Innovative Air Convection Embankment For Cold/Arctic Region Low-Volume Roads,
2025
Missouri University of Science and Technology
Innovative Air Convection Embankment For Cold/Arctic Region Low-Volume Roads, Hanli Wu, Jenny Liu, Xiong Zhang, Steve Saboundjian
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Roadbed thaw settlement is a unique challenge for the durability of low-volume roads (LVRs) in permafrost regions. Air convection embankment (ACE) is an effective technique that acts as a semi-heat-transfer system to control temperature variation and reduce the thaw depth of subsoil. However, limited by the shortage of the necessary crushed rocks within a short distance, building an ACE in Alaska, U.S., is prohibitively expensive. Previous studies identified the feasibility of using cellular concrete for ACE and determined the optimized thickness of the cellular concrete aggregate interlayer for ACE. However, the economic efficiency and thermal and mechanical performance of the …
Fault Box Modeling Of Dip Slip Faults: A Framework For Fault Box Design And Future Studies,
2025
California Polytechnic State University, San Luis Obispo
Fault Box Modeling Of Dip Slip Faults: A Framework For Fault Box Design And Future Studies, Hailey Pressnell
Master's Theses
The behavior of soils during surface fault rupture is a serious concern in the planning and design of infrastructure that may be located within or near a fault zone. Challenges associated with developing mitigation measures for surface fault rupture include the uncertainty of fault rupture and the variability of fault behavior. Current analytical procedures define surface fault rupture according to the type of fault movement (strike slip, normal or reverse), the amount of displacement on the fault, and the mechanics of the material overlying the fault. The purpose of this thesis is to reconfirm analytical solutions and gain a better …
Adaptation And Validation Of The Small Strain Hardening Soil Model For Sensitive Clays In Eastern Canada,
2025
Université Laval
Adaptation And Validation Of The Small Strain Hardening Soil Model For Sensitive Clays In Eastern Canada, Jose Fidelis Zanavelo, Denis Leboeuf, Bertrand Galy
Articles dans des actes de congrès
This study focuses on the modelling of the complex behaviour of Champlain Sea deposits of Éastern Canada. Sensitive clays present unique geotechnical challenges due to their significant strength loss upon remolding and complex stress-strain response. The research was conducted in two phases: (1) a laboratory investigation of Louiseville clay under various stress paths and (2) the development and validation of a modified constitutive model based on the Hardening Soil model with small-strain stiffness (HSsmall). Standard HSsmall showed limitations in representing the behaviour of structured sensitive clays, especially in the overconsolidated range. To address this, the HSSstruct model, which improves upon …
Quantifying Deviation Of Elasticity In The Quasi-Elastic Domain Of Granular Soils,
2025
Missouri University of Science and Technology
Quantifying Deviation Of Elasticity In The Quasi-Elastic Domain Of Granular Soils, Wen Deng, Yufan Jin, Pingxin Xia, Qingqing Fu, Xiong Xia, Xiaoxia Guo
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
The absence of purely elastic properties in granular soil is attributed to the reversible sliding that occurs between particles during the loading–unloading cycle, leading to the dissipation of energy through friction. Instead of the strictly elastic domain, we opt for a quasi-elastic domain to examine elastic behavior within the confines of elastic theory. Within this quasi-elastic realm, the response deviates to some extent from the idealized pure elastic behavior posited by the elastic theory. As a result, the elastic constitutive relations applied to granular materials are no longer strictly accurate and may exhibit deviations. With the aim of exploring the …
Earthquake Wrangler: Leveraging Ios Technology For Earthquake Detection And Early Warning Application To Enhance Public Safety.,
2025
University of Kentucky
Earthquake Wrangler: Leveraging Ios Technology For Earthquake Detection And Early Warning Application To Enhance Public Safety., Luis F. Salome
Theses and Dissertations--Civil Engineering
Earthquakes are devastating natural phenomena and generate secondary hazards such as tsunamis, landslides and fires. Their catastrophic impacts span both developed nations including the United States, Japan, Turkey, and Italy and developing countries such as El Salvador, Haiti, Nepal and the Philippines, where disparities in early warning infrastructure remain important. Seismic events start with stress waves generated by tectonic plate motion, with body waves (P- waves and S-waves) and surface Rayleigh and love waves that carry energy through the earth. While some regions have adopted advanced early warning systems based on seismic hazard models and strong ground motion analysis, others …
Considerations Of Undrained Behavior Of Compacted Clay Embankments Under Extreme Wetting-Drying Cycles,
2025
Embry-Riddle Aeronautical University
Considerations Of Undrained Behavior Of Compacted Clay Embankments Under Extreme Wetting-Drying Cycles, Ghada Ellithy, John F. Peters
Publications
Many geotechnical analyses, including slope stability, involve unsaturated soils or soils in thevadose zone. Undrained loading happens when the increase in driving forces occurs quicker thanthe ability of the soil to dissipate its pore-water pressure (PWP). During undrained loading forcompacted clay embankments, in which the material is typically unsaturated, it has beenestablished that the increase in shear strength caused by an increase in confining pressure is largerthan the reduction in shear strength due to a decrease in matric suction. This concept is not wellestablished in engineering practice because the conventional understanding is that the strength ofunsaturated soils is larger than …
Integration Of Physics-Informed Neural Networks And Transfer Learning For Rainfall Induced Landslide Forecasting,
2025
Missouri University of Science and Technology
Integration Of Physics-Informed Neural Networks And Transfer Learning For Rainfall Induced Landslide Forecasting, Shian Cao, Weibing Gong
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Rainfall-induced landslides are a significant geological hazard, causing severe economic losses and casualties. Accurate forecasting of these events is particularly challenging due to the complex interactions of spatial and temporal factors governing slope stability. The Iverson model, which uses the Richards equation to describe water infiltration in unsaturated soils, is a widely adopted framework for analyzing rainfall-induced landslides. However, its reliance on traditional numerical methods limits its scalability and efficiency, particularly for complex boundary conditions and transient behaviors near slope failure. To address these limitations, we propose a physics-informed neural network (PINN) enhanced with transfer learning (TL-PINN) to solve the …
Hydrogen-Induced Transformations In Dolomite: Unlocking Natural Hydrogen Exploration And Subsurface Storage In Carbonates,
2025
Edith Cowan University
Hydrogen-Induced Transformations In Dolomite: Unlocking Natural Hydrogen Exploration And Subsurface Storage In Carbonates, Krista Davies, Lionel Esteban, Joel Sarout, Alireza Keshavarz, Stefan Iglauer
Research outputs 2022 to 2026
Large-scale subsurface geological storage of hydrogen can significantly contribute to the energy transition to low-carbon fuels by addressing the intermittency of renewable energy systems. Dolomite formations are abundant and well-suited for hydrogen storage due to their favorable reservoir properties. Natural hydrogen has also been discovered within dolomite reservoirs globally. Despite their potential, interactions between hydrogen and dolomitic formations under subsurface conditions remain poorly understood, particularly regarding mineralogical transformations and reaction kinetics to assess potential risk for reservoir quality for long-term storage and key indicators for natural hydrogen exploration. This study examined physicochemical changes in dolomitic samples during high-pressure hydrogen ageing …
Characterization Of Load-Bearing And Failure Properties Of Fractured Rock Masses Reinforced By Negative Pressure Grouting,
2025
Edith Cowan University
Characterization Of Load-Bearing And Failure Properties Of Fractured Rock Masses Reinforced By Negative Pressure Grouting, Juejing Fang, Kelly Yang, Farhad Aslani, Xin Lyu, Xiang He, Guiquan Li, Jiqiang Zhang
Research outputs 2022 to 2026
Grouting injection is a vital technique for addressing the challenges of high stress and significant deformation in the surrounding rock during deep mining operations, playing a crucial role in promoting green and low-carbon extraction methodologies. In this study, grouting reinforcement processes were examined by conducting grouting experiments on a fractured rock with varying negative pressures (0–100 kPa), followed by uniaxial compression testing of the grout-reinforced bodies. This investigation explored the diffusion patterns of grout under negative pressure and established a constitutive model of damage-bearing capacity for bodies reinforced by negative pressure grouting. It further studied the enhancement effect of negative …
Evaluation Of Rare Earth Element Hydraulic Preconcentrate Material Strength Characteristics And Operation Manual Development For Triaxial Machine Testing,
2025
West Virginia University
Evaluation Of Rare Earth Element Hydraulic Preconcentrate Material Strength Characteristics And Operation Manual Development For Triaxial Machine Testing, Nicholas C. Stalnaker
Graduate Theses, Dissertations, and Problem Reports (ETD)
As part of ongoing efforts to establish a domestic Rare Earth Elements (REE) supply chain, Hydraulic Preconcentrate (HPC) generated at the Horseshoe Bend (HsB) treatment plant was produced and evaluated as a potential feedstock source. Following adjustment of the site’s clarifiers to the required pH set points, HPC was collected and pumped into 24 geobags. These geobags were passively dewatered to raise the total solids content. The evaluation included three geobag types: woven geotextile, composite (woven and non-woven), and geobags enhanced with Capillary Channel Fiber (CCF) (Bird, 2024). Hydraulic Preconcentrate (HPC) material is collected through efforts to contain and properly …
A Global Application Programming Interface-Enabled Earthquake Ground Motion Relational Database For Engineering Applications,
2025
University of California, Los Angeles
A Global Application Programming Interface-Enabled Earthquake Ground Motion Relational Database For Engineering Applications, Tristan E. Buckreis, Chukwuebuka C. Nweke, Pengfei Wang, Scott J. Brandenberg, Maria E. Ramos-Sepúlveda, Rashid Shams, Shako Mohammed, Renmin Pretell, Silvia Mazzoni, Paolo Zimmaro, Jonathan P. Steward
Civil & Environmental Engineering Faculty Publications
We present a application programming interface (API)-enabled relational database of global earthquake ground motion intensity measures, associated metadata, and processed time-series data. Raw ground motion records were processed by the authors using either manual or semi-automated processing procedures, and every processed record has passed a quality review by a trained analyst. Computed intensity measures include peak acceleration and velocity, pseudo-spectral acceleration response spectra, cumulative absolute velocity, Arias Intensity, and Fourier amplitude spectra. The processed time-series data, associated metadata, and ground motion intensity measures were organized into a web-served relational database consisting of 32 tables connected by primary/foreign key pairs. Ground …
Corrosion Of Pipes In Soil Under Cathodic Protection,
2025
The University of Akron
Corrosion Of Pipes In Soil Under Cathodic Protection, Ashley Chow
Williams Honors College, Honors Research Projects
This research project focuses on understanding how various soil properties affect the corrosion of buried pipelines that are protected by cathodic protection (CP) systems. Specifically, the study seeks to evaluate key soil characteristics, including resistivity, moisture content, and pH levels to determine their influence on the efficiency of CP systems in mitigating corrosion. Through controlled laboratory experiments, carbon steel specimens were exposed to a range of simulated soil conditions to mimic real-world environments. Corrosion rates were assessed using advanced electrochemical techniques, such as linear polarization resistance (LPR) and Tafel slopes, along with traditional mass loss methods. The primary objectives of …
Software Literacy In Construction,
2025
The University of Akron
Software Literacy In Construction, Aidan Cazares
Williams Honors College, Honors Research Projects
The construction industry increasingly relies on software like Bluebeam Revu for their quantity takeoff, document management, and collaboration needs. This project will outline pertinent information obtained through their Bluebeam professional training program and reflect it with a detailed estimate of a real life construct project.
Estimating Unconfined Compressive Strength (Ucs) Of Rocks From Measurement While Drilling (Mwd) Data,
2025
Michigan Technological University
Estimating Unconfined Compressive Strength (Ucs) Of Rocks From Measurement While Drilling (Mwd) Data, Can Erdem
Dissertations, Master's Theses and Master's Reports
Measurement-while-drilling (MWD) technology enables the real-time monitoring of drilling parameters during the drilling process. MWD data can provide valuable insight into the mechanical behavior of intact rocks and rock masses, which is essential for geotechnical applications such as foundation design and underground construction. The aim of this study is to correlate real-time drilling parameters, recorded using a laboratory-developed MWD system, with the unconfined compressive strength (UCS) of rocks. A custom laboratory MWD system was designed to simultaneously record four key drilling parameters: thrust (axial force, crowd), torque, penetration rate, and rotational speed. The custom-built MWD system was used to continuously …
Assessment Of Surface Area Application Ratios For Beach Sand Treated Via Surface Percolated Micp-Bioslurry For Erosion Mitigation,
2025
University of North Florida
Assessment Of Surface Area Application Ratios For Beach Sand Treated Via Surface Percolated Micp-Bioslurry For Erosion Mitigation, Connor J. Marlin
UNF Graduate Theses and Dissertations
Rapid shoreline erosion associated with sea-level rise is an ongoing threat to coastal infrastructure. Traditional stabilization techniques, such as revetments, seawalls, and periodic nourishment, often prove costly, ecologically disruptive, or provide only temporary protection. Microbially Induced Calcite Precipitation (MICP) and its operational variant, bioslurry, present a biologically inspired alternative capable of forming a cemented surface crust that reduces soil erodibility. Previous laboratory studies typically prescribed a solution dosage as a percentage of pore volume (%PV). While geotechnically sound, this metric is poorly suited to field deployment across a large area. This thesis evaluates surface-area-based dosing (L/m²) as the primary dosage …
Assessment Of Wave Climate Conditions At An Important Historical And Ecological Site Along The Fort George River In Northeast Florida,
2025
University of North Florida
Assessment Of Wave Climate Conditions At An Important Historical And Ecological Site Along The Fort George River In Northeast Florida, Ally O. Kasuwi
UNF Graduate Theses and Dissertations
This study investigated wave climate conditions at the Timucuan Preserve in northeast Florida, addressing gaps in previous shoreline erosion research that largely attributed erosion to boat wakes without detailed wave data. Field data were collected using several do-it-yourself water wave gauges. Each data collection event was for approximately one week, with an emphasis on collecting data before, during, and after periods of expected peak wave activity (i.e., holiday weekends and large-scale storms). Data were analyzed in the frequency domain to establish the likely cause of waves. Results suggested that, counterintuitively, watercraft traffic may have produced higher dominant wave periods than …
Assessing The Environmental Impact Of Municipal Solid Waste,
2024
Department of Civil Engineering, Brandenburg University of Technology Cottbus –Senftenberg, 101968, Germany
Assessing The Environmental Impact Of Municipal Solid Waste, Ojo Oluwayinka Florence, Olaniyan Olatunji Sunday, Akolade Adebola Saheed, Alabi Oluwaseyi Omotayo, Olaomotito Precious Adesope, Adebayo Kehinde John
Journal of Environmental Science and Sustainable Development
Municipal solid waste (MSW) management presents significant environmental challenges, especially with increasing urbanization and population growth. This study assesses the environmental impacts of MSW, focusing on waste composition, management practices, and their effects on air, water, and soil quality. The primary objective is to evaluate how MSW contributes to environmental degradation and to explore strategies for mitigating these impacts. A hypothesis was developed that optimizing waste composition through proper sorting and treatment can reduce the environmental footprint of MSW management by at least 10% in terms of leachate production and greenhouse gas emissions. Samples were collected using a randomized sampling …
Interpreting Strain Caused By Transient Well Testing,
2024
Clemson University
Interpreting Strain Caused By Transient Well Testing, Soheil Roudini
All Dissertations
Understanding reservoir properties and structure is essential to managing subsurface operations, such as geologic storage of CO2 or production of water, hydrocarbons or heat. Previous work demonstrated the potential of analyzing strain data during transient well tests by estimating hydraulic diffusivity using a type-curve-like approach. The following dissertation aims to pursue this potential by developing and evaluating methods for interpreting strain tensor data to improve subsurface characterization. The research advances the classic, intuitive method of using type-curves to interpret well tests, but it also brings together modern computational methods from machine learning, proxy modeling and Bayesian inversion, and it …
Geotechnical Aspects Of Extraterrestrial Regolith Simulants,
2024
University of Texas at El Paso
Geotechnical Aspects Of Extraterrestrial Regolith Simulants, Jesus Baca
Open Access Theses & Dissertations
Geotechnical engineering has been crucial to the success of construction projects on Earth, and now it is time to extend this expertise to other celestial bodies. As NASA planned the Apollo missions, geotechnical engineers conducted extensive studies to understand the properties of lunar soil, using analogs like volcanic ash and other terrestrial materials to simulate the moon's surface. Nevertheless, it was not until the inception of the year 1968 that the Surveyor landers were able to give the first actual estimates of the moon soil geotechnical characteristics such as bearing capacity, void ratio, etc. With the development of more refined …
Stress-Dependent Instantaneous Cohesion And Friction Angle For The Mohr–Coulomb Criterion,
2024
Edith Cowan University
Stress-Dependent Instantaneous Cohesion And Friction Angle For The Mohr–Coulomb Criterion, Hao Li, Leo Pel, Zhenjiang You, David Smeulders
Research outputs 2022 to 2026
The strength criterion of rock is essential for stability control and safety design of geotechnical engineering constructions. Due to its widespread adoption, the Mohr–Coulomb (M-C) criterion is prominent among strength criteria. However, the M-C criterion is constrained by three significant limitations: it fails to capture the nonlinear strength response, overlooks the critical state, and disregards σ2. This study introduces a novel Stress-dependent Instantaneous Friction angle and Cohesion (SIFC) model for the M-C criterion to represent the convex strength envelope of intact rock, covering the spectrum from non-critical to critical states. In pursuit of this objective, an innovative approach for calculating …
