Shaft sinking original-equipment manufacturer Herrenknecht is engaged in numerous feasibility studies with mining contractors in South Africa and other African countries, such as Zambia, for the ...

Big progress for new sewage pipe project in Heartland America Park A big breakthrough for Omaha's sewer separation project took place Saturday when a giant tunnel-boring machine drilled through a ...

Shaft sinking and raising are the focus for an increasing number of equipment manufacturers. E&MJ looks at some of the newest machines and concepts. One of the most hazardous yet essential operations ...