Allowing for climate change; an innovative solution to landslide stabilisation in an environmentally sensitive area on the Isle of Wight

Gillarduzzi, A; Clark, Allen L.; Fort, D; Bomont, S.; Holliday, Jonathan

doi:10.1201/noe0415443180.ch52

Cited by 2 publications

(1 citation statement)

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“…Govi (1989) and Cambiaghi and Schuster (1989) introduced a system using a siphon technique as an emergency drainage treatment for landslides. Currently, siphon drainage combined with electropneumatic drainage is a key method for discharging ground water in Europe, especially in France (Bertolini et al, 2005;Clark et al, 2007;Bomont, 2008;Gillarduzzi, 2008;Mrvik and Bomont, 2012). Studies have been conducted on slope siphon drainage since the 1990s, such as those on the initial siphon forming method, the maximum height limit of siphon drainage, the maintenance of siphon and management requirements.…”

Section: Introductionmentioning

confidence: 99%

An investigation of flow characteristics in slope siphon drains

Cai

Sun

Shang

et al. 2014

J. Zheijang Univ.-Sci.

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This paper presents a study of flow characteristics in high-lift siphon drains. A laboratory test was conducted to investigate the effects of hose diameter and flow velocity on siphon drainage. Three types of water flow were observed and analyzed. The experimental results show that the flow characteristics of siphon drainage are significantly influenced by the hose diameter. Water flows in the form of a wall pressing flow in a large diameter siphon hose (e.g., larger than 5.0 mm) under low flow velocity, which leads to discontinuous siphon drainage. However, water flows in the form of an integral slug flow in a small diameter siphon hose (e.g., smaller than 4.0 mm) under low flow velocity, which leads to continuous siphon drainage. Based on experimental observations, a thermodynamic derivation of the threshold of siphon hose diameter for continuous siphon drainage was analytically conducted. In slope engineering, a 3.6 mm polyurethane (PU) hose is recommended for siphon drainage.

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