黄土地区全长黏结式锚杆承载力分析研究  

Analysis of bearing capacity of wholly grouted anchor in loess region

作　　者：赵伟强[1] 周小会[1] 王强[1] 

机构地区：[1]重庆交通大学土木建筑学院,重庆400074

出　　处：《河南城建学院学报》2015年第4期5-9,共5页Journal of Henan University of Urban Construction

摘　　要：基于界面本构力学模型的假定,考虑非饱和土体基质吸力的特性,在摩尔-库伦强度准则下,推导出适宜于非饱和土质边坡锚杆的锚固微分方程及解析解。对某一非饱和土质边坡工程进行试算,并对土层锚杆的受力进行分析,分析表明:锚杆轴力和剪应力沿土层锚杆全长分布,并逐渐减小。土层锚杆的破坏由外向内逐步破坏,且锚固体直径对其轴力的分布没有影响。Based on the assumption interface mechanics constitutive model,considering the characteristics of unsaturated soil matric suction in Moore-Coulomb strength criterion under deduce suitable for unsaturated soil slope anchor bolt differential equations and analytical solutions. On unsaturated soil slope of a spreadsheet works,and soil anchor force is analyzed,the analysis shows that bolt axial force and shear stress distribution along the full length of soil anchor and gradually decreases. The outside-the gradual destruction of soil anchor damage and the diameter of the anchor does not affect its distribution of axial force.

关 键 词：锚杆 非饱和土 力学本构模型 锚杆极限承载力 受力分析 

分 类 号：TU45[建筑科学—岩土工程]