The geological condition in the inlet of spillway tunnel of Hengquan Reservoir is very complex,rock wheathering is severe and the stability of adjoining rock of tunnel is bad.
The rheological mathematical model of radial displacement and its velocity are presented to study the stability of adjoining rocks.
The mineral-bodies of the two mineral deposits are mainly existed in the contacting zone of granite-porphyry and adjoining rock.
The study on adjoining rock stability and support pattern of deep-lying tunnel
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