人民长江2024，Vol.55Issue(1)：208-215,8.DOI:10.16232/j.cnki.1001-4179.2024.01.029
地震荷载下预应力锚固边坡离心振动模型试验研究
Centrifugal vibration model test of prestressed anchored slope subjected to earthquake load
摘要
Abstract
As an important support method,prestressed anchor cable is widely used in slope reinforcement.However,the re-sponse mechanism of the anchored rock slope as well as the stress and deformation law of the anchor cable under seismic load are still unclear.In this paper,the key technologies of the centrifugal vibration model test were introduced,which included model simi-larity design,model manufacture,and application of seismic load.Based on the rocky inlet slope at the spillway tunnel of Zipingpu Reservoir,a centrifugal model test of the anchored rock slope under action of the simple harmonic seismic wave was performed.The test results were analyzed,and the main influencing factors of this trial were discussed.The results show that the prestressed anchor cable plays a strong role in passive support.The closer the prestressed anchor cable is to the sliding surface,the more obvi-ously the stress and strain response appears.There is also a significant change in the vertical displacement of the slope and the stress and strain response of the anchor cable as the seismic intensity changes.This study may provide an important reference for centrifugal vibration tests in the future.关键词
预应力锚索/岩质边坡/地震荷载/离心振动试验Key words
prestressed anchor cable/rocky slope/seismic load/centrifugal vibration test分类
建筑与水利引用本文复制引用
尚佳艺,赵宇飞,汪小刚,李林昊..地震荷载下预应力锚固边坡离心振动模型试验研究[J].人民长江,2024,55(1):208-215,8.基金项目
中国水科院三型人才专项项目(GE0145B042022) （GE0145B042022）
国家重点研发计划项目(2018YFC0407000) （2018YFC0407000）
