Browsing PhD Dissertations - DO NOT EDIT by Title
Now showing items 260-273 of 273
-
TESTING AND EVALUATION OF POLYMERIC SPRAY APPLIED PIPE LINING IN PRESSURE PIPE APPLICATIONS
(2023-08-30)**Please note that the full text is embargoed until 08/01/2024** Pressure pipes are an important component of pipe infrastructure for water mains, distribution lines, fuel and gas piping, process piping, building services ... -
The Impact of Improper Solid Waste Management on Public Health of African Cities. The Case of Addis Ababa City, Ethiopia.
(2023-08-16)Many African cities are generating an ever-increasing amount of waste and the effectiveness of their solid waste collection and disposal systems is currently declining. Therefore, research has been striving to develop a ... -
THE ROAD MAP FOR SUSTAINABLE WASTE MANAGEMENT IN THE FEDERAL DEMOCRATIC REPUBLIC OF ETHIOPIA
(2023-08-16)Solid Waste Management (SWM) is a global issue from its social, environmental, and economic aspects. Poor SWM is one of the significant causes of resource degradation, environmental pollution, and public health problems. ... -
THERMAL PROPERTIES OF WATER REPELLENT SANDS: EXPERIMENTAL AND THEORETICAL EVALUATION
(2022-08-17)**Please note that the full text is embargoed until 8/16/2024** ABSTRACT: Unsaturated hydrophobic soils, induced by the decomposition of plant roots or chemical or oil contamination et al., may have potentially negative ... -
THERMO-HYDRO-MECHANICAL BEHAVIOR OF UNSATURATED CLAYEY SOILS VIA THERMO/SUCTION-CONTROLLED RING SHEAR TESTING
(2015-12-08)There is a lot of geotechnical infrastructure made of compacted soil, or resting on unsaturated ground, which involves a wide range of deformations. Calculation of foundation settlement, for instance, requires a good ... -
TOWARD A SEISMIC RESISTANT STEEL STAGGERED TRUSS FRAMING SYSTEM (STF)
(2020-04-22)The Staggered Truss Framing (STF) system is a type of steel structural system used in mid- to high-rise buildings. It was initially developed in the 1960s in order to create a steel framing system that has low floor-to-floor ... -
TOWARD HIGH-RESOLUTION FLOOD FORECASTING FOR LARGE URBAN AREAS - NEW SOLUTIONS FOR 1D ROUTING
(2017-05-12)The ability to forecast flow, depth, and velocity in flooding events is one of the most important needs in highly populated urban areas. Urbanization and climate change highlight the necessity to understand and accurately ... -
TRANSIENT SEEPAGE AND SLOPE STABILITY ANALYSIS IN PARTIALLY SATURATED EARTHEN DAM
(2020-08-27)The problem of slope stability in earthen dams is a major concern to geotechnical engineers. Traditionally, the seepage through embankments and other geotechnical structures is estimated using hydraulic properties of ... -
Unsaturated Soil Behavior Under Large Deformations Using A Fully Servo/suction-controlled Ring Shear Apparatus
(Civil & Environmental Engineering, 2011-07-14)In recent years, the key hypotheses of most elasto-plastic constitutive frameworks postulated for unsaturated soils have been validated via suction-controlled oedometer, triaxial, and direct shear testing. These techniques, ... -
USE OF TIME-DOMAIN REFLECTOMETRY TO CHARACTERIZE THERMAL AND HYDRAULIC PROPERTIES OF UNSATURATED SANDS
(2021-01-06)Unsaturated soil is an essential consideration for many geotechnical engineering fields, for example, soil bearing capacity, soil lateral earth pressure, slope stability analysis, and seepage-related problems. Thermal-hy ... -
UTILIZATION OF GEOCELL-REINFORCED RAP MATERIAL BASE LAYER IN FLEXIBLE PAVEMENTS: EXPERIMENTAL AND NUMERICAL STUDIES
(2018-12-07)Reclaimed asphalt pavement (RAP) materials have been considered as one of the most sustainable and cost-effective options in the pavement industry. The use of RAP materials in pavement construction reduces natural resources ... -
UTILIZING LOAD TESTS AND SITE INVESTIGATION DATA TO PREDICT DESIGN LOAD CAPACITIES FOR DRILLED SHAFTS IN DIFFERENT GEOLOGIC FORMATIONS
(2021-08-06)Precise predictions of the design capacities of drilled shafts on weak rock formations is vital for a better design of foundations. Irregularities in rock formations due to weathering cause discrepancies in actual bearing ... -
Utilizing the State of Art Technologies to Assess and Address Urban Flooding
(2019-08-30)Today, 55% of the world’s population lives in urban area, a proportion that is expected to increase to 60% by 2050. Projections show that urbanization, the gradual shift in residence of the human population from rural to ... -
Wide Band-Gap Metamaterials as Seismic Shields
(2023-07-20)In the past decade, a new paradigm gained popularity among researchers aiming to protect structures from low-frequency seismic vibrations using metamaterials. However, developing a workable design for metamaterials is still ...