The Coupling Support Technology for Y Style Large Span Intersection in Deep Soft Rock Roadway

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Abstract:

Because of crossing point’s large span, stress concentration clearly, result in parts of the intersection of poor support, construction and maintenance difficult, especially Y-Intersection is more serious part of deformation and failure. Through situ investigation and theoretical research, summarize the typical failure modes of the deep large Y-intersection, analyze the main reasons for destruction of the crossing point that is both sides of Bovine unconstrained and supported respectively. The new coupling supporting design—bolt-mesh-cable + truss to control the top of crossing point , while the key technology of the double control bolt is used to control the Crossing point.—is proposed.

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Periodical:

Advanced Materials Research (Volumes 199-200)

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1773-1776

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Online since:

February 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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DOI: 10.1088/1674-1056/18/7/053

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