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Nathani Chandni Raj

CT3000

Ahmedabad UG Metro-Segment Casting & TBM Main Drive

The project training was done at Ahmedabad underground metro project-UG-02 under the awardee contractor L&T. The underground station by top-down methodology and tunnel construction by EPB-TBM both were covered under this. At station all the 3 structural components namely Pile, Diaphragm wall and Slab was covered. This portfolio contains details about the casting of tunnel lining segments at kathwada casting yard and also tunnelling and ring building between kalupur launching shaft and Gheekanta station by Earth pressure balance tunnel boring machine. For each activity detailed construction methodology, procedure, quantities, resources, time cycle, costing, productivity, equipment mobilization & cost were studied.  


Report Content

Segment Mould

Casting of segment procedure

Casting of segment cage tying procedure

Casting of segment procedure

TBM Launching shaft plan and Section (Kalupur)

Mining by earth pressure balance tunnel boring machine

Main drive procedure as a whole,ring transportation, stacking and preparation for erection

Ring erection and grouting

Segment casting analysis glimpse

Tunneling main drive time analysis