KFU. Card publication. Seepage to staggered tunnels and subterranean cavities: analytical and HYDRUS modeling

KAZAN
FEDERAL UNIVERSITY

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SEEPAGE TO STAGGERED TUNNELS AND SUBTERRANEAN CAVITIES: ANALYTICAL AND HYDRUS MODELING

Form of presentation

Articles in international journals and collections

Year of publication

2022

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Authors, employees of KFU

Obnosov Yuriy Viktorovich, author

Other authors

Kacimov Anvar Rashidovich, author

Šimůnek Jirka , author

Bibliographic description in the original language

A. R. Kacimov, Yu. V. Obnosov, and J. Šimůnek. Seepage to staggered tunnels and subterranean cavities: analytical and HYDRUS modeling. Advances in Water Resources (Elsevier) 2022, Volume 164, article id. 104182. DOI: https://doi.org/10.1016/j.advwatres.2022.104182 (WoS IF=4.51, Q1)

Annotation

Darcian, 2-D flows to subterranean holes are studied analytically (by the methods of complex analysis) and numerically (by HYDRUS). For flow towards two circular or quasi-circular tunnels, reconstructed as isobars generated by two sinks under a ponded homogeneous soil surface, the flow nets, the velocity vector fields, and Riesenkampf's seepage force vectors are found. The position of the two tunnels is optimized using a criterion of the total area of the empty space comprised by the isobars with the admissible seepage flow rate as a constraint and the locus of the tunnels as a control variable. The case of a partially-filled tunnel, the contour of which is composed of two conterminous isobaric and equipotential arcs, is also analyzed. For a grouted tunnel, the refraction problem for two potential fields in two subdomains of the half-plane of the seepage flow domain is solved for an arbitrary contrast between the hydraulic conductivities of the liner and ambient soil. The tunnel grouting is, generally, eccentric with respect to the tunnel contour. High hydraulic gradients in the grouting are detected, which is a long-term seepage-harbinger for any liner materials used by geotechnical engineers.

Keywords

Subterranean holes, complex potential, Darcian velocity; isobars, seepage force, HYDRUS modeling

The name of the journal

ADV WATER RESOUR

URL

https://doi.org/10.1016/j.advwatres.2022.104182

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=266211&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Obnosov Yuriy Viktorovich	ru_RU
dc.contributor.author	Kacimov Anvar Rashidovich	ru_RU
dc.contributor.author	Šimůnek Jirka	ru_RU
dc.date.accessioned	2022-01-01T00:00:00Z	ru_RU
dc.date.available	2022-01-01T00:00:00Z	ru_RU
dc.date.issued	2022	ru_RU
dc.identifier.citation	A. R. Kacimov, Yu. V. Obnosov, and J. Šimůnek. Seepage to staggered tunnels and subterranean cavities: analytical and HYDRUS modeling. Advances in Water Resources (Elsevier) 2022, Volume 164, article id. 104182. DOI: https://doi.org/10.1016/j.advwatres.2022.104182 (WoS IF=4.51, Q1)	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=266211&p_lang=2	ru_RU
dc.description.abstract	ADV WATER RESOUR	ru_RU
dc.description.abstract	Darcian, 2-D flows to subterranean holes are studied analytically (by the methods of complex analysis) and numerically (by HYDRUS). For flow towards two circular or quasi-circular tunnels, reconstructed as isobars generated by two sinks under a ponded homogeneous soil surface, the flow nets, the velocity vector fields, and Riesenkampf's seepage force vectors are found. The position of the two tunnels is optimized using a criterion of the total area of the empty space comprised by the isobars with the admissible seepage flow rate as a constraint and the locus of the tunnels as a control variable. The case of a partially-filled tunnel, the contour of which is composed of two conterminous isobaric and equipotential arcs, is also analyzed. For a grouted tunnel, the refraction problem for two potential fields in two subdomains of the half-plane of the seepage flow domain is solved for an arbitrary contrast between the hydraulic conductivities of the liner and ambient soil. The tunnel grouting is, generally, eccentric with respect to the tunnel contour. High hydraulic gradients in the grouting are detected, which is a long-term seepage-harbinger for any liner materials used by geotechnical engineers.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Subterranean holes	ru_RU
dc.subject	complex potential	ru_RU
dc.subject	Darcian velocity; isobars	ru_RU
dc.subject	seepage force	ru_RU
dc.subject	HYDRUS modeling	ru_RU
dc.title	Seepage to staggered tunnels and subterranean cavities: analytical and HYDRUS modeling	ru_RU
dc.type	Articles in international journals and collections	ru_RU