摘要
针对路堑高边坡加固工程,采用理论分析+数值模拟方式对加固方案进行了设计优化和稳定性评估,结果表明:采用6级高边坡加固方案时,边坡在自然和降雨工况下的安全系数分别为1.25和1.08,预应力锚索和锚杆未对边坡滑移带起到明显的加固作用,边坡在降雨工况时处于不稳定状态;将6级高边坡加固方案调整为7级高边坡加固方案后,边坡在自然和降雨工况下的安全系数分别为1.43和1.21,预应力锚索和锚杆的锚固长度均穿过了潜在危险区,边坡处于稳定状态,表明优化设计后的路堑高边坡工程加固方案合理可行。
In view of a high cutting slope reinforcement project,the design optimization and stability evaluation of the reinforcement scheme are carried out by theoretical analysis and numerical simulation.The results show that the safety factors of the slope under natural and rainfall conditions are 1.25 and 1.08 respectively when adopting the reinforcement scheme of grade 6 high slope,and the prestressed anchor cable and anchor rod do not play an obvious role in strengthening the sliding zone of the slope The results show that the safety factor of the slope under natural and rainfall conditions is 1.43 and 1.21 respectively,and the anchorage length of prestressed anchor cable and anchor bolt passes through the potential danger area,and the slope is in stable state,which indicates that the reinforcement scheme of high cutting slope after optimization design is reasonable and feasible.
作者
万茂青
Maoqing Wan(Poly Changda Engineering Co.,Ltd.,Guangzhou 510000,China)
出处
《青海交通科技》
2021年第2期76-80,共5页
Qinghai Transportation Science and Technology
关键词
路堑高边坡
加固方案
数值模拟
安全系数
稳定性
high cutting slope
reinforcement scheme
numerical simulation
safety factor
stability
