摘要
为适应高填方机场的建设需求,针对超高挡墙建设的难题,分析边坡深层抗滑稳定性的问题。通过计算分析,探讨软弱层土体强度参数的取值及层厚对边坡深层抗滑稳定性的影响,研究无软弱层时超高挡墙边坡的最不利滑动破坏模式。结果表明:(1)软弱层建模厚度与实际厚度略有偏差不会影响计算结果;(2)软弱层土体强度参数的取值对边坡深层抗滑的安全稳定性影响显著;(3)无软弱层时超高挡墙边坡最可能沿挡墙基底整体滑动。
In order to meet the construction needs of high-fill airports,the anti-sliding stability of deep slope is analyzed in view of the construction problem of ultra-high retaining wall.Through calculation and analysis,the influence of strength parameters of soft layer soil and layer thickness on anti-sliding stability of deep slope is discussed,and the most unfavorable sliding failure mode of super high retaining wall slope without soft layer is studied.The results show that:1)a slight deviation between the model thickness of soft layer and the actual thickness does not affect the calculation results;2)The strength parameters of soft layer soil have a significant influence on the safety and stability of the deep anti-sliding slope;3)When there is no soft layer,the super high retaining wall slope is most likely to slide along the whole retaining wall base.
作者
杨天凯
方天祥
YANG Tian-kai;FANG Tian-xiang(Power China Kunming Engineering Corporation Limited,Kunming 650051,China)
出处
《云南水力发电》
2023年第3期280-283,共4页
Yunnan Water Power
关键词
高填方机场
超高挡墙
边坡稳定
深层抗滑
high-fill airport
ultra-high retaining wall
slope stability
deep anti-slip
