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السجلات المعروضة 11 -- 20 من 21
Dynamic Imaging of Hydrate Specific Area Evolution during Xenon Hydrate Formation
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Gas hydrates are ice-like structures formed under high pressure and low temperature
conditions. They are considered as a potential energy source due to their abundance
and the increase in energy demand worldwide. A fundamental ...
Constructability and Economical Comparison Between Two Proposed Permanent Shoring Systems in Qatar: A Case Study
(
Qatar Univesrity Press
, 2020 , Conference Paper)
This paper introduces the constructability and economic feasibility study of using one
of the proposed two types of permanent shoring system for a highway project in Qatar.
The cast-in-situ cantilever retaining wall and ...
Embedded Retaining Wall Design and Performance Monitoring for Deep Excavation in Geological Conditions of Qatar
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Embedded retaining walls such as diaphragm walls and secant bored pile walls have
become viable water-tight earth retaining and stabilizing systems for deep excavation
in urban areas. In this article, the design aspects ...
Influence of Fines on the Compressibility of Surface Sands in Kuwait
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Influence of fines on the strength and compressibility of compacted fill soil is very
important in determining its behavior under applied loads. In Kuwait, fill soil is usually
backfilled from excavated surface soils ...
Fully Softened and Residual Shear Strengths of Midra Shale
(
Qatar Univesrity Press
, 2020 , Conference Paper)
This paper presents a comparison of the fully softened shear strengths measured using
the triaxial and torsional ring shear devices for a shale that possesses noticeably high
plasticity and induration. The residual shear ...
Treatment of Wastewater Using Reverse Osmosis for Irrigation Purposes
(
Qatar Univesrity Press
, 2020 , Conference Paper)
This work investigates the performance of reverse osmosis (RO) for the reclamation
of treated sewage effluent (TSE) to be used as irrigation water for food crops. The
feed water used in this study was a real sample of ...
Geotechnical Aspects of Sub-Sea Tunnelling on the Musaimeer Pumping Station and Outfall Tunnel Project
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Musaimeer outfall tunnel is one of the longest storm water tunnels in the world with
a total length of 10.2 km. The tunnel is connected via a drop shaft to the main pump
station. This system will accommodate surface and ...
Influence of Water Table Fluctuation on Natural Source Zone Depletion in Hydrocarbon Contaminated Subsurface Environments
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Most of the prediction theories regarding dissolution of organic contaminants in the
subsurface systems have been proposed based on the static water conditions and
the influence of water fluctuations on mass removal requires ...
Predicted and Back-calculated Coefficients of Permeability of Randomly Fractured Rock Mass: A Case Study
(
Qatar Univesrity Press
, 2020 , Conference Paper)
This paper presents the discrepancy between the coefficients of permeability measured
for randomly fractured limestone using field falling-head tests and that back-calculated
for the same rock mass based on the actual ...
Hydrogen Gas Production from the Injection of Nanoscale Zero-Valent Iron and Sodium Borohydride Solutions: Potential Effects Near Injection Wells
(
Qatar Univesrity Press
, 2020 , Conference Paper)
The injection of nano-scale zero-valent iron (nZVI) is a remediation technique for the
treatment of organic and metal contamination in soil and groundwater. The hydrogen gas
(H2) produced during the reaction of nZVI and ...