Service-continuity-oriented assessment and closed-loop governance of compound flood-season risk at a piedmont hospital in Beijing

Abstract Healthcare facilities in piedmont transition zones can be exposed simultaneously to slope instability, hillslope runoff, local waterlogging, access disruption, and lifeline failures during extreme rainfall. This study examines a specialized kidney hospital in Beijing and develops a site-scale framework linking baseline geohazard screening, field verification of protective works, functional vulnerability, and emergency planning. Baseline hazard was screened using an equal-weight (25% each) ordinal overlay of slope, aspect, lithology, and a uniform extreme-rainfall trigger. The rainfall scenario was anchored to the 2023 “23·7” Beijing storm, whose maximum 1-h rainfall was 111.8 mm. A multidisciplinary pre-flood inspection was then used to evaluate engineering coverage, process-measure compatibility, and visible condition; this step produced a qualitative current-condition scenario rather than a structural reliability calculation. Baseline moderate-hazard areas were concentrated along the northern, eastern, and northwestern slopes. Retaining walls, stepped cutting, ecological protection, and mesh-reinforced shotcrete and anchoring lowered most treated areas to low hazard, while localized cracks, surface deterioration, exposed reinforcement, and uncertain interfaces retained moderate residual hazard.Potential consequences arise when localized physical disturbance affects electricity, water supply, purified-water production, access, and hemodialysis. The resulting closed-loop framework connects hazard identification, engineering inspection, graded warning actions, patient transfer, lifeline protection, and post-event review. It provides a transparent screening and governance approach for critical public-service facilities where detailed process-based data are unavailable.