Fundamental Theroy and Experimental Research

A model for calculating the compressive deformation of remolded loess

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  • 1. College of Geology Engineering and Surveying, Chang'an University, Xi'an, Shaanxi 710000, China; 2. Hangzhou Survey, Design and Research Institute, Hangzhou, Zhejiang 310000, China

Received date: 2014-12-24

  Online published: 2018-06-09

Supported by

This research was supported by the National Key Technology Support Program (2013BAJ06B040) and Shaanxi Science and Technology Innovation Project Plan (2012KTDZD03-03、04).

Abstract

To evaluate the settlement problem of loess-filled venues, a series of high pressure consolidation tests was conducted on the remolded loess of different initial water contents and dry densities. It is found that the ratio of load to dry density p/?d is linearly correlated with the applied loading, based on which a settlement prediction model of filled venues of different thicknesses (loads) is established. The model has two parameters, namely, k and b. Parameter k decreases with the increase of initial moisture content w0 or initial dry density ?d0, satisfying a relationship among the three variables (i.e., ?d0 k + w0=1); whereas parameter b depends mainly upon the initial dry density and decreases with the increase of initial dry density. Compared with the previous compressive deformation calculation models based on the relation between void ratio and loading, the proposed method which has a higher precision fitting with experimental data shows a stronger correlation, showing that it is more suitable for the calculation of compression deformation of remolded loess.

Cite this article

SHI Bo-yi ,NI Wan-kui ,WANG Yan-hui ,LI Zheng-zheng ,YUAN Zhi-hui, . A model for calculating the compressive deformation of remolded loess[J]. Rock and Soil Mechanics, 2016 , 37(7) : 1963 -1968 . DOI: 10.16285/j.rsm.2016.07.017

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