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Porto Tanger Med 2

Porto Tanger Med 2

Tanger Med 2 is the expansion of Tanger Med, a multipurpose deep-water seaport located a few kilometers east of Tangier, Morocco, facing Gibraltar.

The port expansion aims to increase the yearly capacity of the largest port in Africa by 5.2 million containers.

For this large infrastructure project, Dextra supported contractor Bouygues with a rebar splicing solution for the reinforcement of the caissons.

A Dextra forneceu seu Rolltec solution, which is AFCAB-certified, a requirement for this project. Two Rolltec machines were installed to support the threading activities, completing 360,000 threads in total (180,000 Rolltec couplers).

The couplers were used in the reinforcement of the caissons, which were as tall as 20 to 24 meters. The couplers provided:

  • Temporary openings to solve congestion issues in the reinforcement within the caisson, creating safe passages for men and equipment during the installation phase.
  • Horizontal wall-to-slab connections (from the inside of the caisson perimeter to the slab). For this application, couplers were left pending, allowing the slip form to go up.

MA Tanger Med 2 Case Study Rolltec MA Tanger Med 2 Case Study Rolltec1

Porto Autônomo de Pointe-Noire

Porto Autônomo de Pointe-Noire

Port Autonome de Pointe-Noire (PAPN) is a major seaport located on the Atlantic Ocean, part of the Republic of Congo. It is connected to the capital, Brazzaville, by a 500 km rail link and plays a vital role in regional development, facilitating trade with neighboring countries such as the Democratic Republic of Congo, Angola, and Gabon. With over 600,000 containers passing through annually, the port’s traffic continues to grow.

To support PAPN’s ambitious development plans, Dextra collaborated with contractor SAIPEM for the engineering and supply of steel structures for several of Pointe-Noire’s 16-meter-deep quays.

Between 2011 and 2012, Dextra supplied approximately 1,000 tons of Barras de gravata marítima in Grade 700, the highest in our range. These higher grades offer better performance-to-steel ratios, allowing smaller diameter bars, which result in savings in logistics and installation.

Dextra also provided Waling Beams installed onto the Combi Walls. These beams act as an interface between the steel walls and the large-diameter tie rods. Since the Waling Beams support the rods, their shape, spacing, and installation must be tailored to the tie rod configuration. To ensure compatibility and streamline the installation process, Dextra always recommends designing and delivering Waling Beams alongside the tie rod assemblies.

From 2015 to 2016, Dextra participated in a second phase of the project for the construction of Quay D.

Terminal de Contêineres MultiRio

Terminal de Contêineres MultiRio

The MultiRio Container Terminal, located in the Rio de Janeiro Port, specializes in the import/export of finished goods. To increase its shipping capacity by at least 50%, MultiRio launched an expansion project in 2012 to add extra quay length and accommodate more containers.

To support this pier expansion, Dextra partnered with contractor Andrade Gutierrez for the engineering and supply of Marine Tie Bars.

In 2014, Dextra supplied 100 tons of steel rods in medium diameters M56 and M59. The rods were anchored to the wall using swivel plates and nuts, allowing for 5° multidirectional adjustment.

These plates were positioned onto the waler beams, which were also supplied by Dextra. Waler beams are installed onto the sheet piles, and their design is directly influenced by the chosen Marine Tie Bars solution. For example, the spacing of the beams is impacted by the diameter of the bars and the angle of the rods.

tie rods waling

Between the wall, Hinge couplers were installed in line to allow for additional vertical tolerance. This was necessary to counteract ground settlement, which can occur over time due to the heavy cranes operating and the piles of stored containers. The Hinge couplers provided the flexibility needed to accommodate any vertical movement and ensure the stability of the structure.

Terminal Internacional de Carga Paradip (PICT)

Terminal Internacional de Carga Paradip (PICT)

Paradip International Cargo Terminal (PICT) is a multipurpose berth located at Paradip Port on India’s eastern coast, designed to handle clean cargo. The berth has a depth of 17.1 meters and a length of 450 meters, allowing it to accommodate cape-sized vessels up to 125,000 DWT. It will handle a range of cargoes including containerized goods, iron and steel products, fertilizer, food grains, and sugar.

Dextra supplied approximately 370 tons of Sistemas de barras de amarração marítimas, sizes M105 and M76, Grade 500, along with accessories like couplers, turnbuckles, swivel plates, and swivel nuts. These tie bar systems were used to secure the concrete diaphragm walls at both ends of the berth, ensuring the structural integrity of the terminal.

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Dextra Marine Tie Bars Application

With the new berth becoming operational in 2018, Paradip Port now boasts a total of 18 berths, including 13 cargo berths, 2 oil tanker berths, and 3 crude oil tanker berths with a single-point mooring system for handling crude oil tankers. This expansion significantly enhances the port’s capacity to handle a wide range of cargo and oil shipments.

Fontes das imagens: Canal do GRUPO JM BAXI no YouTube: https://www.youtube.com/watch?v=k9-VV3nlT58

Desenvolvimento Marinho do Porto Mugharraq

Desenvolvimento Marinho do Porto Mugharraq

Mugharraq Port, located 240 kilometers from Abu Dhabi, UAE, is undergoing a significant marine development project. The expansion includes extending the quay wall to 480 meters, deepening the facility to 8 meters, and adding six Ro-Ro ramps and additional berths to facilitate heavy lift operations.

Dextra supplied 407 tons of marine tie bars (size M103, grade 700) to connect the sea walls to the anchor walls.

This project aims to enhance the port’s infrastructure and service capabilities, better supporting offshore and mega projects in the oil and gas industry.

Fonte das imagens: https://wadeadams.com/projects/mugharraq-port-construction/

Porto de Altamira – Expansão do Terminal Múltiplo Uso

Porto de Altamira – Expansão do Terminal Múltiplo Uso

Altamira Port, located on the Gulf of Mexico in Tamaulipas, Mexico, is a key hub connecting with 125 ports worldwide. It handles a wide range of cargo, including liquid and dry bulk, petrochemicals, LNG, containers, and general cargo, serving an important industrial and economic region.

As part of its expansion to strengthen Mexico’s position as a global logistics platform, Dextra supplied 174 tons of grade 700 marine tie bars to anchor the sea walls during the project.

Additionally, Sonitec, a sonic tube solution, was used for CSL (crosshole sonic logging) testing of foundation piles in the quay. This technique ensures the structural integrity and homogeneity of concrete in the piles by measuring the speed of ultrasonic pulses.

Fonte das imagens: Manual do Porto de Altamira 2008-2009, produzido por Land & Marine Publications Ltd em nome da Administración Portuaria Integral de Altamira, SA de CV (API Altamira)

Porto Sète

Porto Sète

The Port of Sète, located on the Mediterranean Sea, is the largest fishing port in southern France and also serves numerous ferry routes to North Africa, including Tangiers. As part of its efforts to increase container capacity, the port is adding a new quay (Quay H), 15 meters deep, to improve both handling and storage of containers.

To support contractor Soletanche-Bachy in the construction of this new quay, Dextra engineered and supplied 74 large Barra de gravata marítima assemblies, the largest in our range at M160. These large-diameter assemblies reduce the number of sets required by increasing spacing between each rod.

The tie rods were anchored into the D-Wall using ball cages, which allow a 10° rotational angle in all directions. After excavation, the ball cages were opened to enable reconnection of the threaded ends of the rods.

Grand Paris Express – Linha 14

Grand Paris Express – Linha 14

O Grand Paris Express é um grande projeto de transporte urbano em andamento na capital francesa. O projeto adicionará quatro novas linhas (linhas 15, 16, 17 e 18) e estenderá duas linhas existentes (11 e 14).

A Dextra participou de diversos pacotes de estações por meio de seus parceiros distribuidores locais. Na Linha 14, em particular, a Dextra forneceu engates de vergalhões Fortec para as estações de Orsay e Pont Cardinet.

Para a estação de Bagneux, no norte de Paris, localizada na intersecção da linha 4 do metrô e da futura linha 15, a Dextra forneceu seus Âncoras ativas ASTEC.

Âncoras ativas ASTEC são a solução preferida para obras em estações de metrô, já que máquinas de perfuração de túneis e equipamentos de terraplenagem podem simplesmente cortar os cabos de PRFV das ancoragens em qualquer estágio, eliminando a necessidade de remoção de ancoragens, que é pouco confiável e dispendiosa. A solução foi aprovada para este projeto pela empresa de consultoria SYSTRA.

Após vários projetos bem-sucedidos no Oriente Médio, esta foi a primeira vez Âncoras ativas ASTEC (uma inovação recente da Dextra) foram instalados na Europa.

Nova ponte da baía de São Francisco

Nova ponte da baía de São Francisco

A New Bay Bridge foi um grande projeto de engenharia civil realizado entre 2002 e 2013. O objetivo do projeto era substituir dois segmentos da Bay Bridge que eram vulneráveis a terremotos por uma nova estrutura projetada para suportar forças sísmicas.

Neste projeto, a Dextra esteve envolvida em dois segmentos da renovação: a abordagem à Bay Bridge no lado de São Francisco e o segmento leste da Ilha Yerba Buena até Oakland.

A Dextra forneceu seu Bartec® Sistemas de barras com cabeça para este projeto. As barras com cabeça apresentam um disco de ancoragem montado na extremidade de uma barra de aço previamente preparada para o sistema Bartec®.

O uso de Barras com cabeça Oferece uma alternativa inteligente e compacta aos ganchos longos de vergalhões em áreas com muita armadura. Ao contrário das barras de gancho, as barras com cabeça são fáceis de instalar, pois as âncoras de extremidade podem ser simplesmente aparafusadas na armadura posteriormente, após a instalação.

Para a aproximação à Bay Bridge em São Francisco e ao segmento leste da Ilha Yerba Buena, as barras com cabeça Bartec® foram usadas para reforço de cisalhamento nas fundações das colunas, bem como nas dobradiças da ponte.

A solução Bartec® Headed Bars é aprovada pelo Caltrans (Departamento de Transporte da Califórnia) para todos os tamanhos de barras imperiais de #3 a #18 e também é certificada pelo ICC-ES.

Ponte Hanói Nhật Tân

Ponte Hanói Nhật Tân (Ponte da Amizade Vietnã – Japão)

The Nhat Tan Bridge is an impressive cable-stayed bridge spanning the Red River, located north of Hanoi. The total length of the project is 8.9 km, including the 3.75 km main bridge.

The bridge serves as a new gateway to Hanoi, significantly reducing travel time to Noi Bai International Airport, the second busiest airport in Vietnam by passenger volume.

The bridge was inaugurated by the Ministry of Transport of Vietnam and opened to the public on January 4, 2015. It has since been renamed the “Vietnam – Japan Friendship Bridge.”

Dextra has been involved in the Nhat Tan Bridge since the early stages of the project, supplying the widely used Bartec® rebar couplers, the leading rebar splicing solution in Vietnam. Bartec® connections were used in various parts of the project, including approaches, foundation piles, pile caps, and bridge segments.

Bartec® couplers offer a versatile rebar splicing solution, as the same standard coupler can be used for both standard connections (where the rebar rotates into the coupler) and position connections (where only the coupler rotates, useful when rebar rotation is not possible). Dextra supplied more than 130,000 connections in total for this project, enabling the lifting of heavy elements.

For the temporary operations of lifting and securing the precast girder segments, Dextra also supplied 36 tons of high-tensile PT bars.