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Full-Text Articles in Engineering
Human Risk Assessment Of Organic Contaminants In Reclaimed Wastewater Used For Irrigation, S. Weber, Stuart Khan, J. Hollender
Human Risk Assessment Of Organic Contaminants In Reclaimed Wastewater Used For Irrigation, S. Weber, Stuart Khan, J. Hollender
Faculty of Engineering - Papers (Archive)
Current water quality guidelines for reclaimed wastewater have predominantly addressed risks associated with the presence of microbial organisms. Comparatively, chemical parameters have been largely overlooked or inadequately considered. Acceptable levels of chemical parameters will be dependant on the proposed reuse applications for the water and, in many cases, site-specific factors such as the degree of dilution with water from other sources. However, some general principals for the determination of acceptable levels of chemical contaminants in reclaimed water may be applied universally. This study describes a general risk-assessment approach to the determination of acceptable contaminant concentrations. It provides some analysis of …
Experimental And Numerical Methodology Assessment Of Load Transfer Capacity Of Bolts, Najdat I. Aziz, Hossein Jalalifar
Experimental And Numerical Methodology Assessment Of Load Transfer Capacity Of Bolts, Najdat I. Aziz, Hossein Jalalifar
Faculty of Engineering - Papers (Archive)
In Australia, the common method of laboratory testing of bolt for load transfer capacity determination is by short encapsulation push testing. Some concerns are raised about the validity of the test methodology, as the method does not reflect on the actual load transfer characteristics of bolt in real field situation. Thus, laboratory testes were carried out to examine the load transfer mechanisms of bolts in both the push and pull conditions. Tests were conducted by shearing a short resin encapsulated bolt out of a cylindrical steel sleeve. Three types of bolts with different surface profile configurations were tested. The study …
Integrated Field Measurements And Track Simulations For Condition Assessment Of Railway Track, Sakdirat Kaewunruen, Alexander Remennikov
Integrated Field Measurements And Track Simulations For Condition Assessment Of Railway Track, Sakdirat Kaewunruen, Alexander Remennikov
Faculty of Engineering - Papers (Archive)
Assessment of condition of railway track is crucial for track design, repair and effective maintenance operations. In-field dynamic testing in combination with track modelling represents an efficient strategy for identification of the current condition of railway track structure and its components. This paper presents an integrated approach combining field measurements, experimental modal analysis and finite element modelling to evaluate the dynamic parameters of the in-situ railway track components. Based on the discrete support model, a two-degree-of-freedom (2DOF) dynamic model of railway track is analysed in order to extract the modal properties of the track components from the field dynamic testing …