Data on manmade sinkholes due to leakage in underground pipelines in different subsurface soil profiles

Ali, Haibat; Choi, Ji Min

doi:10.1016/j.dib.2021.106740

Cited by 4 publications

(2 citation statements)

References 1 publication

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“…When the fine particles are in a state of critical motion, = 0 , substituting Eqs. ( 6), (7), and (8) into Eq. ( 9), we obtain the critical water velocity that causes the motion of fine movable particles in the soil body as…”

Section: Analysis Of Collapse Caused By Erosionmentioning

confidence: 99%

“…Shi et al [6] studied water leakage diffusion in soil under water pressure and its impact on surface settlement. Ali et al [7] examined underground pipeline leakage-induced collapses through indoor model experiments, considering water flow patterns and pipeline leakage locations. Gao [8] established model experiments to simulate seepage erosion from pipeline breakage and analyzed its impact on surrounding soil.…”

Section: Introductionmentioning

confidence: 99%

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Study on the influence of water supply and drainage pipeline damage on urban silt ground collapse

Gu,

Wei,

Liu

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Underground drainage pipelines play crucial roles in urban construction and development. Over time, these pipelines may incur damage and leakage due to aging and changes in surrounding loads. Ruptures and leaks in pipelines can lead to water seepage through cracks, resulting in erosion of surrounding soil layers and the formation of underground cavities. The loss of support in the soil above these cavities can lead to structural instability and eventual ground collapse. Such collapses can disrupt urban transportation systems, leading to significant social and economic consequences. This study specifically investigates ground collapse phenomena resulting from damage to drainage pipelines in silty soil within the Yellow River flood area in Zhengzhou City. By considering the influence of seepage velocity at the damaged pipeline section, the study differentiates between seepage erosion and scour erosion, conducting theoretical analyses and calculations for each scenario. The results show that ① when the surrounding area of the pipeline is damaged and the slow seepage rate causes a change in the critical groundwater level ΔH ≥ (Lσt )/((1 – n)γw), the soil around the pipeline will be damaged by seep erosion; ② when the water flow velocity at the damaged area of the pipeline is reached V 0 = 2λ(γs – γw )a 2 B 2/(9μ(B 2 – b 2)), the water flow impacts the soil and causes erosion damage. The critical pressure within the pipeline can be derived from the stress state where the pipeline is damaged P 1 = ρ 2 [ 2 λ ( γ s − γ w ) a 2 B 2 / ( 9 μ ( B 2 − b 2 ) ) ] ; ③ the underground cavity formed by water flow erosion is assumed to be an “soil arch.” The stress analysis on it obtains the critical span of the “soil arch” when the “soil arch” is damaged 2b = [2c(H + h) + Kaγ(H + h)2 tan φ – P]/(H + h/3). This study provides a theoretical basis and technical support for the management of silty ground collapse in the Yellow River flood area.

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Section: Analysis Of Collapse Caused By Erosionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the influence of water supply and drainage pipeline damage on urban silt ground collapse

Gu,

Wei,

Liu

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Investigating the drivers of urban cover-collapse sinkholes in shanghai: analyzing dominant factors and proposing mitigation strategies

Li,

Wang,

Tang

2024

Anthropocene Coasts

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Urban cover-collapse sinkholes pose a significant global challenge due to their destructive impacts. Previous studies have identified groundwater fluctuations, subsurface soil conditions, pipeline leakage, precipitation, and subterranean construction activities as key contributors to these phenomena. However, unique geological settings across different urban environments lead to variations in the primary factors influencing sinkhole formation. This study focuses on Shanghai, a city notable for its extensive urbanization and rich historical context, to explore the dynamics of sinkholes within urbanized areas worldwide. We employ spatial analysis and statistical methods to examine data on sinkholes recorded in the past two decades in Shanghai, correlating these events with the city’s shallow sand layer, ground elevation, and proximity to surface water. Our goal is to identify the dominant factors governing sinkhole occurrence in Shanghai and to lay the groundwork for their effective scientific management and prevention. Key findings indicate that most sinkholes in the area are associated with a thin shallow sand layer, low to moderate ground elevations, and the absence of nearby rivers. Additionally, many sinkholes correlate with subterranean voids within the confined aquifer beneath the cohesive soil layer. The lack of historical river channels, obscured by urban development, also indirectly contributes to sinkhole formation. We recommend enhancing urban river management and drainage systems to mitigate potential damage from water accumulation.

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Pipeline Burst–Related Soil Stability in Collapse Condition

Shiau

Mahalingasivam

Chudal

et al. 2022

J. Pipeline Syst. Eng. Pract.

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Data on manmade sinkholes due to leakage in underground pipelines in different subsurface soil profiles

Cited by 4 publications

References 1 publication

Study on the influence of water supply and drainage pipeline damage on urban silt ground collapse

Study on the influence of water supply and drainage pipeline damage on urban silt ground collapse

Investigating the drivers of urban cover-collapse sinkholes in shanghai: analyzing dominant factors and proposing mitigation strategies

Pipeline Burst–Related Soil Stability in Collapse Condition

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