Journal of Northeastern University Natural Science ›› 2018, Vol. 39 ›› Issue (4): 579-584.DOI: 10.12068/j.issn.1005-3026.2018.04.025

• Resources & Civil Engineering • Previous Articles     Next Articles

Calculation on Deformation of Layered Sandy with Weak Interlayer Under Large Foundation

LI Chun, XIU Zhan-guo, WANG Fei-li   

  1. School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China
  • Received:2016-10-24 Revised:2016-10-24 Online:2018-04-15 Published:2018-04-10
  • Contact: XIU Zhan-guo
  • About author:-
  • Supported by:
    -

Abstract: A settlement calculation models of layered subgrade under large foundation was established based on theories of saturated soil. Taking the different soil properties and the modified Cam-Clay and Mohr-Coulomb models into account, the compressive modulus were derived by considering the plastic deformations under the condition of K0. Based on the subfield of planar mesh and the layer-wise summation method, a settlement calculation model of layered sandy foundation base with weak interlayer under large foundation was established, which is more close to the engineering practice. The results showed that the calculation results by the suggested model are comparatively close to the numerical simulation results, and can clearly reflect the characteristic of deformation in weak interlayer. The suggested calculation model can provide basis to the settlement calculation of layered sandy foundation base with weak interlayer under large foundation.

Key words: layered sandy foundation base, weak interlayer, subfield of planar mesh, constitutive relation, settlement

CLC Number: