›› 2010, Vol. 31 ›› Issue (1): 217-222.

• Geotechnical Engineering • Previous Articles     Next Articles

A preliminary research on theory and application of unsaturated red layers embankment settlement

LIU Jun-xin1，LIU Yu-tian2，QIU En-xi2   

  1. 1. School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China; 2. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2009-05-29 Online:2010-01-10 Published:2010-02-02

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Abstract:

Embankment body is composed mainly of unsaturated soils and its deformation included the three components, namely, deformation resulting from the instantaneous compaction, deformation of primary consolidation and secondary consolidation deformation,therefore, their theory should reflect the three-part deformation. Based on results of uniaxial compression creep test of red layers and unsaturated soil single variable, theory of unsaturated soil embankment settlement of red layers is put forward; through numerical simulation of embankment construction process of a worksite in Suining, railway line for passenger traffic from Chongqing to Suining, the deformation characteristics and predicted final settlements of numerical simulation are consistent with the field measurements，which shows that the theory is correct.

Key words: creep, unsaturated soils, single variable, settlement, field measurements

CLC Number: 

  • U 231.1
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