Results 211 to 220 of about 413 (265)

Intrinsic compression and swelling properties of a glacial till

Quarterly Journal of Engineering Geology, 1998
Abstract The heterogeneous tills of Northrn England and Scotland are difficult to sample and test if using standard UK site investigation practice which was primarily developed for soft to stiff sedimented clays and sands. Application of empirical correlations and theoretical models to help select design parameters that were developed from ...
B. G. Clarke, C.-C. Chen, E. Aflaki
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Recession Rate of Glacial Till Bluffs

Journal of Waterway, Port, Coastal, and Ocean Engineering, 1987
The relationship between waves and recession rate of cohesive bluff shorelines consisting of glacial till is explained in physical terms as a function of wave-foreshore interaction. An equation is derived based on wave energy dissipation rate in the breaking zone and on wave shear stresses offshore of the breaking zone.
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Modeling pumping tests in weathered glacial till

Journal of Hydrology, 1993
Three multiple well pumping tests were performed in low-permeability Wisconsin-age weathered glacial till in Iowa, USA. A radial flow model based on the Dupuit assumptions and a radial and vertical flow model were used to estimate flow parameters. A numerical solution to the Dupuit equation and an analytical solution to the Dupuit equation using Jacob ...
Kenneth B. Edwards, LaDon C. Jones
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Deep Excavations in Glacial Tills in Dublin

2009
A number of Deep Excavations up to 23m in depth have recently been completed in Dublin. Different approaches including propped and unpropped, Secant and Contiguous Pile Wall Solutions have been employed on various projects. The paper updates a database for propped and cantilevered wall supported excavations in Glacial Tills.
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Textural and Lithological Variations in Glacial Till

The Journal of Geology, 1933
Till samples were collected from the Valparaiso moraine around the southern end of Lake Michigan, and along a line paralleling glacial movement from Chicago south. The samples were analyzed, and. the pebbles classified according to lithology. In the Valparaiso moraine the mechanical composition was influenced by a loading of the ice with surficial ...
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Modelling the Mechanical Properties of a Compacted Glacial Till

Indian Geotechnical Journal, 2016
This paper summarizes comprehensive experimental studies on the soil–water characteristic curve (SWCC) and the variation of several mechanical properties with respect to suction for a compacted glacial till collected from Indian Head, Saskatchewan, Canada (referred to as Indian Head till). The summarized mechanical properties include the shear strength,
Sai K. Vanapalli, Zhong Han
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Determination of the acceptability of glacial tills for earthworks

Quarterly Journal of Engineering Geology and Hydrogeology, 2004
Earthwork acceptability of glacial tills presents some unique engineering challenges. These largely derive from the inherent variability and broad particle size range of till materials. This paper presents the methods now commonly used in much of the UK, but especially Scotland, for dealing with glacial tills.
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Migration of Landfill Leachate Through Glacial Tills

Groundwater, 1977
ABSTRACT To evaluate the potential of natural clay minerals for attenuating and preventing the pollution of water resources by landfill leachates, leachate was collected by anaerobic techniques from the 15‐year old Du Page County sanitary landfill near Chicago, Illinois, and was passed through 44 laboratory columns that contained ...
Keros Cartwright, Robert A. Griffin, Robert H. Gilkeson   +2 more
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Pressure Meter Testing in Glacial Till

2010
Some problems of measuring undrained strength and deformation properties for glacial till are presented. These soils are stiff and have low compressibility. Because of their strong fissured character, a satisfactory sampling for laboratory testing presents great practical problems.
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Subsurface Lateral Transport in Glacial Till Soils

Transactions of the ASABE, 2007
An understanding of water and solute flow patterns in a landscape is necessary to describe water and nutrient use by crops, as well as potential nutrient contamination of groundwater, tile water, and streams. Subsurface water and solute movement in a landscape can occur laterally as well as vertically in the soil, especially in gently rolling ...
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