Thursday, February 26, 2015

Bulli Pass Rock fall

'The car just exploded': couple's Bulli Pass rockfall ordeal
Small rock of about 30 cm diameter fell from natural slope onto passing car. The above photo shows the outcome. Very lucky that no serious injuries resulted.

Sunday, August 5, 2012

Marc Hendrickx and Associates

Marc Hendrickx and Associates Pty Ltd
Revealing Earth's Secrets

Marc Hendrickx and Associates Pty Ltd

Specialist geological services to the construction and mining industry. Providing Common Sense Solutions to Wicked Problems.

Geological investigation and interpretation for civil construction and mining
Engineering Geology
Qualitative/Quantitative Slope Risk Analysis
Slope Remediation Design
Landslide Risk Assessment
Emergency Landslide Response
Geological Investigation of Natural Occurrences of Asbestos

For a quote contact marchgeo at gmail dot com

Thursday, April 5, 2012

Lawrence Hargrave Drive-RMS animation

NSW Roads and Maritime Services have released an interesting video highlighting problems with the embankment in the northern amphitheatre between Clifton and Coalcliff. The cross section shown in the video is a little unrealistic but its useful in outlining aspects of the problem. The road here is constructed on talus below a buried cliff face in the Scarborough Sandstone. There's a bund here to protect the road from rocks and debris flows from the slope above that includes a steep slope in Stanwell Park Claystone and Bulgo Sandstone cliffs. The later not quite as high as those in the southern amphitheatre.
Link to video via this summary page HERE.
I had the pleasure of working on the bridge construction project back in 2003-2005. The budget at the time did not provide for a bridge over the northern amphitheatre.

Wednesday, April 4, 2012

Landslides from history: Coalcliff 1880s

Photos from the Wollongong Library archive showing landslides circa 1880s in the southern amphitheatre (embankment failure at top) and around the middle headland (slump in centre), between Coalcliff and Clifton (Google-bottom-southern amphitheatre in centre of photo, coke works at Coalcliff visible at top).
Note also the Hawkesbury Sandstone plateau visible at the LHS of the Google image.

This was called the Lower South Coast Road but was re-named Lawrence Hargrave Drive in 1947.
(DMR 22nd annual report)

Saturday, March 31, 2012

Friday, March 30, 2012

Coming Soon

Landslides Downunder
Devoted to discussing Australian Landslides, large and small.
Reports and photos of new and historical landslides.
Assessment, investigation and remediation.