Keywords: A40
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Journal Articles
Proceedings of the Institution of Civil Engineers (1970) 47 (1): 25–42.
Published: 01 September 1970
... CAST CONCRETE A40 EXCAVATING CARRIAGEWAYS SOLUTIONS SOFT ROOFS STABILITY SHIELDS DIAMETER IN SITU LININGS TUNNELLING GROUND MARL MONMOUTH WALES UK Elevation of South Portal . ~ .. .:I .~ , ,. ~ 7292 Construction of the Monmouth Tunnels in soft rock R. R. PARRY. MIMachE' G...

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