Results 141 to 150 of about 32,663 (290)

Design charts for the stability analysis of unsaturated soil slopes

, 2009
Simple limit equilibrium analyses can be performed to determine the Factor of Safety (FOS) against slope failure of unsaturated soil slopes. However, many of the input parameters needed for these analyses are highly variable, and the FOS value obtained ...
Gavin, Kenneth, Xue, Jianfeng, Jianfeng Xue, Kenneth Gavin   +3 more
core   +1 more source

The performance of unsaturated shear strength models of silt soils using the soil water characteristics curve

Results in Engineering
Various studies have investigated soils' unsaturated shear strength properties using the modified triaxial testing machine, which is costly, and time-intensive for standard geotechnical procedures.
Habtamu Sewnet Alehgn
doaj   +1 more source

Disentangling mechanisms that mediate soil fungal α and β diversity during forest secondary succession

Ecography, EarlyView.
Understanding the mechanisms controlling community diversity is a central, topic in ecology, particularly in microbial ecology. Although species pools and local assembly processes are believed to play non‐negligible roles in shaping the within‐community (α) and among‐community (β) diversity of microbial communities, their relative importance as ...
Xiao Zhang, Biao Dong, Yongtao Huang, Handan Dai, Zhu Yang, Shenglei Fu, Qiang Li, Yidan Yuan, Yuhua Tan, Huan Li, Shirong Liu   +10 more
wiley   +1 more source

A pore network modeling approach to bridge void ratio‐dependent soil water retention and unsaturated hydraulic conductivity curves

Engineering Reports
In geotechnical engineering, understanding the relationship between soil permeability and deformation is essential, particularly for applications like earth dams, where compaction‐induced permeability reduction is crucial for performance optimization. In
Rasoul Mirghafari, Seyed Sajjad Sajjadian, Ehsan Nikooee, Ghassem Habibagahi, Amir Raoof   +4 more
doaj   +1 more source

Living on the edge – physiological tolerance to frost and drought explains range limits of 35 European tree species

Ecography, EarlyView.
Species distribution models are key to evaluate how climate change threatens European forests and tree species distributions. However, current models struggle to integrate ecophysiological processes. Mechanistic models are complex and have high parameter requirements.
Anne Baranger, Thomas Cordonnier, Guillaume Charrier, Sylvain Delzon, Maximilian Larter, Nicolas K. Martin-StPaul, Georges Kunstler   +6 more
wiley   +1 more source

Predicting Groundwater Hydrochemical Facies in Three Dimensions with Random Forest Classification, USA

Groundwater, EarlyView.
Random forest classification predictions of groundwater hydrochemical facies (HCFs) can be used for multiple purposes, including the mapping of salinity and other groundwater characteristics. Shown on the figure are predictions of HCFs at the water table across the conterminous United States.
Paul E. Stackelberg, Katherine J. Knierim, Kenneth Belitz, Charles A. Cravotta III, R. Blaine McCleskey, Courtney D. Killian   +5 more
wiley   +1 more source

Modelling of pesticide exposure in ground and surface waters used for public water supply [PDF]

, 2014
Diffuse transfers of pesticides from agricultural land to ground and surface waters can lead to significant drinking water quality issues. This thesis describes the development and application of a parameter-efficient, numerical model to predict ...
Pullan, Stephanie
core  

Leaky Sewers Hydraulically Disconnect from Groundwater: A Proof‐of‐Concept

Groundwater, EarlyView.
In this study, we newly demonstrate that leaky pipes can become hydraulically disconnected from the underlying groundwater—a phenomenon analogous to river–groundwater interactions. Through numerical modeling, we show that, as the groundwater table declines, the leakage flux from the pipe (in absolute terms) initially increases until a critical depth ...
Aaron Peche, Fritz Kalwa, Syed Mohaiminul Islam, Georg Houben, Thomas Graf, Sven Altfelder   +5 more
wiley   +1 more source

THE EFFECTS OF WATER CONTENT VARIATION ON ADHESION FACTOR OF PILE FOUNDATION IN EXPANSIVE SOIL [PDF]

, 2013
Seasonal change causes variations in soil moisture content. On expansive soil, this condition influences soil moisture content in the active zone, which is approximately in five meters depth.
Soemitro, Ria Asih Aryani, Tjandra, Daniel, Indarto,   +2 more
core  

Temporal Evolution of Contaminant Mass Discharge: Effect of Source Remediation at Contaminated Sites

Groundwater Monitoring &Remediation, EarlyView.
Abstract Contaminant mass discharge (CMD) is a key metric for evaluating remediation performance at contaminated sites posing a risk to groundwater. This study assesses temporal CMD trends and associated uncertainties using a geostatistical approach at a chlorinated solvent contaminated site following source zone remediation, supported by two decades ...
Anton Bøllingtoft, Mads Troldborg, Charlotte Riis, Nina Tuxen, Poul L. Bjerg   +4 more
wiley   +1 more source