Soil Erosion Due to Defective Pipes: A Hidden Hazard Beneath Our Feet

Pooya Dastpak, Rita L. Sousa () and Daniel Dias
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Pooya Dastpak: Department of Civil Environmental & Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
Rita L. Sousa: Department of Civil Environmental & Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
Daniel Dias: Laboratory 3SR, CNRS UMR 5521, Grenoble Alpes University, 38000 Grenoble, France

Sustainability, 2023, vol. 15, issue 11, 1-23

Abstract: Sinkholes are a significant underground hazard that threatens infrastructure and lives and sometimes results in fatalities. The annual cost of sinkhole damages exceeds $300 million, although this estimate is likely underestimated due to the need for national tracking. Sinkholes can also alter natural drainage patterns, leading to increased flood risk. While natural sinkholes occur, those in urban areas are predominantly manmade, caused by soil erosion from defective pipes, typically due to aging. Climate change, storm surges, and urbanization have accelerated subsidence in urban environments, posing greater risks to critical infrastructure and densely populated areas. Extensive research has focused on soil erosion in dams; however, this knowledge does not necessarily apply to erosion through orifices, where gravity and other factors play significant roles. This paper presents a critical literature review on internal soil erosion due to defective pipes (SEDP). The review highlights that hydraulic loading, backfill type, and pipe conditions (defect shape, size, and depth) influence SEDP. Key findings from experiments and numerical studies are summarized, while mechanisms and knowledge gaps are identified. However, it is concluded that the current understanding in this field remains limited, underscoring the urgent need for further experimental and numerical research to expand the knowledge base on SEDP.

Keywords: internal soil erosion; sinkhole; defective pipes; urban environments (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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