Herrenknecht Rolls out TBM S-1073 for Mumbai Metro’s Line-3

Herrenknecht AG – a German tunnel boring machine (TBM) manufacturer just rolled out TBM S-1073 – the 1st TBM for Mumbai Metro’s 33 km Line-3’s UGC-04 package from their Chinese facility in Guangzhou.

The CEC-ITD Cem-TPL JV will deploy this earth pressure balance (EPB) TBM along with two others (S-1074, S-1075) to construct the line’s 6.081 km twin tunnels from Worli to Dharavi through TBM launch shafts located at Naya Nagar in Mahim and Siddhivinayak. Three months ago, they began casting segments at their yard in Wadala which will later be fed & erected by these TBMs to form the tunnels’ rings.

CEC-ITD CEM-TPL JV’s engineers are currently in Guangzhou witnessing factory acceptance tests (FAT), and from the details available at this time, the TBM is planned to arrive in Mumbai towards the end of August 2017 and is tentatively scheduled to start tunneling works on October 23.

Mumbai Metro Line-3’s map – view Mumbai Metro info & map

Backup gantry

Next in line is TBM S-1074. Here are some snaps of it shields and cutterhead. After FAT, this TBM is expected to arrive in the city in the last week of September.

The 5 contractors on the 7 civil packages of Line-3 plan to deploy a total of 17 TBMs from different manufacturers such as Robbins, Terratec, Herrenknecht and STEC. A majority of them will be new while some, like this Terratec machine for UGC-05 & UGC-06, are currently being refurbished after having completed tunnels for Delhi Metro’s Phase 3 project.

For more updates, check out the Mumbai section of The Metro Rail Guy!


written by

Global traveler who prefers mass rapid transit

6 Responses to "Herrenknecht Rolls out TBM S-1073 for Mumbai Metro’s Line-3"

  1. ali says:

    When it will reach mumbai.

  2. Aishwarye says:

    TMRG, I heard a lot of stories about lucknow metro recently like :
    – The second TBM is also just 38 meters away from the Hazratganj shaft and they are planning to make a breakthrough for both of them from 20th of June.
    – The 5th Alstom train is already on its way to Lucknow and will be there before 21st June( the tentative launch date) though will not be used straight way but will start going through testing.
    Are these just stories or are they true?

    • TMRG says:

      1) S53 is indeed 38m away. 1st breakthrough just took place in a non-traditional manner – see this post for more info on both.
      2) I’ll have to verify that

      • Aishwarye says:

        Saw some newspaper articles stating that the 5th Alstom Metro Rake will be entering the Lucknow Metro Depot on 20th.

  3. Dleep Thakur says:

    Is their any vacancies for mechanical engineer having 5 year experience in Herreknecht TBM 3500XH


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