Sec­ond tun­nel bor­ing ma­chine for Metro ar­rives

The Free Press Journal - - MUMBAI/ESTATE -

MUM­BAI: The sec­ond tun­nel bor­ing ma­chine (TBM) for con­struc­tion of the Metro III (Co­laba-Ban­draSEEPZ) line has ar­rived. The Mum­bai Metro Rail Cor­po­ra­tion (MMRC) will lower the TBM in mid-Oc­to­ber at the launch­ing shaft at Azad Maidan, which is part of the pack­age 2.

The TBM, pro­cured from Aus­tralian ma­jor Ter­rat­ech Pri­vate Ltd, from its man­u­fac­tur­ing fa­cil­ity in Guangzhou at China, weighs 817 tonnes with a di­am­e­ter of 6.68 me­tres.

De­vel­oped to re­ceive two types of re­moval equip­ment, a belt con­veyor and a screw con­veyor, this hard rock type de­vice will be used to con­struct tun­nels with cir­cu­lar cross sec­tion. The dif­fer­ent part of ma­chines will be as­sem­bled in a pe­riod of 45 days.

“This TBM will al­low soft, wet, hard or un­sta­ble ground to be tun­nelled with speed and safe con­struc­tion,” said Ash­wini Bhide, Man­ag­ing Di­rec­tor of MMRC. “For safe con­struc­tion and re­duc­ing the im­pact on the sur­round­ing en­vi­ron­ments, we are us­ing a tech­nol­ogy that will be ap­plied by im­ple­ment­ing a real-time mon­i­tor­ing and safety eval­u­a­tion sys­tem to track the process dur­ing ex­ca­va­tion.”

The ma­chine will be used to con­struct a 4 km tun­nel be­tween CST sta­tion up to Mum­bai Cen­tral metro sta­tion in­clud­ing Kal­badevi, Gir­gaon and Grant road sta­tions. –Staff Re­porter

Newspapers in English

Newspapers from India

© PressReader. All rights reserved.