07-2 0709170203 2014- 1 - 2 - 3 - 4 -3(1)123 4 521 2 3 4 53- 5 -a a.1 1abc2/3 -;96m14.7 km 37.75601720202050, - new austrian tunnelling method natm , - (l. v. rabcew icz) 50 , -, -, 60 , natm , ,natm -15 - 12-320041575m200503011100m(2)21.5m2.3m2.2m30cm32.2m430cm5449.7cm5128cm3150mm150mm6mm4hpb2358mm20cm25cm2cm54cm6123