Project to link the Bhima and Sina rivers under way by B T Patil & Sons from two portals 20 km apart and five shafts using conventional drill/blast in basalt. Section 7 m-wide and 6.7 m-high to crowned roof. Progress averaging 1 km/month with 7 km completed to Sept 1998. Completion scheduled for end-Nov 2000. Indian record set for drill/blast in July with 173 m achieved on one face. Nov 1998.   Some 10.5 km excavated to March, 1999 averaging 1 km/month off 12 faces, with a best month of 1,183 m. More information fax Mr Kulkarni +91 831 22121. Sept 1999.  Contractor employing 650 drillers using 150 handheld Atlas Copco RH 656-4W pneumatic rockdrills mounted on BMK 62S jacklegs working off twelve faces using two-deck platforms with five drillers at floor level and two on each deck. Major muckshifting operation involving 2.5 million t hoisted by twin 15 t, 150 hp drums on gantry cranes at each shaft. Blasting pattern is double wedge with 106 x 3.6 m holes. Drilling takes 3.5 h and charge comprises special gelatine with primer at back of hole and packaged ANFO stemmed with 1.2 m of wet clay. Contractor will employ most of its labour force on an upcoming contract for a 9 km tunnel, but is actively seeking overseas work involving handheld equipment. More information from patsonbt@blr.vsnl.net.in October 1999.

  First phase of proposed 55.3 km 3-line network involves 11 km of underground railway between Delhi University and the Central Secretariat near Parliament House using TBMs. Completion 2007. General consultants: joint venture led by Pacific Consultants International (Japan) and including Jarts and Rites. Client: Delhi Metro Rail Corporation. September 1998.   Fifteen consortia, each associated with one or more local companies, have been shortlisted for construction of the 11 km-long underground section. The rest of the network will consist of 44.3 km of elevated and surface lines from Shadara to Nangloi and Subzimandi to Holambikalan. The US$690 million underground contract will be let as two separate packages: design and construction of the 4 km-long section from Delhi University station to the south end of the Inter-State Bus Terminal (ISBT); and design and construction of the 7 km-long section from ISBT to Central Secretariat. Among the shortlisted bidders for one or both packages are: Impregilo (Italy), Nesco (Spain), with Gammon (India); Kumagai Gumi (Japan), Skanska (Sweden), with Hindustan Construction (India) and Itochu (Japan); Dyckerhoff & Widmann (Germany), Shimizu (Japan), and Larsen & Toubro (India); Samsung (South Korea), with Ircon International (India); and Hyundai (South Korea), with Jai Prakash (India). Total cost of the metro project is now expected to be more than US$1.8 billion on completion. January 2000. Line 1 will run 11 km underground from Delhi University at Vishwavidyalaya in the north to Central Secretariat in the south, serving 10 stations. Line 2, the first 25 km surface/elevated route, will link Shahdara in the east to Nangloi in the west via Subzimandi and Tri Nagar. Line 3 was intended to run 19.3 km from Subzimandi to Holambi Kalan, but as this parallels an existing Indian Railways (IR) line, the government is considering whether to build a 16-km route from Tri Nagar to Barwala instead. Tenders are currently being evaluated for construction of Line 1 (underground), and the winning contractors should be announced later this year. Firms shortlisted for the project include Kumagai Gumi, Kajima Corp. and Obayashi of Japan, Skanska AB of Sweden, and Dywidag of Germany. With a water table only 1.5 m below ground level, underground construction will be challenging. From Vishwavidyalaya to New Delhi the ground is a mix of soft soil and quartzitic rock varying from sound to highly weathered. Between New Delhi and Central Secretariat the soft soil is mixed with silt, clay and sand. Construction will be split into two sections, north and south of ISBT. Nine of the stations will be built by cut-and-cover, except Chwari Bazar, which will be NATM. The running tunnels will be bored by EPBs. The northern half of the route, from Vishwavidyalaya to ISBT, is due to open in March, 2004 and the southern section in March, 2005. To help with project management, DMRC has brought in a number of general consultants, including PCI, Tonichi and JARTS of Japan, Parsons Brinckerhoff International of the USA, and RITES (Rail India Technical & Economic Services) of India. Visit www.pbworld.com Sept 2000. Award of turnkey design/construct contract for 7 km-long underground section between ISBT station and Central Secretariat to Larsen & Toubro, in jv with Dyckerhoff & Widmann, Samsung, Shimizu and Ircon, value Rs 16.50 billion, duration 59 months, funded by JBIC for Delhi Metro Rail Corporation, 40% in dollars, 60% rupees. Visit www.dywidag.de 13/01. Work has commenced on the underground section of the Delhi metro rail project between Thei University and Central Secretariat. This 11 km-long line will have ten sections. The stations are to be located 12.85 m-deep. Visit www.delhimetrorail.com 44/01. Delhi Metro Rail Corporation has included the Dwarka-Connaught Place stretch in its first phase. The 23.5 km-long stretch will have 1.5 km underground, 19.7 km elevated and 2.3 km at grade with 20 stations. The Connaught Place-West Patel Nagar and West Patel Nagar-Dwarka stretches should both be commissioned by September, 2005. Visit www.delhimetrorail.com 45/01. The Delhi Metro Rail Corporation (DMRC) will be using mechanised tunnelling for constructing 4 km of Line 1 in the extremely congested areas near Chawri Bazaar, New Delhi railway station, Connaught Place and in the stretch between Delhi University and Central Secretariat. Three large TBMs capable of boring a 6.8 m-diameter tunnel will be used. Lining will consist of precast concrete segments. The DMRC has constructed a segment casting plant at Nangloi and the moulds have been fabricated in France. Visit www.delhimetrorail.com 26/02.Prequalification for the design, manufacture, supply, installation, testing and commissioning of tunnel ventilation and environmental control system at Barakhamba Road underground station for Line 3, section Barakhamba Road-Connaught Place-Dwarka. Deadline 21st February, 2003. Tender value: US$1 million. Contact Delhi Metro Rail Corporation, NBCC Place, 3rd floor, Brishma Pithama Marg, Pragati Vihar, New Delhi 110003. Visit www.delhimetrorail.comIndvent Fans Pvt Ltd wishes to form a consortium or enter a JV with individuals, firms, limited companies who have carried out any similar works of US$1 million in the last five years. Contact Sushil K. Pachisia, e-mail pachisia@nde.vsnl.net.in and skpndin@vsnl.com. Visit www.indventfans.com 06/03.Metro Tunnelling Group, an international joint venture of Strabag's affiliate Dywidag International, Samsung, Larsen & Toubro, IRCON International, and Shimizu, received a letter of acceptance from Delhi Metro Rail Corporation for contract BC18. The scope of work for the new EUR83 million contract includes the design and civil works for a 2.7 km-long tunnel and two underground stations. Within the construction period of 36 months, the tunnel will be built by shield TBM whereas the stations will be constructed using the cut-and-cover method. Visit www.dywidag-international.com, www.larsentoubro.com and www.irconinternational.com 04/07.Prequalification notice (No. DMRC/20/II-98/2006), deadline 6th February, 2007 to shortlist tunnelling contractors for the underground works of the Airport Metro Rail Link from New Delhi railway station to Indira Gandhi International (IGI) airport. The contract package includes the structural design and construction based on layout plans prepared by the Delhi Metro Rail Corporation (DMRC), complete design and construction of tunnels by NATM, traffic management during the construction, utility relocation and diversion, etc. The New Delhi railway station to IGI airport metro Link has a length of approximately 18,775 metres. Out of that 12.5 km of stretch will be underground. NATM shall be used most likely from Shivaji Stadium to Moti Bagh station in stretches for about 3 to 3.5 km. Rest of the portion of underground will be either by TBM or by cut-and-cover method. For TBM sections, prequalification document will be put on the DMRC web site in 10 days time. Tenders will be invited from the qualified contractors in 2-3 months time. Visit www.delhimetrorail.com/corporates/tenders/td_020106.pdf or contact Delhi Metro Rail Corporation, 8, Jantar Mantar, New Delhi 110001. Tel. +91 1123362790, fax +91 1123362791. E-mail rkdmrc@gmail.com 05/07.Expression of interest and prequalification, deadline 10th March, 2007 for a concessionaire to design, supply, finance, install, operate, maintain and transfer all systems like rolling stock, traction, signalling and telecommunication, ventilation and air conditioning, track, depot, baggage check-in, etc. required for operation of this Airport Metro Rail Link. The purpose is to advise the prospective bidders of the project, its components and project structure; invite responses from market participants so that the Delhi Metro Rail Corporation (DMRC) can select a short list of qualified bidders for the next stage(s) of the concession process; and advise the market of the evaluation criteria for selecting short listed parties / qualification of the parties. The Airport Metro Rail Link from New Delhi railway station to Indira Gandhi International (IGI) airport has a total length of 18,775 metres, whereof 12,575 metres underground. The underground section from New Delhi to Shivaji terminal will consist of two tunnels of 6 m in diameter each, while the underground section beyond Shivaji terminal to Moti Bagh will consist of one tunnel of 9.5 m diameter. The tunnel diameter is linked to train size, ventilation requirement, permissible air velocity in the tunnel, technical feasibility and size of ventilation fans.For the underground sections, soils are sandy silt of medium to low plasticity. The rock encountered is slightly weathered strong quartzite. Bored tunnelling or cut-and-cover construction is foreseen. For cut-and-cover construction, suitably designed diaphragm walls will have to be provided. Visit www.delhimetrorail.com/corporates/tenders/td_110107.pdf or contact Dy. Chief Engineer (Airport Line), tel. / fax +91 1124366238. E-mail rkdmrc@gmail.com 05/07.The DMRC signed an agreement with a consortium consisting of Pacific Consultants International of Japan, Parsons Brinckerhoff, Japan Railway Technical Service, Tonichi Engineering Consultants of Japan and RITES of India for providing consultancy in tender management, project management and construction supervision for the new airport metro line. Visit www.pci-world.com/en/index.html, www.pbworld.com, www.tonichi-c.co.jp and www.rites.com 05/07.The twin tunnel section to be built by Metro Tunnelling Group belongs to Line 2 which is heading south of the centre. It is approx. 3.2 km long (6.4 km in total). The inner diameter is 5,700 mm and the outer diameter is 6,260 mm. The names of the new stations are Hauz Khas and Malviya Nagar. For this work an existing Herrenknecht shield TBM from a previous contract completed in June 2005 by the same contractor is going to be used after some revamping. The geology is fine grained, consisting of sandy silt. No ground water is expected. Construction is expected to start eight months after notice to proceed. Issuance is expected end of January. End of construction will be 25 months after commencement. Click in/11. Visit www.dywidag-international.com/en/projects/references/india_delhi_metropolitan/index.html and www.herrenknecht.com 05/07.Prequalification notice (No. DMRC/20/II-115/2007), deadline 9th March, 2007 to shortlist tunnelling contractors for design and construction by TBM of the Airport Metro Rail Link from New Delhi railway station to Indira Gandhi International (IGI) Airport. Large diameter TBM shall be used most likely from Shivaji Stadium to Moti Bagh for about 1.5 km. Small diameter TBM shall be used most likely from New Delhi Station to Shivaji Stadium and beyond for a length approx. 3.5 km (each tube will be counted as single length). The Airport Express Rail Link is starting from New Delhi station and passing through Connaught Place, Presidential Estate, Teen Murti Road, Shanti Path, Moti Bagh, Rao Tularam Marg, DDA area near Vasant Vihar, Defence area and finally reaching IGI Airport. Out of total 18.775 km, approximately 12.5 km will be underground, partly in soil and partly in rock and there are stretches where mixed geological conditions have also been encountered during investigation. The project has to be completed before the Commonwealth Games slated in October 2010. Visit www.delhimetrorail.com/corporates/tenders/tenderdoc.pdf or contact Delhi Metro Rail Corporation, 8, Jantar Mantar, New Delhi 110001. Tel. +91 1123362790, fax +91 1123362791. E-mail rkdmrc@gmail.com 08/07.Taiwan's Continental Engineering Corporation (CEC), who holds a 70% share, and local firm Soma Enterprise (30%) have been awarded package contract No. BC-16, worth INR8.13 billion, for the design and construction of the 5,250 m-long stretch between Udyog Bhawan and Green Park stations (both excluded), on the Central Secretariat-Qutab Minar corridor, as part of Phase 2 of Line 2 of the Delhi metro. The scope of works includes twin tunnels, 4,014 m in length and 5.6 m in diameter, and four stations, each 318 m long, at Race Course, Jor Bagh, INA and All India Institute of Medical Sciences (AIIMS). The project will take Line 2 to south Delhi. The contractors have appointed two design consultants for the project, China Engineering Consultants from Taiwan and Tandon Consultants from India. CEC said that four TBMs from Germany and Japan would be imported for the project. The construction period for the project is 40 months. Visit www.cec.com.tw, www.somaenterprise.com, www.ceci.org.tw/english, www.tcpl.com and www.delhimetrorail.com 09/07.Austrian construction company Strabag has bagged a INR5 billion (over EUR83 million) contract from the Delhi Metro Rail Corporation (DMRC) for construction of three 2 km-long tunnel stretches and two underground railway stations. The project will be completed in 38 months by its German subsidiary Dywidag International, which manages Metro Tunnelling Group (MTG), a consortium of two Indian, one Japanese and one South Korean companies. MTG includes Larsen & Toubro, Ircon, Shimizu and Samsung. The project includes design and construction of the civil work of the tunnel. This is part of the second phase of metro development that will extend the network to Indira Gandhi International Airport, Gurgaon, Noida and Badarpur. Click in/11. Visit www.delhimetrorail.com, www.dywidag.com, www.larsentoubro.com, www.irconinternational.com, www.shimz.co.jp/english/index.html and www.secc.co.kr/e_secc/index.asp 16/07.Delhi Metro Rail Corporation (DMRC) invites sealed tenders, deadline 25th June, 2007 from international contractors for the design and construction of two underground stations and tunnels between New Delhi station and Talkatora Garden on the Airport Metro Express Line project, estimated to cost INR5.4 billion. Contact Project Director (ALC), Delhi Metro Rail Corporation, 8 Jantar Mantar Road, Near Patel Chowk Metro Station, New Delhi 110001 or contact www.delhimetrorail.com/corporates/latest_tenders.html 21/07.Five consortia have shown interest in designing, supplying, installing, commissioning, operating and transferring all systems like rolling stock, traction, signalling and telecommunication, ventilation and air conditioning, track, depot and other facilities, automatic fare collection, baggage check-in and handling required for the 18.7 km Airport Metro Rail Link from New Delhi railway station to Indira Gandhi International (IGI) airport, whereof 12.6 km underground. They are: Bombardier and IL&FS; Siemens Transportation, Leighton Asia and Gammon Infrastructure Projects; GE Transportation and Larsen & Toubro; CAF and Reliance Energy; and YTL Corp. The concessionaire will operate the system for 30 years, including construction time. 31/07.In March, the Delhi Metro Rail Corporation (DMRC) named a joint venture led by Pacific Consultants International of Japan and including Japan Railway Technical Services, Tonichi Engineering, Rail India Technical and Economic Services (RITES) and Parsons Brinckerhoff as the general consultant for the Delhi Airport Rail Link. The a four-station express rail line is being delivered as a public-private partnership (PPP) and is due to open in time for the 2010 Commonwealth Games. The joint venture will provide a range of services throughout the development of the rail link, and initially will prepare tender documents, oversee the bidding process and award of contacts to the project, followed by design review and approvals. Once contractors have been appointed, the joint venture will supervise and monitor all contractors, design consultants, suppliers and manufacturers. Responsibilities will also include safety assurance, verification of testing, trials and commissioning of systems, planning for operations and maintenance and training of DMRC personnel. Visit www.delhimetrorail.com, www.pci-world.com, www.jarts.or.jp/en/index.html, www.rites.com and www.pbworld.com 31/07.Hindustan Construction Company in joint venture with Alpine Mayreder and Samsung Corporation bagged a INR7.74 billion contract from Delhi Metro Rail Corporation (DMRC) for the design and construction of 2.2 km-long twin bored tunnels, with a finished internal diameter of minimum 5.6 m for single track railway, including access and ventilation shaft and a 1.27 km-long cut-and-cover tunnel with two underground stations (New Delhi and Shivaji Stadium) for twin track railway including ramps and reinforced concrete structures to the underground stations. It also includes external and temporary works for the metro rail transmission system link between New Delhi and Talkatora Garden stations. This project is part of the Airport Metro Express Line and is to be completed in 32 months from the date of conclusion of the agreement. HCC's share in the total value is 33% or INR2.55 billion. Visit www.hccindia.com, www.alpine.at and www.secc.co.kr/e_secc/index.asp 40/07.Hindustan Construction Company has received a contract worth INR9.8 billion from Delhi Metro Rail Corporation (DMRC) to construct two underground stations and a tunnel between New Delhi and Talkatora Garden stations on the Airport Metro Express Line project. Visit www.hccindia.com 44/07.A 51-49 joint venture of Larsen & Toubro (L&T) and Shanghai Urban Construction (Group) Corporation has won a INR2.75 billion order from the Delhi Metro Railway Corporation (DMRC) to design and build a 2.4 km twin tunnel starting from the Indira Gandhi International Airport station to Dwarka Sector 21 on the Airport Metro Express Line. The JV is the first of its kind with a Chinese partner. To be completed in 120 weeks, the project involves construction of 1.6 km of bored twin tunnel using a TBM and 800 metres of tunnel by cut and cover method. Out of the six underground packages already awarded by DMRC in the Central Secretariat-Qutub Minar corridor of the Phase II projects, L&T and L&T JVs have so far bagged five contracts for a combined value of INR9.25 billion. With this new order, the total value of orders reaches INR12 billion. Visit www.larsentoubro.com and www.sucgcn.com/english/01.php 48/07.Hindustan Construction Company (HCC) has bagged a INR2.97 billion contract in joint venture with Alpine Mayreder from the Delhi Metro Rail Corporation (DMRC). HCC has a 49% share of the value (INR1.45 billion). The contract covers the design and construction of a 2.6 km-long NATM tunnel between Talkatora Garden and Budha Jayanti Park stations, with a finished internal diameter of minimum 10 m for twin track railway, including access and ventilation shaft. It also includes external and temporary works for the metro rail transmission system link between Talkatora Garden and Budha Jayanti Park. This project is part of the Airport Metro Express Line and it has to be completed by 15th July, 2010. In September 2007, HCC in joint venture with Alpine Mayreder and Samsung Corporation had received a design and construction contract of two stations and a tunnel between New Delhi and Talkatora Garden stations. Click in/11. Visit www.hccindia.com and www.alpine.at 52/07-01/08.Invitation to tender, deadline 26th February, 2008 for design, manufacture, supply, installation, testing and commissioning of tunnel ventilation system and TVS-SCADA for nine underground stations (Udyog Bhawan, Race Course, Jorbagh, INA, AIIMS, Green Park, Haus Khas, Malviya Nagar and Saket) and associated tunnel sections on the Central Secretariat to Qutub Minar corridor of Phase 2 of Line 2 of the Delhi metro. Contact Delhi Metro Rail Corporation (DMRC), Chief Electrical Engineer/Planning, 3rd Floor, NBCC Place, Bhishma Pitamah Marg, Pragati Vihar, New Delhi 110003, e-mail sharatsharma@dmrc.org. Visit www.delhimetrorail.com 03/08.

Delhi Metro Rail Corporation (DMRC) has awarded a EUR54 million contract to Hindustan Construction Company for design and construction by shield TBM of a 2.2 km-long twin tunnel between Shalimar Baug (underground) and Netaji Subhash Place (semi-underground) stations on the Mukundpur-Yamuna Vihar corridor, under Phase III of the Delhi Metro. Contract duration 36 months. Visit www.hccindia.com and www.delhimetrorail.com. 45/12.

Delhi Metro Rail Corporation (DMRC) has awarded to the JV L&T Construction (68 percent)/Shanghai Urban Construction Group (32 percent) a EUR178 million contract for design and construction of a tunnel between Shankar Vihar and Hauz Khas, as well as underground stations at Vasant Vihar, Munirka, R.K. Puram, IIT and Hauz Khas. Visit www.delhimetrorail.com and www.larsentoubro.com. 48/12.

Open invitation to tender, deadline 13/11/2019, for Design and Construction of a Twin Tunnel by Shield TBM, a Cut & Cover Tunnel box, an underground ramp and one Underground station namely Krishna Park Extension with Entry/Exits & Connecting subway by Box pushing method including Architectural Finishing, Water Supply, Sanitary Installation & Drainage works from chainage 805.110m to 2830.863m (UP Line) & from chainage 2788.198 m to 2814.745 m (DN Line) of Janakpuri West to R.K.Ashram Corridor (Extension of Line 8) of Phase-IV of Delhi MRTSi (Contract DC-06). Janakpuri (West)-RK Ashram is the 28.92-km extension of the Magenta Line and it will have 25 stations. Clarification End Date:14-Oct-2019 up to 17:00 h. Pre bid meeting will be held at Delhi Metro Rail Corporation,  New Delhi on 15-Oct-2019, at 11 a.m.  The completion period of the Work: 36 months Contact Delhi Metro Rail Corporation, attn Chief Engineer/Contract, New Delhi, email gmcontracts@dmrc.org. For bid documents click here and here  

Ref.n. 2019_DMRC_507388_1 . 41/19.

A total of four bidders for the first underground tunneling contract (package DC-06) of phase IV of Delhi Metro Rail project:  Joint Venture Hindustan Construction Company Ltd/Vensar Constructions Company Ltd (lower offer Rs 489.00 crore), Afcon Infrastructure Ltd (Rs 643.50 crore), Tata Projects Ltd (495.27 crore) and Joint Venture SUCG-STEC (declared disqualified in technical evaluation).

The letter of acceptance will be issued by DMRC after the evaluation of the financial bid.

The contract DC-06  involves the section from chainage 805.110mt. to 2830.863mt. (UP Line) & from chainage 788.198 mt. to 2814.745 mt. (DN Line) of Janakpuri West to R.K.Ashram Corridor (Extn. of Line-8) of Phase-IV of Delhi Metro Rail project click here for more. Ref.n. 2019_DMRC_507388_1 . 01/20.

Open invitation to tender, deadline 31/05/2021, for the  Design and Construction  of Twin Tunnels (Up & Down Line) by a Shield TBM, Cut and Cover Tunnel box and 4 Underground stations (Aerocity, Mahipalpur, Vasant Kunj and Kishangarh) with Entry/Exits & Connecting subways from 760 m to 5356.285 m of Aerocity to Tughlakabad Corridor of the Phase-IV of the Delhi MRTS. Pre-bid Meeting: 1100 hrs on 29.04.2021. Duration of the contract is 42 months. Contact  Delhi Metro Rail Corporation, New Delhi , tel +91 011-23415838, email gmcontracts@dmrc.org. For further on the tender, please click here. Tender Reference n. DC-08. Ref. n. 2021_DMRC_626369_1. 16/21. 

The Joint Venture HCC-VCCL (Hindustan Construction Company Ltd-Vensar Constructions Company Ltd) secured the EUR 58.35 million (INR 4.89 bn) contract, package DC-06,  for the design and construction of twin tunnel by Shield TBM, Cut&Cover tunnel box, underground ramp and one underground station named Krishna Park Extension with entry/exits & connecting subway by the box pushing method, including architectural finishing, water supply, sanitary installation & drainage works from chainage 805.110mt. to 2830.863m. (UP Line) & from chainage 788.198 m  to 2814.745 m (DN Line) of Janakpuri West to R.K.Ashram Corridor (Extn. of Line-8) of Phase-IV of Delhi MRTS. Janakpuri (West)-RK Ashram is the 28.92-km extension of the Magenta Line and it will have 25 stations. Contact Delhi Metro Rail Corporation, New Delhi. Visit https://etenders.gov.in/eprocure/app. Ref.n. 2019_DMRC_507388_1 . 02/20. 

Afcons Infrastructure Limited from Mumbai secured the EUR 296.24 million (INR 24.82 bn) contract, Package DC-05, for the design and construction of a twin tunnel by Shield TBM, tunnel by Cut&Cover,  underground ramp at Derawal Nagar and 6 underground stations -  named Derawal Nagar, Ghanta Ghar, Pulbangash, Sadar Bazar, Nabi Karim and Ramakrishna Ashram Marg - including architectural finishing, water supply, sanitary installation & drainage works of stations on Janakpuri West to R.K.Ashram Corridor (Line-8 Extension) of Phase-IV of Delhi MRTS. Contact Delhi Metro Rail Corporation, New Delhi. Visit https://etenders.gov.in/eprocure/app. Ref.n. 2021_DMRC_629255_1. 05/22. 

Notice Inviting Tender, deadline 16/08/2022, for maintenance contract for controlling leakage and seepage in underground section including tunnel, station building, ancillary building , staff quarters and depot of line-7 from Majlis Park to Durgabai Deshmukh South Campus stations of line-7 ij New Delhi. On 02.08.2022 at 11:00Hrs the pre bid meeting shall be conducted through video conferencing. Registration needed at least 24 hours before the meeting (latest by 11:00Hrs on 01.08.2022), by email at DMRC, email cetenderonm@dmrc.org. Contact Delhi Metro Rail Corporation Ltd, New Delhi. Visit https://eprocure.gov.in/eprocure/app. Ref.n. OCM-1150. 30/22. 

Notice inviting tender, deadline 17/01/2024, for comprehensive annual maintenance contract for Notifier make Fire Detection and Alarm System installed at DMRC Airport Line (Orange Line) Stations, Tunnel Ventilation Building, D-21 Depot Building and Grey Line 9 UG stations in Delhi Metro. Duration of contract 5 years. Contact Delhi Metro Rail Corporation Ltd, attn Senior General Manager/Contract, New Delhi. Visit https://eprocure.gov.in/eprocure/app. Ref.n. OEM-1517. 01/24. 

The consortium put together by South Korea's Daelim Industrial Co. (agent, 40%), includes Italy's Astaldi SpA (30%) and dall'indonesiana WIKA - Wijaya Karya (30%) was awarded two contracts for the construction of the first of the two phases at Upper Cisokan Hydroelectric Project on the Island of Java, Indonesia.

The Upper Cisokan project is among the most important to date in the country in the hydroelectric sector and is funded by the World Bank.

The project has been commissioned by PT PLN Persero, the company that manages public power plants in Indonesia. The new contracts include the construction of all civil works related to the construction of two dams, Upper and Lower Dam,  75m and 98 m high, with a total volume of 1,000,000 m3 of RCC (Roller Compacted Concrete). The plant will ensure the movement of water at night through a pumping system from the Lower Upper Dam and by day the production of electricity through the reverse cycle of the water flows. The installed capacity is forecast to be  1.040MW and includes the completion of the systems to ensure water supply through a 6 km tunnel with a 10 m diameter, an underground power station (26 m wide, 51 m high, 156 m long), the ventilation system and an electrical substation. The works are to be finished within 50months, with start-up in early 2016.

Visit http://www.pln.co.id/, https://www.daelim.co.kr/eng/main.do, http://www.astaldi.it/ and http://www.wika.co.id/. 42/15.

Power companies China Huadian Corp and PT Bajradaya Sentranusa of Indonesia are set to start construction of the 180 MW Asahan I hydropower plant in North Sumatra. A 6.6 km-long 8 m-wide tunnel will be built to increase the water level. Most of the tunnel construction would be carried out by local companies, including PT Wijaya Karya, PT Pembangunan Perumahan, PT Waskita Karya and PT Miduk Arta. Visit www.wika.co.id/eng and www.waskita.co.idPreparations at the location are expected to be completed by the end of June so that construction could start in July. Construction of the USD266.67 million project in Porsea, Toba Samosir, would take 39 months. The project would use water from Lake Toba, taken via the Asahan river, to generate primary electricity of 1,175 GWh and secondary electricity of 100 GWh per annum. 23/06.

Feasibility study by the Bandung Institute of Technology (ITB) recommends to build a tunnel between Merak and Bakauheni to replace ferry route connecting Java with Sumatra. Cost around US$4 billion, 50% cheaper than a long bridge across the Sunda Strait. ITB to prepare design within three years. Project could start in 2006. 48/02.Funding for the twin-tube tunnel that will connect Java and Sumatra across the Sunda Strait will come from the government and private parties. The tunnel is to span 33 km and is located 40 m below the seabed. It will be 8.5 m wide and 6.6 m high. Potential investors include state-owned oil and gas company PT Pertamina, state telecommunications company PT Telkom, state gas company PT Gas Negara, state electricity company PT PLN, telecommunications company PT Indosat, state-owned train operator PT KAI and coal mining company PT Bukit Asam. Several undisclosed consortia from Europe and China have also expressed interest in investing in the project. A feasibility study, which will take two years, is to be conducted soon. The tunnel is expected to be finished by 2015. The strait between Java and Sumatra is one of the busiest sea routes in the country. Some 13 to 20 million people cross the Sunda Strait each year, and this figure is expected to grow. By 2020, the number of cross-strait travellers is estimated to reach 40 million. Cost estimated at USD1.5-2 billion for each tube. Visit www.nusantaratunnel.co.id 19/04.

US$5 billion 100 m-deep underground sewerage system similar to Singapore's DTSS is planned by the city. Memorandum of Implementation Agreement with Sydney-based waste management firm Global Grid to be signed by the end of June 2002 for US$5 million feasibility and mapping studies. Project to be developed under BOT. Tunnelling could start as early as 2003. 21/02.

Approval for plan by Itochu of Japan to build 14.5 km north-south line with 17 stations for completion in 2003. To be funded by consortium of Indonesian, Japanese and German companies. March 1999.

Sumitomo Mitsui consortium awarded EUR282 million contract for construction of 5.9 km-long tunnel as part of first phase of 15.7 km metro section linking Hotel Indonesia circle in CBD to Lebak Bulus in the south, to be completed by 2017. The south-north line will eventually be 23.8 km-long, and the east-west line 87 km-long. Visit www.jakartamrt.com. 19/13.

Invitation for Prequalification of Consultant for Operation and Maintenance Consulting Services (OMCS) for Project of Jakarta MRT System Phase 1 Lebak Bulus - Bundaran Hotel Indonesia. Duration of contract 48 months. All interested applicants should register with tender committee before 11.07.2014 – 3 p.m. Jakarta local time.  Visit http://www.jakartamrt.com/images/uploads/pengadaan/Invitation%20for%20Prequalification%20of%20OMCS%20website%20final.pdf. 28/14.

Pöyry has been awarded a EUR7 million engineering services contract by Sepasad Engineering Co. to undertake engineering services during the implementation of the 450 MW Rudbar-e-Lorestan hydropower project. Previously, Pöyry carried out technical studies for the project. The Rudbar-e-Lorestan dam and hydropower project will consist of a 180 m-high roller compacted concrete dam to create a reservoir with an estimated gross capacity of 228 million cubic metres. Water from the reservoir will be diverted through a 3 km-long headrace tunnel into the adjacent valley and hence in twin surface steel penstocks down to the surface power house on the bank of the Alkan river. The Rudbar-e-Lorestan hydro project is to be constructed in the upper reaches of the Dez catchment in the Zagros Mountains. Visit www.poyry.com 26/07.

Contractor Alamoot to build 7 km twin-tube metro tunnel for client Tabriz Urban Railway Organization (TURO). Excavated diameter is 6.8 m and inner diameter is 6 m. Two NFM Technologies EPB TBMs will be used. Lining with prefabricated concrete rings, with five 1.4 m-wide segments and key per ring. The line also includes one 80 m-long station every 800 metres. Click here. Visit www.nfm-technologies.com and www.alamoot-co.com 03/06.According to conducted feasibility studies, three routes have been selected with a total length of 44 km and 60 stations for the metro in Tabriz. Priority has been given to Line 1 with a total length of 18 km and 28 stations. This route starts from EI Gloi (southeast part of the city), passes through Bahman 29 Boulevard, Emam Khomeini Avenue (main street of the city), Khayyam Avenue and ends up in Lale district. The first part of this line is under construction and the second part is being designed. At both ends of the line, main terminals and depots have been designed for wagon maintenance and repair.Construction of Line 1 is divided in several phases. Phase one starts at EI Gloi terminal and ends at Rah-no-maee. This section is a shallow tunnel and is under construction by cut-and-cover method.Phase two starts at Rah-no-maee and ends at Tabriz University Round Square. This section comprises a pre-stressed elevated bridge starting from Shahriyar hotel and passing over Bahman 29 Boulevard and the entrance of Vali-Asr Street and then gradually reaches ground level in front of Bahman 29 hospital where station number six and the Tabriz Urban Railway Organization (TURO) central control room and head office building will be located. The rest of line will be a shallow tunnel up to Tabriz University Round Square.Phase three starts at Tabriz University Round Square and ends at Khayyam Avenue. This section will be constructed as a deep tunnel for a total length of eight kilometres due to existing city life, narrow avenues and tall buildings along the avenues. Excavation will be done by an EPB shield machine supplied by NFM Technologies. The tunnels will be twin tubes of 6.88 m diameter.Phase four starts at Khayyam Avenue and ends at Lale terminal. This section is being designed and alternatives are elevated bridge and shallow tunnel. Click here. Visit www.tabrizmetro.org 06/06.

SELI and local subcontractors will build the Sulekan pressure water tunnel, a 56 km-long 4.08 m-diameter tunnel, for the Rafsanjan Development Organization (RDO). The tunnel, between Sulekan Dam to Anar and Rafsanjan, will cross the Sannandaj-Sirjan-Zagros portion of the Zagros mountains. Geology is sedimentary rock, sandstone, marls and limestone. SELI will use two of its own double-shield TBMs. The tunnel will be lined with four hexagonal concrete segments, fastened with pins. Mucking-out with loco and muck cars. Tunnelling to start in July 2005. Cost: EUR134 million. Visit www.selitunnel.com 38/04.