Analysis of shield tunnel response to bilateral pit excavation with a focus on perimeter pressure and deformation mechanisms | Scientific Reports

Analysis of shield tunnel response to bilateral pit excavation with a focus on perimeter pressure and deformation mechanisms | Scientific Reports

Stunning Eryri valley with tunnels, pits and rope swings across unbelievably beautiful pools

Stunning Eryri valley with tunnels, pits and rope swings across unbelievably beautiful pools

Scientists discover fascinating tunnel on the moon

Scientists discover fascinating tunnel on the moon