Mechanical Fatigue of a Stabilized/Treated Soil Tested with Uniaxial and Biaxial Flexural Tests

详细信息    查看全文

• 作者：Mathieu Preteseille ; Thomas Lenoir ; ^{Thomas.lenoir@ifsttar.fr" class="auth_mail" title="E-mail the corresponding author}
• 关键词：High Speed Rails infrastructures ; mechanical fatigue ; biaxial flexural test ; stabilized/cement-treated soils ; High Speed Rails design
• 刊名：Transportation Research Procedia
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：14
• 期：Complete
• 页码：1923-1929
• 全文大小：289 K

文摘

During Civil Engineering works, it is a common practice to upgrade mechanical performances of in situ soils by adding few percent of hydraulic binders such as lime and/or cement. But the specificity of stress state in railways structures (biaxial tension) and the lack of knowledge about the fatigue mechanical performances of treated/stabilized natural soils under this stress state have led to the non-use of treated soils in HSR layers. To enable the use of treated soils in railways infrastructures a specific test was developed to induce biaxial tension. This biaxial test, dedicated to railways structures and a uniaxial test from pavement design are applied to a treated soil. Results are compared; it appears that the treated soil has better performances under biaxial tension.