Analytical study on progressive pullout behavior of a soil nail / Cheng-Yu Hong in Journal of geotechnical and geoenvironmental engineering, Vol. 138 N° 4 (Avril 2012)  

Analytical study on progressive pullout behavior of a soil nail [texte imprimé] / Cheng-Yu Hong, Auteur ; Yin, Jian-Hua, Auteur ; Wan-Huan Zhou, Auteur . - 2012 . - pp. 500–507.
Géologie appliquée
Langues : Anglais (eng)
in Journal of geotechnical and geoenvironmental engineering > Vol. 138 N° 4 (Avril 2012) . - pp. 500–507

Mots-clés :	Analytical study Soil nail Parametric Pullout resistance progressive interaction
Résumé :	During the past few decades, soil nailing has been widely used for stabilizing slopes and excavations. The nail-soil interface shear resistance in the passive zone of a slope or excavation is a critical parameter in design. In this paper, an analytical study is proposed to investigate the progressive pullout response of a soil nail. Pullout process is divided into three typical phases: (1) the initial pure elastic phase during which the nail-soil interface follows a linear elastic stress-displacement relationship; (2) the elastic-plastic phase during which a transition point presents dividing the elastic and plastic zones; and (3) the final pure plastic phase. A comparison study between calculations and laboratory test data are presented to examine the effectiveness of the method. In addition, a comprehensive parametric study is performed to assess the effects of several key factors on the pullout resistance of a soil nail. These factors include the length and diameter, length of plastic zone, and the elastic modulus of a soil nail. Main research findings are presented and discussed to gain a better understanding of the progressive interaction between soil and soil nail.
DEWEY :	624.1
ISSN :	1090-0241
En ligne :	http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GT.1943-5606.0000610