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List of products by author: V. Poon
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Large span mined tunnels in soft ground: support design, instrumentation and observational approach
Abstract: The northern 200m of the Liantang Lung Shan highway tunnels in Hong Kong comprises large span mined tunnels excavated through poor ground with low cover. Conventional staged tunnel excavation techniques, with heading (160m) and bench (115m), was adopted. An instrumented observational approach was developed to verify an optimised temporary support system for these challenging ground conditions....
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