Seit der Eröffnung des ersten 29 km langen Abschnitts der U-Bahn-Linie 1 im Jahr 1987 hat das U-Bahn-Projekt Kairo das Verkehrssystem der Hauptstadt revolutioniert.
Derzeit umfasst das gesamte Netzwerk drei Betriebslinien, die von 1 bis 3 nummeriert sind. Linie 3 besteht aus vier Phasen, und das erste Segment wurde 2012 in Betrieb genommen.

Am 15. Juni 2019, eine Woche vor dem Start des Afrikanischen Nationen-Pokals 2019 (AFCON) in Kairo, wurden im Rahmen der vierten Phase der dritten Linie drei neue U-Bahn-Stationen eröffnet.

Dextra hat seit dem Betrieb der Linie 2 im Jahr 2000 kontinuierlich Baulösungen bereitgestellt und seitdem mehr als Folgendes geliefert:

-1.400.000 Bewehrungskupplungen

-7.000 Schallröhren

-60 weiche Augen

Bartec-Bewehrungskupplungen werden zur Bewehrungsverstärkung von Tunnel- und Bahnhofskonstruktionen sowohl auf U-Bahn- als auch auf Hochbahnstrecken eingesetzt, um den Stahlstau zu reduzieren und die Zugverbindung zu verbessern.

Darüber hinaus wurde die Integritätsprüfung der Metrofundamente mithilfe der Testmethode Cross Sonic Logging (CSL) durch den Einsatz von SONITEC-Schallrohren erleichtert, die für eine einfache Montage und Installation in Bewehrungskörben ausgelegt sind.

Die ASTEC-Soft-Eyes von Dextra bestehen aus GFK-Bewehrungsstäben zur Verstärkung von D-Wänden in unterirdischen Tunneln, die problemlos mit einer Tunnelbohrmaschine (TBM) geschnitten werden können, was zu Zeit- und Geldeinsparungen führt.

Das Projekt ist noch im Gange und die vierte Linie der Kairoer Metro soll 2020 ihren Betrieb aufnehmen.

Die U-Bahn-Linie 1 von Ho-Chi-Minh-Stadt ist der erste Teil des 109 Kilometer langen Eisenbahnprojekts der Megacity, das von der Management Authority for Urban Railways (MAUR) durchgeführt wurde.

Sobald das Nahverkehrssystem erreicht ist, wird es die HCMC-Gebiete mit sechs U-Bahn-Linien abdecken, sodass Einwohner und Touristen einfach und bequem durch die Stadt pendeln können, was zu einer besseren städtischen Lebensqualität führt.

Die erste Phase des Projekts besteht im Bau einer 19,7 Kilometer langen Eisenbahnlinie, die den Ben-Thanh-Markt und den Suoi-Tien-Park verbindet. Dazu gehört auch der Bau einer 17,1 Kilometer langen Hochbahn mit 11 Stationen und einer 2,6 Kilometer langen U-Bahn-Linie mit 3 Stationen.

Für den Bau der größten Stadt Vietnams lieferte Dextra sowohl Betonbewehrungs- als auch Stabsystemlösungen.
Um den Stahlstau in stark verstärkten Bereichen zu reduzieren, entschied sich der Auftragnehmer Shimizu-Maeda Joint Operation für die Endanker von Dextra. Headed Bar ist eine einfache Alternative zu Bewehrungshaken.

Die Montage erfolgt durch ledigliches Aufschrauben der Kompaktankerplatte auf das Ende des Bewehrungsstabes. Letztendlich erleichtert die Lösung den Prozess und führt zu einer besseren Betonierqualität.

The Grand Paris Express is currently the largest transport project in development in Europe.

The new 200-km, 68-station automated railway network consists of a ring route around Paris (line 15) and three additional lines (16, 17 and 18) connecting adjacent neighborhoods.

These 4 new lines will circle the capital and link to 3 airports and many business districts. It will transport 2 million commuters a day. The lines are planned to open in stages, with the full completion of the project scheduled for 2030.

The construction of line 15 started in 2015, with its first section between Pont de Sèvres Métro station and Noisy – Champs RER A station.

Dextra was involved at that stage by providing 100,000 Fortec rebar couplers to connect the columns of the stations’ structure.

Additionally, Dextra supplied 15,000 meters of Sonitec sonic tubes to facilitate the structural integrity testing using the CSL (Cross Sonic Logging) method, thus ensuring the homogeneity of concrete within the deep piles and diaphragm walls that are being constructed for the future underground stations.

The first section of line 15 is scheduled to open in 2020.

The Red Line is the first section of the new Light Rail system currently in development in Tel Aviv, Israel. The line will run from Bat Yam in the southwest to Petah Tikva in the northeast.

The total projected length of the line is 24km, comprising 34 stations, 10 of which are underground, including an interchange with Israel Railways services.

For this project, Dextra is currently supplying products for the construction of six of the underground stations including Bialik, Abba Hillel, Arlozorov, Shaul HaMelech, Yehudit and Allenby.

More than 200,000 Bartec rebar couplers were supplied for diaphragm walls and for the construction of the station boxes.

Dextra also provided 50,000m of Sonitec ST50 to facilitate the testing of the structural integrity of foundation piles using the CSL (Crosshole Sonic Logging) method.
Sonitec is an easy-to-assemble and time-saving sonic tube solution, preferred among piling and general contractors worldwide for more than 20 years.

The line is currently scheduled for completion in October 2021, making it the second underground service operating in Israel.

The Malaysian SSP Line is the second line of Klang Valley’s MRT System. The main purpose of this project is to provide a better railway infrastructure and transport system in order to serve Malaysia’s growing population.

Commuting through the heart of the Capital

The Malaysian SSP Line will connect Sungai Buloh to Putrajaya, running through the center of Kuala Lumpur and its suburbs. With its 35 stations, among which 11 will be providing connections to other lines, the SSP Line will allow commuters to transfer with ease to and from existing and planned rail lines.
The rail transit system involves the construction of more than 52 km: 13.5km of underground line and a 38.7km of elevated rail. Once operational, it is expected to have a ridership of 529,000 passengers per day.

Rebar couplers for D-wall and slab

For this large metro project, the contractor joint venture MMC-Gamuda has chosen Dextra’s popular rebar reinforcement solution Bartec, supported by 3 sets of bar-end high-productivity equipment. Approximatively 200,000 pieces have been delivered as of April 2018.
Dextra Bartec have been used for productivity reasons. Couplers were embedded in the diaphragm walls surrounding the underground stations, providing horizontal connection points at a later stage of the project. After excavation, couplers are used to connect bars and start the station’s slabs.

For more information about our solutions in Malaysia, please contact Dextra’s Kuala Lumpur office.

The Ahmedabad-Gandhinagar Metro Rail Project is a new mass-transit rapid transit system in Gujarat, West India. The project is being implemented by Metro Link Express for Gandhinagar and Ahmedabad (MEGA) and aims to meet the city’s growing population while providing commuters with a better transport system.
The total length of the metro’s first phase is 39.26 km, with 33.26km of elevated section and 6 kilometers underground. The metro will connect suburbs in Ahmedabad along east-west and north-south axis, and the route will also be extended to Gandhinagar in Phase-2.
The construction of the first phase, comprising 32 stations connecting the four corners of the city, has been undergoing since 2015. Being expected to operate in 2020, the first trial run of the metro line is scheduled for January 2019.

Steel sonic logging tubes for concrete integrity tests

For the first phase of the Ahmedabad metro, Dextra is involved in supplying its CSL solution Sonitec for the 6-kilometer long viaduct. Sonitec is Dextra’s sonic logging tube system for Cross-hole sonic logging tests. CSL method allows the contractors to verify the homogeneity of concrete in D-walls, bored piles, drilled shafts, barrettes or in concrete piles. Sonitec helps facilitate the assembly and installation of long tubes in reinforcing cages by its Instant Connection characteristic. Thanks to its large bell-mouth, the tubes can be easily connected seamlessly.

The MRT Pink Line & Yellow Line are elevated mass rapid transit line being built and operated by the BSR joint venture (BTS Group Holdings, Sino-Thai Engineering and Construction STEC, and Ratch Group RATCH) in Bangkok, Samut Prakan, and Nonthaburi Provinces, Thailand.

The MRT Pink Line monorail will be 34.5 kilometers long and have 30 stations. It will connect the northern districts of Bangkok and Nonthaburi with 5 mass transit lines that run along a key east-west transportation route.

The 30.4-kilometer Yellow Line will have 23 stations and will connect 6 other mass transit lines. It will provide mass transit along the heavily congested Lat Phrao road and Srinagarindra road corridors.

Dextra was involved in these 2 MRT line extension projects by providing Bartec splicing systems. More than 440,000 pieces of the couplers, size 16-32mm, were installed inside connecting slabs to connect guideway beams.

In addition, the contractor chose Dextra’s Headed Bars as an alternative to rebar hooks to avoid steel congestion in severely reinforced areas such as beam-column connections. Around 530,000 small headed bars were supplied to the construction sites.

The MRT Pink Line is expected to be operational by June 2022, with the Yellow Line following a year later.

Udhampur-Srinagar-Baramulla Rail Link (USBRL) is a gigantic infrastructure project by Indian Railways in the Himalayan Mountains, designed to provide rail connectivity to Jammu and Kashmir valleys. This project aims to enable access to the rail network from all parts of the country and connect faraway areas with the rest of India, in response to Prime Minister’s vision of a New India by 2022.

The project is divided into three sections – the 25 km Udhampur-Katra, the 129 km Katra-Qazigund and the 118 km Qazigund-Baramulla tracks. Parts of the lines have already been completed and made operational.

For this massive project, Dextra supplied 3,000 sets of Self-Drilling Rock Bolts to stabilize loose rock mass after excavation.
The Self-Drilling Rock Bolt is a bolting solution for unstable ground conditions and fractured rock formations. The loosening of the rock strata is prevented by drilling a hole in the rock, placing standard sacrificial drill bit and a hollow bar (made of steel or FRP): cementitious grout is then injected into the hollow bar.

As the mega infrastructure project nears completion, the USBRL will link Jammu with Kashmir, opening up a new page for the Indian transportation system.