深基坑双排桩支护结构变形特性分析  

Analysis of Deformation Characteristics of Double Row Pile Support Structure in Deep Foundation Pits

作　　者：黄臣瑞 Huang Chenrui(Engineering Construction Center of Tangxia Town,Dongguan City,Dongguan,Guangdong 523710)

机构地区：[1]东莞市塘厦镇工程建设中心,广东东莞523710

出　　处：《江西建材》2024年第11期206-209,共4页

摘　　要：文中依托某深基坑工程项目,建立了基坑有限元模型,结合现场监测数据对基坑开挖后的支护结构变形情况进行分析。结果表明,项目双排桩支护结构变形接近悬臂式结构,与实测结果相比,数值模拟得到的桩顶最大水平位移偏小;双排桩加锚索支护结构,锚索入射角度对桩顶最大水平位移的影响较小;与双排桩前后桩间距为5 m的情况比较,前后间距为3.5 m时,桩顶最大水平位移减小了68.5%。Based on a certain deep foundation pit engineering project,a finite element model of the foundation pit was established,and combined with on-site monitoring data,the deformation of the support structure after excavation was analyzed.The results show that the deformation of the double row pile support structure in the project is close to that of a cantilever structure.Compared with the measured results,the maximum horizontal displacement of the pile top obtained from numerical simulation is smaller;The double row pile with anchor cable support structure has a relatively small impact on the maximum horizontal displacement of the pile top due to the angle of anchor cable incidence;Compared with the situation where the distance between the front and rear piles of double row piles is 5 meters,when the distance between the front and rear piles is 3.5 meters,the maximum horizontal displacement of the pile top is reduced by 68.5%.

关 键 词：深基坑 双排桩 锚索 变形特性 

分 类 号：TU473[建筑科学—结构工程]