TBM technology taking up the challenges of steep gradients

The market dynamics in tunnelling are driven by the globalized world and increasing urbanization. Pressing issues these days include climate change, CO₂footprint, sustainable development and a spirit of corporate social responsibility. Hydropower for example can deliver a range of benefits to society and the environment. Power-related benefits include clean and flexible generation and storage, in addition to reduced dependence on fossil fuels and avoiding pollution. The focus of this publication is on the TBM tunnelling technology in use for Australia’s largest-ever hydroelectric project, Snowy 2.0 with challenges such as steep gradients, long tunnel drives and hazardous conditions.