Results 11 to 20 of about 2,481,910 (343)

Numerical simulation of ground source heat pump systems considering unsaturated soil properties and groundwater flow

open access: yesApplied Thermal Engineering, 2018
This paper analyzes the influence of unsaturated soil properties and groundwater flow on the performance of ground source heat pump (GSHP) systems. A mathematical model of GSHP systems, which considers the influence of varying unsaturated soil thermal ...
Chaofeng Li   +3 more
semanticscholar   +3 more sources

Transient unsaturated shaft resistance of a single pile during water flow [PDF]

open access: yesMATEC Web of Conferences, 2021
The pile foundations’ design is commonly based on the soil’s initial in situ condition during field investigations or the assumption of its saturated condition.
Santos Daniel Batista   +2 more
doaj   +1 more source

Swelling pressure evolution and water distribution characteristics of bentonite during wetting process

open access: yesYantu gongcheng xuebao, 2023
The compacted bentonite is widely used as the sealing barrier material, and its swelling pressure is regarded as an important design index. A device based on vapor equilibrium technique is designed for measuring the swelling pressure of expansive soils ...
LIANG Weiyun 1, 2, WEI Changfu 2, ZHANG Qin 2, QIN Liuyang 2, WEN Songsong 2, YAN Rongtao 2
doaj   +1 more source

Effect of the optimum and residual moisture content on the strength characteristics of unsaturated sands [PDF]

open access: yesE3S Web of Conferences, 2023
Soil exists mainly in unsaturated conditions. Therefore, accurate prediction of the soil shear strength for unsaturated conditions also becomes equally important for the geotechnical design of earth structures.
Ahmad Waqar   +2 more
doaj   +1 more source

The Duncan-Chang statistical damage correction model of unsaturated soil considering matric suction

open access: yesShuiwen dizhi gongcheng dizhi, 2022
In order to reflect the whole deformation process of unsaturated foundation soil, the consolidated drained triaxial compression test is carried out on the unsaturated soil of a foundation project.
Weijia TAN   +3 more
doaj   +1 more source

Two-phase dynamic MPM formulation for unsaturated soil

open access: yes, 2021
In this paper, a computational framework based on the Material Point Method is developed to study the coupled seepage-deformation process in unsaturated soils.
F. Ceccato   +3 more
semanticscholar   +1 more source

Dilatancy Characteristics and Constitutive Modelling of the Unsaturated Soil Based on Changes in the Mass Water Content

open access: yesApplied Sciences, 2021
Most soil mechanics theories are limited to strain hardening and shrinkage under high compressive stresses, and there are some shortcomings in the selection of suction or degree of saturation as the water content state varies in the constitutive models ...
Xiao Xu   +6 more
doaj   +1 more source

Numerical study on bearing capacity of a pile group next to a slope in unsaturated soils [PDF]

open access: yesE3S Web of Conferences, 2020
The bearing capacity of a pile group mostly depends on parameters of the soil shear strength affected by the soil-water characteristics, especially in unsaturated soils.
Pourfatollah Amirreza   +2 more
doaj   +1 more source

Active Soil Pressure of Unsaturated Soil under Rainfall Conditions

open access: yesAdvances in Civil Engineering, 2022
To study the change in unsaturated active earth pressure under rainfall conditions, based on the thin layer element method and shear strength formula of unsaturated soil, Iverson analysis was used to improve the traditional Coulomb earth pressure theory,
Qizhi Hu, Yugang Li
doaj   +1 more source

Analytical solutions for 1D consolidation of unsaturated soils with mixed nonhomogeneous boundary conditions

open access: yesRock and Soil Mechanics, 2021
The consolidation of unsaturated soil is of great significance to road engineering, soft foundation soil improvement, etc. Based on the one-dimensional consolidation theory of unsaturated soil proposed by Fredlund and Hasan, the governing equations for ...
LING Dao-sheng   +4 more
doaj   +1 more source

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