SSCL-341 THE ADOPTION OF MECHANIZED EXCAVATION TECHNIQUES FOR THE SUPERCONDUCTING SUPER COLLIDER* C. Laughton, P. Nelson and T. Lundin Superconducting Super Collider Laboratory t Conventional Construction Division 2550 Beckleymeade Ave. Dallas, TX 75237 January 1991 *To be presented at the International High Level Waste Management Conference, Reno, Nevada, April, 1991. toperated by the Universities Research Association, Inc., for the U.S. Department of Energy under Contract No. DE-AC02-89ER4041!6.