MacArmour & SteelGrid

Systém MacRes® bol zvolený ako najvhodnejšie riešenie pri oporných múroch 206, 209, 281-15, 281-18, 283-10 a 283-09. Systém MacRes® reprezentuje vystuženú horninovú konštrukciu tvorenú výstužnými geopásmi ParaWeb® v kombinácii s lícnymi betónovými prefabrikovanými panelmi hr. 0,14m, ktoré sú navzájom prepojené prostredníctvom certifikovaných polymérnych úchytov ParaLoop®. Systém je v zmysle STN EN 14475 zaradený do kategórie polotuhých systémov, ktoré sú vhodné hlavne pre priame zaťažené konštrukcie väčších výšok, a pri ktorých sa očakáva nerovnomerné sadanie v priečnom alebo pozdĺžnom smere. Predovšetkým z tohto dôvodu boli všetky technicky najnáročné konštrukcie na tejto stavbe realizované práve z tohto systému.

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Siargao Island in the province of Surigao del Norte is known to be the Surfing Capital of the Philippines. Not just for surfers, Siargao's fascinating natural beauty captivates both local and foreign tourists. However, some areas are susceptible to landslides and other natural hazards due to the geologic setting and weather conditions. Certain sections of the road is confined by cut-slopes along its perimeter which is unprotected and presents the following risks: (1) erosion of soil – leading to slippery roads, (2) dislodgement of rocks leading to rockfall events, and (3) localized slope failure from surfacial instability. Even small rockfalls, or debris flows can block infrastructure and can have far-reaching economic effects beyond the immediate disruption.

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The 103 km long motorway is a key connection between Durres Port, Albania's primary harbour on the Adriatic Sea and Kosovo. Journey times of between six and ten hours will be reduced to two by this new road and the new route will serve to stimulate the economy in Albania's North Eastern region. Due to the mountainous topography of the area, many sections of the motorway run alternately through large steep embankment fill sections and slope cuts, with soil reinforcement, rock-fall protection, erosion control and revegetation measures required. The availability of large quantities of rock fills generated by the slope excavations made the choice of embankment fills a more cost effective alternative to the construction of viaducts. Of the 70 retaining walls required, those up to 15m high were constructed of concrete. However, the 30 walls over 15m high were designed as reinforced soil structures to re-use site won fill and reduce the visual impact.

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