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长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:

2010年02期

Page:

29-33

Research Field:

Publishing date:

2010-04-20

Info

Title:

Visco-elastic-plastic model of permanent deformation of subgrade soils under repeated load

Author(s):

ZHANG Hong-liang¹;  BIAN Xiang-qin²;  WANG Yu-lan³

1. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Shandong Province Highway Engineering Construction Group Co Ltd, Jinan 250101, Shandong, China; 3. Shandong Province Institute of Communications Planning and Design, Jinan 250031, Shandong, China

Keywords:

road engineering;  subgrade soil;  permanent deformation;  prediction model;  repeated load test

PACS:

U461.16

DOI:

-

Abstract:

In order to describe the permanent deformation characteristics with three stages of subgrade soil under repeated load test, based on the creep equations of visco-elastic-plastic model with five components, after translating the pulse load consisting of a haversine loading and a rest period into a constant load, a theoretical prediction model for the permanent deformation under repeated load was deduced. The repeated load dynamic triaxial tests were carried out to obtain the permanent deformation curves. The test results were regressed by the theoretical model. The results show that the permanent deformation with three stages of subgrade soils will happen under repeated load dynamic triaxial tests, the theoretical model can predict the permanent deformation with three stages very well. 1 tab, 4 figs, 12 refs.

References:

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Memo

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Common functions

Last Update: 2010-04-20