摘要
人工高切坡安全问题在我国工程建设中广泛存在,遇到这类问题,一般需事先对高切坡进行安全评估,在此基础上决定是否对其进行加固设计,以确保建设场地及其相关的工程构筑物在营运期间的安全。针对南京云狐云时代中心南京仙林智慧谷项目边坡工程的高切坡施工与防护工程实际,对边坡失稳机理进行研究,并基于地质勘查和调研数据,运用极限平衡法对切坡后的边坡稳定性进行计算分析。结果 表明,在坡体岩性结构类似的情况下,边坡切坡高差对边坡稳定性影响较大,切坡高差较大时,需采取相应防治措施消除安全隐患。
The stability of high-cut slope is an important safe issue which exists extensively.In order to ensure that the foundation structure can work safely,a forehand safety assessment of high-cut slope is necessary,because we can decide whether reinforcement measures are necessary based on the assessment.According to the actual conditions of high-cut slope construction and protection in the slope engineering of Nanjing Xianlin Wisdom Valley,the slope instability mechanism was studied,and based on the data of geological exploration and investigation,the slope stability after cutting was calculated and analyzed by the limit equilibrium method.The results indicate that the height of slop cutting has very strong influence on the slope stability at similar lithology,the larger the height,the greater the risk.Based on the above,prevention measures are provided to eliminate security risks.
作者
刘永
LIU Yong(China Railway 25th Bureau Group 2nd Engineering Co.Ltd.,Nanjing Jiangsu 210046,China)
出处
《铁道建筑技术》
2020年第S01期32-35,共4页
Railway Construction Technology
基金
中铁二十五局集团科技研究开发计划项目(25G-2019-05)
关键词
高切坡
边坡稳定性
削坡
锚杆格构
防治措施
high-cut slope
slope stability
slope cutting
anchor lattice
treatment measure
