Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Model studies on geogrid- or geocell-reinforced sand cushion on soft soil
The present study was based on the problem of the soft soil foundation of the Qin-shen Railway. Laboratory model tests were designed to analyze the effects of different types of geosynthetic-reinforced sand cushions. The tests were carried out using a geogrid- or geocell-reinforced sand cushion overlying soft soil. Settlements were measured at different locations on the cross-section, and the earth pressure on the surface of the soft soil and the tension of the geogrid under different applied pressures were inferred. One or two layers of geosynthetic materials were placed in a sand cushion to create composite layers with improved bearing capacity over a soft-soil foundation. Four test groups are reported. The results indicate that with the provision of a geocell-reinforced sand cushion, there is a substantial reduction in settlement of the underlying soft soil. The subgrade reaction coefficient KM is improved by 3000 %, and the deformation is reduced by 44 %. The surface earth pressure of the non-reinforced sand cushion is larger than that of the reinforced groups, especially for the geocell-reinforced sand cushion.
Model studies on geogrid- or geocell-reinforced sand cushion on soft soil
The present study was based on the problem of the soft soil foundation of the Qin-shen Railway. Laboratory model tests were designed to analyze the effects of different types of geosynthetic-reinforced sand cushions. The tests were carried out using a geogrid- or geocell-reinforced sand cushion overlying soft soil. Settlements were measured at different locations on the cross-section, and the earth pressure on the surface of the soft soil and the tension of the geogrid under different applied pressures were inferred. One or two layers of geosynthetic materials were placed in a sand cushion to create composite layers with improved bearing capacity over a soft-soil foundation. Four test groups are reported. The results indicate that with the provision of a geocell-reinforced sand cushion, there is a substantial reduction in settlement of the underlying soft soil. The subgrade reaction coefficient KM is improved by 3000 %, and the deformation is reduced by 44 %. The surface earth pressure of the non-reinforced sand cushion is larger than that of the reinforced groups, especially for the geocell-reinforced sand cushion.
Model studies on geogrid- or geocell-reinforced sand cushion on soft soil
Modelluntersuchungen zu mit Geogittern oder Geozellen verstärkten Sandbetten über weichem Boden
Zhou, Huabao (Autor:in) / Wen, Xuejun (Autor:in)
Geotextiles and Geomembranes ; 26 ; 231-238
2008
8 Seiten, 12 Bilder, 3 Tabellen, 27 Quellen
Aufsatz (Zeitschrift)
Englisch
Model studies on geogrid- or geocell-reinforced sand cushion on soft soil
| Online Contents | 2008
Model studies on geogrid- or geocell-reinforced sand cushion on soft soil
| Online Contents | 2008
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