Metro Tunneling Group or MTG (formerly IMCC-JV) is a

Joint Venture A joint venture (JV) is a business entity created by two or more parties, generally characterized by shared ownership, shared returns and risks, and shared governance. Companies typically pursue joint ventures for one of four reasons: to acce ...

(JV) of 5 companies currently working as the main contractor for the

Delhi Metro Rail Corporation Delhi Metro Rail Corporation Limited (DMRC) is a centre-state joint venture that operates the Delhi Metro. The DMRC is also involved in the planning and implementation of metro rail, monorail, and high-speed rail projects in India and abroad. T ...

(DMRC). The 5 companies are DYWIDAG Systems from Germany,

Larsen & Toubro Larsen & Toubro Ltd, commonly known as L&T, is an Indian multinational conglomerate company, with business interests in engineering, construction, manufacturing, technology, information technology and financial services, headquartered in Mumb ...

from India, Samsung Corporation from South Korea,

Ircon International Ircon International, or Indian Railway Construction Limited (IRCON), is an Indian engineering & construction corporation, specialized in transport infrastructure. The public sector undertaking was established in 1976, by the Indian Railways und ...

from India, and

Shimizu Corporation is an architectural, civil engineering and general contracting firm. It has annual sales of approximately US$15 billion and has been widely recognized as one of the top 5 contractors in Japan and among the top 20 in the world. It is a family bu ...

from Japan. DMRC is the joint venture of

Government of India The Government of India ( ISO: ; often abbreviated as GoI), known as the Union Government or Central Government but often simply as the Centre, is the national government of the Republic of India, a federal democracy located in South Asia, ...

and

Government of Delhi The Government of Delhi, officially the Government of the National Capital Territory of Delhi (GNCTD) is the governing body of the Union Territory of Delhi, whose urban area is the seat of the Government of India. It also governs the city or l ...

. On 19 December 2006, the international joint venture - Metro Tunneling Group received the Letter of Acceptance from Delhi Metro Rail Corporation for the Contract BC18. The scope of work for the new contract includes the design and civil works for a 3.1 km long metro twin tunnel and two underground metro stations. Within the construction period of 36 month the tunnel will be built by Shield TBM whereas the stations will be constructed using the cut and cover method.

IMCC-JV

MTG previously known as IMCC (International Metro Civil Contractors). In April 2001 the international joint venture "International Metro Civil Contractors" (IMCC) was awarded the contract for the design and construction of an approx. 6.5 km long underground section underneath the centre of Old and New Delhi. The joint venture under the leadership of DYWIDAG International GmbH (Germany), together with Larsen & Toubro (India), Samsung Corporation (Korea), IRCON International (India) and Shimizu Corporation (Japan), who successfully completed the turn-key contract MC-1B for a 6.5 km metro twin tunnel system and 6 metro stations of the extension of the Metro Delhi in June 2005, 8 months ahead of the originally scheduled termination date. During the Phase-I of the Delhi Metro, the JV has completed the Rs 1,940-crore plan of underground Metro Rail Corridor (6 stations) from

Chandni Chowk The Chandni Chowk, also known as Moonlight Square is one of the oldest and busiest markets in Old Delhi, India. It is located close to the Old Delhi Railway Station. The Red Fort monument is located at the eastern end of Chandni Chowk. It was ...

to Central Secretariat including tunnel between Chandni Chowk and Kashmere Gate. The scope of work of this US$380 m contract consists of a twin tunnel system including six underground stations, of which five are open-cut stations and one station in tunnel using New Austrian Tunneling method (

NATM The New Austrian tunneling method (NATM), also known as the sequential excavation method (SEM) or sprayed concrete lining method (SCL), is a method of modern tunnel design and construction employing sophisticated monitoring to optimize various w ...

). To complete the seven km bored tunnel sections between stations, the joint venture has bought three Herrenknecht

tunnel boring machine A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They may also be used for microtunneling. They can be designed to bore throu ...

s – two earth pressure balance machines (EPBM) and one hard rock shield machine. The first machine was launched in March 2002. Whilst most of the project lies in the Delhi Silts, the section in the area of Old Delhi is situated in the bedrock, which rises up to almost ground level. Because of these ground conditions and the extremely congested locality, the 300 m long Chawri Bazar Station in the centre of Old Delhi cannot be constructed by open-cut, but must be excavated exclusively using the

. This is done from an access shaft, 25 x 40 m, with four NATM drives, with a diameter of 10 m each. All are progressing simultaneously parallel to the works for the shaft building, using both hydraulic excavators and smooth blasting techniques. During the entire tunneling activities ground movements have been documented and controlled using an extensive monitoring programme installed both inside the tunnels and above ground. A large number of specialized instruments have been installed to monitor ground movements and strains in the surrounding structures. In addition to civil and structural works the design-build contract also includes station air conditioning, tunnel ventilation, station E&M services, lighting, station finishes and landscaping. ''Source: DYWIDAG International GmbH'

Current project

The Company is currently executing the Metro Project from Green Park to Saket ''(Phase II) - BC 18''. ''TBM Main Drive'': # Malviya Nagar Station to Hauz Khas Station - 1454 M # Hauz Khas Station to Green Park - 983 M # Malviya Nagar to Saket - 716 M Total length of tunnel section is 3.14 km.

References

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External links

DMRC official site
Construction and civil engineering companies of India Delhi Metro Indian companies established in 2006 Construction and civil engineering companies established in 2006