Seismic Liquefaction and Stability Analysis of Highway Runway Silt Soil Subgrade
[1]ZHENG Yuanxun,HUANG Jingqing.Seismic Liquefaction and Stability Analysis of Highway Runway Silt Soil Subgrade[J].Journal of Zhengzhou University (Engineering Science),2012,33(05):61-65.[doi:10.3969/j.issn.1671-6833.2012.05.014]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33
Number of periods:
2012 05
Page number:
61-65
Column:
Public date:
2012-09-10
- Title:
- Seismic Liquefaction and Stability Analysis of Highway Runway Silt Soil Subgrade
- Keywords:
- silty soil; highway runway; seismie load; dynamie response ; liquefaction
- CLC:
- U416.2
- Abstract:
- In this paper, seismic response of highway runway silt subgrade is analyzed under seismic loads re.spectively based on the coulomb’ s model and Byrne model with FLAC caleulation program based on the practi.cal project, And the influence of seismic intensity on silty soil subgrade seismic response is analyzed in detail.The results show : the roadbed will not be liquelied, when only considering silty soil for the coulomb’ s model,but instantaneous yield may appear at subgrade slope feet. When we consider embankment material for lique-faction model, the pavement may be in a state of tension, embankment bottom may yield, and this may pro.duce subgrade soil liquefaction. Along with the increase of the acceleration peak , the extent of the tension andyield area increases inside the embankment, the likelihood of liquefaction increases, especially when theearthquake acceleration reaches to 0. 1 g, the potential existence of liquefaction of subgrade soil might appear.
- References:
- -
- Similar References:
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Last Update:
1900-01-01
