faults and shear zones that traverse the crust. In this paper, the stress-dependent permeability in fractured rock masses have been investigated considering the effects of nonlinear normal deformation and shear dilation o...
متن کاملring size dependence of field saturated hydraulic conductivity measurements in a clay loam soil
field saturated hydraulic conductivity (kfs) is one of the most important soil properties that considerably contribute to soil quality. however, specifically in the structured soils, the measurement of kfs is difficult and time-consuming. therefore, verifying the simple and fast methods for kfs measurement is needed for effective soil monitoring. this study was conducted to investigate the effe...
متن کاملIn-situ Field Hydraulic Conductivity
Hydraulic conductivity is commonly estimated from grain size characteristics of unconsolidated sediments. We present an extensive set of air-permeability and grain size measurements from a heterogeneous aquifer. These data are unique in that the hydraulic conductivity measurements are made on undisturbed in-situ sediment and, like the grain size measurements, have a small sample volume size (<1...
متن کاملComparison Of Hydraulic Conductivity Test Methods for Landfill Clay Liners
Accurately measuring the in situ hydraulic conductivity (permeability) of a clay liner is a major factor in the construction of landfill containment systems. Laboratory and large-scale field test methods are often utilized on test pads constructed prior to placement of the production liner to determine the hydraulic conductivity of the clay. While these test methods provide reliable results, th...
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ژورنال
عنوان ژورنال: Water Resources Research
سال: 1993
ISSN: 0043-1397
DOI: 10.1029/92wr02592