@inproceedings{9675bac988fe4443bfc94675647c18f3,
title = "Estimation of reinforcement mechanism according to the subgrade arrangement",
abstract = "A confined-reinforced earth method for a subgrade is one of the proposed methods to mitigate unevenness of road surface. It is expected to ensure emergency vehicles going through the road even just after an earthquake. A reinforced subgrade consists of granular materials, geogrids and steel confining rods. Construction of this layer beneath the asphalt pavement is expected to prevent unevenness even if the road embankments settle due to earthquake. A series of laboratory model tests was performed to investigate the reinforcement mechanism by changing a thickness of the composite layer and introducing pre-stress into confining steel rods. In the model tests, to simulate the settlement, one end of the model of a composite layer in a soil tank was raised by a crane and the other end was fixed at the bottom of the container. It was found that a thickness had a strong influence on the transmission of force in a composite layer and that sufficient thickness of the composite layer was needed to distribute the weight to geogrid layers in a reinforced subgrade efficiently. Stretched geogrids were thought to play an important role in confining the dilation of granular soil layer and reducing the shear deformation of soil layer.",
keywords = "Confined-reinforced earth methods, Confining steel rod, Differential settlement, Earthquake, Geogrid",
author = "S. Tachibana and J. Kuwano and N. Tatta and T. Ishigaki",
year = "2014",
language = "英語",
series = "10th International Conference on Geosynthetics, ICG 2014",
publisher = "Deutsche Gesellschaft fur Geotechnik e.V.",
editor = "Martin Ziegler and Kirsten Laackmann and Gerhard Brau and Georg Heerten",
booktitle = "10th International Conference on Geosynthetics, ICG 2014",
note = "10th International Conference on Geosynthetics, ICG 2014 ; Conference date: 21-09-2014 Through 25-09-2014",
}