A numerical study on artificial fill embankment with liquefiable foundation using FLAC
文献类型：会议论文
| 作者 | Lan Hengxing |
| 出版日期 | 2013 |
| 会议名称 | 2nd International Conference on Geotechnical and Earthquake Engineering: Challenges and Recent Advances in Geotechnical and Seismic Research and Practices, IACGE 2013, October 25, 2013 - October 27, 2013 |
| 会议地点 | Chengdu, China |
| 关键词 | Soil liquefaction Civil engineering Computer simulation Embankments Engineering geology Pore pressure Pressure distribution Sand Seismology Soils |
| 页码 | 263-270 |
| 英文摘要 | The problem of seismic liquefaction related to artificial fill embankment is complicated. In this study, by making using of Finn model, a typical artificial fill embankment was simulated by means of Finn model in FLAC. Numerical simulation results indicated that the pore water pressure of saturated sand soil increased extremely which resulted in the significant decrease of the effective stress. When the effective stress decreased approximately to zero, the liquefaction phenomena occurred. According to the change of pore water pressure at different locations and depths, three rules have been obtained. Firstly, the occurrence time for the first peak of pore water pressure coincided with the seismic peak acceleration of input wave. Secondly, the liquefaction occurred earlier in the upper layer of saturated sand soil than in the lower layer below the bottom of slope. However the duration of liquefaction in the lower layer of saturated sand soil was longer than in the upper layer. Thirdly, the upper layer of saturated sand soil was almost not liquefiable below the top of slope, while the lower layer was easily liquefiable with long duration time. In summary, the characteristics of seismic liquefaction in the artificial fill embankment were closely related to the seismic wave, locations and depths of saturated sand soil in a slope. 2013 American Society of Civil Engineers. |
| 收录类别 | EI |
| 会议录出版者 | American Society of Civil Engineers (ASCE) |
| 语种 | 英语 |
| ISSN号 | 8950563 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/31044]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Lan Hengxing. A numerical study on artificial fill embankment with liquefiable foundation using FLAC[C]. 见:2nd International Conference on Geotechnical and Earthquake Engineering: Challenges and Recent Advances in Geotechnical and Seismic Research and Practices, IACGE 2013, October 25, 2013 - October 27, 2013. Chengdu, China. |
入库方式： OAI收割
来源：地理科学与资源研究所
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