The Incline Tunnel, S&S Quarries, Inc., is the access to an underground rock mine in Knoxville, IA, owned by Bruening Rock Products.
The Outstanding Underground Project
Shotcrete in China’s Longest Tunneling Project
In the Guanjiao Mountains of western China, at an average altitude of 11,483 ft (3500 m), two parallel railway tunnels 21 miles (33 km) long are being constructed
Mine Visits and Safety
Many of us in the shotcrete world have had the occasion to either visit or work in underground mines.
Equipment Selection – The Key to a Successful Soil Nailing Project
There are many things to consider when selecting the appropriate equipment for a soil nailing project.
Shotcrete as a Long-Term Solution to Power Canal Wall Stabilization
Located in central Ontario?s cottage country and founded in 1914, the Peterborough Utilities Commission (PUC) operates as a not-for-profit organization providing safe and reliable supplies of electricity and water to the city of Peterborough, ON, Canada
Underground Shotcreting
Many tunnels and mines constructed throughout North America in the last 20 years have successfully used shotcrete as a major element of support during excavation and as part of the lining system.
You Can’t Shoot What You Can’t See
The Importance of Lighting in an Underground Environment.
Changing Methods of Sinking Vertical Shafts in Mining
The way the mining industry and contractors work with vertical shafts is changing through the introduction of technologies such as Murray & Roberts (M&R) Cementation?s advanced shaft-lining technology.
The Elevated Gam
Materials scientist and concrete expert George Yoggy has studied the shotcrete and gunite processes for more than 50 years, focusing not only on tunnel and mine construction, but also turning his eye toward watershapes.