Results 31 to 40 of about 19,690 (165)

Steady Flows in Unsaturated Soils Are Stable [PDF]

open access: yesTransport in Porous Media, 2004
The stability of steady, vertically upward and downward flow of water in a homogeneous layer of soil is analyzed. Three equivalent dimensionless forms of the Richards equation are introduced, namely the pressure head, saturation, and matric flux potential forms.
van Duijn, C. J.   +2 more
openaire   +2 more sources

Study on Soil Water and Suction Stress Characteristics for Unsaturated Clay Soil of Airport Engineering Based on Laboratory Tests

open access: yesGeofluids, 2021
For the unsaturated soil in Feidong China, this study examined the suction stress characteristics based on the soil-water characteristic curve (SWCC), which was different from traditional research ideas.
Jun Feng, Guangze Zhang
doaj   +1 more source

Stability of 3D Tunnel Faces in Inclined Layered Soils Under Steady-State Unsaturated Seepage Based on Grey Relational Analysis

open access: yesApplied Sciences
This paper aims to estimate the stability of tunnel faces in inclined layered soils under steady unsaturated seepage conditions, comparing the degree of correlation between the stability of the tunnel face and the influence of three types of parameters ...
Huanjiang Wu   +3 more
doaj   +1 more source

Study on vibration isolation performance of wave impeding block in unsaturated soil foundation under an underground dynamic load

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2023
Based on single-phase medium theory and unsaturated porous medium theory, the vibration isolation effect of setting a single-phase solid wave impeding block (WIB) in the unsaturated soil foundation under an underground dynamic load is investigated. Using
Meng Zhang, Qiang Ma
doaj   +1 more source

Triple-Shear Unified Solution for Bearing Capacity of Unsaturated Soft Soil Foundations with Hard Crust

open access: yesGeofluids, 2022
The bearing capacity of unsaturated soft soil foundations is affected by natural or artificial hard crust, due to the stress diffusion and closure effect.
Xueye Cao   +4 more
doaj   +1 more source

Collaborative tensile performance and fracture behavior of rock-concrete composite material under Brazilian splitting

open access: yesCase Studies in Construction Materials
The mechanical and fracture characteristics of rock-concrete composite (RCC) have always been a key focus in rock mass engineering. To investigate the collaborative tensile properties and failure characteristics of RCC, composite disc specimens were ...
Wenqiang Ma, Xinyue Li, Xiaoxiao Li
doaj   +1 more source

Analysis of Distribution Model of Matric Suction of Land Subsidence Caused by Foundation Pit Dewatering

open access: yesEngineering Transactions, 2015
By the soil matrix suction distribution under one-dimensional steady-state flow, soil permeability coefficient ks, infiltration intensity q and initial groundwater table factors that influence the matric suction of unsaturated soil were analyzed in this ...
Donglin WANG
doaj   +1 more source

Total and Matric Suction in Unsaturated Soil with the Existence of Different Salts Content [PDF]

open access: yesEngineering and Technology Journal, 2013
Soils located above the groundwater table are generally unsaturated and exhibit negative pore-water pressures. A soil-water characteristic curve (SWCC) that relates the water content of a soil to matric suction is an important relationship for the ...
Mohammed Y. Fattah   +3 more
doaj   +1 more source

Estimating Unsaturated Hydraulic Conductivity in Unsaturated Soil Using Soil Moisture Sensors

open access: yesInternational Journal of Integrated Engineering, 2023
Unsaturated hydraulic conductivity (K) is a measurement of soil water-retaining ability in unsaturated soil. The unsaturated hydraulic properties are necessary to predict the movement of water in unsaturated soil. The current study aims to create an alternative experimental device to estimate theKusing soil moisturesensors. The experimental
Ong Sin Tian   +4 more
openaire   +1 more source

Effects of hedgerow systems on soil moisture and unsaturated hydraulics conductivity measured by the Libardi method

open access: yesJournal of Degraded and Mining Lands Management, 2016
The hedgerow systems are the agroforestry practices suggesting any positive impacts and negative impacts on soil characteristics. This study evaluated the effects of hedgerows on the unsaturated hydraulic conductivity of soil with the Libardi method ...
S . Prijono   +2 more
doaj   +1 more source

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