Aircraft Take-Offs Above, Tunnel Construction Below
Jul 31, 2019
Dubai International Airport is the hub of air traffic in the Persian Gulf: nearly 90 million international passengers are handled here each year. The operators are constantly investing in capacity expansion. As part of Dubai International Airport Expansion Phase 3, during ongoing flight operations a Herrenknecht micromachine (AVND2400AB) safely and precisely excavated three 610, 765 and 825 meter long sections for a new stormwater drainage tunnel under the taxiway.
Herrenknecht tunnel boring machines in the hands of skillful tunnel builders are ideally equipped for this challenging task.
The tunnelling crew from International Foundation Group, working for Dubai Aviation Engineering Projects under the project management of M.A. Kharafi & Sons, relied on Herrenknecht tunnelling technology to extend the stormwater drainage system at Dubai Airport. In March 2019, they celebrated the successful completion of the project.
Using the pipe jacking method, an AVN machine (AVND2400AB, Ø 3,025 mm) mastered the challenge of three drives of 610, 765 and 825 meter respectively under the taxiway. The result is a new drainage tunnel with a total length of 2,200 meters, which increases the airport's drainage capacity.
At depths of 13 to 15 meters, the micromachine crossed under the Terminal 2 taxiways while flight operations on the ground and in the air continued smoothly and safely. On the longest drive an average of 15 meters of tunnel per day were excavated through soft soils with sandstone and siltstone. The drive remained exactly on course by precise process and control technology from VMT.
The new pipelines will efficiently collect and drain away rainwater, especially during heavy downpours, so it can no longer accumulate on the surface. This is crucial to maintaining smooth flight operations. With close to 90 million passengers per year, Dubai International Airport is one of the busiest airports in the world.
In the past, Herrenknecht technology has successfully completed a number of challenging tunnel missions, such as crossing under airports. For the extension of the baggage handling system at Zurich's Kloten Airport, a Herrenknecht Mixshield (Ø 6,280 mm) superbly excavated a 2,400 meter long tunnel under the airport grounds until 2001. In 2002, an EPB Shield (Ø 6,460 mm) tunnelled under the Minneapolis-St. Paul Airport in the United States for the newly developed 18.6 kilometer long light rail system.
In 2017, two EPB Shields (Ø 6,250 mm) completed two new tunnel tubes for passenger and baggage transport with a total length of 3,842 meters under the runways at Moscow Airport Sheremetyevo in Russia.
During the excavation of a 4,500 meter long metro tunnel in Barcelona, in 2018 a taxiway at El Prat Airport was crossed under over a distance of 70 meters with great success.
Aircraft take-offs above, tunnel construction below
MACHINE / PROJECT DATA M-1804M - DUBAI AIRPORT
Machine type: AVND2400AB
- Shield diameter: 3,025 mm
- Drive power: 315 kW
- Torque: 1,200 kNm
- Drive length: 1x 610 m, 1x 765 m, 1x 825 m
- Geology: soft soils (sandstone, siltstone)
- Client: Dubai Aviation Engineering Projects Corporation
- Main contractor: M.A. Kharafi & Sons
- Tunnelling subcontractor: International Foundation Group L.L.C.
More News and Articles
Sep 29, 2023
Researchers from the University of Illinois Chicago have proposed a “dual-pipeline” solution to address the region’s water supply issues. The system would feature one line supplying industrial sites with treated wastewater and another conveying drinking water to homes and other …
Sep 27, 2023
New e-learning module of the course BE-07 Investigation and Inspection of Sewers and Pipelines now available on UNITRACC!
Sep 27, 2023
Any water loss through leaking pipes is unacceptable in the eyes of the public, and on the launch of a deep-dive leakage report from Ovarro, technology leader for leakage solutions, Barbara Hathaway, explains how technologies continue to advance.
Sep 25, 2023
Pumping liquids may seem like a solved problem, but optimizing the process is still an area of active research. Any pumping application—from industrial scales to heating systems at home—would benefit from a reduction in energy demands. Researchers at the Institute …
Sep 22, 2023
PPXXI Conference and Exhibition welcomes McElroy Manufacturing, Inc. as the mobile app sponsor. Their sponsorship enhances networking opportunities for the delegates. Scheduled over September 25 -27, 2023, in Lake Buena Vista, Florida, PPXXI is the key technical and business event …
Sep 20, 2023
Aquatech is the leading water technology show in the world, with over 800 exhibitors and expecting over 22,000 visitors from over 140+ countries.
Sep 18, 2023
Designed to reduce pollution in Lake Erie by four billion gallons per year, Project Clean Lake is a 25-year plan being overseen by Cleveland's Northeast Ohio Regional Sewer District (NEORSD). When construction crews complete the $3 billion undertaking in 2036, …
Sep 13, 2023
Mullane once again proved why the company is an industry leader in pipeline solutions with a relining project on the mid north coast of New South Wales.
Sep 11, 2023
Pezzimenti Trenchless continues to showcase its position as a leading trenchless specialist by completing works on two Victorian projects.
Sep 08, 2023
Silvertown Tunnel under Thames - Newham to Greenwich near O2 Arena: See two massive boreholes in east London
The second of two boreholes beneath the Thames – which will together form London’s new Silvertown Tunnel – is now complete.
Sep 04, 2023
Report highlights American Water’s sustainable impact on communities across the U.S.
Aug 31, 2023
Anaergia Selected to Design, Build and Operate Organic Waste-to-Renewable Energy Project in San Diego County
System to provide renewable power, reduce wastewater utility costs, and cut greenhouse gas emissions for East County Advanced Water Purification facility.