拉力型岩土预应力锚界面粘结劣化研究进展

Research progress of interfacial bonding degradation of the tensile type geotechnical prestressed anchorage structure

拉力型岩土预应力锚固结构广泛应用于高陡边坡等大型岩土加固工程中,并日趋成为各类岩土加固工程中的首选方法,外荷载作用下其内锚固段的界面渐进粘结劣化是决定此类结构长期耐久性的关键因素。文章基于拉力型岩土预应力锚固结构研究,现状分析阐述了拉力型岩土预应力锚固结构内锚段界面粘结应力及粘结劣化的理论研究、试验研究及数值模拟研究等方面的研究进展,分析了其目前研究中存在的问题,展望了拉力型岩土预应力锚固结构界面粘结劣化研究的发展方向。

The tensile type geotechnical prestressed anchorage structures have been widely used in the high and steep slopes and other large-scale rock and soil reinforcement engineerings,and have increasingly become the preferred method of all kinds of geotechnical reinforcement engineering.Studies have shown that gradual interface bonding degradation of the interior bond section is the key factor that can determine the long-term durability of this kind of structure,so based on the situation analysis of theoretical study,experimental study and numerical simulation of bonding stress and bonding degradation for the interior bond section of the tension type geotechnical prestressed anchorage structure at home and abroad,the research situation of the above-mentioned three main research aspects of interfacial bonding degradation of the tensile type geotechnical prestressed anchorage structure have been set forth. The existing problems in the study of interfacial bonding degradation for the tensile type geotechnical prestressed anchorage structure is analyzed,and finally makes a prospect for the research direction.