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Influence of Spherical Stress and Humidity State on Mechanical Property of Unsaturated Loess(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2007年第01期
Page:
80-84
Research Field:
Publishing date:

Info

Title:
Influence of Spherical Stress and Humidity State on Mechanical Property of Unsaturated Loess
Author(s):
ZHAO Fa-suo; QI Wei; WA NG Yan-ting
School of Geological Engineering and Surveying Engineering, Chang’ an University, Xi’an 710054, Shaanxi, China
Keywords:
loess;  strength parameters;  constitutive model;  spherical stress;  water content
PACS:
TU455
DOI:
-
Abstract:
The exponential functions of unsaturation loess strength parameters changing with water content are given after analyzing the results of convention tri-axle test, and the suitability of D-P criterion to decide plastic yield of loess in different humidity states is also verified. The loess compress test result shows that the stress- strain relationship of loess varies with spherical stress and humidity condition. The constitutive relation of Q3 loess can be described by a simple exponential function. A constitutive model is advanced based on testing in laboratory and comparing with the constitutive model offered in other documents, the model not only has less parameters and is easy to be determined, but also is simple.

References:

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Memo

Memo:
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Last Update: 1900-01-01