Tunneling
A two-week course covering soft ground and hard rock tunnel techniques. Shield tunneling and equipment, liner plate installation, jack-leg drilling and mucking operations are emphasized. The use of drilling, blasting and grouting techniques under hard rock conditions is covered.
![](https://oltc.org/wp-content/uploads/2018/03/tunnelclass1-1-300x250.jpg)
Graduates must demonstrate the ability to select and use spiling boards, breast boards, straw and other related materials for installation of liner plates to a proficiency and production standard generally accepted in the industry.
Prerequisites: Confined Space Entry