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List of products by author: W. G. Qiu
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A case study on construction method of four-line tunnel in weak rock
Abstract: In China, there is a railway station extended into a tunnel with 547m, which located in secondary line from Liupanshui to Zhanyi. So a large span tunnel with four lines formed. Its largest excavation span reaches 28.42m, and the maximum cross-section area is 354.30m. This paper took this case studied. It is suggested to divide the tunnel to three sections as portal section, shallow buried...
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Influence about the stiffness ratio of the double-shell lining to the dynamic response of tunnel structure under...
Abstract: This paper mainly focused on analyzing the influence of relative stiffness ratio to the dynamic response of tunnel structure. The relative stiffness ratio is the one between primary support and secondary lining. The numerical model of a two-line highway tunnel with variable stiffness ratio is obtained by applying ABAQUS. By analyzing the relative displacement, the maximum principle stress and...
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Study of surrounding rock classification of underground cavern based on mathematical statistics and drifting...
Abstract: Nine indicators were selected as evaluation factors for classifying surrounding rock by contrast analysis. Sample set was generated by monte carlo simulation with the assumption of evaluation factor’s independent distribution. Sample evaluation matrix was constructed by the linear type of uncertainty measurement theory. Sample weight was established dynamically by drifting degree theory,...
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