Thanks to continuous development of equipment and explosives, drill and blast tunneling has come a long way from the fire and ice days
In his bimonthly column, Keivan Rafie talks drill and blast tunneling. Techniques have definitely developed since the pre-explosives days of using fire and cold water to crack open rock. Read on to learn about the myriad of factors in play today when using this type of tunneling method.
About the AuthorMore Content by Keivan Rafie