New Taipei Land Consolidation Utility Project Linked to Neighboring Damage; City Expedites Backfill and Assessment

Joint utility duct excavation in the Wenzaijun urban land consolidation zone in Xinzhuang, New Taipei City, prompted complaints from nearby residents over backyard subsidence and wall cracks, stoking concerns regarding foundation stability. On-site engineers explained that sheet piling vibrations in soft soil caused ground displacement and cracks in non-structural walls, while asserting that the structural foundation is intact. The New Taipei City Land Administration Department responded that it will accelerate construction and backfilling in excavated sections to stabilize surrounding structures, while commissioning the civil engineering association for an independent safety evaluation. The department added that preliminary signs show no structural failure, promising repairs and compensation if damage is proven to stem from the project.

Key takeaways

• Residents reported ground subsidence, tile fractures, and wall cracks following excavation and sheet piling vibrations from the Wenzaijun utility duct project.
• On-site engineers stated sheet piling vibrations in soft soil caused wall cracking through ground displacement, but structural foundations remain sound.
• The New Taipei Land Administration Department pledged to expedite construction and backfilling to stabilize buildings, commissioning a civil engineering assessment and agreeing to compensate proven damages.