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RISPoroelastoplastic Borehole Modeling by Tangent Stiffness Matrix Method
Publisher: ASCE
Abstract: The stability of borehole is a major concern in petroleum and geotechnical engineering. Subsurface fossil fuel and thermal energy extraction, deep geologic carbon/energy storage, and waste disposal require sophisticated ...
Quantitative Acoustic Emissions Source Mechanisms Analysis of Soft and Competent Rocks through Micromechanics-Seismicity Coupled Modeling
Publisher: ASCE
Abstract: This research studied seismic source mechanisms of acoustic emission (AE) events generated during the failure of intact and jointed rock samples using a microscale mechanical-seismicity coupled microscale model. During ...
Estimation of Fracture Stiffness, In Situ Stresses, and Elastic Parameters of Naturally Fractured Geothermal Reservoirs
Publisher: American Society of Civil Engineers
Abstract: Knowledge of fracture stiffness, in situ stresses, and elastic parameters is essential to the development of efficient well patterns and enhanced geothermal systems. In this paper, an artificial neural network (ANN)–genetic ...
Finite-Element Modeling of Borehole Breakouts for In Situ Stress Determination
Publisher: American Society of Civil Engineers
Abstract: Borehole breakouts appear in drilling and production operations when rock subjected to in situ stress experience shear failure. By finite-element modeling of borehole breakouts, the authors obtained the stress state close ...
Optimization of Bioenergy Generation via Coupled Thermo-Hydro-Electrochemical Modeling of Two-Chamber Microbial Fuel Cells
Publisher: American Society of Civil Engineers
Abstract: AbstractMicrobial fuel cells (MFCs) have drawn increasing attention as a sustainable approach
for simultaneous wastewater remediation and energy production. However, their efficiency
remains constrained by challenges in ...
Characterization of In Situ Stress State and Joint Properties from Extended Leak-Off Tests in Fractured Reservoirs
Publisher: American Society of Civil Engineers
Abstract: Characterization of geomechanical parameters in naturally fractured reservoirs remains one of the most challenging tasks in civil, mining, and petroleum engineering. Extended leak-off tests (XLOTs) are generally carried ...
Algorithm of Crane Selection for Heavy Lifts
Publisher: American Society of Civil Engineers
Abstract: Lifting capacity charts are tabulated and provided to operators and practitioners by mobile crane manufacturers. These charts are structured based on predetermined crane configurations, which consist of boom/jib length, ...
Statics-Based Simulation Approach for Two-Crane Lift
Publisher: American Society of Civil Engineers
Abstract: Cooperative cranes are widely used in modern construction projects and can reduce the cost and time of heavy lift. The safety of cooperative crane lift can be improved by using simulation method. This paper proposes a ...
Determination of Residual Thrust Force of Landslide Using Vector Sum Method
Publisher: ASCE
Abstract: Different from the conventional transfer coefficient method widely used for calculating landslide thrust, the vector sum method can incorporate the complete stress state from any numerical simulation into a limit equilibrium ...
CFRP Shear Strengthening of Reinforced-Concrete T-Beams with Corroded Shear Links
Publisher: American Society of Civil Engineers
Abstract: This paper investigates the structural behavior of uncorroded as well as corroded RC T-beams strengthened in shear with either externally bonded (EB) carbon fiber–reinforced polymer (CFRP) sheets or embedded CFRP rods. ...