Effect of dry density on the liquefaction behaviour of Quaternary silt
文献类型：期刊论文
| 作者 | Zhang Chong-lei; Jiang Guan-lu; Su Li-jun; Liu Wei-ming; Zhou Gong-dan |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 15期号:7页码:1597-1614 |
| 关键词 | Liquefaction Quaternary silt Dry density Earthquake magnitude Liquefaction assessment Cyclic stress ratio |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-018-4930-5 |
| 文献子类 | Article |
| 英文摘要 | Quaternary silt is widely distributed in China and easily liquefies during earthquakes. To identify the influence of the dry density on the liquefaction behaviour of Quaternary silt, 40 cyclic triaxial liquefaction tests were performed on loose silt (dry density rho (d) =1.460 g/cm(3)) and dense silt (rho (d) =1.586 g/cm(3)) under different cyclic stress ratios (CSRs) to obtain liquefaction assessment criteria, determine the liquefaction resistance, improve the excess pore water pressure (EPWP) growth model and clarify the relationship between the shear modulus and damping ratio. The results indicate that the initial liquefaction assessment criteria for the loose and dense silts are a double-amplitude axial strain of 5% and an EPWP ratio of 1. The increase in the anti-liquefaction ability for the dense silt is more significant under lower confining pressures. The CSR of loose silt falls well within the results of the sandy silt and Fraser River silt, and the dense silt exhibits a higher liquefaction resistance than the sand-silt mixture. The relationships between the CSR and loading cycles were obtained at a failure strain of 1%. The EPWP development in the dense and loose silts complies with the fast-stable and fast-gentle-sharp growth modes, respectively. The power function model can effectively describe the EPWP growth characteristics of the dense silt. Finally, based on the liquefaction behaviour of silt, a suggestion for reinforcing silt slopes or foundations is proposed. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000438468900017 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35555]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.7 |
| 推荐引用方式 GB/T 7714 | Zhang Chong-lei,Jiang Guan-lu,Su Li-jun,et al. Effect of dry density on the liquefaction behaviour of Quaternary silt[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(7):1597-1614. |
| APA | Zhang Chong-lei,Jiang Guan-lu,Su Li-jun,Liu Wei-ming,&Zhou Gong-dan.(2018).Effect of dry density on the liquefaction behaviour of Quaternary silt.JOURNAL OF MOUNTAIN SCIENCE,15(7),1597-1614. |
| MLA | Zhang Chong-lei,et al."Effect of dry density on the liquefaction behaviour of Quaternary silt".JOURNAL OF MOUNTAIN SCIENCE 15.7(2018):1597-1614. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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