隔断墙是深基坑工程实践中开始应用的一种主动保护邻近建筑物的措施,但目前对其设计参数的确定缺乏有效的理论指导,可验证其效果的实测资料也甚少。以杭州某深大基坑为背景,利用有限元分析软件ABAQUS,考虑施工工况、墙土接触,建立三维有限元模型,土体采用修正剑桥模型,对隔断墙的效果进行了深入研究,并通过工程实例计算结果和实测值的对比进行验证。研究结果表明,隔断墙可明显降低坑外地表最大沉降,减小地表沉降槽的面积,并显著减小邻近建筑物的横向角变量,对减弱开挖引起建筑物损害效果明显。隔断墙减小基坑侧壁中点附近的最大沉降“,”The partition wall is a kind of active structure to protect adjacent buildings from deep foundation pits.However there is a lack of theoretical guidance for the design of the structure,and there are few measured data to validate its effects.Based on a lar