This paper addresses the important role of water in geohazard and failure in urban underground excavation. These so-called underground water-related hazards. such as leakage of the tunnel eye due to launching and docking of the shield. failure of the cross-passage excavation. https://jannxyh2eujr0.blog2freedom.com/34914994/demographic-characteristics-and-ocular-needs-of-children-attending-child-eye-clinics-in-cross-river-state-nigeria-a-retrospective-analysis-of-clinical-records