SBIR/STTR Research Award

SUBSCALE TESTING OF ROCKBOLTED TUNNELS IN JOINTED MEDIA

Award identifier 37934c770ffbdd014c2a271c5d2eb5ab74cedee36074f7c042ef2cf8dcbaa6f9Awarding agency Department of Defense · Defense Threat Reduction Agency

Award amount

$67,500

Program and phase

SBIR · Phase I

Award year

1988

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Award details

Awarding agency
Department of Defense
Branch
Defense Threat Reduction Agency
Recipient company
Applied Research Associates, Inc.
Proposal award date
Not reported
Contract end date
Not reported
UEI
LTMGBJ76B9D8
Solicitation number
Not reported
Topic code
Not reported

Research abstract

DEVELOPMENT OF AN INNOVATIVE AND ECONOMICAL EXPERIMENTAL METHOD IS PROPOSED WHICH CAN PROVIDE THE BASIC BEHAVIOR DATA NECESSARY TO MEET THE DNA OBJECTIVE OF PROVIDING ADEQUATE ANALYSIS, DESIGN AND ASSESSMENT METHODS FOR MINIMALLY HARDENED TUNNELS. THIS DEVELOPMENT IS ACCOMPANIED BY ANALYSIS CAPABLE OF REPRESENTING THE COMPLEX INELASTIC MATERIAL BEHAVIOR OF THE ROCK MASS AND OF REPRESENTING SIMPLE JOINT AND ROCKBOLT CONFIGURATIONS. THIS COMBINED EXPERIMENTAL AND ANALYTICAL APPROACH ALLOWS THE DEVELOPMENT AND EVALUATION OF BASIC MODELING PROCEDURES AND PARAMETERS WHICH CAN BE LATER INCORPORATED INTO A NUMERICAL PROCEDURE SUCH AS AN ADVANCED DISCRETE ELEMENT CODE, CAPABLE OF REPRESENTING THE NONLINEAR RESPONSE OF COMPLEX TUNNEL, JOINT AND BOLT CONFIGURATIONS. THIS STUDY CAN ALSO PROVIDE IMPORTANT GUIDANCE TO THE LATER DEVELOPMENT OF SIMPLIFIED ASSESSMENT AND DESIGN METHODS REFLECTING THE MAJOR RESPONSE MECHANISMS OF ROCKBOLTED TUNNELS IN JOINTED ROCK. THE PROPOSED EXPERIMENTAL PROCEDURE WILL BE AVAILABLE TO SUPPORT THE RECOMMENDATIONS OF THE EXPERIMENTAL REVIEW AND REQUIREMENTS STUDY NOW UNDERWAY AT DNA.

Technology keywords

Not reported

Other awards by this recipient

Verified by the same UEI. These are other public SBIR/STTR award pages, not a merged company record.

Contractor profile

APPLIED RESEARCH ASSOCIATES, INC.

Historical federal award activity, when published, is on that contractor profile. Matched by UEI only.

Agency intelligence

Department of Defense

NAICS intelligence

This classification comes from the contractor profile, not from the SBIR award record.

Contractor industry classification NAICS 518210

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