›› 2014, Vol. 35 ›› Issue (S1): 443-450.

• Numerical Analysis • Previous Articles     Next Articles

Numerical simulation of dynamic interaction between widening embankment and balance weight retaining wall in mountain region

JIANG Xin1, 2, 3, GENG Jian-yu1, 2, 3, ZENG Cheng1, 2, 3, QIU Yan-jun1, 2, 3   

  1. 1.School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2. Key Laboratory of Highway Engineering of Sichuan Province, Southwest Jiaotong University, Chengdu 610031, China; 3. Key Laboratory of High-speed Railway Engineering of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2013-07-17 Online:2014-06-10 Published:2014-06-20

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Abstract: Non-linear finite element method (FEM) is conducted to simulate the dynamic construction of balance weight retaining wall building and new embankment fractional filling considering the mountain region highway embankment widening particularity. The effects of new embankment geosynthetic reinforcement and fill compaction condition on the embankment stability, slip surface behavior, settlement and retaining wall displacement are analyzed. The dynamic coupling relationship between embankment settlement and retaining wall displacement is investigated combined with the geotechnical centrifuge model tests which simulate the retaining wall different displacement modes in mountain region embankment widening project. The retaining wall displacement and embankment settlement, differential settlement are intercoupled. The embankment differential settlement will increase for the insufficient compaction under the equilibrator. The retaining wall leaning toward will induce additional embankment differential settlement. The pavement structure design should consider the magnitude modification of differential settlement induced by new embankment dead weight compaction.

Key words: mountain region highway, embankment widening reconstruction, soil-structure interaction, additional differential settlement, finite element method

CLC Number: 

  • U 418.8
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