scholarly journals Seepage Force and Its Direct Mechanical Effects in Hydrate-Bearing Porous Media

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Lifeng Zeng ◽  
Longtan Shao ◽  
Xiaoxia Guo
Keyword(s):  
Porous Media ◽  
Mechanical Behavior ◽  
Physical Nature ◽  
Direct Effects ◽  
Seepage Force ◽  
Mechanical Effects ◽  
Unsaturated Seepage

The direct mechanical effects of seepage force on the behavior of hydrate-bearing porous media (HBPM) have commonly been neglected in previous studies. In this work, the physical nature of seepage force in hydrate-bearing porous media under saturated and unsaturated seepage conditions was adequately explained, and then, the direct effects of seepage force on the mechanical behavior of HBPM were quantified. Therefore, the results obtained in this manuscript provide a new insight to evaluate the direct mechanical effects of seepage force.

Ground Behaviors due to Seepage Force of Groundwater

2012 ◽  
Vol 594-597 ◽  
pp. 516-521
Author(s):  
Ling Yu Meng ◽  
Haruyuki Yamamoto
Keyword(s):  
Vertical Displacement ◽  
Seepage Flow ◽  
Unconfined Aquifer ◽  
The Finite Element Method ◽  
Seepage Force ◽  
Ground Displacement ◽  
Simulation Code ◽  
Capillary Zone ◽  
Seepage Theory ◽  
Unsaturated Seepage

Well pumping leads to both horizontal and vertical displacement, and fluctuation of groundwater level can cause serious damage to structures in a lagre affected area. Ground behaviors due to seepage force in traditional methods were rarely considered. This paper presents a numerical solution of ground displacement behaviors due to unsteady groundwater flow in unconfined aquifer by considering the effect of capillary zone based on the saturated-unsaturated seepage theory, and the numerical simulation code implemented by FORTRAN is applied to predict the flow velocity distribution and the results of ground displacement. The model uses the finite element method and finite difference method to study the problem. The analysis shows that the seepage force and the effect of capillary zone play a very important role in both seepage flow and displacement field.

Mechanical behavior and rupture of a porous media based on a cohesive granular media approach

2020 ◽  
pp. 883-889
Author(s):  
J.-Y. Delenne ◽  
M.S. El Youssoufi ◽  
F. Cherblanc ◽  
J.-C. Bénet
Keyword(s):  
Porous Media ◽  
Mechanical Behavior ◽  
Granular Media

Electro-Mechanical Behavior of Wet Bone—Part I: Theory

1984 ◽  
Vol 106 (3) ◽  
pp. 249-261 ◽  
Author(s):  
N. Guzelsu ◽  
S. Saha
Keyword(s):  
Mechanical Properties ◽  
Mechanical Behavior ◽  
Bone Tissue ◽  
Bone Matrix ◽  
Hydrogen Ions ◽  
Mechanical Effects ◽  
Substantial Interest ◽  
Stimulation Of

The remodeling properties of bones due to various stimuli have been of substantial interest to the scientists. Examination of electro-mechanical properties of bone and their relation to remodeling and osteogenesis have been investigated mainly by experimental means. In this study, by using continuum physics, it is shown that the remodeling of bones can be formulated theoretically in terms of electrical and mechanical effects. The interactions among the constituents of bone (bone matrix, bone salts, electrolytes and hydrogen ions) and effects of various stimuli (mechnical, electrical and chemical) on the remodeling mechanism of bone tissue are interpreted with this model. Moreover, the stimulation of osteogenesis by electrical means is predicted.

Stability and Reinforcement of Subgrade Slope of Weathered Rock Considering the Effect of Seepage

2013 ◽  
Vol 361-363 ◽  
pp. 1472-1476
Author(s):  
Feng Gang Wang ◽  
Feng Zhang ◽  
Xian Zhang Ling ◽  
Yan Li
Keyword(s):  
Surface Element ◽  
Seepage Force ◽  
Weathered Rock ◽  
Reinforcement Measure ◽  
Engineering Measures ◽  
Shearing Strength ◽  
Seepage Theory ◽  
The Stability ◽  
Slide Area ◽  
Unsaturated Seepage

Taking the slope of K178+500-K178+550 of Beian-Heihe expressway as example, based on the steady saturated-unsaturated seepage theory and simplified the seepage force of groundwater into equivalent nodal load, then using the strength reduction finite element method to analysis the stability and potential slide area of roadbed slope which has no engineering measures; the interaction between slide-resistant pile and weathered rock can be reasonably considered by using the contact surface element, the result shows that, the safety factor of roadbed slope can be improved and the shearing strength of roadbed slope can be evenly dispersed by the reinforcement measure. The result can be used for the stability evaluation and reinforcement of subgrade slope of weathered rock area.

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