STUDY ON STABILITY AND SETTLEMENT OF EMERGENCY RECONSTRUCTED EMBANKMENT USING SANDBAG AGAINST TRAIN LOAD

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  • 土のうで応急復旧を行った盛土の列車荷重載荷に対する安定および沈下検討

Abstract

In recent years, a lot of railway embankments have been damaged due to severe rainfall. In the case where the restart of the operation of railway is strictly required, the emergency reconstruction works are conducted, and large-scale sandbags are often used in the works. However, the stability and the characteristics of settlement of the embankments have not been studied efficiently. In this study, the rainfall infiltration and cyclic loading tests of re-constructed embankments were performed. From these studies, it was revealed that the stability of the reconstructed embankments was recovered if the support and drainage of the sandbags was sufficient. Furthermore, the stability of the sandbag could be evaluated by considering balance of earth pressure, so the structures of re-constructed embankment using sandbags were analytically examined.

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