Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Entire DC Network
Seismic Site Classification Practice In Australia, China And India: Suitability, P Anbazhagan, M Neaz Sheikh, Hing-Ho Tsang
Seismic Site Classification Practice In Australia, China And India: Suitability, P Anbazhagan, M Neaz Sheikh, Hing-Ho Tsang
Faculty of Engineering - Papers (Archive)
Seismic site classifications are widely used to represent seismic site effects and estimate the hazard parameters at soil surface. Most countries including Australia, China and India follow seismic site classification system similar to that in International Building Code (IBC), which is based on 30 m average shear wave velocity (SWV), Standard Penetration Test (SPT) N values and undrained shear strength. The site classification system in IBC is developed based on the studies carried out in United States. The present paper presents the seismic site classification according to IBC considering 30 m average SWV and SPT N and compares with seismic …
Impacts Of Coal Shrinkage, Permeability And Petrography On Gas Regime In Mines Case Study: Tahmoor Coal Mine, Nsw, Australia, Naj Aziz, Ian Porter, F Sereshki
Impacts Of Coal Shrinkage, Permeability And Petrography On Gas Regime In Mines Case Study: Tahmoor Coal Mine, Nsw, Australia, Naj Aziz, Ian Porter, F Sereshki
Faculty of Engineering and Information Sciences - Papers: Part A
The volumetric changes in the coal matrix (Coal Shrinkage), permeability under various gas environment conditions as well as perographical properties were studied in the laboratory. The shrinkage and permeability of coal were examined with respect to changing gas type and confining pressures. The shrinkage tests were carried out in high-pressure bombs while the permeability study was conducted in a specially constructed high-pressure chamber. Methane (CH4), carbon dioxide (CO2), nitrogen, (N2) and a 50%-50% volume mixture of CO2/CH4 gas were used in the study. The tests showed that under different pressure levels gas type affected permeability and shrinkage characteristics of coal. …