不同降雨条件下高填方边坡稳定性的数值模拟分析  

Numerical Simulation Analysis of High Fill Slope Stability under Different Rainfall Conditions

作　　者：马文成 MA Wen-cheng(China Highway Engineering Consulting Corporation,Beijing 100080,China)

机构地区：[1]中国公路工程咨询集团有限公司,北京100080

出　　处：《价值工程》2025年第5期19-21,共3页Value Engineering

摘　　要：本研究通过数值模拟探索了不同降雨条件对高填方边坡稳定性的影响。研究基于降雨入渗基本理论分析,做好降雨工况设计,利用有限元软件PLAXIS 2D,模拟了多种降雨工况,包括降雨类型、降雨历时以及降雨强度的变化,详细评估了因素如何影响边坡的安全系数。结果显示,降雨强度和历时对边坡稳定性具有显著影响:短期高强度降雨显著降低安全系数,而降雨强度逐渐增大的模式增加了边坡失稳的风险,发现强调了在边坡设计和管理中,考虑降雨的特性和分布是至关重要的,为边坡工程提供了改进的防灾减灾措施和策略。This study explored the influence of different rainfall conditions on the stability of high fill slopes through numerical simulations.Based on the basic theory analysis of rainfall infiltration,the study designed rainfall conditions and used finite element software PLAXIS 2D to simulate various rainfall conditions,including changes in rainfall types,duration,and intensity.The study evaluated in detail how factors affect the safety factor of slopes.The results showed that rainfall intensity and duration have a significant impact on slope stability:short-term high-intensity rainfall significantly reduces the safety factor,while the pattern of gradually increasing rainfall intensity increases the risk of slope instability.It was found that considering the characteristics and distribution of rainfall is crucial in slope design and management,providing improved disaster prevention and mitigation measures and strategies for slope engineering.

关 键 词：降雨条件 高填方边坡 稳定性 数值模拟 

分 类 号：U416.14[交通运输工程—道路与铁道工程]