Understanding the complete stress-strain behavior of shotcrete is extremely important in ground support design; especially in cases where large deformations are expected such as around mine excavations at great depth. The application of non-linear numerical modeling to mining industry problems has increased in recent years. More realistic stress-strain response and failure criteria in complex plasticity models are also being used in the design of the larger, deeper mines. One of the factors to improve the reliability of numerical modeling is to properly define geotechnical parameters for both the rock mass and shotcrete surface support. Uniaxial and triaxial compression tests on steel fibre reinforced shotcrete (SFRS) have been used to quantify elastic-plastic response behaviour for both the peak and post-peak regions. The laboratory tests were conducted with a servo-controlled testing machine to obtain complete stress-strain curves. The test results include unconfined and triaxial compressive strength, shear strength and tensile strength together with the elastic and plastic mechanical properties of SFRS. A method is also suggested for obtaining the plasticity parameters for non-linear modeling of SFRS.

x-ray tomographie of steel fibre reinforced shotcrete (sfrs)

early-age re-entry under fresh fibre reinforced shotcrete

design of fibre reinforced shotcrete linings with macro-synthetic fibres

coupling for shafts with reinforced elastic elements and process thereof

natural-fibre-reinforced composites

innovative processing of fibre reinforced plastics (frp)

a novel process for the production of agglomerate for fibre-reinforced plastics

transient suppression by filtered self phase modulation in a non-linear fibre

new fibre-reinforced composite for cranio-maxillofacial (cmf) and for next generation dental implants

high-quality resin injection process for manufacturing of fibre-reinforced composites