Brendan C . O'Kelly
Brendan O'Kelly welcomes COLLABORATIVE RESEARCH in the fields of Environmental Geotechnics and Geotechnical Engineering. To discuss research and practice collaborations, please contact me at my university email address [email protected]
Brendan O'Kelly earned bachelor’s, masters and Doctoral degrees in civil and geotechnical engineering in 1992, 1994 and 2000 from University College Dublin, where he held the posts of Pierce-Newman Fellow in Civil Engineering, Research Fellow in Soil Mechanics and Assistant Lecturer in Civil Engineering for successive two-year periods (1994–2000). He earned his PhD on the topic of Development of a New Apparatus for Hollow Cylinder Testing under Generalised Stress Conditions. He then worked as a geotechnical engineer with Scott Wilson Consulting Engineers, UK (serving geotechnical design and resident engineer secondments), before joining the Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, as Lecturer in Geotechnical Engineering late 2001. He is a Chartered Engineer and Chartered Environmentalist (ICE, UK) and was made a Fellow of Trinity College Dublin (2010). In 2012, during sabbatical, he served as Experienced Researcher on Marie Curie IAPP project (Nonstationary response of spatially extended structures) based in Plaxis BV, The Netherlands. He is an Associate Editor for the journals Environmental Geotechnics (ICE, UK) and Geotechnics (MDPI) and a Council Member of The International Society of Environmental Geotechnology. His main research interests are soil consistency limits, ground improvement, geotechnics of water- and wastewater-treatment sludges and the geomechanical behavior/properties of peat and other highly organic soils, on which he has published more than 100 refereed journal papers.
Address: Ireland
Brendan O'Kelly earned bachelor’s, masters and Doctoral degrees in civil and geotechnical engineering in 1992, 1994 and 2000 from University College Dublin, where he held the posts of Pierce-Newman Fellow in Civil Engineering, Research Fellow in Soil Mechanics and Assistant Lecturer in Civil Engineering for successive two-year periods (1994–2000). He earned his PhD on the topic of Development of a New Apparatus for Hollow Cylinder Testing under Generalised Stress Conditions. He then worked as a geotechnical engineer with Scott Wilson Consulting Engineers, UK (serving geotechnical design and resident engineer secondments), before joining the Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, as Lecturer in Geotechnical Engineering late 2001. He is a Chartered Engineer and Chartered Environmentalist (ICE, UK) and was made a Fellow of Trinity College Dublin (2010). In 2012, during sabbatical, he served as Experienced Researcher on Marie Curie IAPP project (Nonstationary response of spatially extended structures) based in Plaxis BV, The Netherlands. He is an Associate Editor for the journals Environmental Geotechnics (ICE, UK) and Geotechnics (MDPI) and a Council Member of The International Society of Environmental Geotechnology. His main research interests are soil consistency limits, ground improvement, geotechnics of water- and wastewater-treatment sludges and the geomechanical behavior/properties of peat and other highly organic soils, on which he has published more than 100 refereed journal papers.
Address: Ireland
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Papers by Brendan C . O'Kelly
• Strength and compressibility of biopolymeric-treated subsurface soils
• Flow characteristics of biopolymeric-treated hydraulic soil-based structures
• Erosion control of biopolymeric-treated collapsible soils
• Dust suppressions of biopolymeric-treated sand dunes
• Energy storage systems in arid land biopolymeric-treated soils
• Toxic metal removals from wastewater in treatment plants
• Strength and compressibility of biopolymeric-treated subsurface soils
• Flow characteristics of biopolymeric-treated hydraulic soil-based structures
• Erosion control of biopolymeric-treated collapsible soils
• Dust suppressions of biopolymeric-treated sand dunes
• Energy storage systems in arid land biopolymeric-treated soils
• Toxic metal removals from wastewater in treatment plants
Free access to the full published article is available using the following Eprint link: https://www.tandfonline.com/eprint/3TU56YBHAQH2MGTWD8TF/full?target=10.1080/17486025.2021.2015457
Abstract: In this study, the potential of pulverized waste tires (PWTs), either on their own or mixed with soil (well graded sand), to act as adsorptive fill materials was evaluated by conducting laboratory tests for accessing their adsorption and geotechnical properties. PWT (0, 5, 10, 15, 25, and 100 wt%) was mixed with soil to evaluate the removal of benzene, toluene, ethylbenzene, and xylene (BTEX) components and two heavy metal ions (Pb2+ and Cu2+). Adsorption batch tests were performed to determine the equilibrium sorption capacity of each mixture. Subsequently, compaction, direct shear, and consolidation tests were performed to establish their geotechnical properties. The results showed that BTEX had the strongest affinity based on the uptake capacity by the soil–PWT mixtures. The adsorption of BTEX increased for greater PWT content, with pure PWT having the highest adsorption capacity toward BTEX removal: uptake capacities for xylene, ethylbenzene, toluene, and benzene were 526, 377, 207 and 127 µg/g sorbent, respectively. Heavy metal removal was increased by increasing the amount of PWT up to 10 wt%, and then decreased beyond this ratio. Compacted soilePWT mixtures comprising 5–25 wt% PWT have relatively low dry unit weight, low compressibility, adequate shear capacity for many loadbearing field applications, and satisfactory adsorption of organic/inorganic contaminants, such that they could also be used as adsorptive fill materials.
nation. Unfortunately, Pakistan is currently experiencing one of its worst periods of power shortages. The purpose of this paper is based on diagnosing the present electricity crisis in Pakistan and to discuss the outlook for the diffusion of wind power in the mix of established electricity generation, which relies too heavily on imported fossil fuels at the cost of precious foreign exchange. The existing electricity transmission and distribution (T&D) network has miserably failed to meet the country’s requirements. Diversification of the present electricity-generation mix, with a significant increase in the contribution from exploitable wind-power potential recommended, along with upgrading and overhaul of existing power plants and the T&D infrastructure, reductions in non-technical losses and enhancing investment attractiveness (for both thermal and renewable) are some key measures likely to facilitate improved and affordable electricity supply and mitigate the current and forecasted long-term electricity supply–demand gap. Specific recommendations are presented towards overcoming identified challenges and obstacles to the harnessing of the country’s abundant renewable energy resources, especially for wind power generation.
fall-cone and other approaches employed for consistency limit determinations on fine-grained soil,
highlighting their use and misuse for soil classification purposes and in existing correlations. As the PL
does not correspond to a unique value of remoulded undrained shear strength, there is no scientific
reason why PL measurements obtained using the thread-rolling and shear-strength-based fall-cone or
extrusion methods should coincide. Various correlations are established relating liquid limit values
deduced using the percussion-cup and fall-cone approaches. The significance of differences in the
strain-rate dependency on the mobilised fall-cone shear strength is reviewed. The paper concludes with
recommendations on the standardisation of international codes and the wider use of the fall-cone
approach for soft to medium-stiff clays in establishing the strength variability with changing water
content and further index parameters.