[1]QIU Mengyao,CHEN Shupei,TANG Liang,et al.A Simplified Evaluation Method of Liquefaction Resistance for Composite Foundation Reinforced by Geosynthetic-reinforced Gravel Pile[J].Journal of Seismological Research,2020,43(03):554-562.
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A Simplified Evaluation Method of Liquefaction Resistance for Composite Foundation Reinforced by Geosynthetic-reinforced Gravel Pile
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
43
Number of periods:
2020 03
Page number:
554-562
Column:
Public date:
2020-09-14
- Title:
- A Simplified Evaluation Method of Liquefaction Resistance for Composite Foundation Reinforced by Geosynthetic-reinforced Gravel Pile
- Keywords:
- geosynthetic-encased stone column; liquefaction resistance; shear stress reduction coefficient ratio; evaluation method
- CLC:
- TU195
- DOI:
- -
- Abstract:
- In order to evaluate the liquefaction resistance capability of the composite saturated sandy soil foundation with geosynthetic-encased stone column scientifically and reasonably,the accuracy of the numerical model is verified by the comparative of nonlinear finite element numerical simulation and model test using the Opensees computing platform.Then the variation law of shear stress reduction coefficient ratio of composite foundation under different working conditions is studied and analyzed.The results show that the shear stress reduction coefficient ratio of composite foundation increases with the increase of the pile diameter,reinforced body strength,and pile-soil shear modulus ratio.Also,the calculation method of shear stress reduction coefficient ratio of composite foundation is modified.Finally,a simplified method is proposed and verified to evaluate the liquefaction resistance capability of the geosynthetic-encased stone column in a single liquefied soil layer with the pile-soil shear modulus ratio as the control parameter.
- References:
- -
- Similar References:
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Last Update:
2020-09-18