SBIR-STTR Award

A Continuous Explosive Tunneling System
Profile last edited on: 12/17/14

Program
SBIR
Agency
AF
Total Award Amount
$542,857
Award Phase
2
Principal Investigator
Dennis Martin
Activity Indicator

Company Information

Machine Design Engineers

700 S Industrial Way
Seattle, WA 98108
   (206) 762-5454
   N/A
   N/A
Multiple Locations:   
Congressional District:   09
County:   

Phase I

Phase I year
1985
Phase I Amount
$48,857
The need exists for an advancement in explosive excavation methods to improve the existing cyclic process. Phase I of this project will prove feasibility of an innovative explosives excavation system which will combine the automation of tunnel boring machines with the low energy and flexibility of explosives. The system will include a continuous, concurrent cycle of drilling loading, blasting and muck removal. The phase I work includes an innovative solution to the problem of explosive detonation in automated systems. The crosssection and direction of the tunnel or shaft will be variable. The system will be especially suited to the low mechanical power needs of a deep base. The phase I work will include analytic and design research and a field demonstration of the explosive technique.

Phase II

Phase II year
1986 (last award dollars: 1986)
Phase II Amount
$494,000
The need exists for an advancement in explosive excavation methods to improve the existing cyclic process. Phase II of this project will develop the components of an innovative explosives excavation system which will combine the automation of tunnel boring machines with the low energy and flexibility of explosives. The system will include a continuous, concurrent cycle of drilling, loading, blasting and muck removal. The phase I work included demonstration of an innovative solution to the problem of explosive detonation in automated systems. The cross-section and director of the tunnel or shaft will be varible. The system will be especially suited to the low mechanical power needs of a deep base. The phase II work will include development of prototype components, refinement of the selected explosives, field and laboratory blasting tests, hole pattern validation tests and the design and layout of a machine to perform the automated drill and blast operation.