LARGE DIAMETER BLIND SHAFT DRILLING

 

WHAT IS BLIND SHAFT DRILLING?

 

Blind shaft drilling is the process of excavating large diameter vertical shafts into the earth mechanically with a full-face drill head.  The drill head is the business end of a submersible assembly consisting of weighted cylinders and stabilizers to provide the motive force for penetration into the rock.  The assembly is rotated from the surface using a high torque rotary drive.  As the rock is broken by the combined action of the weighted assembly rotated over it, the cuttings are removed continually with a flow of water powered by an airlift that transports the material to the surface where the rock is separated and the water is recycled into the process.

 

ALAN ZENI – CONSULTING

 

40 YEARS OF EXPERIENCE IN THE BLIND SHAFT DRILLING BUSINESS

 

In 40 years of competitive private contracting, I participated in the design, operation, manufacture and utilization of large diameter mechanical blind and raise-bore shaft drilling equipment on many projects worldwide.  Starting at the very bottom of the organization, I advanced through the Zeni family business to the presidency of the company.

Alan Zeni    Contact Information:

 

Cell Phone  304-685-7434

 

Email   alan.zeni4@gmail.com