ICGCM Papers:
New Ground Control Product Developments
 
 
Fiber Reinforced Polymer Rockbolts for Ground Control in a Strong Jointed Rock Mass
33rd International Conference on Ground Control in Mining
Fiber Reinforced Polymer Rockbolts for Ground Control in a Strong Jointed Rock Mass
by
Samrat Mohanty, Agapito Associates, Inc., Grand Junction, United StatesTom VAndergrift, Agapito Associates, Inc., Golden, United StatesGan Chin Hwi, Parsons Brinckerhoff Pte., Ltd., Singapore, United StatesTimothy Ross, Agapito Associates, Inc., Golden, United StatesMee Nee Lee, Parsons Brinckerhoff Pte., Ltd., Singapore, Germany
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[Conference] 33rd International Conference on Ground Control in Mining
[Price] Free  [Comments] 0
[Topical Area] New Ground Control Product Developments
[Author] Samrat Mohanty, Agapito Associates, Inc., Grand Junction, United StatesTom VAndergrift, Agapito Associates, Inc., Golden, United StatesGan Chin Hwi, Parsons Brinckerhoff Pte., Ltd., Singapore, United StatesTimothy Ross, Agapito Associates, Inc., Golden, United StatesMee Nee Lee, Parsons Brinckerhoff Pte., Ltd., Singapore, Germany
[Abstract] 
Key Conclusions:
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FRP bolts have performed exceptionally well, and no ground failures have been experienced in FRP bolted ground during the current construction period, which to date is in excess of 5 years.
Key Findings:
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FRP bolting systems have adequate support capabilities compared with steel bolts, and are much easier to handle, considering the lengths required (up to 5m) and bench heights (9m) prevalent on the subject project. Corrosion resistance is superior to steel bolts, which is important given the 50 year design life.
Objective of the Paper:
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Discuss numerical modeling comparisons of steel and FRP bolts, and field performance of FRP bolts for large underground openings in strong jointed rock.
Problem Statement:
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Fiber reinforced polymer (FRP) rockbolt systems have advantages over steel bolts in corrosion resistance, weight and handling considerations, and local acceptance in Asia, however they need to be evaluated and compared to steel bolts with regard to performance in a strong, jointed rock mass.