Grupo Dextra | Conexiones confiables

Puerto Tánger Med 2

Puerto Tánger Med 2

Tanger Med 2 es la ampliación de Tanger Med, un puerto marítimo de aguas profundas multipropósito situado a pocos kilómetros al este de Tánger, Marruecos, frente a Gibraltar.

La ampliación del puerto tiene como objetivo aumentar la capacidad anual del puerto más grande de África en 5,2 millones de contenedores.

Para este gran proyecto de infraestructura, Dextra apoyó al contratista Bouygues con una solución de unión de barras de refuerzo para el refuerzo de los cajones.

Dextra suministró su Rolltec Solución certificada por AFCAB, requisito indispensable para este proyecto. Se instalaron dos máquinas Rolltec para apoyar las actividades de roscado, completando un total de 360.000 roscas (180.000 acopladores Rolltec).

Los acopladores se utilizaron para reforzar los cajones, cuya altura oscilaba entre 20 y 24 metros. Los acopladores proporcionaron:

  • Aberturas temporales para solucionar problemas de congestión en el refuerzo dentro del cajón, creando pasos seguros para hombres y equipos durante la fase de instalación.
  • Conexiones horizontales de muro a losa (desde el interior del perímetro del cajón hasta la losa). Para esta aplicación, se dejaron los acopladores pendientes, lo que permitió la elevación del encofrado deslizante.

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

Puerto autónomo de Pointe-Noire

Puerto autónomo 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 Pasadores de corbata marinos 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 Contenedores MultiRio

Terminal de Contenedores 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 de carga internacional de Paradip (PICT)

Terminal de carga internacional de 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 amarre marinas, 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.

Fuentes de las imágenes: JM BAXI GROUP Canal de YouTube: https://www.youtube.com/watch?v=k9-VV3nlT58

Desarrollo marino del puerto de Mugharraq

Desarrollo marino del puerto de 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 barras de corbata marinas (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.

Fuente de las imágenes: https://wadeadams.com/projects/mugharraq-port-construction/

Puerto de Altamira – Ampliación Terminal de Usos Múltiples

Puerto de Altamira – Ampliación Terminal de Usos Múltiples

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 barras de corbata marinas to anchor the sea walls during the project.

Additionally, Sonitec, a sonic tube solution, was used for CSL (registro sónico de pozos cruzados) 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.

Fuente de imágenes: Manual del Puerto de Altamira 2008-2009, elaborado por Land & Marine Publications Ltd en nombre de Administración Portuaria Integral de Altamira, SA de CV (API Altamira)

Puerto de Sete

Puerto de Sete

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 Pasador de corbata marino 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 – Line 14

Grand Paris Express – Line 14

The Grand Paris Express is a major urban transport project taking place throughout the French capital. The project will add four new lines (lines 15, 16, 17, and 18) and extend two existing lines (11 and 14).

Dextra has been involved in several station packages through its local distributor partners. On line 14 in particular, Dextra supplied Fortec rebar couplers in the stations of Orsay and Pont Cardinet.

For Bagneux Station in the north of Paris, located at the intersection of metro line 4 and the future line 15, Dextra supplied its ASTEC Active Anchors.

Anclajes activos ASTEC are the preferred solution for subway station works as tunnel boring machines and earth-moving equipment can simply cut the FRP tendons of the anchors at any stage, eliminating the need for unreliable and costly anchor removal. The solution was approved for this project by the consulting firm SYSTRA.

Following numerous successful projects in the Middle East, this was the first time Anclajes activos ASTEC (a recent Dextra innovation) were installed in Europe.

Nuevo Puente de la Bahía de San Francisco

Nuevo Puente de la Bahía de San Francisco

El Nuevo Puente de la Bahía fue un gran proyecto de ingeniería civil realizado entre 2002 y 2013. El objetivo del proyecto era reemplazar dos segmentos del Puente de la Bahía que eran vulnerables a los terremotos con una nueva estructura diseñada para soportar fuerzas sísmicas.

Para este proyecto, Dextra participó en dos segmentos de la renovación: el acceso al Puente de la Bahía en el lado de San Francisco y el segmento este desde la isla Yerba Buena hasta Oakland.

Dextra suministró su Bartec® Sistemas de barras con cabeza para este proyecto. Las barras con cabeza cuentan con un disco de anclaje montado en el extremo de una varilla de refuerzo previamente preparada para el sistema Bartec®.

El uso de Anclajes finales Ofrece una alternativa inteligente y compacta a los ganchos largos para varillas de refuerzo en zonas con mucha carga de refuerzo. A diferencia de las barras de gancho, las barras con cabeza son fáciles de instalar, ya que los anclajes de extremo se pueden atornillar fácilmente al refuerzo posteriormente, una vez instalado.

Para el acceso al Puente de la Bahía de San Francisco y el segmento este de la Isla Yerba Buena, se utilizaron barras con cabeza Bartec® para refuerzo de corte en las cimentaciones de las columnas así como en las bisagras del puente.

La solución de barras con cabeza Bartec® está aprobada por Caltrans (el Departamento de Transporte de California) para todos los tamaños de barras imperiales de #3 a #18 y también está certificada por ICC-ES.

Puente Nhật Tân de Hanoi

Puente Hanoi Nhật Tân (Puente de la Amistad Vietnam – Japón)

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 Barras PT.