水道港口2023，Vol.44Issue(5)：819-827,9.
基于改进拟动力法的沿河岩石边坡地震抗倾覆稳定性分析
Analysis of seismic anti overturning stability of rock slope along the river based on improved pseudo dynamic method
摘要
Abstract
The stability assessment of rock slopes along a riverbank is of significant importance.This paper,based on an improved pseudo-dynamic analysis method,derives earthquake safety factor calculation formulas for rock slope overturning stability under different conditions.The analysis examines the variations in rock slope overturning stability due to seismic amplification factors,toppling overload,crack water accumulation depth,anchor effects,and riverbank erosion.The results indicate that,under different geological conditions,factors such as crack water accumulation depth,horizontal seismic forces,and riverbank erosion adversely affect rock slope earthquake resistance,while factors like vertical seismic forces,anchor fixation forces,anchor heights,and slope overloading enhance rock slope overturning stability.With an increase in the rock seismic amplification factor,the adverse impact of seismic forces on rock slope overturning stability intensifies,while the adverse impact of slope overloading,crack water accumulation depth,anchor fixation forces,anchor heights,and riverbank water levels decreases,and the adverse impact of anchor angles and toe erosion heights on slope overturning stability remains relatively constant.关键词
沿河岩石边坡/倾覆稳定/拟动力法/水压分布/地震稳定/粘弹性理论Key words
along river rock slope/overturning stability/pseudo-dynamic method/water pressure distribution/seismic stability/viscoelastic theory分类
交通工程引用本文复制引用
陈立伟,安彦勇,赵靓,张宇亭..基于改进拟动力法的沿河岩石边坡地震抗倾覆稳定性分析[J].水道港口,2023,44(5):819-827,9.基金项目
国家自然科学基金项目(51978305) （51978305）
中央级公益性科研院所基本科研业务费项目(TKS20200302) （TKS20200302）
