RT Journal Article
SR Electronic
T1 Downhole geophysical investigations for a proposed deep highway cutting adjacent to a rail tunnel at Murrurundi, NSW, Australia
JF Geological Society, London, Engineering Geology Special Publications
JO Geological Society, London, Engineering Geology Special Publications
FD Geological Society of London
SP 283
OP 291
DO 10.1144/GSL.ENG.1997.012.01.25
VO 12
IS 1
A1 Won, G. W.
A1 Raper, R. W. J.
YR 1997
UL http://egsp.lyellcollection.org/content/12/1/283.abstract
AB Downhole seismic methods have been used to characterize the rock mass for a proposed deep highway cutting adjacent to an existing rail tunnel at Murrurundi, northern NSW, Australia. Site geological conditions are complex and with a major reverse fault intersecting the cutting. Two 120 m deep boreholes adjacent to the tunnel were geophysically logged through a sequence of basalt lavas, tuffs and agglomerates. Multichannel P and S wave sonic, density and dual focussed electric logs were used. Geophysical field tests results have been correlated with laboratory static and dynamic tests on selected rock core to characterize the in situ rock mass properties for finite element analysis.