The geohazard of rockfall affecting road networks is of considerable interest to highway engineers working in mountainous terrain. Some of the principal measures to protect against rockfall involve rockfall checkfences, barrier fences, heavy-duty mesh netting, rockfall catch areas, sprayed fibre concrete (fibrecrete), and modifications to drainage systems including channel training works. TRI is very active in testing these unique products and has worked specifically with the Association of Geohazard Professionals (AGHP) to refine testing procedures. Punch or puncture testing helps to index the restraining capacity of mesh products. Tensile and punch testing assist in indexing these important class of rockfall prevention materials.

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