Universidad de La Salle, Bogotá
Islamic Azad University, Iran/ CALTROP Consultant Eng. Co., San Pedro, California
The University of Western Ontario
Construction Engineering & Management, Purdue University
Enhancing Wettability Prediction In The Presence Of Organics For Hydrogen Geo-Storage Through Data-Driven Machine Learning Modeling Of Rock/H2/Brine Systems,
2023
Edith Cowan University
Enhancing Wettability Prediction In The Presence Of Organics For Hydrogen Geo-Storage Through Data-Driven Machine Learning Modeling Of Rock/H2/Brine Systems, Zeeshan Tariq, Muhammad Ali, Nurudeen Yekeen, Auby Baban, Bicheng Yan, Shuyu Sun, Hussein Hoteit
Research outputs 2022 to 2026
The success of geological H2 storage relies significantly on rock–H2–brine interactions and wettability. Experimentally assessing the H2 wettability of storage/caprocks as a function of thermos-physical conditions is arduous because of high H2 reactivity and embrittlement damages. Data-driven machine learning (ML) modeling predictions of rock–H2–brine wettability are less strenuous and more precise. They can be conducted at geo-storage conditions that are impossible or hazardous to attain in the laboratory. Thus, ML models were utilized in this research to accurately model the wettability behavior of a ternary system consisting of H2, rock minerals (quartz and mica), and brine at different operating geological …
Residual Trapping Of Co2, N2, And A Co2-N2 Mixture In Indiana Limestone Using Robust Nmr Coreflooding: Implications For Co2 Geological Storage,
2023
Edith Cowan University
Residual Trapping Of Co2, N2, And A Co2-N2 Mixture In Indiana Limestone Using Robust Nmr Coreflooding: Implications For Co2 Geological Storage, Amer Alanazi, Auby Baban, Muhammad Ali, Alireza Keshavarz, Stefan Iglauer, Hussein Hoteit
Research outputs 2022 to 2026
Carbon capture and sequestration (CCS) in geological formations is a prominent solution for reducing anthropogenic carbon emissions and mitigating climate change. The capillary trapping of CO2 is a primary trapping mechanism governed by the pressure difference between the wetting and nonwetting phases in a porous rock, making the latter a key input parameter for dynamic simulation models. During the CCS operational process, however, the CO2 is prone to contamination by impurities from various sources such as surfaces (e.g., pipelines and tanks) and the subsurface (e.g., existing natural gas). Such contamination can strongly influence the overall CO2 wettability, storage capacity, and …
Effect Of Methylene Blue On Wetting Characteristics Of Quartz/H2/Brine Systems: Implication For Hydrogen Geological Storage,
2023
Edith Cowan University
Effect Of Methylene Blue On Wetting Characteristics Of Quartz/H2/Brine Systems: Implication For Hydrogen Geological Storage, Fatemah Alhamad, Mujahid Ali, Nurudeen P. Yekeen, Muhammad Ali, Hussein Hoteit, Stefan Iglauer, Alireza Keshavarz
Research outputs 2022 to 2026
Hydrogen (H2) is considered a promising replacement for fossil fuels due to its enormous potential as an environmentally friendly and sustainable option compared to carbon-based fossil fuels. However, storing the vast quantity of H2 required to satisfy the global energy demand on the earth's surface can be difficult due to its compressibility and volatility. The best option for large-scale storage is underground H2 storage (UHS), which can be retrieved when needed. Rock wettability is vital in UHS because it determines the H2 storage capacity, containment security, and potential withdrawal and injection rates. Organic acid inherent in storage formations could make …
Nationalconference On Construction, Sustainable Infrastructure And Valorization Of Waste-2023,
2023
Principal GIET, Ghangapatna, Bhubaneswar.
Nationalconference On Construction, Sustainable Infrastructure And Valorization Of Waste-2023, Subhrajit Pradhan Prof (Dr), Chandan Kumar Sahoo Dr., Niyati Nayak Prof., Tanushree Dalai Prof
Conference Proceedings - Full Volumes
Gandhi Institute of Excellent Technocrats, Ghangapatna, BBSR is organizing a conference, “National Conference on Construction, sustainable Infrastructure and Valorization of waste-2023” on 6th& 7thOctober 2023, at GIET, Ghangapatna, BBSR. The conference provides a platform for deliberations on developing solutions that mitigate the impact of infrastructure on ecology and environment. Research and case studies on challenges, underlying opportunities and innovative ideas for the development of sustainable infrastructure will be presented and discussed.
Refined Analysis On Stress State Of Cutoff Wall Of High Asphaltic Core Dam On Super-Deep Overburden,
2023
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China; Institute of Earthquake Engineering, School of Hydraulic Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
Refined Analysis On Stress State Of Cutoff Wall Of High Asphaltic Core Dam On Super-Deep Overburden, De-Gao Zou, Yong-Qian Qu, Xian-Jing Kong, Kai Chen, Jing-Mao Liu, Jin Gong
Rock and Soil Mechanics
The concrete cutoff wall is the main anti-seepage structure of the rockfill dam resting on the deep overburden foundation, and is the key to ensuring the dam safety. Therefore, it is of great significance to accurately simulate the stress state of cutoff wall for evaluation of the rockfill dam resting on the deep overburden. Combining the incremental iteration method and the finite element-scaled boundary finite element coupling method (FEM-SBFEM), this paper realizes the trans-scale refined numerical analysis of the stress and deformation of the rockfill dam, which overcomes the low precision of the conventional midpoint increment method in solving local …
Roughness Characterization Of Rock Fracture And Its Influence On Fracture Seepage Characteristics,
2023
College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, Jiangsu 210098, China
Roughness Characterization Of Rock Fracture And Its Influence On Fracture Seepage Characteristics, Lei Gan, Yu Liu, Zong-Liang Zhang, Zhen-Zhong Shen, Hong-Ying Ma
Rock and Soil Mechanics
Roughness of rock fracture has a significant influence on the seepage characteristics of fracture. The point cloud data of rock fracture surface was collected by three-dimensional (3D) optical scanning system. The joint roughness coefficient (JRC) and surface roughness ratio (Rs) were calculated by SURFER and GEOMAGIC STUDIO, and the quantitative relationship between JRC and Rs was established. The effects of JRC and Rs on the fracture seepage characteristics in limestone were investigated by conducting seepage tests under the coupling effect of stress, seepage and chemical interaction. The results show that JRC is a logarithmic function of Rs, with the R-squared …
Strength Deterioration Characteristics Of Lime-Metakaolin Improved Earthen Site Soil Under Freeze-Thaw Cycles,
2023
School of Civil Engineering and Architecture, Zhongyuan University of Technology, Zhengzhou, Henan 450007, China; Research Center of Environmental Geotechnical Engineering and Underground Engineering Disaster Control Engineering of Henan Province, Zhongyuan University of Technology, Zhengzhou, Henan 450007, China
Strength Deterioration Characteristics Of Lime-Metakaolin Improved Earthen Site Soil Under Freeze-Thaw Cycles, Xin-Ming Li, Hao-Yang Zhang, Di Wu, Yan-Rui Guo, Ke-Bin Ren, Yun-Zhi Tan
Rock and Soil Mechanics
The Central Plains are located in an area that experiences seasonal freeze-thaw cycles, which can have significant effects on the soil structure of soil relics. To determine if lime-metakaolin (L-MK) is a feasible alternative to natural hydraulic lime (NHL) for earth site restoration work, tests were conducted using lime, metakaolin and silty sand from the site as main raw materials. Mass loss, unconfined compressive strength and splitting tensile strength tests were carried out on L-MK improved silty sand soil undergoing different numbers of freeze-thaw cycles to study its strength characteristics in depth. X-ray diffraction (XRD) thermogravimetry (TG), and scanning electron …
Characteristics Of The Cumulative Plastic Deformation And Pore Water Pressure Of Saturated Sand Under Cyclic Intermittent Loading,
2023
School of Civil Engineering, Central South University, Changsha, Hunan 410075, China; Key Laboratory of Engineering Structures of Heavy Haul Railway of Ministry of Education, Central South University, Changsha, Hunan 410075, China
Characteristics Of The Cumulative Plastic Deformation And Pore Water Pressure Of Saturated Sand Under Cyclic Intermittent Loading, Qi Yang, Xiao-Ya Wang, Ru-Song Nie, Chen Chen, Yuan-Zheng Chen, Fang Xu
Rock and Soil Mechanics
The long-term train loads can result in problems such as strength attenuation, excessive cumulative settlement and even subsidence in sandy soil foundations and filling materials, which can jeopardize train operation safety. To understand the mechanism of the disease, it is necessary to explore the cumulative plastic deformation and pore water pressure characteristics of saturated sand under intermittent loading. Therefore, dynamic triaxial tests under continuous and intermittent loading with different dynamic amplitudes and confining pressures were performed. The test results showed that: (1) The cumulative plastic deformation-loading cycle curve of saturated sand exhibited a “zigzag” pattern. The intermittent effect led to …
Experimental Study On The Mechanical Response Of Buried Pipelines Under Different Subsidence Patterns,
2023
College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China
Experimental Study On The Mechanical Response Of Buried Pipelines Under Different Subsidence Patterns, Yu Zhang, Hao Liang, Liang Lin, You Zhou, Qing-Song Zhao
Rock and Soil Mechanics
The frequent occurrence of buried pipeline accidents caused by the ground collapse and subsidence makes it urgent to carry out experimental studies on the mechanical response under different subsidence effects. A systematical survey of the pipeline strain, earth pressure and soil deformation was conducted considering the effects of ground subsidence and collapse. The result showed that due to the arching effect at the top of the pipeline, the strain and earth pressure firstly increased and then decreased with the extension of the collapse zone, while they increased as the subsidence zone extended during the collapse and settlement. In the subsidence …
Improvement Of Rainfall Boundary Treatment Based On The Diffusion Wave Approximation Equation,
2023
Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, China
Improvement Of Rainfall Boundary Treatment Based On The Diffusion Wave Approximation Equation, Xu Wang, Mei Dong, Meng-Yue Kong, Yun-Peng Deng, Ri-Qing Xu, Xiao-Nan Gong
Rock and Soil Mechanics
During the simulation of rainwater infiltration, the conventional rainfall boundary cannot accurately reflect the influence of the variation of ponding water depth on the calculation of actual rainwater infiltration rate. To address this issue, the conventional rainfall boundary is improved by incorporating the diffusion wave approximation equation, allowing for the coupling of ponding water depth variations with actual infiltration rate during heavy rainfall events. Additionally, the accuracy of the improved boundary is validated through two classical experimental cases. The improved boundary is subsequently applied to the simulation of an actual engineering scenario. The findings indicate that the improved rainfall boundary …
Three-Dimensional Unified Mechanical Model And Calculation Method Of Uplift Capacity Of Horizontal Rectangular Anchor Plate In The Whole Region In Sand,
2023
Hunan Province Key Laboratory of Geotechnical Engineering Stability Control and Health Monitoring, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China; School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China
Three-Dimensional Unified Mechanical Model And Calculation Method Of Uplift Capacity Of Horizontal Rectangular Anchor Plate In The Whole Region In Sand, Wei Hu, Hui Wang, Chen Yao, Dong-Xue Hao, Dan-Da Shi
Rock and Soil Mechanics
Uplift of the horizontal rectangular anchor plate is a typical three-dimensional problem. However, it is difficult to characterize the sliding surface of soil around the anchor plate in the limit state for its shape is affected by a combination of the length-width ratio and embedment ratio of the anchor plate. Combining the results of ABAQUS 3D numerical simulation and 2D sliding surface analysis, it is found that the geometric form of the 3D sliding surface in any horizontal section within its buried depth range can be described by a closed graph, including four segments of straight lines parallel and equal …
Mechanism Of Liquefaction-Induced Lateral Spreading In Liquefiable Inclined Sites,
2023
Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, Beijing University of Technology, Beijing 100124, China
Mechanism Of Liquefaction-Induced Lateral Spreading In Liquefiable Inclined Sites, Ke-Min Jia, Cheng-Shun Xu, Xiu-Li Du, Xiao-Ling Zhang, Jia Song, Zhuo-Lin Su
Rock and Soil Mechanics
A numerical model of the liquefaction horizontal free-field shaking table test was developed based on the completed large-scale shaking table test of liquefaction horizontal free field using the OpenSees finite element platform, and the numerical model was verified. Based on this, a free-field numerical model of the overall inclined foundation was established, and the non-cyclic dynamic response of the liquefaction lateral spreading site and the mechanism of liquefaction-induced lateral spreading were discussed. The results show that the established numerical model can effectively simulate the seismic response in liquefiable sites. There was significant relative displacement at the interface between liquefiable loose …
Enhancing The Co2 Trapping Capacity Of Saudi Arabian Basalt Via Nanofluid Treatment: Implications For Co2 Geo-Storage,
2023
Edith Cowan University
Enhancing The Co2 Trapping Capacity Of Saudi Arabian Basalt Via Nanofluid Treatment: Implications For Co2 Geo-Storage, Muhammad Ali, Nurudeen Yekeen, Mirhasan Hosseini, Ghazanfer R. Abbasi, Amer Alanazi, Alireza Keshavarz, Thomas Finkbeiner, Hussein Hoteit
Research outputs 2022 to 2026
Mineralization reactions in basaltic formations have gained recent interest as an effective method for CO2 geo-storage in order to mitigate anthropogenic greenhouse gas emissions. The CO2/rock interactions, including interfacial tension and wettability, are crucial factors in determining the CO2 trapping capacity and the feasibility of CO2 geological storage in these formations. The Red Sea geological coast in Saudi Arabia has many basaltic formations, and their wetting characteristics are rarely reported in the literature. Moreover, organic acid contamination is inherent in geo-storage formations and significantly impacts their CO2 geo-storage capacities. Hence, to reverse the organic effect, the influence of various SiO2 …
Permeability Prediction For Expansive Soil Based On Physical Properties Using Artificial Neural Networks,
2023
Civil Engineering Department, Universitas Riau, Pekanbaru 28293, Indonesia
Permeability Prediction For Expansive Soil Based On Physical Properties Using Artificial Neural Networks, Ferry Fatnanta, Imam Suprayogi, Nicola Rabb Ranata, Soewignjo Agus Nugroho, Agus Ika Putra
Makara Journal of Technology
Permeability is a soil parameter related to the construction industry to understand the processes of infiltration, runoff, and settlement. The risk of testing errors is inevitable in permeability investigations, especially in expansive soils. Trial and error in permeability testing becomes difficult due to soils with small pore sizes and large shrinkage expansion. Several studies related to soil physical properties that affect permeability have been conducted. However, the correlation results obtained still have poor accuracy. Artificial neural networks (ANN) are machine learning systems that can change their structure to solve problems that are included in the system. The use of ANNs …
Improving Square Skirted Foundations Behavior On Sand,
2023
Researcher at Structural Engineering Department, Faculty of Engineering, Mansoura University, Egypt
Improving Square Skirted Foundations Behavior On Sand, Tamer Al-Shyoukhi, Ayman Altahrany, Mahmoud Elmeligy
Mansoura Engineering Journal
Shallow foundations' behavior is enhanced by using skirts to confine the soil beneath the foundation. The bearing capacity and settlement of skirted foundations resting on the sand are influenced by the size of the skirt cell and shear strength of sand. Experimental modelling was carried out on an axially square-skirted footing resting on sand in this study. Plaxis-3D software was used for numerical analysis to support the experimental results. The numerical analysis results validated the experimental results. The outcomes of the study demonstrated that skirts wider than the footing size increased the bearing capacity of skirted foundations. In the case …
Creep–Fatigue Constitutive Model Of Salt Rock Based On A Hardening Parameter,
2023
State Key Laboratory for the Coal Mine Disaster Dynamics and Controls, Chongqing University, Chongqing 400044 China,
School of Resources and Safety, Chongqing University, Chongqing 400044 China
Creep–Fatigue Constitutive Model Of Salt Rock Based On A Hardening Parameter, Jin-Yang Fan, Lu-Xuan Tang, Jie Chen, Zhen-Yu Yang, De-Yi Jiang
Rock and Soil Mechanics
Salt rock has been recognized as an ideal medium for energy storage or oil and gas storage because of its good creep and self-healing characteristics. Accurate characterization and prediction of the complex mechanical behavior of salt rock is the basis for ensuring the safety of underground space utilization project of salt caverns. Based on proposed parameters of hardening and other characteristic factors, in this study, a new creep–fatigue constitutive model is developed for salt rock considering complex loading and unloading paths. Based on the dislocation mechanism of salt rock deformation, hyperbolic damping elements are introduced as state variables to characterize …
Disintegration Characteristics And Mechanism Of Dispersive Soil Modified By Si/Ca Compound System,
2023
College of Water Resources and Architectural Engineering, Northwest A & F University, Yangling, Shaanxi 712100, China,
Institute of Geotechnical Engineering /Museum of Problematic Rock and Soil, Northwest A&F University, Yangling, Shaanxi 712100, China
Disintegration Characteristics And Mechanism Of Dispersive Soil Modified By Si/Ca Compound System, Yi-Fei Liu, Ze-Fan Bu, Dong-Ting Cai, Heng-Hui Fan, Zhuo Zhang, Han Ru, Juan-Li Ju
Rock and Soil Mechanics
Dispersive soil has the characteristic of being dispersed and lost when encountering water. In engineering practice, lime and cement are often used to modify dispersive soil, but doing so often has such problems as environmental pollution. The Si/Ca compound system composed of nano silica sol and calcium chloride is selected as the modified material for dispersive soil. The effect of the modification is studied by pinhole test, mud ball test, and dispersion and disintegration test. The mechanism of dispersive soil modified by Si/Ca compound system is explored by physical and chemical properties tests. The results show that the dispersibility of …
Dynamic Response And Characteristics Of Tapered Rigid Core Composite Cement- Soil Piles Under Cyclic Loading,
2023
College of Civil Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, China
Dynamic Response And Characteristics Of Tapered Rigid Core Composite Cement- Soil Piles Under Cyclic Loading, Jie He, Duan-Wei Guo, De-Xin Song, Meng-Xin Liu, Lei Zhang, Qi-Feng Wen
Rock and Soil Mechanics
Tapered rigid core composite cement-soil pile is an emerging type of composite pile. In order to investigate its bearing behavior in engineering applications such as highways and railways under long-term cyclic loading, model tests were conducted on four composite piles with different pile core wedge angles, static loading ratios and cyclic loading ratios. The ultimate bearing capacity under static loading as well as the cumulative settlement, pile axial force distribution, tip resistance and side friction resistance were evaluated. The results indicated that the bearing capacity of tapered inner core composite piles under static loading was better than that of constant …
Evolution Mechanism Of Deformation And Failure Of Rock Slope With Controlling Fissure Through Transparent Physical Model Experiments,
2023
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China,
University of Chinese Academy of Sciences, Beijing 100049, China
Evolution Mechanism Of Deformation And Failure Of Rock Slope With Controlling Fissure Through Transparent Physical Model Experiments, Xian-Lun Leng, Chuan Wang, Qian Sheng, Wen-Jun Song, Jian Chen, Zhan-Rong Zhang, Fei Chen
Rock and Soil Mechanics
The deformation and failure evolution process of rock slope during disaster incubation period is controlled by internal long fissures (controlling fissures), and the evolution mechanism is of great significance for the prevention of landslide disasters. Based on the transparent physical model experiment technology, two typical rock slopes with controlling fissures (one with a steep fissure in the upper part of slope and the other with a gently inclined fissure in the lower part) were selected as the objects, and the evolution process of deformation and failure inside the slopes was studied through physical model experiments using the self-developed equipment. The …
Infiltration Characteristics And Deformation Mechanism Of Rainfall-Induced Landslides In Three Gorges Reservoir Area Based On 1d And 2d Model Tests,
2023
Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education, China Three Gorges University, Yichang, Hubei 443002, China,
College of Civil Engineering & Architecture, China Three Gorges University, Yichang, Hubei 443002, China,
Badong National Observation and Research Station of Geohazards, China University of Geosciences, Wuhan, Hubei 430074, China
Infiltration Characteristics And Deformation Mechanism Of Rainfall-Induced Landslides In Three Gorges Reservoir Area Based On 1d And 2d Model Tests, Li Wang, Fang-Yun Nan, Shi-Mei Wangi, Yong Chen, Xiao-Wei Li, Zhi-Hong Fan, Yu-Shan Chen
Rock and Soil Mechanics
Shallow deformation of ancient landslides induced by heavy rainfall is the most serious geological disaster in China's Three Gorges Reservoir Area (TGRA). It is important to explore the infiltration characteristics and its shallow deformation mechanism caused by heavy rainfall. In this study, the rainfall-induced landslide of the TGRA was selected as the research object, and the distributions of the soil permeability coefficients for rainfall-type landslide were summarized. Considering the effects of heavy rainfall, one-dimensional (1D) soil column infiltration test and two-dimensional (2D) landslide model test were conducted to study the infiltration characteristics of landslide soil and the corresponding shallow deformation …
