تصفح Theme 2: Advances in Infrastructure Sustainability, Renovation, and Monitoring حسب تاريخ النشر
السجلات المعروضة 21 -- 40 من 68
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Sustainability Driven Strategy for Achieving Sustainable Infrastructure: Musaimeer Pumping Station and Outfall Project
( Qatar University Press , 2023 , Conference Paper)The increasing emphasis on global sustainability issues such as climate change, loss of biodiversity, deforestation, and water scarcity has provided a strong mandate for the construction industry to incorporate sustainable ... -
Launching a 148m-Long Tunnel Boring Machine from a 15m-Inner Diameter Shaft
( Qatar University Press , 2023 , Conference Paper)The city of Doha has grown and expanded rapidly in the last 20 years, but this growth has strained the country's infrastructure, including its aging sewerage system and treatment facilities. ASHGHAL has therefore launched ... -
The Use of Demolished Concrete Lumps (DCL) in Rectangular CFSTs Under Flexure
( Qatar University Press , 2023 , Conference Paper)This paper investigates the flexural performance of rectangular concrete-filled steel tube (CFST) beams that are partially incorporated with demolished concrete lumps (DCLs). In total, three CFST beams were prepared and ... -
Modeling Asphalt Pavement Frictional Properties using Different Machine Learning Algorithms
( Qatar University Press , 2023 , Conference Paper)The objective of this work is to use some machine learning algorithms and test its efficiency in developing models to predict Locked Wheel Skid Trailer (LWST) values from Dynamic Friction Tester (DFT) and Circular Texture ... -
A Markovian-Genetic Algorithm Model for Predicting Pavement Deterioratio
( Qatar University Press , 2023 , Conference Paper)Pavement structures are constantly deteriorating due to many distresses, for instance cracks and rutting that are initiated and expanded. Deterioration models of pavement structures is an important component of pavement ... -
Ashghal Quality Assurance & Quality Control system - QSD Role in Monitoring & Reporting the Quality Performance in Ashghal Projects
( Qatar University Press , 2023 , Conference Paper)Ashghal has established a robust system of quality control and quality assurance for all projects constructed by Ashghal. Ashghal Departments are supervising a sophisticated system of quality control and quality assurance ... -
Ashghal Guidelines for the Evaluation and Repair of Sinkholes
( Qatar University Press , 2023 , Conference Paper)Sinkholes are a common and recurring problem with potential safety risks to road users and authorities. A sinkhole is a void in the ground caused by natural and/or manmade activities, and mainly associated with carbonate ... -
Utilisation of Waste Plastics Admix with Laterite Soil for Production of Road Pavement Interlocking Blocks
( Qatar University Press , 2023 , Conference Paper)Plastic wastes are non-biodegradable and hence pile up in refuse dumps and streets constituting an eyesore and menace to the environment. Some of them end up in drainages and waterways where they block water passages ... -
Marine Dredging Sediments Valorization in Self-Compacting Concretes
( Qatar University Press , 2023 , Conference Paper)Rock and eroded soil are transported by wind, tide, and human action (development works), and deposited as sediment in ports, estuaries, and rivers. The sediment accumulation at the bottom of ports disrupts maritime ... -
Impact of the Fiber Distribution Characteristics on the Uniaxial Behaviour of Fiber-Reinforced Composites- An Experimental Study
( Qatar University Press , 2023 , Conference Paper)The demand for development of fiber-reinforced composites has enhanced as the practise of integrating fibres into concrete has become prevalent over the past few decades.. The intersection zone where the fiber crossing the ... -
Planning and Implementing of Effective Enabling Works for a Successful TBM Tunnelling Project
( Qatar University Press , 2023 , Conference Paper)The outfall tunnel, which forms part of the Musaimer Pump Station and Outfall project (MPSO), is a 10.2 km long subsea tunnel that extends from the south coast of Doha, starting onshore, and continues under the Arabian ... -
Influence of Pier Stiffness on Track-Bridge Interaction
( Qatar University Press , 2023 , Conference Paper)The bridge is a common engineering structure over which a rail track is often laid. With the introduction of continuous welded rail (CWR), major rail tracks have shifted worldwide from jointed rail to continuous welded ... -
Backfilling Shaft Surround Using Recycled Concrete Waste Material
( Qatar University Press , 2023 , Conference Paper)The massive development in the State of Qatar to fulfil the Qatar National 2030 Vision requires efforts to direct the construction sector towards reducing economic, social and environmental impacts through the application ... -
Characterisation of Sewage Sludge and Municipal Solid Waste for Use as Cementitious Materials
( Qatar University Press , 2023 , Conference Paper)Volumes of accumulated solid waste materials of sewage sludge (SS) and municipal solid waste (MSW) in Qatar continue to increase annually with a potentially negative impact on the environment. This paper presents an ... -
Utilization of Recycled Materials in Infrastructure Projects: Ashghal Approach
( Qatar University Press , 2023 , Conference Paper)As a result of numerous infrastructure projects which have taken place in Qatar in the last decade, there has been an unprecedented increase in demand for construction materials. In addition, the huge program of infrastructure ... -
Self-compacting Backfills using Fly Ash and Dredged Marine Sediments for Public Work Applications
( Qatar University Press , 2023 , Conference Paper)Sediment accumulation at the bottom of ports disrupts maritime activities and disturbs the physicochemical balance of water bodies. In France, the maintenance of the 6500-kilometer long coastline would require the extraction ... -
Effect of Chemicals on Compressive Strength of Plastic-Laterite Interlock Paving Blocks
( Qatar University Press , 2023 , Conference Paper)This research centres on the need to develop a simple but sustainable material for the utilization of the quantum of plastic wastes that litter our environment. The research uses waste plastics and laterite soil and converts ... -
Robust Geotechnical Hazard Identification and Assessment for Major Underground Projects in Qatar. Case Study: South of Wakrah Pumping Station and Outfall (SWPSO) Project
( Qatar University Press , 2023 , Conference Paper)The recent global development in geotechnical and geophysical investigation methodologies has continued to improve the possibility of early identification of critical geohazards and mitigation of risks associated with ... -
Assessment of the Current Frequency Calculation Methods Used in the Determination of the Dynamic Modulus Value in Pavement Design and Analysis
( Qatar University Press , 2023 , Conference Paper)The dynamic modulus |E*| is used in the Mechanistic-Empirical Pavement Design Guide (MEPDG) to express the viscoelasticity of asphalt material at a range of temperatures and loading frequencies. As a result, the current ... -
Identification of Karstic Features with Extensive Geophysical Investigation for Underground Infrastructure - South of Wakrah Pumping Station and Outfall (SWPSO) Project
( Qatar University Press , 2023 , Conference Paper)There has been a significant increase in the number of underground infrastructure projects built in a short period because of Qatar's goal of effective mass transit and robust urban drainage infrastructure, as well as the ...