Yanchep Rail Extension (YRE) – Contiguous Bored Pile Retaining wall

The Yanchep Rail Extension is a significant infrastructure project under Perth’s METRONET initiative aimed at enhancing connectivity and fostering economic growth in the region. Slated to commence passenger services soon, this extension will link Yanchep to the broader Perth rail network, providing substantial social and economic benefits. By facilitating easier commuting for local residents and attracting visitors to Perth’s northern areas, the project promises to bolster local businesses and improve accessibility. This development represents a crucial step in Perth’s ongoing efforts to modernize its public transportation system and support sustainable urban growth.

GFWA’s scope of works involved the supply and installation of 1,261 linear meters of contiguous bored pile walls, using piles with diameters of 900mm and 1050mm. This extensive project included the installation of over 1,600 piles, each averaging 15 meters in length, totalling 25,300 linear meters of drilling. The piles were installed using segmental casing techniques in limestone of varied strengths, including cap rock.