### Abstract

This paper is to investigate the effect of cyclic shear direction (or phase difference) on the accumulation of excess pore water pressure during cyclic shear and on the recompression after cyclic shear. Several series of uni-directional and multi-directional cyclic simple shear test under undrained conditions were carried out for a normally consolidated Kaolin. It is indicated from the test results that the accumulation of pore water pressure and the post-cyclic settlement increase with the shear strain amplitude and phase difference. The change of the void ratio in recompression stage increases approximately in proportion to the logarithm of the stress reduction ratio, and is independent of shear strain amplitude, but affected by cyclic shear direction. A new estimation method of excess pore water pressure ratio and the post-cyclic settlement by using cumulative shear strain is presented. By using this shear strain parameter, the effect of cyclic shear direction on the excess pore water pressure and on the post-cyclic settlement can be eliminated.

Original language | English |
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Title of host publication | Advances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012 |

Pages | 598-603 |

Number of pages | 6 |

Publication status | Published - 2012 |

Externally published | Yes |

Event | 2nd International Conference on Transportation Geotechnics, ICTG 2012 - Hokkaido, Japan Duration: Sep 10 2012 → Sep 12 2012 |

### Other

Other | 2nd International Conference on Transportation Geotechnics, ICTG 2012 |
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Country | Japan |

City | Hokkaido |

Period | 9/10/12 → 9/12/12 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Geotechnical Engineering and Engineering Geology
- Transportation

### Cite this

*Advances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012*(pp. 598-603)

**Accumulation of excess pore water pressure and post-cyclic settlement of saturated soft clay subjected to multi-directional cyclic simple shear.** / Matsuda, H.; Nhan, T. T.; Ishikura, Ryohei; Hendrawan, A. P.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Advances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012.*pp. 598-603, 2nd International Conference on Transportation Geotechnics, ICTG 2012, Hokkaido, Japan, 9/10/12.

}

TY - GEN

T1 - Accumulation of excess pore water pressure and post-cyclic settlement of saturated soft clay subjected to multi-directional cyclic simple shear

AU - Matsuda, H.

AU - Nhan, T. T.

AU - Ishikura, Ryohei

AU - Hendrawan, A. P.

PY - 2012

Y1 - 2012

N2 - This paper is to investigate the effect of cyclic shear direction (or phase difference) on the accumulation of excess pore water pressure during cyclic shear and on the recompression after cyclic shear. Several series of uni-directional and multi-directional cyclic simple shear test under undrained conditions were carried out for a normally consolidated Kaolin. It is indicated from the test results that the accumulation of pore water pressure and the post-cyclic settlement increase with the shear strain amplitude and phase difference. The change of the void ratio in recompression stage increases approximately in proportion to the logarithm of the stress reduction ratio, and is independent of shear strain amplitude, but affected by cyclic shear direction. A new estimation method of excess pore water pressure ratio and the post-cyclic settlement by using cumulative shear strain is presented. By using this shear strain parameter, the effect of cyclic shear direction on the excess pore water pressure and on the post-cyclic settlement can be eliminated.

AB - This paper is to investigate the effect of cyclic shear direction (or phase difference) on the accumulation of excess pore water pressure during cyclic shear and on the recompression after cyclic shear. Several series of uni-directional and multi-directional cyclic simple shear test under undrained conditions were carried out for a normally consolidated Kaolin. It is indicated from the test results that the accumulation of pore water pressure and the post-cyclic settlement increase with the shear strain amplitude and phase difference. The change of the void ratio in recompression stage increases approximately in proportion to the logarithm of the stress reduction ratio, and is independent of shear strain amplitude, but affected by cyclic shear direction. A new estimation method of excess pore water pressure ratio and the post-cyclic settlement by using cumulative shear strain is presented. By using this shear strain parameter, the effect of cyclic shear direction on the excess pore water pressure and on the post-cyclic settlement can be eliminated.

UR - http://www.scopus.com/inward/record.url?scp=84867440948&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84867440948&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9780415621359

SP - 598

EP - 603

BT - Advances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012

ER -