Dynamic Analysis of Thin Asphalt Pavements by Using Cross-Anisotropic Stress-Dependent Properties for Granular Layer

2010 ◽  
Vol 2154 (1) ◽  
pp. 156-163 ◽  
Author(s):  
Imad L. Al-Qadi ◽  
Hao Wang ◽  
Erol Tutumluer
Keyword(s):  
Dynamic Analysis ◽  
Granular Layer ◽  
Asphalt Pavements ◽  
Anisotropic Stress ◽  
Stress Dependent

A Stochastic Method to Estimate the Anisotropic Stress-Dependent Coal Permeability by Pore-Volume Distribution and Stress-Strain Measurements

SPE Journal ◽  
2020 ◽  
Vol 25 (05) ◽  
pp. 2582-2600
Author(s):  
Syed Shabbar Raza ◽  
Victor Rudolph ◽  
Tom Rufford ◽  
Zhongwei Chen
Keyword(s):  
History Matching ◽  
Absolute Magnitude ◽  
Volume Distribution ◽  
Stress Strain ◽  
Anisotropic Permeability ◽  
Anisotropic Stress ◽  
Flow Channels ◽  
Measured Stress ◽  
Stress Dependent ◽  
Or History

Summary A novel, simple, economical, and time-effective method to estimate the anisotropic permeability of coal is presented in this paper. This method estimates the coal’s anisotropic permeability by avoiding the tedious experimentation using triaxial permeameter or history-matching exercises. This method calculates the absolute magnitude of the permeability of the sample. In this regard, it is unlike other analytical permeability models, such as given by Palmer and Mansoori (1998) and Shi and Durucan (2014), that only calculate the permeability ratio (k/k0). The motivation is to find a method by which the permeability of the coal may be determined with reasonable accuracy by using only two easy measurements: mercury intrusion porosimetry (MIP) and anisotropic stress-strain (σ-ɛ) measurement. The main blocks of the method are based on cleat size that is obtained from MIP and randomly allocated to form flow channels/cleats through the coal; these cleats form parallel paths in the orthogonal face and butt cleat directions that provide the permeability; and the cleat width (b) is stress dependent. This method is further validated by comparing with the experimentally measured stress-dependent permeability of Surat Basin (Australia) coal and German coal in face cleat and butt cleat directions.

Equivalent Loading Frequencies for Dynamic Analysis of Asphalt Pavements

2013 ◽  
Vol 25 (9) ◽  
pp. 1162-1170 ◽  
Author(s):  
Alvaro Ulloa ◽  
Elie Y. Hajj ◽  
Raj V. Siddharthan ◽  
Peter E. Sebaaly
Keyword(s):  
Dynamic Analysis ◽  
Asphalt Pavements ◽  
Equivalent Loading

Effects of Vehicle Loads and Structure Combinations on Rutting Depth of Asphalt Pavements with Varied Base Layers in Toll Plazas

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Yan Li ◽  
Yanlong Han ◽  
Yuanbo Cao ◽  
Jiupeng Zhang ◽  
Fuyu Wang ◽  
...  
Keyword(s):  
Asphalt Pavements ◽  
Toll Plazas ◽  
Vehicle Loads

Dynamic Analysis Method for Electromagnetic Artificial Muscle Actuator under PID Control

2011 ◽  
Vol 131 (2) ◽  
pp. 166-170 ◽  
Author(s):  
Yoshihiro Nakata ◽  
Hiroshi Ishiguro ◽  
Katsuhiro Hirata
Keyword(s):  
Dynamic Analysis ◽  
Pid Control ◽  
Artificial Muscle ◽  
Analysis Method
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