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Design of large underground caverns r^FhTzA=1 for hydroelectric projects with *5%d XixN particular reference to structurally =Je[c,&j$? controlled failure mechanisms K@I D/]PF R.D. Hammett and E. Hoek `o=q%$f#k~ Paper presented at ASCE Spring Convention, New York +x0!*3q Session on Rock Mechanics of Large Hydro Projects {1UQ/_ May 12, 1981
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