Analysis of the TBM Excavation Parameters for Drainage Gallery in Luoning Pumped Storage Power Station
TBM excavation parameters that are suitable for the surrounding rock types can effectively improve its excava-tion efficiency.Based on the excavation project of the drainage gallery in Luoning Pumped Storage Power Station,the variation of the TBM construction parameters with time is statistically analyzed.Then,regression analysis method is a-dopted to explore the correlation between the surrounding rock types and the excavation parameters.By comparing the geological conditions revealed during the on-site excavation,it is shown that the TBM excavation parameters are of strong correlations with the surrounding rock characteristics.Thus,suitable TBM excavation parameters for the surrounding rock types can be determined based on the correlations.
pumped storage power stationdrainage galleryTBMexcavation parametersclassification of surrounding rocks
万方数据
维普
