1.0Robbinshttps://www.robbinstbm.com/ru/Robust Robbins EPB Completes Third Bore for Chennai Metro Project - Robbinsrich600338<blockquote class="wp-embedded-content" data-secret="i7FnbOwZgE"><a href="https://www.robbinstbm.com/ru/chennai-metro-epb-3rd-bore/">Robust Robbins EPB Completes Third Bore for Chennai Metro Project</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.robbinstbm.com/ru/chennai-metro-epb-3rd-bore/embed/#?secret=i7FnbOwZgE" width="600" height="338" title="“Robust Robbins EPB Completes Third Bore for Chennai Metro Project” — Robbins" data-secret="i7FnbOwZgE" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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https://www.robbinstbm.com/wp-content/uploads/2017/11/Image-3-RGB.jpg29101812On Tuesday, October 31, 2017, a 6.65 m (21.8 ft) diameter Robbins EPB TBM broke through at Chennai Metro, making this the third tunnel the machine has bored for the project and for contractor Afcons Infrastructure Ltd. The robust machine achieved good advance rates in mixed ground of 80 mm (3 in) per minute.