Results 41 to 50 of about 19,690 (165)

Stability of 3D tunnel face under steady unsaturated seepage coupled multi-layer soil suction head distributions

Alexandria Engineering Journal
This paper proposes a new discrete approach for analyzing tunnel face stability in stratified soils under unsaturated seepage conditions. Traditional methods have primarily focused on homogeneous soils, neglecting the spatial variability of unsaturated ...
Huanjiang Wu, Hong Liao, Chaoguang Wu
doaj   +1 more source

Thermal Conductivity Model Analysis of Unsaturated Ice-Containing Soil

Geofluids, 2022
In cold locales, the thermal conductivity of soil porous media varies according to their composition and the phase state of the substance contained within the pore space.
Qiang Han, Zhiguo Wang, Rui Qin
doaj   +1 more source

Buoyant Advection of Gases in Unsaturated Soil [PDF]

Journal of Environmental Engineering, 1994
In unsaturated soil, methane and volatile organic compounds can significantly alter the density of soil gas and induce buoyant gas flow. A series of laboratory experiments was conducted in a two-dimensional, homogeneous sand pack with gas permeabilities ranging from 110 to 3,000 darcy. Pure methane gas was injected horizontally into the sand and steady-
Gregory E, Seely, Ronald W, Falta, James R, Hunt   +2 more
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Unsaturated Soil Mechanics.

Vadose Zone Journal, 2005
NING LU and WILLIAM J. LIKOS. John Wiley and Sons Inc, Hoboken, New Jersey. 2004. Hardcover, 556 pp. $130. ISBN 0-471-44731-5. Unsaturated soil mechanics is a relatively new discipline developed during the past 40 years from classical soil mechanics, which deals with stress, strength ...
Markus Berli, Dani Or
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The Coupling Effect of Pore Water Pressure and Pore Water Gravity in Unsaturated Soils under Rainfall Condition and Its Influence on Slope Stability

Geofluids, 2022
In the study of the impact of rainfall on the unsaturated soil slope, the changes of pore water pressure and effective stress are frequently analyzed, while the loading effect caused by the change of pore water content in unsaturated soils is often ...
Nenghao Zhao, Haijun Lu, Rongtang Zhang
doaj   +1 more source

A Simple Model for Estimating the Hydraulic Conductivity of Unsaturated Soil

Applied Sciences
Describing the hydraulic conductivity of unsaturated soil is very important in predicting water transport. Most current models have complex forms and generally need to be calibrated by the measured unsaturated hydraulic conductivity curve. A simple model,
Ziran Zhang, Maosheng Zhang
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Seasonal influence on cone penetration test: An unsaturated soil site example

Journal of Rock Mechanics and Geotechnical Engineering, 2019
Interpretation of electric cone penetration test (CPT) based pore water pressure measurement (CPTu) is well established for soils with behavior that follows classical soil mechanics.
Heraldo Luiz Giacheti, Renan Cravera Bezerra, Breno Padovezi Rocha, Roger Augusto Rodrigues   +3 more
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Effect of initial conditions on strength of unsaturated compacted loess soil

Građevinar, 2014
The influence of grain size distribution, initial moisture, dry bulk density, and capillary suction on an increase in shear strength of unsaturated compacted silty loess soil is presented in the paper.
Gordana Hadži-Niković, Slobodan Ćorić, Laslo Čaki   +2 more
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Elastoplastic Solution of Cylindrical Cavity Expansion in Unsaturated Offshore Island Soil Considering Anisotropy

Journal of Marine Science and Engineering
An elastoplastic analysis scheme for the cylindrical cavity expansion in offshore islands unsaturated soils considering anisotropy is established.
Jifei Cui, Yanhao Jin, Yingjie Jing, Yu Lu   +3 more
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A Review on Soils Treated with Biopolymers Based on Unsaturated Soil Theory. [PDF]

Polymers (Basel), 2023
Zhang J, Liu J.
europepmc   +1 more source