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Tanger Med 2 Port

Tanger Med 2 Port

Tanger Med 2 is the expansion of Tanger Med, a multipurpose deep-water sea port located in a few kilometers East from Tangier, in Morocco, facing Gibraltar.

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

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

Dextra supplied its Rolltec solution, which is AFCAB-cerfified, a requirement on this project. Two Rolltec machines were installed to support the threading activities: 360,000 threads in total (180,000 Rolltec couplers).

Couplers were use in the reinforcement of the caisson, which were as tall as 20 to 24 meters. Couplers provided:

 

  • Temporary openings to solve congestion issues in the reinforcement within the caisson. Rebar couplers allow to create a safe passage for men and equipment during installation phase.
  • Horizontal wall-to-slab connections (from the inside of the caisson perimeter to 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

 

For more information and additional applications examples on this project, please refer to our dedicated Case Study.

image03

Download case study

Port Autonome de Pointe-Noire

Port Autonome de Pointe-Noire

Port Autonome de Pointe-Noire is a large sea port opened to the Atlantic Ocean and part of the Republic of Congo. The port is connected to the country capital Brazzaville by a 500km rail link.

The seaport plays an important part in the development of the region and contributes to the growth of trade with neighboring countries (Democratic Republic of Congo, Angola, Gabon). More than 600,000 go each year through the port of Pointe-Noire, a figure in constant growth.

To support the ambitious development plan of PAPN, Dextra has been working with contractor SAIPEM for the engineering and supply of the steel structures behind several of Pointe-Noire 16-meters deep quays.

Between 2011 and 2012 for the construction of Quay G, Dextra supplied more approximately 1,000 tons of Marine Tie Rods in Grade 700, the highest in our range. Higher grades offer a higher performance/steel ratio, allowing to pick smaller diameter bar which ultimately provide saving in logistics and installation efforts.

Dextra also supplied the Waling Beams installed onto the Combi Walls. Waling beams act as an interface between the steel walls and the large diameter tie rods. As Waling Beams support the rods, their shape, spacing and installation is very dependent of the tie rods configuration. To guarantee full compatibility and ensure the smooth sequence of installation operation, Dextra always recommend to design and deliver waling beams together with the tie rods assembly.

Later between 2015 and 2016, Dextra participated to a secound round of project delivery for the construction of the Quay D.

MultiRio Container Terminal

MultiRio Container Terminal

The MultiRio Container Terminal is a large container terminal located in the Rio de Janeiro Port. The terminal specializes in the import/export of finished goods.

MultiRio plans to increase its shipping capacity by at least 50% and launch in 2012 an expansion project aiming at adding extra quay length to its infrastructure in order to receive additional port containers.

To support the pier expansion of MultiRio, Dextra has been working with contractor Andrade Gutierrez for the engineering and supply of Marine Tie Rods.

Dextra supplied in 2014, 100 tons of steel rods coming in medium diameters M56 and M59. The rods were anchored to the wall by the use of swivel plates and nuts, which conveniently allow 5° multidirectional adjustment.

Plates are positioned onto the Waling beams, also supplied by Dextra. Waling beams are installed onto the sheet piles. Their design is directly impacted by the Tie Rods solution chosen as for example spacing of the beams will be impacted by the diameter of the bar and angle of the rod.

tie rods waling

Between the wall, Hinge couplers were installed in line to allow for additional vertical tolerance as sometimes required to counter the ground settlement efforts sometimes caused over times with heavy cranes operating and piles of stored containers.

Paradip International Cargo Terminal (PICT)

Paradip International Cargo Terminal (PICT)

Paradip International Cargo Terminal (PICT) is a multipurpose berth to handle clean cargo at Paradip Port, located on the eastern coast of India, between Kolkata and Visakhapatnam.

The depth of the berth is 17.1 meters with a length of 450 meters, which will facilitate handling of Cape-sized vessels up to 125,000 DWT.

The multi-purpose berth will be utilized for handling containerized traffic, including non-hazardous and dust-free cargoes such as iron and steel products, finished fertilizer, food grains and sugar.

Dextra supplied approximately 370 tons of Marine Tie Bar systems, sizes M105 and M76, grade 500, along with accessories: couplers, turnbuckles, swivel plates, swivel nuts, swivel plates with angle seating.

The tie bar systems were used to connect with concrete diaphragm walls at both ends, in order to retain the berth structure.

Dextra Marine Tie Bars Application

With the new berth becoming operational in 2018, the port is having a total of 18 berths: 13 cargo berths, 2 oil tanker berths and 3 crude oil tankers and single-point mooring for handling of crude oil tankers.

Sources of images: J M BAXI GROUP YouTube Channel: https://www.youtube.com/watch?v=k9-VV3nlT58

Mugharraq Port Marine Development

Mugharraq Port Marine Development

Mugharraq Port is a strategic harbour located 240 kilometers from Abu Dhabi, United Arab Emirates.

The marine development project includes extending the quay wall up to 480 meters with additional berths, deepening the facility to 8 meters, and developing six additional Ro-Ro ramps and extra berths to enable heavy lift operations.

Dextra provided 407 tons of marine tie bars in size M103, grade 700 to connect sea walls to anchor walls.

The project aims to enhance Mugharraq Port’s infrastructure and service capabilities so that it can better support offshore and mega projects in the oil and gas industry.

Source of images: https://wadeadams.com/projects/mugharraq-port-construction/

Altamira Port – Multiple Use Terminal Expansion

Altamira Port – Multiple Use Terminal Expansion

Altamira Port is located on the shores of the Gulf of Mexico in Altamira Tamaulipas and connects with 125 ports across the world. The port services an important area of economic and industrial activity in the country. It handles liquid and dry bulk, petrochemicals, LNG, container, and general cargo.

The expansion of the multiple use terminal of the Altamira Port is part of the plan to make Mexico a global logistics platform. Dextra marine tie bars were chosen to anchor sea walls during the expansion. 174 tons of tie bars in grade 700 were supplied.

Moreover, Sonitec, a sonic tube solution, was used for the CSL (crosshole sonic logging) testing of foundation piles of the quay. It facilitates the structural integrity and homogeneity of concrete within the piles by measuring the speed of ultrasonic pulses.

Source of images: Altamira Port Handbook 2008-2009, produced by Land & Marine Publications Ltd on behalf of Administración Portuaria Integral de Altamira, SA de CV (API Altamira)

Sète Port

Sète Port

The Port of Sète is a large sea port opened to the Meditteranean Sea. It is the largest fishing port in the South of France. It also serves many ferry connections towards Tangiers and other destinations in North Africa.

Sète Port and its main sponsor, Region Languedoc Rousillon, wish to increase the container capacity of the port by adding a new quay (Quay H, 15 meters deep) to their existing infrastructure. The new quay will increase both handling and storage capacity of containers.

To support contractor Soletanche-Bachy in the construction of this new structure, Dextra engineered and delivered 74 Marine Tie Rods assemblies. The tie rods systems delivered are the largest currently available in our range: M160.

Large diameter assemblies allow to reduce the number of sets which need to be installed by increasing the spacing between each rod.

The long tie rods assemblies were anchored into the D-Wall by the installation of ball cages, which allow a rotation angle of 10° in all directions.

The Ball Cages were installed into reinforcement of the D-Wall and cast in concrete. After excavation, ball cages were open to allow the reconnection of the threaded ends of the rods.

MahaNakhon Tower

MahaNakhon Tower

MahaNakhon Tower is a 77-storey skyscraper in Bangkok. With a height of 314 meters, it became in 2016 Thailand’s tallest building. MahaNakhon is located in Silom, the busiest business district of Bangkok, right above the BTS Skytrain station Chong Nonsi. The project is owned by developer PACE and has been built by Bouygues-Thai.

Foundations

Foundations are always a challenge in Bangkok. The city being built on sands and humid soils, foundations must be deep and most projects feature thick D-Walls to prevent water from leaking in.

For the D-Walls of MahaNakhon, Dextra supplied rebar couplers used in the D-Walls. The couplers were mounted on hook bars, installed horizontally and cast in concrete. This typical application allow to reconnect bars to the D-Wall at at a later stage when starting the slab reinforcement.

Finally, Headed Bars were also installed in the thick foundation matt. Headed bars are an advantageous substitute to hooks in congested areas, they provide high performance anchorage and are easier to install.

Superstructure

The tower is built around a corewall, erected with slip formwork, surrounded by 12 megacolumn. To connect the columns with the corewall, Dextra supplied Bouygues-Thai with its renowned Bartec solution. Bartec couplers, installed flush with the formwork and cast in concrete, allow second phrase reconnection of bars to bridge the column and the corewall.

In the mega columns, rebar couplers were also used to perform bar-to-bar vertical connecitions.

Skybar

Finally, Dextra provided Tension Bar Systems in the rooftop skybar. Tension Bars can be easily installed with their fork ends and provide an aesthetic anchorage system.

For more information about Dextra solutions for MahaNakhon, a case study with photos is also available.

mahanakhon_tower_case_study

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Grand Paris Express

Grand Paris Express

The Grand Paris Express is a major urban transport project taking place all around the French Capital. The project will add 4 new lines (lines 15, 16, 17 and 18) and extend two existing lines (11 and 14).

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

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

ASTEC Active Anchors are the preferred solution for subway stations works as Tunnel Boring Machines and earth-moving equipment can simply cut the anchors’ FRP tendons at any stage, eliminating any need of unreliable and costly removal of anchors. The solution was approved for this project by consulting firm SYSTRA.

After numerous successful projects in the Middle East, this was the first time ASTEC Active Anchors (a recent Dextra innovation) were installed in Europe.

New Bay Bridge of San Francisco

New Bay Bridge of San Francisco

The New Bay Bridge is a large civil engineering project taking place between the years 2002 and 2013. The aim of the project was to replace two segments of the Bay Bridge vulnerable to eathquakes by a new structure designed to withstand seismic efforts.

For that project, Dextra was involved on two segments of the renovation project: the approach to Bay Bridge on the San Francisco side, and the Eastern segment from the Island of Yerba Buena to Oakland.

Dextra supplied for this project its Bartec Headed Bar systems. Headed Bars are an anchor disc mounted on the end of a rebar previously prepared for the Bartec system.

The use of Headed Bars provides an smart and compact alternative to long rebar hooks in areas where the reinforcement is particularly congested. Unlike hook bars, Headed Bars are particularly easy to install, as end anchors can just be screwed onto the reinforcement at a later stage, after the reinforcement is installed.

For the approach to the Bay Bridgee in San Francisco and the Yerba Buena Eastern Segment, Bartec Headed Bars were used for the shear reinforcing of the column foundations, as well as in the bridge hinges.

The Bartec Headed Bars solution is approved by CALTRANS, the California Department of Transportation, for all imperial bar size #3 to #18. and is also certified by the ICC-ES.

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