EGRESS BORING MACHINE CUTTER DEVELOPMENT

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$49,824.00
Award Year:
1987
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
5651
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Cobbs Engineering Inc
5350 E 46th St - Ste 200, Tulsa, OK, 74135
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
JAMES H COBBS
(918) 665-6467
Business Contact:
() -
Research Institution:
n/a
Abstract
THE PROGRAM GOALS FOR THE EGRESS BORING MACHINE REQUIRE A ROCK BORING SYSTEM WHICH WILL PRODUCE PENETRATION RATES OVER TEN TIMES GREATER THAN THOSE PRODUCED TO DATE UNDER SIMILAR CONDITIONS. THIS PROPOSAL IS TO DEVELOP A CUTTER SYSTEM WHICH USES THE CONCEPT OF AN INTERRUPTED DISC CUTTER. IT WILL TAKE FULL ADVANTAGE OF INDEXING BETWEEN CRATERS TO MAXIMIZE ROCK REMOVAL WHILE MINIMIZING THRUST REQUIREMENTS. SUCH REDUCTION WILL INCREASE THE LIFE OF BOTH THE CUTTING AND BEARING STRUCTURES. INTEGRAL TO THE STUDY IS THE DEVELOPMENT OF A REALISTIC MATHEMATICAL MODEL OF ROCK FAILURE MECHANICS DURING BORING. DEVELOPMENT OF THIS MODEL WILL PERMIT DEVELOPMENT OF AN OPTIMUM CUTTING STRUCTURE WHICH WILL HOLD PROMISE OF ACHIEVING THE PROGRAM GOALS. WITH DEVELOPMENT OF AN OPTIMUM CUTTING STRUCTURE, DESIGN OF THE REQUIRED BEARING AND SUPPORT STRUCTURES WILL BE POSSIBLE. SUCCESSFUL DEVELOPMENT OF THE PROPOSED CUTTER CAN PRODUCE SIGNIFICANT IMPROVEMENTS IN BORING TECHNOLOGY WHICH WILL ENHANCE BOTH ECONOMICS AND SAFETY OF SHAFT AND TUNNEL CONSTRUCTION.

* information listed above is at the time of submission.

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