水利水电技术2018，Vol.49Issue(1)：143-148,6.DOI:10.13928/j.cnki.wrahe.2018.01.021
预应力锚索边坡加固作用的离心机试验研究
Centrifuge experiment-based study on slope reinforcing effect of anchor cable
摘要
Abstract
Prestressed anchor cable has the characteristics of taking both the active support and passive support into account.At the early stage of applying prestress to anchor cable,the prestress can enhance the integrity and failure strength of rock mass,and then is favorable to restrict the relaxing and unloading effects from the excavation of the lower part of slope on the rock mass of the upper part of slope,thus embodies the active supporting role.However,during the long-term operation of slope,the later-stage tensile stress is caused by the deformation brought about by both the unloading relaxation of the slope rock mass and the external stress,which embodies the passive supporting role.A stress analysis is made herein on the operation process of the anchor cable installed in slope with the centrifuge model experiment,and then the law of the exertion of the supporting role during the operation process of the prestressed anchor cable-supported slope is revealed as well.The study result has an important guiding role for the supporting design of rock slope in the days to come.关键词
预应力锚索/岩质边坡/模型试验/离心机/支护作用Key words
prestressecl anchor cable/rock slope/model test/centrifuge/supporting role分类
建筑与水利引用本文复制引用
李林昊,赵宇飞,汪小刚..预应力锚索边坡加固作用的离心机试验研究[J].水利水电技术,2018,49(1):143-148,6.基金项目
国家自然科学基金项目(51409283,52479214) （51409283,52479214）
