00696naa#a2200181#i#450# EN\\bibl\126798 20260701141657.3 1815-588X 20260630b2026####ek#y0engy0150####ca RU Stress-Strain State of the Tunnel Chamber After Renovation of the Ventilation Shaft Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2026 10 с. Journal article local Напряжения в конструктивных элементах. 624.042.12 Sokornov Anton Aleksandrovich Kon'kov Aleksandr Nikolaevich itt-pgups.ru