Glass-Fiber Reinforced Polymer (GFRP) Rock-bolts used as reinforcement in single-shell mined tunnels & caverns

Synopsis:

Mined caverns are becoming increasingly popular underground structures, and particularly in Hong Kong. They offer a unique solution to space constraints, especially in dense urban environments. In large excavations, and when permitted by the rock mass, permanent rock-bolts combined with sprayed concrete are logical alternatives to concrete lining. On the heels of the successful trial of the Jurong Rock Caverns in Singapore (2012-2014), several caverns are now being constructed using GFRP rock-bolts as rock-reinforcement. The performance characteristics of these rock-bolts, namely regarding tensile & shear resistance, durability in saline and alkali environments and environmental impact, have since been published in a number of studies. In this seminar, we will discuss the characteristics of GFRP rock-bolts, the advantages & disadvantages compared to conventional techniques and the applications supplied by Dextra on three existing projects.

About the Speaker:

Pierre graduated with a Master of Engineering from “Ecole Centrale de Lille” and…