globalchange  > 气候变化与战略
DOI: 10.5194/hess-24-1669-2020
论文题名:
Technical note: The beneficial role of a natural permeable layer in slope stabilization by drainage trenches
作者: Urciuoli G.; Comegna L.; Pirone M.; Picarelli L.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2020
卷: 24, 期:4
起始页码: 1669
结束页码: 1676
语种: 英语
Scopus关键词: Hydraulic equipment ; Safety factor ; Slope protection ; Soils ; Stabilization ; Drainage efficiency ; Drainage systems ; Hydraulic system ; Natural soils ; Permeable layers ; Slope deformation ; Slope stabilization ; Technical notes ; Drainage ; drainage ; hydraulic conductivity ; pore pressure ; probability ; slope stabilization
英文摘要: Slope stabilization through drainage trenches is a classic approach in geotechnical engineering. Considering the low hydraulic conductivity of the soils in which this measure is usually adopted, a major constraint to the use of trenches is the time required to obtain a significant pore pressure decrease, here called "time lag". In fact, especially when the slope safety factor is small, the use of drainage trenches may be a risky approach due to the probability that slope deformations will damage the system well before it will become fully operative. However, this paper shows that the presence of persistent permeable natural soil layers can provide a significant benefit by increasing drainage efficiency and reducing time lag. As a matter of fact, any permeable layer that is intercepted by trenches may operate as part of the global hydraulic system, reducing the drainage paths.A simplified approach to designing a drainage system that accounts for the presence of a persistent permeable layer is proposed. This approach, which can exploit solutions available in the literature for parallel drainage trenches, has been validated by numerical analyses. © 2020 Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162740
Appears in Collections:气候变化与战略

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作者单位: Urciuoli, G., Dipartimento di Ingegneria Civile, Edile e Ambientale, Università di Napoli 'Federico II', Napoli, 80125, Italy; Comegna, L., Dipartimento di Ingegneria, Università della Campania 'Luigi Vanvitelli', Aversa, 81031, Italy; Pirone, M., Dipartimento di Ingegneria Civile, Edile e Ambientale, Università di Napoli 'Federico II', Napoli, 80125, Italy; Picarelli, L., JTC1 'Natural Slopes and Landslides', Federation of International Geo-Engineering Societies (FedIGS), Naples, 80131, Italy

Recommended Citation:
Urciuoli G.,Comegna L.,Pirone M.,et al. Technical note: The beneficial role of a natural permeable layer in slope stabilization by drainage trenches[J]. Hydrology and Earth System Sciences,2020-01-01,24(4)
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