Mining3 and the University of Southern Queensland – with support from the Australian Coal Industry’s Research Program – have collaborated to develop a next-generation carbon fibre composite rock bolt.
This development aims to replace traditional steel and fibreglass rock bolts, and is set to offer improved performance and cost-effectiveness in mining and tunnelling engineering.
Rock bolts play a critical role in underground excavation and reinforcing jointed rock mass and, with the global rock bolt market valued at $70 billion in 2023, the demand for a superior alternative to steel and fibreglass composites is growing.
Leading the research team in rock bolt mechanics and supporting Mining3 in the mechanical characterisation of carbon fibre composite rock bolt is Centre for Future Materials (CFM) Associate Professor Ali Mirzaghorbanali.
“Steel rock bolts are heavy and prone to corrosion, while fibreglass composite rock bolts have limited capacity ratings and can be bulky in diameter,” Prof Mirzaghorbanali said.
“The introduction of lightweight and compact rock bolts is expected to significantly reduce drilling and installation costs in extreme mining and tunnelling environments.”
Mining3’s carbon fibre composite rock bolts are the result of patented design innovation.
To expedite market introduction, researchers from the University of Southern Queensland’s CFM use its state-of-the-art industrial-scale robotic double-ring braiding machine, automating the manufacturing process.
The plan includes integrating the braiding machine with an industrial pultrusion line to demonstrate a fully automated, cost-effective rock bolt manufacturing process.
This technology has generated interest from mining and tunnelling industries.
Mining3 CEO, Jacqui Coombes, said the company is thrilled to collaborate with the University of Southern Queensland on this innovative project.
“The development of carbon fibre composite rock bolts has the potential to revolutionise the mining industry by providing a lightweight, high-capacity, and corrosion-resistant solution,” Ms Coombes said.
“This partnership represents a significant step towards enhancing safety and productivity in underground operations.”
Through the introduction of carbon fibre composite rock bolts, Mining3 and the University of Southern Queensland aim to redefine industry standards, ensuring a more sustainable and efficient future for mining and tunnelling applications.
Featured image: Dr Mazhar Peerzada working with the T4L dual-ring braider used in this research and design program allowing for industrial scale proof of concepts. Image credit: University of Southern Queensland.
