Research and practice on geostress of deep buried tunnels in western China
The high stress rock burst and large deformation disas-ters caused by deep buried tunnels have become important influ-encing factors that restrict underground engineering construction.Therefore,conducting research on geostress,understanding the mechanism of deep rock mass failure,and corresponding preven-tion and control measures have practical significance for the de-sign and construction of deep buried tunnels.Based on the high ground stress test results of the Xi'an Blue to Li Water Diversion Project,combined with the analysis and research of the failure mode of deep rock mass during construction,corresponding pre-vention and control measures are proposed,which can provide ex-perience and guidance for the survey,design and construction of similar projects.
tunnelhigh ground stressdestruction typerock burstsplitting and peelingstructural relaxation failureplastic de-formationprevention and control measures
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