CHEN Chuan-sheng,JIANG Xin,ZHANG Xu.Liquefaction Susceptibility of Soils With Clay Particles from Earthquake-induced Landslides[J].Research of Soil and Water Conservation,2007,14(05):306-308.
Liquefaction Susceptibility of Soils With Clay Particles from Earthquake-induced Landslides
- Title:
- Liquefaction Susceptibility of Soils With Clay Particles from Earthquake-induced Landslides
- 关键词:
- liquefaction; earthquake-induced landslides; undrained cyclic ring-shear tests; plasticity index; clay content
- Keywords:
- liquefaction; earthquake-induced landslides; undrained cyclic ring-shear tests; plasticity index; clay content
- 分类号:
- P642.21;P315.728
- 摘要:
- The main reason for earthquake-induced landslides is liquefaction of soil，a process considered to occur mostly in sandy soils.Liquefaction which occurs in clayey soils has also been reported and proven in the recent literature，but liquefaction in clayey soils still remains unclear and there are many questions that need to be addressed.In order to address these questions，an depth study on the liquefaction potential of clayey soils was conducted on the basis of field investigation and a series of laboratory tests on the samples collected from the sliding surface of the landslides.The liquefaction potential of the soils was studied by means of undrained cyclic ring-shear tests.Research results show that the liquefaction potential of sandy soils is higher than that of clayey soils given the same void ratio；the soil resistance to liquefaction rises with an increase in plasticity for clayey soils；relation between plasticity index and the liquefaction potential of soil can be used in practical application to estimate the liquefaction potential of soil.
- Abstract:
- The main reason for earthquake-induced landslides is liquefaction of soil,a process considered to occur mostly in sandy soils.Liquefaction which occurs in clayey soils has also been reported and proven in the recent literature,but liquefaction in clayey soils still remains unclear and there are many questions that need to be addressed.In order to address these questions,an depth study on the liquefaction potential of clayey soils was conducted on the basis of field investigation and a series of laboratory tests on the samples collected from the sliding surface of the landslides.The liquefaction potential of the soils was studied by means of undrained cyclic ring-shear tests.Research results show that the liquefaction potential of sandy soils is higher than that of clayey soils given the same void ratio;the soil resistance to liquefaction rises with an increase in plasticity for clayey soils;relation between plasticity index and the liquefaction potential of soil can be used in practical application to estimate the liquefaction potential of soil.
参考文献/References:
[1] Ishihara K, Kokusho T, Silver M L.Resent developments in evaluating liquefaction characteristics of local soils[A].In:Proceedings of the 12th International Conference on Soil Mechanics and Foundation Engineering[C].Rio de Janeiro, 1989.
[2] Tocho I, Yasuda S.Liquefaction of the ground during the 1978 Miyagiken-Oki earthquake[J].Sois and Foundations, 1981, 21(3):18-34.
[3] Miura S, Kawamura S, Yagi K.Liquefaction damage of sandy and volcanic grounds in the 1993 Hokkaido Nansei-Oki earthquak[A].Proc.3rd Int.Conf.on Recent Advances in Geotechnical Earthquake[C].Engg.and Soil Dynamics, St.Louis, MO, 1, 1995.193-196.
[4] Sassa K, Fukuoka H, Wang F, et al.Dynamic properties of earthquake-induced large-scale rapid landslides within past landslide masses[J].Landslides, 2005, 2(2):18-30.[5] Fukuoka K H, Wang G, Ishikawa N.Undrained dynamic loading ring shear apparatus and application for landslide dynamics[J].Landslides, 2004, 1(1):7-21.
[6] Sassa K, Take A.Geotechnical model for the motion of landslides[A].Proceedings of the International Symposium on Landslides[C].1988.37-55.
备注/Memo
收稿日期:2006-4-23。
作者简介:CHEN Chuan-sheng（1971- ），male，doctor course，mainly research on landslide，debris flow prevention，soil and water conservation.