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Zhao G.,HydroChina Beijing Engineering Corporation | Zhao G.,Hebei Fengning Pumped Storage Co. | Qi J.,HydroChina Beijing Engineering Corporation | Qi J.,Hebei Fengning Pumped Storage Co. | And 4 more authors.
Modern Tunnelling Technology

The underground powerhouse of the Zhangjiahe pumped-storage power station, which is a typical underground carven with large-span and high side wall, is located in the area of complex geological conditions. In order to predict the stability of surrounding rock of underground powerhouse and the rationality of support parameters, it is to understand the law of surrounding rock displacement and stress distribution by analyzing the data of surrounding rock displacement, stress and strain obtained in a model testing cavity. With a back analysis of observational data, the rationality of mechanical parameters of rock mass is further validated. ©, 2015, Editorial Office of "Modern Tunnelling Technology". All right reserved. Source

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