Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Use of an apron to stabilize geomembrane tubes for fighting floods
The most common temporary flood-fighting technique is the construction of piles of sandbags. A recent alternative is the use of inflated geomembrane tubes (which are also used as cofferdams). One of the problems with these tubes is the possibility of sliding or rolling when they are subjected to water on one side. This can be mitigated by friction underneath an apron attached to the tube and spread along the ground on the headwater side. In this investigation experiments are conducted on tubes with aprons of varying lengths. Then an analytical model of a simplified version of the system is proposed, involving a rigid foundation and inextensible membrane material. Finally, a numerical analysis using the program FLAC is carried out, including the effects of soil deformations, pore pressures, and bending stiffness of the tube material. The results demonstrate that a geomembrane tube with an apron of sufficient length under the headwater can be an effective flood-fighting device.
Use of an apron to stabilize geomembrane tubes for fighting floods
The most common temporary flood-fighting technique is the construction of piles of sandbags. A recent alternative is the use of inflated geomembrane tubes (which are also used as cofferdams). One of the problems with these tubes is the possibility of sliding or rolling when they are subjected to water on one side. This can be mitigated by friction underneath an apron attached to the tube and spread along the ground on the headwater side. In this investigation experiments are conducted on tubes with aprons of varying lengths. Then an analytical model of a simplified version of the system is proposed, involving a rigid foundation and inextensible membrane material. Finally, a numerical analysis using the program FLAC is carried out, including the effects of soil deformations, pore pressures, and bending stiffness of the tube material. The results demonstrate that a geomembrane tube with an apron of sufficient length under the headwater can be an effective flood-fighting device.
Use of an apron to stabilize geomembrane tubes for fighting floods
Der Einsatz einer Schürze zur Stabilisierung von Geomembranrohren zur Bekämpfung von Überflutungen
Kim, Meeok (Autor:in) / Freeman, Marcos (Autor:in) / FitzPatrick, Brendan T. (Autor:in) / Nevius, David B. (Autor:in) / Plaut, Raymond H. (Autor:in) / Filz, George M. (Autor:in)
Geotextiles and Geomembranes ; 22 ; 239-254
2004
16 Seiten, 12 Bilder, 1 Tabelle, 15 Quellen
Aufsatz (Zeitschrift)
Englisch
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