摘要
某山区二级公路改扩建项目受线形和地形制约,设计方案中需开挖形成一单侧约94.7 m的岩质高边坡。由于该高边坡工点的特殊性和复杂性,设计阶段围绕其提出了5种处治方案,利用赤平极射投影和极限平衡法对各开挖方案进行了稳定性的定性判断和定量计算,并在确保边坡安全稳定的前提下对各设计方案的优缺点、经济性、可行性分别进行了详细的对比论述,分析过程和成果可为类似工程提供参考。
Restricted by the alignment and terrain,in the reconstruction and expansion project of a secondary mountainous highway,a high rock slope with one side of about 94.7 m needs to be excavated.Due to the particularity and complexity of the site of this high slope,five treatment schemes were proposed in the design stage.The qualitative determination and quantitative calculation of the stability of each excavation scheme were carried out by stereographic projection and limit equilibrium method.To ensure the slope′s safety and stability,the advantages,disadvantages,economy,and feasibility of each design scheme were compared and discussed in detail.The analysis process and result can provide a reference for similar engineering.
作者
李家欣
LI Jia-xin(China Road Huanghe(Shanxi)Transportation Hi-tech Group Co.,Ltd.,Taiyuan,Shanxi 030000,China)
出处
《山西交通科技》
2023年第1期67-71,83,共6页
Shanxi Science & Technology of Transportation
关键词
岩质高边坡
稳定性分析
赤平极射投影
极限平衡法
处治设计
high rock slope
stability analysis
stereographic projection
limit equilibrium method
treatment design
