Integrated assessment for route selection of river-crossing pipeline using structural and hydraulic approach

Kim, Moon Kyum; Won, Jong Uk; Cho, Seok Ho; Park, Moonhyeong

doi:10.1080/15732479.2011.627349

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…When crossing an alluvial river, the pipeline is theoretically required to be installed below scour depth, and adequate cover must be maintained under the bed [ 1 , 2 ]. However, the design procedure for a pipeline crossing often does not involve a rigorous estimation of the hydrological and hydrodynamic conditions [ 3 ]. The pipes buried initially might become exposed as a result of long-term river bed degradation, which increases the risk of pipeline damage caused by currents, waves, vibration, and human activities [ 4 – 6 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic and Sediment Responses of Open Channels to Exposed Pipe Encasements

et al. 2015

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The effects of exposed pipe encasements on the local variation of hydrodynamic and sediment conditions in a river channel are examined. Laboratory experiments are performed to assess the response of water level, flow regime and bed deformation to several representative types of concrete encasements. The experimental conditions considered are: three types of exposed pipe encasements exposed on the bed, including trapezoidal shape, circular-arc shape and polygonal shape, and three sets of discharges, including annual discharge, once-in-3-year flood, and once-in-50-year flood. Our experiments show that: (1) the amount of backwater definitely depends on the encasement geometric shape and the background discharge; (2) smaller discharges generally tend to induce local scour of river bed downstream of the encasement, and the order of sensitivity of bed deformation to the encasement geometric shape is trapezoidal > circular-arc > polygonal; (3) comparatively speaking, the polygonal encasement may be considered as a suitable protective structure for pipelines across alluvial rivers, with relatively modest effects on the local hydrodynamic conditions and bed stabilization.

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Section: Introductionmentioning

confidence: 99%

Hydrodynamic and Sediment Responses of Open Channels to Exposed Pipe Encasements

et al. 2015

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Underground pipelines and railway infrastructure – failure consequences and restrictions

Garmabaki

Marklund

Thaduri

et al. 2019

Structure and Infrastructure Engineering

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A decision support tool for assessing risks to above-ground river pipeline crossings

Maniatis

Williams

Hoey

et al. 2020

Proceedings of the Institution of Civil Engineers - Water Manag

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Infrastructure assets require suitable management and assessment protocols due to age-related deterioration, extreme weather events and climate change impacts. Above-ground river crossings are weak links in pipe networks since bank erosion and scour can undermine the integrity of built structures. A simple protocol was developed to assess river bank stability in the vicinity of river pipeline crossings. The erosion risk index (ERI) follows established bank erosion estimation techniques, adapted for users who are not trained geomorphologists. Calculation of the ERI is based on analysis of photographs acquired during an optimised inspection protocol using a custom app on a ruggedised tablet computer. The ERI was tested across Scotland and proved to be adequate for a first-order geomorphological assessment and to provide a classification of crossings according to susceptibility to river bank erosion. The ERI is transferable, with appropriate testing, to other infrastructure river crossing networks in the UK and beyond. The methodology used to develop and test the ERI is applicable to the development of other protocols to manage and assess infrastructure assets.

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Integrated assessment for route selection of river-crossing pipeline using structural and hydraulic approach

Cited by 3 publications

References 12 publications

Hydrodynamic and Sediment Responses of Open Channels to Exposed Pipe Encasements

Hydrodynamic and Sediment Responses of Open Channels to Exposed Pipe Encasements

Underground pipelines and railway infrastructure – failure consequences and restrictions

A decision support tool for assessing risks to above-ground river pipeline crossings

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