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Now showing items 291-300 of 336
The Use of Measuring While Drilling and Wireline Logging to Identify the Geological Strata in Qatar
(
Qatar Univesrity Press
, 2020 , Conference Paper)
In the field of engineering and construction in the Middle East, it is a common practice to
economize a geotechnical investigation using a conventional scope, based on the lowest
price. This tends to compromise the project ...
Box Jacking/Pushing Method for Tunnel Construction in Rock: Doha Metro, Gold Line Project
(
Qatar Univesrity Press
, 2020 , Conference Paper)
The case of a box pushing tunneling method in rock, on Doha Metro Gold Line project,
successfully implemented to connect multiple entrance structures of Sport City station
under a live traffic junction, in a heavy urban ...
Steel Reinforced Grout for Strengthening of RC T-section Beams Deficient in Shear
(
Qatar Univesrity Press
, 2020 , Conference Paper)
numerous causes. Thus, proper strengthening and rehabilitation techniques are required
to restore the strength and extend the service life of the structures. Steel reinforced
grout (SRG) has recently been introduced as an ...
Influence of Aspect Ratio on the Bearing Capacity and Correlated Modulus of Subgrade Reaction for Shallow Foundations on Dense Sand
(
Qatar Univesrity Press
, 2020 , Conference Paper)
One of the most fundamental problems in the field of geotechnical engineering is the
prediction of bearing capacity and settlement of shallow foundations on cohesion-less
soil subjected to vertical central loading. The ...
Investigation of the Effect of the Force-Frequency on the Behaviour of a New Viscous Damper for Railway Applications
(
Qatar Univesrity Press
, 2020 , Conference Paper)
The primary purpose of this work is to experimentally investigate the damping
coefficient of a viscous damper, intended to be used in railway applications to reduce
noise emission. The viscous shock absorber used in this ...
Resource Recovery from Waste, Water and Wastewaters with Membrane Technologies
(
Qatar Univesrity Press
, 2020 , Conference Paper)
In this study, critical elements (Boron (B) and Rare Earth Elements (REE)) recovery is
studied with membrane technologies. Concentrated boron can be recovered by using
different technologies. Membrane technologies such as ...
Structural Efficiency of Steel Stiffening Deck Systems in Suspension Bridges Due to Gravity Loads
(
Qatar Univesrity Press
, 2020 , Conference Paper)
In this paper, suspended stiffened decks in suspension bridges are considered. Three
steel deck-stiffening systems are compared structurally; the plate girder, the box girder
and the stiffening truss. A three-span continuous ...
Impact of Draw Solution Concentration on Forward Osmosis Process: A Simulation Study
(
Qatar Univesrity Press
, 2020 , Conference Paper)
In this study, a simulation model was used to evaluate the performance of forward
osmosis process. A solution of low salinity was used as the feed solution in forward
osmosis to dilute saline solution (i.e. draw solution) ...
Concrete Hydration Model Characterization Using Evolutionary Optimization
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Pile thermal integrity assessment by means of temperature measurement has received
increasing attention in recent years. The thermal integrity testing method measures
temperature changes during the concrete curing process; ...
Climate Change and the Structural Resilience of the Doha Metro
(
Qatar Univesrity Press
, 2020 , Conference Paper)
In recent years, the Doha Metro has been the spearhead of Qatar's effort to expand and
upgrade its transportation infrastructure. In its current phase it will comprise three lines
of an approximate overall length of 76 km ...