| Titre : | Analytical study on progressive pullout behavior of a soil nail (2012) |
| Auteurs : | Cheng-Yu Hong, Auteur ; Yin, Jian-Hua, Auteur ; Wan-Huan Zhou, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Journal of geotechnical and geoenvironmental engineering (Vol. 138 N° 4, Avril 2012) |
| Article en page(s) : | pp. 500–507 |
| Note générale : | Géologie appliquée |
| Langues : | Anglais |
| Tags : | 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 |
