Airports Archives

Passenger Terminal Expansion Works

RiotSpace Creative June 7, 2021

The Hamad International Airport terminal expansion project will include an additional 140,000 sq.m terminal building, located airside, adjoining the existing terminal building through Concourse C with an axis that will culminate into a central garden. It will include a new transfer area which will help shorten passenger’s connection time and will improve their overall transfer experience at HIA. This will also contribute to servicing the continued growth of HIA’s national carrier Qatar Airways.

The Passenger Terminal Expansion Works, Central Concourse Building and Early Works (PTEW) was awarded to the joint venture of Midmac Contracting, TAV Tepe Akfen Investment Construction and Taisei Corporation on November 2019.

The scope of work consisted of:

Central Concourse Expansion Building and Apron Works
Diversion of existing utilities
Demolition of existing Fixed Jet Bridges
Underground Automated People Mover Station Box

Remote Underground Chilled Water network connecting Central Utility Plants

Scope of dewatering works is consist of the construction of APM Box, Cup 2 & Cup 4 connection and Central concourse (Pile caps). The APM box structure is composed of a 151.2m long by 25m wide with 2 nos. of monitoring well and 14 nos. of deepwells at the depth of 27m BGL. For Central concourse (Pile Caps) is composed of a 4m long by 4.4m wide with sump pumping technique is implemented and for CUP 2 & CUP 4 connection which is composed of 100m long by 9.4m wide consisting of sump pumping using surface suction diesel pump technique supplementary with trenching system.

The groundwater level encountered at the range of +0.39m QNHD and -1.19m QNHD at West and East of existing Concourse and the groundwater level at APM area is found in the range of -0.78m QNHD and -1.42m QNHD.

The system is supplied complete with pumps with standby units, power supply system, control panels with suitable alarm system and 24hr monitoring team.

LOCATION: Hamad International Airport, Doha, Qatar (25.2609° N, 51.6138° E)
CLIENT: Qatar Company for Airports Operation and Management (MATAR)
PROJECT MANAGER: HILL-DAR JV
MAIN CONTRACTOR: MIDMAC-TAV-TAISEI Joint Venture

Hamad International Airport Station Box

WJ Groundwater Admin July 6, 2016

Precision. Accuracy. Patience

The Hamad International Station Box is a sub-surface structure composed of (approximately) a 305m long by 25m wide by 20m deep box with two abutting single level MEP zones approximately 10m deep. The Station Box is directly adjacent to the airport lagoons which are connected to the Arabian Gulf. The groundwater table has been encountered at about +0.5m QNHD, or about 2.5m below the current ground level. Excavation of the box was done using a top-down method.

Part of the requirements in the construction of the station box is monitoring the movement or behaviour of the structural elements such as the diaphragm wall, concrete beams, plunged columns and temporary steel props; and the movement of the ground and nearby structures surrounding the box.

Automated In-place bi-axial inclinometers were used to monitor wall deflection, both the x and y directions. These instrument record sub-millimeter movement of the diaphragm wall on an hourly interval, and the data were instantaneously processed and the results were accessible at almost real time. The In-place Inclinometers were also supplemented by manual inclinometer which were surveyed 3x a week. Ground settlement were monitored using precise levelling, and wall movement of the nearby bridges were monitored using 1” (one-second) Total Station.

Vibrating wire strain gauges were used to monitor the load of the concrete beams, plunged columns and the temporary props. These instruments were hard-wired to dataloggers, which sends all the data remotely to a central monitoring PC. An audio-visual alarm was also connected to the datalogger, which tripped whenever the set limit is breached. The amber trigger limits were breached several times, but no red trigger limit was ever encountered.

During the excavation stage, the Monitoring Group consisting of Group Five’s Project Manager and WJ’s expert reporter convened daily to discuss the results of the monitoring.

Precision. Accuracy. Patience. Confidence!

MAIN CONTRACTOR: Group Five Construction
ENGINEER: Mott MacDonald
PROJECT MANAGER: MACE
CLIENT: NDIA Steering Committee,

Dubai International Airport dewatering stormwater pipe line excavation

WJ Groundwater Admin June 13, 2016

WJ Groundwater have completed several projects at Dubai International Airport. This commission saw us use wellpoints to dewater the length of a new stormwater and fuel line that was being installed by ALEC at the Dubai International Airport.

WJ installed a single sided wellpoint system to provide the Main Contractor with clear access to the trench from one side to undertake excavation work and to install the storm water pipeline and fuel line without obstructions. As ALEC wanted a quick installation and speedy drawdown, instead of using conventional jetting techniques, the wellpoints were installed using WJ’s SM14 rotary drilling rig. The trench was dug in the open with stepped face to maintain stability. WJ were chosen to undertake the works as they have been working on the airport for over 10 years and have considerable knowledge of the ground conditions, were extremely competitive, and maintain up to date landside and airside gate passes for their dedicated airport engineers and technicians.

The project went extremely well and the engineers on site were impressed by the tidiness of the installation. WJ used diesel wellpoint pumps connected to a central headermain to draw the water out of the ground. Contact WJ Groundwater today to find out how we can assist you with pipeline dewatering.

Dubai International Airport Terminal 3 and Concourses

Neil.Coulter May 25, 2016

Dubai, iconic for its high rise buildings including the World’s tallest building, the Burj Khalifa, is the business hub and holiday destination of the Middle East.

To build itself as major transport hub for passengers and cargo travelling across the globe, in 2002 Dubai’s Department of Civil Aviation (DCA) initiated construction of the Dubai Airport Terminal 3 building and concourses 2 and 3. It covered a massive area of 750m by 500m and was excavated up to 25m deep. When it was completed in 2008 the Terminal 3 building was the largest building in the world per floor space and is currently the largest terminal in the World. The Terminal 3 iconic building is constructed to look like an aeroplane wing, and initially was exclusively for Emirates airlines.

To help realise this fantastic engineering ambition, WJ Groundwater were, of course, brought onto the team.

To facilitate the excavation works in the dry, WJ Groundwater used its considerable experience dewatering large scale project in Europe installed a large scale dewatering system. A key selling point of WJ Groundwater’s solution was that despite the sheer scale of the project, all the deepwells were installed around the perimeter of the site. This meant that the Main Contractor could get on with the excavation and construction works without having any obstructions. At peak construction WJ were operating in excess of 200 deepwells as well as a fully automated data logger monitoring system that allowed WJ and their clients to monitor water levels across site in real time from a website.

WJ Groundwater is very proud of their achievements and is honoured to have worked on such an iconic project.

LOCATION: Dubai, United Arab Emirates
CLIENT: Dubai Airports Company, Government of Dubai
MAIN CONTRACTOR: Al Naboodah Contracting

Dubai International Airport

Neil.Coulter December 11, 2013

Since it opened in 1960, passenger numbers at Dubai International Airport have grown and grown, on average by 15% a year.