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《Journal of Wuhan University of Hydraulic and Electric Engineering》 1990-01
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A Study on the Stability of Surge Shaft Surrounding Rock of a Certain Hydropower Station

Yang Shuqing  
Based on the results of our experimental researches, this paper analyzed the strain redistribution of surround rock after excavation of surge shaft, the effects of different types of surrounding rock consolidation, the influence of the upper chamber excavation on the strain distribution of surge shaft. and the failure mechanism at loosing stability of surrounding rock.
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