Experience in providing the stability of tunnel face and roof during its drivage in proterozoic clays
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- Deputy Head of Board on Capital Construction The Saint-Petersburg Metro
Abstract
Methodology for assessment of state of advance support of face with fiberglass anchors and the working¢s roof – with tube anchors, is given. The results of in-situ experimental observations for efforts in anchors, displacements of excavation and growth of load on the advance supports in its roof are shown.
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