Tensar Technology Used on Airport Projects

Transcription

1 Tensar information bulletin IB/Airport _Projects/08/06/11 Tensar Technology Used on Airport Projects Tensartech Structural Systems 2005 Tensartech NaturalGreen slope, Geralds International Airport, Montserrat. (Tensar Case study Ref 185) A 30m high Tensartech NaturalGreen slope supporting the western end of the runway of the rebuilt Montserrat airport, previously abandoned after a volcano eruption in 1995 A 1 in 1 reinforced soil slope was chosen to help construct the new runway in a mountainous part of the island, and to reduce the size of the footprint and fill material needed. Site won volcanic ash was used as the reinforced fill material Tensartech NaturalGreen Noise Barrier, John Lennon Airport, Liverpool, UK. The Tensartech NaturalGreen System was selected to form a 7.0m high Noise Barrier with a vegetated finish at the end of the runway extension, adjacent to a residential area. Cost effective and aesthetically acceptable, site won will material was used to construct the bund. Tensar high strength geosythetic, Basetex was used to reinforce the base of the embankment against potential deep seated foundation failure. Tensar information bulletin 1/7 IB/Airport_Pojects/08/06/11

2 1997 Tensartech Wraparound Noise Barrier, Gardermoen Airport, Olso, Norway (Tensar Case study Ref 008) A Geogrid wraparound noise bund was constructed around the engine test area at the airport using site won gravels as the fill material The structure was faced with concrete facing units that were cast in-situ The cost benefits of the system helped a tendering contractor win the job with a value engineered alternative to the traditional design and gave environmental benefits by reusing site won fill that would otherwise have been removed from site. 2008, Basetex Installation, Orão Airport, Oran, Algeria Tensar high strength geotextile, Basetex, installed provided a cost effective installation. This offered permanent stability to a critical load bearing surface. 1999, Tensar Mesa Retaining Wall System, Lester B Pearson Airport, Toronto, Canada Four retaining walls totalling over 1,500 m2 face area were constructed at the PIFFC refuelling facility using the Tensar Mesa Retaining Wall System Tensar information bulletin 2/7 IB/Airport_Projects/08/06/11

3 Tensar Asphalt Reinforcement 2010, Asphalt Overlay Reinforcement, RAF Military Airfield, Odiham, UK A new asphaltic overlay was required which would have a high resistance to the thermally induced reflective cracking stresses and also provide a barrier to any fuel spillages Tensar Glasstex was chosen to inhibit reflective cracking Once it is installed the Glasstex geotextile component of the composite becomes impregnated with bitumen and so provides an additional barrier against potential contamination of the Aquifer from any fuel spillages The Client commented, Specialist installer Foster Contracting efficiently laid the 8,500m² of Glasstex in just 3.5 hours using 2 gangs each with a dedicated tanker and Glasstex lay down rig, which surpassed our expectations. 2003, Asphalt Reinforcement in Overlay, Reconstruction of Runway, Volkel Airport, Netherlands (Tensar Case study Ref 141) The two ends of the runway were resurfaced as the airport was upgraded for increased traffic Tensar Glasstex was used to extend the pavement life and reduce the costs of maintenance in the overlay over concrete slabs where reflective cracking is a common occurrence over the joints. Tensar information bulletin 3/7 IB/Airport_Projects/08/06/11

4 2003, Asphalt Reinforcement in overlay, Reconstruction of Taxiway, Woensdrecht Airport, Netherlands (Tensar Case study Ref 140) Tensar Glasstex was used to help control reflective cracking over the parts of the taxiway where an asphalt overlay was installed for the first time over existing concrete slabs. Tensar AR1 was used on the parts of the taxiway that had previously been overlaid with unreinforced asphalt, and which had failed to stop the cracks re-appearing. This new overlay incorporated the reinforcement at its base. 1996, Asphalt Reinforcement, Ronaldsway Airport, Isle of Man, UK ARG was used to mitigating reflective cracking over pq concrete for aircraft stands 1989 Asphalt Reinforcement, Ronneby Airport/ Military Base, Sweden (Tensar Case study Ref 054) Tensar ARG, a fabric backed asphalt reinforcing grid, was used to mitigate the development of bottom up reflective cracks in asphalt overlays on an original concrete slab runway design After 12 years of service the customer commented that the service life from this kind of treatment is now exceeding several of the expected maintenance cycles 1989, Asphalt Reinforcement, Taipei Airport, Taiwan Tensar information bulletin 4/7 IB/Airport_Projects/08/06/11

5 Tensar AR1 asphalt grid was used in strips over joints on an old concrete pavement that was being resurfaced 1980 s, Asphalt Reinforcement, Linkoping Airport, Sweden Tensar Asphalt reinforcing grids were used on the resurfacing of this airport to increase the lifespan of the apron areas. 1988, Asphalt Reinforcement, Don Muang Airport, Bangkok, Thailand AR1 reinforcing grid was used when overlaying aging concrete slabs in need of repair around the aircraft gates. Tensar Ground Stabilisation 2002, Tensar Mechanically Stabilised Layer, Glasgow Airport, Glasgow, Kentucky, USA Mechanical stabilisation of granular fill using Tensar Geogrids to form a Mechanically Stabilised Layer (MSL) was used to both extend and widen the existing runway over clay subgrade soils The MSL was used to reduce the thickness of aggregate required to form a capping layer by over a third, giving substantial savings in construction time and costs associated with the aggregate thickness required and removal of as dug material from site. Tensar information bulletin 5/7 IB/Airport_Projects/08/06/11

6 2000, Tensar Mechanically Stabilised Layer, LAX Airport, Los Angeles, California USA Tensar Geogrids were used to mechanically stabilise 3 new high speed exit taxiways at one the world s busiest airports. Mechanical Stabilisation was used as an alternative to lime stabilisation as it offered quicker installation over variable soils along with cost savings. 2001, Tensar Mechanically Stabilised Layer, Tooele Valley Airport, Salt Lake City, Utah, USA Tensar Geogrids were used to stabilise the upgrade of this airport runway and taxiways to allow larger aircraft to use it for the 2002 Winter Olympics at Salt Lake City. Local soil conditions and a high water table dictated that the new heavier duty pavement of the runway would need to be reconstructed from the sub-base up. The MSL was used to stabilise the unbound layers and increase the load bearing capacity over an existing sub grade that was at a stage close to failure and providing little support. 1999, Tensar Mechanically Stabilised Layer, Lester B Pearson Airport, Toronto, Canada 21,000 m2 of runway was mechanically stabilised with Tensar grids The quantity of imported granular materials was reduced, thus saving both time and money. 1994, Tensar Mechanically Stabilised Layer, Dulles International Airport, Washington D.C., USA Tensar MSL Engineer: Tensar Earth Technologies, Inc. /Greiner Engineering Contractor: Facchina Construction Company Tensar information bulletin 6/7 IB/Airport_Projects/08/06/11

7 2001, Tensar Mechanically Stabilised Layer, Riga Airport, Latvia (Tensar Case study Ref 077) Tensar Ground Stabilisation Geogrids were used to stabilise the foundation layers on the upgrade of Riga Airport. Existing concrete slabs on the apron and stand area s had deteriorated beyond repair and an asphalt surfaced alternative was installed with reinforced unbound foundation layers. The old concrete slabs were crushed and used as the fill material with the Tensar geogrids. This gave considerable savings on the project 1982, Tensar Mechanically Stabilised Layer, Stanley Airfield, Falkland Islands Tensar Ground Stabilisation geogrids were used with granular fill to form a mechanically stabilised layer over a saturated peaty subgrade and to provide adequate support for a temporary runway surface on an extension to the existing runway that was required quickly for military use after the recapture of the airport during the Falklands war. Rapid installation was required due to the construction team being under live fire. The information in this document is of an illustrative nature and is supplied without charge. It does not form part of any contract or intended contract with the user. Final determination of the suitability of any information or material for the use contemplated and the manner of use is the sole responsibility of the user and the user must assume all risk and liability in connection therewith. Tensar is a registered trade mark Tensar International Limited Tel: +44 (0) Fax: +44 (0) sales@tensar.co.uk UK Head Office Cunningham Court Shadsworth Business Park Blackburn BB1 2QX United Kingdom Tensar information bulletin 7/7 IB/Airport_Projects/08/06/11