摘要
评述了国内外预应力锚固的力学机理与力学模型的研究现状和发展趋势，及分析模型的思路和方法；应用作者提出的接触摩擦界西单元，分析模拟锚索、浆体与岩体界面之间的相互作用和耦合效应。分析中首次考虑了预应力对岩体损伤张量的影响；对单钻的力学机理与加困效果进行了系统的数值仿真试验分析研究，得到了许多对工程有益的结论与启示。
篢his paper deals with the mechanical properties of pre-stressing bolt and the presentresearch conditions and developing trends of mechanical model both at home and abroad, andanalyses the thinking ways and the method of the model establishment. Also, the friction-contactinterface unit suggested by the authors is used to analyse the interaction and coupled effectsamong the simulation bolts, slury mass and rock mass interfaces. The effects of pre-stress uponthe damage tenor of rock mass is first taken into account in this paper. The systematicalnumerical simulation test and analysis of single bolt mechanical properties and strengtheningeffects are conducted whereby obtaining many conclusi0ns and revelations useful forengineerings.
出处
《西安理工大学学报》
CAS
1997年第1期6-11,共6页
Journal of Xi'an University of Technology
基金
国家自然科学基金
"八.五"科技攻关联合资助
关键词
预应力锚
加固机理
数值仿真
锚固
单锚
pre-stressing b0lt strengthening mechanism strengthening effect interface unitnumerical model test
