The Exacerbating Effect Mechanism of Tidal Jacking on Waterlogging Hazards in Coastal Cities DOI Creative Commons
Yan Liu, Hao Wang, Yi Ding

et al.

Water Resources Research, Journal Year: 2025, Volume and Issue: 61(3)

Published: March 1, 2025

Abstract The tidal jacking effect is a crucial factor exacerbating waterlogging in coastal cities, but its mechanism complex and difficult to quantify. In this study, comprehensive framework established explore how exacerbates waterlogging. includes three components: hydrodynamic simulations of urban combing rainfall tide levels, analysis the drainage system reveal impedes water flow waterlogging, quantification changes flooded buildings assess impact hazards. Taking Liede River Basin Guangzhou, China, as case results show that levels intensify through series cascading processes: outfalls, impeded pipeline drainage, pipe overflow, eventually surface When encounters jacking, number duration jacked outfalls increase, extending full pipes. This leads 9%–43% increase overflow 4%–27% expansion area. exceeds under jacking. Tidal proportion areas with different risk concentrating higher downstream. also causes differential losses among building types. study provides essential insights into level offers evidence for mitigating

Language: Английский

The Exacerbating Effect Mechanism of Tidal Jacking on Waterlogging Hazards in Coastal Cities DOI Creative Commons
Yan Liu, Hao Wang, Yi Ding

et al.

Water Resources Research, Journal Year: 2025, Volume and Issue: 61(3)

Published: March 1, 2025

Abstract The tidal jacking effect is a crucial factor exacerbating waterlogging in coastal cities, but its mechanism complex and difficult to quantify. In this study, comprehensive framework established explore how exacerbates waterlogging. includes three components: hydrodynamic simulations of urban combing rainfall tide levels, analysis the drainage system reveal impedes water flow waterlogging, quantification changes flooded buildings assess impact hazards. Taking Liede River Basin Guangzhou, China, as case results show that levels intensify through series cascading processes: outfalls, impeded pipeline drainage, pipe overflow, eventually surface When encounters jacking, number duration jacked outfalls increase, extending full pipes. This leads 9%–43% increase overflow 4%–27% expansion area. exceeds under jacking. Tidal proportion areas with different risk concentrating higher downstream. also causes differential losses among building types. study provides essential insights into level offers evidence for mitigating

Language: Английский

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