TY - JOUR
T1 - Tire-chip reinforced foundation as liquefaction countermeasure for residential buildings
AU - Hazarika, Hemanta
AU - Pasha, Siavash Manafi Khajeh
AU - Ishibashi, Isao
AU - Yoshimoto, Norimasa
AU - Kinoshita, Tota
AU - Endo, Shigeki
AU - Karmokar, Ashoke Kumar
AU - Hitosugi, Takuto
N1 - Funding Information:
The authors would like to acknowledge the partial financial support provided by Kyushu University under Progress 100, a special project on sustainability (Principal investigator: Hemanta Hazarika). The authors also would like to thank Ms. Chu Chu, former graduate student of Geodisaster Prevention Engineering Laboratory, Kyushu University for her help in conducting the tests and preparation of data. The authors' special thanks go to Dr. Kiyonobu Kasama and Mr. Yuichi Yahiro of Geodisaster Prevention Laboratory, Kyushu University for their support during the shaking table tests.
Publisher Copyright:
© 2020
PY - 2020/4
Y1 - 2020/4
N2 - To prevent vibration-induced and liquefaction-induced damage to residential buildings during earthquakes, a low-cost technique has been developed and described here. It utilizes a mixture of tire chips and gravel as the horizontal reinforcing inclusion under the foundation of residential houses. The horizontal reinforcing inclusion refers to a layer of tire chips and gravel which is placed horizontally beneath the foundation. This mixture of tire chips and gravel provides sufficient bearing capacity to the foundation. In this research, a series of small-scale 1 g model shaking table tests was performed to evaluate the effectiveness of the technique. In addition, cyclic undrained triaxial tests were performed to evaluate the liquefaction susceptibility of tire chip-gravel mixtures. The results of the model tests indicated that when the thickness of the reinforced layer is 10 cm (2 m in prototype) and the gravel fraction (percentage by volume of gravel in the mixture) is 50%, the technique yields the best performance. The element tests also indicated that the gravel fraction plays an important role. A gravel fraction of 50–60% by volume was found to be the best mixing percentage, at which the rise in excess pore water pressure could be significantly restrained without compromising the stiffness of the reinforcing inclusion.
AB - To prevent vibration-induced and liquefaction-induced damage to residential buildings during earthquakes, a low-cost technique has been developed and described here. It utilizes a mixture of tire chips and gravel as the horizontal reinforcing inclusion under the foundation of residential houses. The horizontal reinforcing inclusion refers to a layer of tire chips and gravel which is placed horizontally beneath the foundation. This mixture of tire chips and gravel provides sufficient bearing capacity to the foundation. In this research, a series of small-scale 1 g model shaking table tests was performed to evaluate the effectiveness of the technique. In addition, cyclic undrained triaxial tests were performed to evaluate the liquefaction susceptibility of tire chip-gravel mixtures. The results of the model tests indicated that when the thickness of the reinforced layer is 10 cm (2 m in prototype) and the gravel fraction (percentage by volume of gravel in the mixture) is 50%, the technique yields the best performance. The element tests also indicated that the gravel fraction plays an important role. A gravel fraction of 50–60% by volume was found to be the best mixing percentage, at which the rise in excess pore water pressure could be significantly restrained without compromising the stiffness of the reinforcing inclusion.
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U2 - 10.1016/j.sandf.2019.12.013
DO - 10.1016/j.sandf.2019.12.013
M3 - Article
AN - SCOPUS:85087784811
VL - 60
SP - 315
EP - 326
JO - Soils and Foundations
JF - Soils and Foundations
SN - 0038-0806
IS - 2
ER -