TY - GEN
T1 - Estimation of the settlement of improved ground with floating-type cement-treated columns
AU - Ishikura, Ryohei
AU - Ochiai, Hidetoshi
AU - Omine, Kiyoshi
AU - Yasufuku, Noriyuki
AU - Kobayashi, Taizo
PY - 2007
Y1 - 2007
N2 - In recent times, economy and environmental safety have become very important factors in the construction of soil structures. Floating-type deep mixing soil stabilization has the advantage of reducing the cost of construction of soil structures on deep soft soil layers. Therefore, it is important to elucidate the mechanism of the consolidation settlement of improved ground with floating columns. First, in order to investigate the effects of the improvement ratio, improvement depth, and arrangement of columns, one-dimensional consolidation tests were carried out on a model ground with floating columns. The results of the tests were then compared with those obtained using a settlement model based on the homogenization method with a consideration of the stress distribution ratio. Finally, loading model tests were conducted under a plane strain condition to simulate the consolidation deformation of the improved ground. Under these test conditions, it was confirmed that the settlement of the improved portion can be estimated by using the proposed model.
AB - In recent times, economy and environmental safety have become very important factors in the construction of soil structures. Floating-type deep mixing soil stabilization has the advantage of reducing the cost of construction of soil structures on deep soft soil layers. Therefore, it is important to elucidate the mechanism of the consolidation settlement of improved ground with floating columns. First, in order to investigate the effects of the improvement ratio, improvement depth, and arrangement of columns, one-dimensional consolidation tests were carried out on a model ground with floating columns. The results of the tests were then compared with those obtained using a settlement model based on the homogenization method with a consideration of the stress distribution ratio. Finally, loading model tests were conducted under a plane strain condition to simulate the consolidation deformation of the improved ground. Under these test conditions, it was confirmed that the settlement of the improved portion can be estimated by using the proposed model.
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M3 - Conference contribution
AN - SCOPUS:55549117479
SN - 0415422809
SN - 9780415422802
T3 - Proceedings of the 4th International Conference on Soft Soil Engineering - Soft Soil Engineering
SP - 625
EP - 635
BT - Proceedings of the 4th International Conference on Soft Soil Engineering - Soft Soil Engineering
T2 - 4th International Conference on Soft Soil Engineering - Soft Soil Engineering
Y2 - 4 October 2006 through 6 October 2006
ER -