Bhutan,
Dagana District
- bt/13
Hydropower
The Dagachhu Hydro Power Corporation (DHPC) invites sealed bids, deadline 30th September, 2008, for design, build and completion of Lot I (civil works), consisting of engineering, procurement and construction of a diversion weir, connection channel and tunnel, desilter, shafts, powerhouse, maintenance and control buildings, water supply, sewerage and sewage treatment system, lighting and small power distribution system. The civil engineering component of the project is difficult due to extreme gradients and unstable slopes. Water from the Dagachhu is diverted by a small dam at an altitude of approx. 825 m above sea level through a short tunnel into the de-silting basin. From there, the water will flow through the main tunnel (approx. 7,700 m) and through the steel penstock (approx. 360 m) into the powerhouse. Contact Dagachhu Hydro Power Corporation (DHPC), General manager, Changangkhang, Post Box No. 1223, Thimpu, Bhutan. Tel. +975 2336095, Fax +975 2336093. E-mail dhpc@druknet.bt 36/08.
Bhutan,
Wangduephodrang District
- bt/12
Hydropower
Tender notice, deadline 31st March, 2008 for the purchase of tunnelling machinery for implementation of the 1,095 MW Punatsangchhu I hydropower project, which includes a 137 m-high concrete gravity dam, a 10.3 m-diameter 7.5 km-long headrace tunnel and an underground power house. The construction equipment required involves: 1) three two boom hydraulic drill jumbos, with two service platforms for high speed tunnelling, advance boom control, including hydraulic driven compressor, with water booster pumps, cable reel, lights, etc. suitable for cross-section up to 110 square metres; 2) three fully mechanised hydraulic rock bolting rigs for roof height up to 11 metres, suitable for drill steel support with three positions (drilling, bolting and grouting) with one feed for all operations, storage for 10 bolts, bolt length up to 6 metres; 3) three wet shotcrete machines complete with carrier telescopic spraying arm, hydraulic unit, lighting platform, liquid dozing unit. etc. with pumping capacity of about 30 cu m/h; 4) six hydraulic excavators having bucket capacities of about 1 cu m (3 units) and about 1.5 to 2 cu m (3 units) and powered by electric engine, suitable for underground/open excavations, 360 continuous slew type undercarriage tracked; 5) three wheel loaders having bucket capacity of about 3 cu m, front as well as side dump, complete in all respects; 6) nine transit mixers (off highway mobile) having drum concrete capacities of 4 cu m (3 units) and 6 cu m (6 units), truck-mounted, with all the standard accessories complete in all respects; 7) 14 rear dumpers suitable for working inside a 10.3 m-diameter circle-shaped tunnel/open areas having approximate capacities of 12 tonnes (3 units), 18 to 20 tonnes (9 units) and 25 tonnes (2 units); 8) 12 tippers having approximately 6 cu m capacity which can reverse easily; 9) six stationery water cooled electric screw type air compressors having 500 cfm capacity and working pressure 7.5 to 10 kg/sq cm; 10) three 630 kVA, 11/0. 433 KV distribution transformers. Contact Punatsangchhu I hydroelectric project authority, Office of the superintending engineer (mech.), PO Box 290, Phuentsholing, Bhutan. Tel. +975 5252038, fax +975 5252841, e-mail semthpa@druknet.btThe Punatsangchhu I hydropower scheme in Wangduephodrang district is about 240 km from Phuentsholing, the border town of Bhutan with India's West Bengal located 170 km from Siliguri. The project is a joint venture of the governments of Bhutan and India. 11/08.
Award of two contracts for 990 MW Punatsangchu 2 hydropower project to Jaiprakash Associates: EUR190 million for construction of diversion tunnel, dam intake and desilting arrangements including hydro-mechanical works, and highway tunnel; EUR130 million for construction of headrace tunnel from surge shaft, surge shaft, butterfly valve chamber, pressure shafts, powerhouse and tailrace tunnel including hydro-mechanical works. Visit tunnelbuilder archive bt/12 for project history. More from www.jalindia.com. 30/11.
Bhutan,
Tala
- bt/11
Tala Hydro - Drill / Blast
Project on Wangchu river will generate 1020 MW and will require 22.25 km x 50 m² headrace tunnel, 2 x 992 m long pressure shafts, 2.2 km x 60 m² tailrace tunnel and underground powerhouse. Mainly Atlas Copco equipment delivered under $8 million package. Work commenced November, 1998 for completion May, 2004. Larsen & Toubro awarded RS900 million contract November, 1998 to build tunnel for Tala Hydroelectric Project Authority for completion early 2004. February 1999.
Five contract packages numbered C-1 to C-5. C-1 comprises the dam complex and 6 km of headrace tunnel (HRT) awarded to Hindustan Construction Company (HCC); C-2 excavation of HRT from 6 km mark to 11 km mark awarded to Jaiprakash Industries; C-3 excavation of HRT from 11 km mark to 15 km mark awarded to Larsen & Toubro; C-4 excavation of HRT from 15 km mark to 22.9 km mark awarded to HCC; C-5 comprises surge shaft, pressure shafts, powerhouse, and 2.2 km tailrace tunnel awarded to Jaiprakash. Each of the contracts has its own access roads and adits, and the individual sites are self-sufficient. Client THPA has built 80 km of access roads to date and work is proceeding on another 20 km to complete. THPA also procured a starter pack of equipment for each contract during tender phase in order to speed up mobilisation. These were on a cost reimbursement basis and included per contract: an Atlas Copco 352 drillrig; a Boltec 435 H rockbolter; a CIFA CSS 2 Spritzsystem shotcrete jumbo; a CK90E 1.2 cu m electric loader; and two Wagner MT 420 dumptrucks. Contractors have since been adding to the fleet, generally purchasing more of the same models.
To date, HCC has completed the diversion tunnel under C-1 and is proceeding to establish three massive desilting chambers and the first section of HRT. Jaiprakash has not been so fortunate on C-2 where it had to deal with a 15 m-long face collapse when it intersected an aquifer 122 m from the portal in its Pade Chu adit. Currently advancing with caution under the protection of 15 m probeholes. Larsen & Toubro has more than half completed its 975 m-long Gedu Chu access adit under C-3, and HCC has nearly completed its 301 m-long Mirchan Chu access adit on C-4. Jaiprakash is portalling at the surge shaft position on C-5. More information from mdthpa@druknet.net.bt October 1999.
Shri R. N. Khazanchi, MD of Tala Hydroelectric Project Authority (THPA) in the Himalayan mountain kingdom of Bhutan, has commented on the widespread damage caused to the project by the unprecedented rainfall in early August. Flooding affected the five worksites strung out along the Wangchu river, washing out access roads and destroying workshops and machinery. Even the main highway from Phuntsholing, along which vital supplies are transported, was cut by landslides in a number of places. Measures have been initiated to minimise the impact on the commissioning schedule of the project, despite the severe losses of infrastructural facilities, construction equipment and civil engineering works. Undaunted, THPA has commenced the construction of two 400 kV double circuit transmission lines for the 1,020 MW project for export of surplus power to India through a proposed substation at Siliguri. The lines will be completed in 3 years time to match the commissioning of the generating units. Within Bhutan they will be installed by Larsen & Toubro, and from the Indo-Bhutan border for 1,500 km to Muzaffarnagar in Uttar Pradesh, near Delhi, by Power Grid Corporation of India Limited.
Lyonpo Khandu Wangchuk, Minister for Trade, Industry & Power, Royal Government of Bhutan, who is also the chairman of THPA, commended the management and contractors for the speedy restoration of works. More from linkman@druknet.net.bt or mdthpa@druknet.net.bt October 2000.
Bolivia,
Sucre
- bo/15
Water Conveyance System
Prior Information Notice for the Sucre III Water Conveyance System, Lot 3: Tunnels, bridges and aqueducts. The conveyance system has a total length of 10.34 km, and consists roughly of the following main components:
- Three tunnels with a total length of 7,754 m (Fisculco tunnel: 5.484 km; Aritu Mayu tunnel: 0.21 km; Punilla tunnel: 2.06 km) with a main horseshoe-shaped tunnel section of 10 m2.
- Interconnections between Fisculco – Aritu Mayu and Aritu Mayu – Punilla tunnels, consisting of an embankment (of 103 m crown length made up of tunnel extracted materials) and a post-tensioned concrete bridge aqueduct (with a total length of 157 m + 56 m of accesses) respectively.
- Main pipeline conveyance made up of following stretches:
- 8.15 km Fiberglass Reinforced Plastic (GRP) pipe, ø = 1,200 mm, free surface flow (the pipeline will be installed inside the completed tunnels and on top of the interconnection structures)
- 0.85 km High Density Polyethylene (HDPE) buried pipe, ø = 1,200 mm, free surface flow
- 1.22 km GRP pipe, ø = 900 mm (Santa Catalina Pressure Pipe)
The conveyance system is designed for a maximum flow capacity of 1,200 l/s, which corresponds to the water demand for Sucre in the year 2050.
The estimated contract value for Lot 3 works is equivalent to EUR 33 million. Estimated date of publication of procurement notice: Third or Fourth Quarter of 2020. For further information click here (English) and/or here (Spanish). 20/20.
Notice to tender, deadline 03/08/2021, for the construction of the Sucre III Water Conveyance System (Lot 3). The conveyance system has a total length of 10.34 km, and consists roughly of the following main components:
- Three tunnels with a total length of 7,754 m (Fisculco tunnel: 5.484 km; Aritu Mayu tunnel: 0.21 km; Punilla tunnel: 2.06 km) with a main horseshoe-shaped tunnel section of 10 m2.
- Interconnections between Fisculco – Aritu Mayu and Aritu Mayu – Punilla tunnels, consisting of an embankment (of 103 m crown length made up of tunnel extracted materials) and a post-tensioned concrete bridge aqueduct (with a total length of 157 m + 56 m of accesses) respectively.
- Main pipeline conveyance made up of following stretches:
- 8.15 km Fiberglass Reinforced Plastic (GRP) pipe, ø = 1,200 mm, free surface flow (the pipeline will be installed inside the completed tunnels and on top of the interconnection structures)
- 0.85 km High Density Polyethylene (HDPE) buried pipe, ø = 1,200 mm, free surface flow
- 1.22 km GRP pipe, ø = 900 mm (Santa Catalina Pressure Pipe)
A site visit is scheduled on 29/06/2021 at 08:00 AM. Following the site visit, a Pre-bid meeting will take place on 30/06/2021 at 02:00 PM. Participation in the site visit is mandatory. Prospective Bidders who do not participate in the pre-scheduled visit shall undertake it on their own.
Value of the contract is EUR 32.82 million. Contact ELAPAS (Empresa Local de Agua Potable y Alcantarillado Sucre), attn Eng. Willheim Pierola , tel 591 (4) 645-5211, email sucre3@elapas.com.bo. For further information click here (English) and/or here (Spanish) and visit https://www.infosicoes.com/. Cuce .n 21-0802-00-1141935-1-1, Ref.n. BMZ-Nr. 2009 65 608. 24/21.
Bolivia,
Misicuni
- bo/11
Water/Irrigation/Hydro - Hardrock TBM
Astaldi of Italy and ICE of Bolivia using Robbins TBM in hard, faulted, abrasive sandstone of 40-125 MPA. March 1999.
A state of emergency was declared in Bolivia following protests about the expected rise in water charges that will accompany the $200 million Misicuni waterworks contract in Cochabamba. The centrepiece of the project is a very difficult 19 km-long diversion tunnel, which was commenced in 1995. TBM operations in the Calio sector got underway in November, 1998 and less than 500 m has been accomplished to date due to cataclastic rocks associated with a 700 m-wide fault system under 800 m cover. The plasticity of the strata causes a squeezing of 10-12 cm immediately behind the TBM which, if not supported before the crown opens, results in cave-in. Advance in April at Calio was 85 m, the highest achieved to date and in the Bocatoma sector the Robbins TBM has completed 2.5 km. Type in Misicuni at www.alltheweb.com for further details. May 2000.
Contract extension granted to Astaldi to complete excavation until 30th April, 2002 of the 19.5 km Misicuni water tunnel in Cochabamba and install the lining by 11th March, 2003. Contractor ICE withdrew from the contract. Early September, 2001, 8.4 km had been bored between the intermediate shaft and the Bocatoma portal, as well as 6.1 km between the intermediate shaft and Ventana Calio with 4 km still to go on the latter section. Bolivia's government accepted in September, 2001 a proposal by US consultant Glenn Genkins to separate the US$62 million construction of the Misicuni tunnel from other assignments. 46/01.
Supreme Decree issued by the government of Bolivia on 25th February, 2002 allowing Empresa Misicuni to negotiate a contract with another contractor to finish the last 500 m of the 19.3 km-long Misicuni tunnel. Contract with Astaldi-ICE jv was cancelled after the jv stopped work in January. The project, first proposed nearly 50 years ago, has been underway since 1995 after extensive engineering studies by Electrowatt Engineering in the 1980s. Tunnelling started in 1998 and the Bocatoma section of the tunnel was completed in May, 2000 when the Robbins hard rock TBM reached the intermediate shaft. This shaft, at over 3,800 m elevation, is one of the highest in the world. The Robbins TBM at Calio achieved advances exceeding 840 m/month, 240 m/week, 55 m/day and 30 m/shift. Antony Ivan Smith is presently the Superintendente of the 12 km-long Calio section of the Misicuni tunnel. More from aivansmith@msn.com. 12/02.
Empresa Misicuni signed on 19th March a contract with Robbins to complete the last 500 metres for $680,000 saying Robbins has the know-how to finish the tunnel under the same terms as the Astaldi-ICE jv, which pulled out from the project. Robbins equipment was used by the jv. Tunnelling is to resume by the end of March. Time frame of 45 days. Court arbitration will be given in Paris to sort out the dispute between the jv and Empresa Misicuni. Visit www.robbinstbm.com 13/02.The 19.2 km-long Misicuni tunnel was completed on Thursday 4th July, 2002 when the Robbins TBM 1015-271 finally bored into the Pozo section of the tunnel, which had been found flooded at original breakthrough on 15th June, 2002. Water is now flowing through the 5 km-high Cordilleran Andes to the Cochabamba Valley, realizing a 45 year dream. After the removal of the TBM, the Calio section of the tunnel will be concreted. For further information contact Antony Ivan Smith aivansmith@msn.com or visit www.robbinstbm.com 29/02.
Bosnia and Herzegovina,
Erzegovina-Neretva
- ba/19
Road
Prior information notice without call for competition for the construction of the priority motorway sections along the Corridor Vc - Ovcari - Tunnel Prenj - Mostar North. The proposed project, which has a total estimated cost of 540,000,000.00 EUR, will require the procurement of:
Construction of the following motorway section:
• Section Tunnel Prenj (length = 12,4 km) • Ovcari - Prenj (to be defined) • Section Prenj - Mostar North (to be defined)
Consultancy services for the following activities:
• Supervision and technical assistance of the section Tunnel Prenj (length = 12,4 km) • Supervision of the section Ovcari - Prenj (to be defined) • Supervision of the section Prenj - Mostar North (to be defined).
Tendering for the Tunnel Prenj Section is expected to begin in the first half of 2020. Tendering for the above contracts is expected to begin on 31/03/2020.
Interested suppliers, contractors and consultants are invited to attend the Road Show at 12:00 hrs on 16 January 2020 at PC Motorways of the Federation of Bosnia and Herzegovina Ltd Mostar, Sarajevo. Attendance at the Road Show should be confirmed at Mrs. Lejla Hodzic and Mr. Tarik Durakovic, PC Motorways of the Federation of Bosnia and Herzegovina Ltd Mostar, Sarajevo, tel +387 (0) 33 277 922 and +387 (0) 33 277 966, emai h.lejla@jpautoceste.ba. For tender information please click here and here. Ref.n. 51700-GPN-noTeRef. 03/20.
Open invitation to tender, deadline 24/05/2021, for the Geological and Geotechnical Investigation work and preparation of Geotechnical Design (Mission G21) to be prepared for the 12,4 km Prenj tunnel exit (22+1) - Interchange Mostar north (34+5) subsection of the Mediterranean Corridor, Bosnia and Herzegovina - Croatia CVc Road Interconnection. This subsection includes the following major structures: Tunnel 4 (860/800 m), Tunnel 5 (2290/2210 m), Bridge 8 (230/360 m), Bridge 9 (320/330 m) and Bridge 10 (380/430 m). For procurement documents, click here. The value of the contract is EUR380,000, excluding VAT. Duration of the contract is 8 months. For additional information contact COWI IPF, att Gordana Opalic, Belgrade, email office@wbif-ipf8.eu, where tenders must be sent. For further on TED tender, please click here. Ref.n. 1192/21/GO. 15/21.
Open invitation to tender, deadline 11/06/2021, for the geotechnical Investigations and Preparation of Geotechnical Design (Mission G21 including Mission G1), Mediterranean Corridor CVc, Konjic (Ovcari) (0+000) - Entrance to Tunnel Prenj (11+950) is Total Length 11,95 km, including the following major structures : Tunnel 1 (2200/2150m), Tunnel 2: 437/325m; Bridge 1 (250/217m), Bridge 2 (484/480m), Bridge 3 (557/657m), Bridge 4 (55/55m), Bridge 5 ( 130/186 m), Bridge 6 (367/410 m), Bridge 7 (55/55m). For procurement documents, click here. Value of the contract is EUR330,000, excluding VAT. Duration of the contract is 8 months. For additional information contact COWI IPF, att Gordana Opalic, Belgrade, email office@wbif-ipf8.eu, where tenders must be sent. For further on TED tender, please click here. Ref.n. 1201/2021/GO. 18/21.
The Consortium Integra d.o.o. Mostar (Leader) from Mostar, IGH d.o.o. (from Mostar), Geocon d.o.o. Citluk from Citluk secured the EUR 377,979 contract, excluding VAT, for the Geological and Geotechnical Investigation work and preparation of Geotechnical Design (Mission G21) to be prepared for 12,4 km Prenj tunnel exit (22+1) - Interchange Mostar north (34+5) subsection of the Mediterranean Corridor, Bosnia and Herzegovina - Croatia CVc Road Interconnection. This subsection includes the following major structures: Tunnel 4 (860/800 m), Tunnel 5 (2290/2210 m), Bridge 8 (230/360 m), Bridge 9 (320/330 m) and Bridge 10 (380/430 m). Contact WBIF (Western Balkans Investment Framework ) Infrastructure Project Facility – Technical Assistance 8 (IPF 8)’ consortium, represented by COWI A/S at Kongens Lyngby (DK), attn Claus Hvashoj Jorgensen, email chj@cowi.com. For further on TED tender, please click here. Ref.n. 1192/21/GO. 30/21.
Restricted procedure, deadline 17/02/2022, for the consultancy services for development of Preliminary Design with elements of Detailed Design for the works contract for Tunnel Prenj and tender documents). For tender documents click here, where tenders must be sent. Value of the contract is EUR 6million, excluding VAT. Duration of the contract is 6 months. Contact Motorways of the Federation of Bosnia and Herzegovina Ltd Mostar, attn Mrs. Jasmina Olovcic, Sarajevo, tel +387 (0) 33 277 921. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=005357-2022. Ref.n. JPAC-1347-E-712/21. 02/22.
Restricted procedure, deadline 05/09/2022, for design and construction of a motorway on Corridor Vc, Section Ovcari - tunnel Prenj - Mostar North, 11 km subsection tunnel Prenj. The twin-tube motorway tunnel will be with two lanes in each tube (separated tunnel tubes with pedestrian and vehicular cross connections). For tender documents click here, where tenders must be sent . Value of the contract is EUR400 million, excluding VAT. Duration of contract 72 months. Contact Motorways of the Federation of Bosnia and Herzegovina Ltd Mostar, attn Mrs. Jasmina Olovcic, Sarajevo, tel +387 (0) 33 277 921. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=387814-2022. Ref.n. EIB-GtP/MOB 20180271-01. 29/22.
Restricted procedure, deadline 22/08/2022, for PIU (Project Implementation Unit ) support and E&S (Environmental & Social) monitoring consultant contract including procurement support for the procurement of tunnel and supervision works for the tunnel Prenj. For tender documents click here, where tenders must be sent. Value of the contract is EUR 4.5 million, excluding VAT. Duration of contract 96 months. Contact Motorways of the Federation of Bosnia and Herzegovina Ltd Mostar, attn Mrs. Jasmina Olovcic, Sarajevo, tel +387 (0) 33 277 921. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=410974-2022. Ref.n. EIB-GtP/MOB/JPAC 1430-E-769/22. 30/22.
The Joint Venture Elea iC d.o.o (Ljubljana), iC Consulenten ZT GmbH (Vienna), SEED Consulting Shpk (Tirana) and IBE d.d. (Ljubljana) secured the EUR 5,934,530.80 contract, excluding VAT, for Consultancy services for development of Preliminary Design with elements of Detailed Design for the works contract for Tunnel Prenj. Contact Motorways of the Federation of Bosnia and Herzegovina Ltd Mostar, attn Mrs Jasmina Olovčić, Sarajevo, tel +387 33277921, fax +387 33277901, email o.jasmina@jpautoceste.ba. Visit https://ecepp.ebrd.com/delta/viewNotice.html?displayNoticeId=24602414. Ref.n. JPAC-1347-E-712/21. 02/23.
