Development of Rock Engineering

Rocscience Inc. The following video provides a brief history by Dr. Evert Hoek of the field of rock engineering, with a look at a number of interesting case studies and examples. See the video on YouTube “Evert Hoek was born in Zimbabwe, graduated in mechanical engineering from the University of Cape Town and became involved in rock mechanics in 1958 when he started working in research on problems of brittle fracture associated with very deep … Read more

Point load test

“Point load testing is used to determine rock strength indexes in geotechnical practice. The point load test apparatus and procedure enables economical testing of core or lump rock samples in either a field or laboratory setting”. Text from Using the point load test to determine the unxial compressive strength of coal measure rock. Stella Jhang Kerry Magner

Huge rock collapse in China

euronews (in English) Caught on tape: Huge rocks collapse, fall on highway in China. A rockfall blocked a section of highway in the southwestern Chinese city of Guiyang on Monday. Huge rocks collapsed only minutes after highway patrol inspectors had stopped traffic from passing the road section due to peculiar sounds coming from the mountain flanking the highway.

World record for rockfall protection

Geobrug AG New RXE-8000 rockfall barrier stops a boulder of 20 metric tons in a free fall of 43 meters in Geobrugg’s test facility Lochezen in Walenstadt/Switzerland – this means world record! Some benchmark data: – Free falling 43 m = 103 km/h – Impact energy 8000 kJ – 8.5 meters barrier deflection – 85 % residual barrier height – Almost 100 % height in adjacent field

Rock mechanics – Papers

Rock mechanics: an introduction for the practical engineer Evert Hoek. “This paper is the text of three lectures delivered by the author at the Imperial College of Science and Technology, London in November 1965 as part of the University of London series of Special University Lectures in Mining and Metallurgy…”.