O Metrô do Cairo é o sistema de trânsito rápido na Grande Cairo, Egito. Foi o primeiro de três sistemas de metro completos construídos em África, bem como o primeiro no mundo árabe. Começou a operar em 1987 como Linha 1 entre Helwan e Ramsis Square, cobrindo uma distância de 29 quilômetros.

O Metrô do Cairo tem atualmente 74 estações, 3 das quais são estações de transferência, com extensão total de 89,4 quilômetros em agosto de 2020. Existem três linhas em operação no sistema, numeradas de 1 a 3.

A nova Linha 4 irá da Estação Makram Ebeid até a Delegacia da Academia de Polícia perto do anel viário, com túneis perfurados seguindo a Rua Doutor Hassan El-Sherif e a Rua Ahmed El-Zomor. Serão 24 quilômetros de extensão no total. A construção começou no terceiro trimestre de 2019 e deverá ser concluída em 2024.

A Dextra forneceu 450.000 acopladores Bartec+ e 42 soft-eyes em GFRP para o reforço das paredes diafragma.

Bartec+ é um sistema de emenda mecânica com roscas paralelas para ligação de barras de armadura de concreto com diâmetros que variam de 12 a 50 mm (ASTM #4 a #18). A extremidade da barra roscada é testada quanto à tração em 90% de resistência ao escoamento do vergalhão.

O soft-eye GFRP da Dextra é uma solução integrada pronta para uso que usa reforço de polímero reforçado com fibra de vidro (GFRP) cortável como uma alternativa aos vergalhões de aço tradicionais, permitindo a penetração de máquinas de perfuração de túneis (TBM) para passar pelas paredes do diafragma com facilidade .

The Lucknow Metro project is built to serve growing population of Uttar Pradesh, North India, as well as to serve the areas that are not connected by the existing rail system. The 35-kilometer rail system comprises 22 stations, of which 19 will be elevated.
The first phase of the project consists in construction of 2 rail lines (North- South and East-West corridor), connecting four corners of Lucknow by running through the heart of the city. Being implemented by Lucknow Metro Rail Corporation (LMRC), the Phase 1 comprises the construction of 22.88-kilometer long North-South corridor. The priority section is 8.5 kilometers, linking Transport Nagar to Charbagh.
Once operational, the Lucknow Metro will help ease the traffic in the city, and will also reduce commuters’ travel time.

Brussels Metro is a rapid transit system that serves a large portion of the Brussels, Capital Region of Belgium. It consists of 4 conventional metro lines and 3 pre-metro lines.

Line 3 is tram line that runs through the city center from Churchill in the south to Esplanade in the north, using the North-South Axis tunnel. The total route will be 10.3km long.

An 150m long new tunnel is being dug underneath the Brussels North railway station to connect two existing underground tunnels. It will be an important component of the new metro link.

Dextra supplied Sonitec, a tube solution invented to facilitate the integrity testing of foundations using the CSL testing method, to the construction site of Line 3. 13 kilometers of the tubes were installed in the 18m long pile cages.

Sonitec system have been designed for the sole purpose of facilitating the assembly and installation of long tube lengths in reinforcement cages.

The 37km-long Light Rail Transit Line 3 (LRT3) is a light rail line under development in Malaysia. It includes a 35km viaduct and a 2km underground tunnel and it will link Bandar Utama with Johan Setia in Klang.

Developed in line with the Greater Kuala Lumpur/Klang Valley (GKL/KV) Land Public Transport Masterplan, LRT3 will play a strategic part in extending rail connectivity to the Western Corridor of GKL/KV.

Dextra provided cuttable Glass Fiber Reinforced Polymer (GFRP) soft-eye solutions installed in diaphragm walls of escape shafts, in order to facilitate the underground tunnel breakthrough by Tunnel Boring Machines (TBM).

The LRT3 project is expected to serve 2-million people across the alignment by improving connectivity, alleviating traffic congestion and stimulating economic growth along the Western Corridor of Klang Valley, from Klang to Petaling Jaya.

The construction is scheduled for completion by February 2024.

A Linha 3 do Metrô do Panamá é uma linha de monotrilho de 34 km de extensão que está sendo desenvolvida como parte do projeto do metrô do Panamá. Será o maior projeto do país desde a ampliação do Canal do Panamá.

A linha estabelecerá uma conexão entre a província do Panamá Oeste e a província do Panamá, reduzindo pela metade o tempo médio de viagem, de 90 minutos para 45 minutos. O sistema monotrilho será o primeiro a utilizar tecnologia japonesa nas Américas.

A Dextra forneceu 260.000 acopladores Bartec para a coluna de estacas da estrutura elevada do monotrilho e a conexão da viga pré-moldada.

Os tubos Sonitec também foram usados para examinar a integridade estrutural do concreto usando o método de teste de perfilagem sônica de furo cruzado.

Com início de operação previsto para meados de 2025, a linha beneficiará mais de 500 mil moradores da província do Panamá Oeste.

Crédito da imagem: canal da Línea 3 del Metro de Panamá no YouTube, www.elmetrodepanama.com

The Lima Metro is a rapid transit system in Peru, currently linking Villa El Salvador district in the south of Lima with San Juan de Lurigancho, in the northeast area of the city. The Metro Line 1 started its operation in 2011 with 26 stations, making a total of 34.6 kilometers, the longest metro line in the Americas.

Dextra participates in the construction of Metro Line 2 and the first stage of Line 4 that began simultaneously in 2016. Line 2 is a 27-km underground line, linking Ate district (Lima) and the Callao region adjoining the capital. Line 4 is an 8-km section that will link Line 2 with Jorge Chavez International Airport station.

More than 160,000 Rolltec rebar couplers have been provided to the Metro construction site to avoid rebar congestion of the traditional overlapping method.

Several types of Rolltec couplers were installed in various parts of the stations’ structures, including standard couplers size #8, #11 and #14, and transition couplers size #8 and #11.

The full line will be operational in 2024.

Etihad Rail is a 1,200-kilometer railway project that will be the first national freight and passenger railway network in the United Arab Emirates (UAE), connecting the seven emirates and promoting trade and social development in the Emirate and across the GCC countries.

The railway project is expected to be a sustainable alternative for freight and passenger transportation throughout the Emirate’s urban and rural areas. It is expected to carry approximately 16 million passengers and 50 million tons of cargo. It will make a significant contribution to lowering road traffic emissions.

The Etihad Rail network reaches the borders of Qatar and Saudi Arabia in the west. The western section connects to Saudi Arabia via Ghweifat, while the eastern section connects to Oman via Al Ain. The railway line connects Abu Dhabi, Sharjah, and Dubai and runs across the Emirate. Then it goes on to the northern emirates and Fujairah.

The rail network will be built in 3 stages. The first phase of the railway network, which opened in 2016, is a 266-kilometer-long western stretch between Al Ruwais and Shah. It connects Ruwais and Habshan, and then Habshan and Shah.

The second phase connects Abu Dhabi with Dubai. It is also linked to the ports of Jebel Ali, Musaffah, and Khalifa. The third phase entails connecting the northern Emirates. The second and third phases are scheduled for completion in 2024.

Dextra is currently supplying various engineered solutions for the second phase of rail network construction, which includes the construction of a 200km main line in Abu Dhabi and a 40km branch line to Khalifa port, a 78km main line in Dubai and a 20km branch line to Jebel Ali port, a 98km main line from Sharjah to Fujairah and a 29km branch line to Tawyeen, as well as associated facilities.

These solutions were delivered to the railway tunnel construction site.

Source of top image: https://filipinotimes.net/news/2019/12/19/coming-soon-rail-network-linking-dubai-fujairah-khorffakan-ports/

The Sha Tin Sewage Treatment Works Relocation project is a project to relocate the Sha Tin Sewage Treatment Works (STW) in Sha Tin, Hong Kong, which is currently located at the mouth of the Shing Mun River, to the cavern site at Nui Po Shan of A Kung Kok on the opposite bank, freeing up the existing site for uses beneficial to people’s livelihood and improving the local living environment.

The future Sha Tin Cavern STW will be the largest of its kind in Hong Kong, occupying 14 hectares of land. It will have the same treatment capacity as the current one, but will use advanced sewage treatment technology to meet local population demands and improve services for residents.

For the tunneling works, Dextra has supplied around 800 pieces of GEOTEC™ GFRP rock-bolts for the tunnel’s temporary supporting.

GEOTEC™ GFRP rock-bolts are made of cut-able glass fiber reinforced polymers, making them perfect for face bolting or any other tunneling and mining application where further excavation is required.

Source of images: https://ststwincaverns.hk/

A Circle Line (CCL) é uma linha subterrânea de Mass Rapid Transit em Cingapura. A linha de 35 km e 30 estações vai de Dhoby Ghaut e Marina Bay, na área central, até HarbourFront, no sul.

É uma das linhas de trânsito rápido sem condutor mais longas do mundo.

Em 2013 foi anunciada a etapa 6 da Circle Line, uma extensão de 4 km para finalmente fechar o círculo do CCL conectando a estação HarbourFront à estação Marina Bay.

Três estações adicionais estão em construção e deverão estar operacionais em 2025.

Experiência reconhecida e qualidade em soluções de reforço de concreto foram necessárias para enfrentar este projeto, e os acopladores Bartec da Dextra foram escolhidos para diversas partes da estrutura da Circle Line, incluindo barras iniciais, lajes e juntas de pilares.

Ao final do projeto, aproximadamente 200 mil acopladores serão entregues no local.

Além disso, a Dextra forneceu 3.000 m de vergalhões de polímero reforçado com fibra de vidro (GFRP), que podem apresentar alguns benefícios importantes em relação aos vergalhões de metal: peso mais leve, sem risco de corrosão e menor suscetibilidade a raios.

Além disso, a Dextra foi encarregada do reforço da estrutura de concreto dos túneis: 8 Astec Soft-Eyes foram utilizados para facilitar a penetração das Tunnel Boring Machines (TBM) através das paredes diafragma, graças à sua inovadora estrutura cortável em GFRP.