泰州大桥中塔沉井基础承载力模型试验研究  

Physics model experimental research on the bearing capability of the middle tower caission foundation of Taizhou Bridge

作　　者：阮静[1,2] 胡丰[3] 

机构地区：[1]河海大学地球科学与工程学院,南京210098 [2]江苏省长江公路大桥建设指挥部,江苏泰州225321 [3]河海大学力学与材料学院,南京210098

出　　处：《中国工程科学》2012年第5期57-61,共5页Strategic Study of CAE

基　　金：国家科技支撑计划资助项目(2009BAG15B02)

摘　　要：泰州大桥中塔位于江中心,基础覆盖层高达200 m。通过多方面比选,基础采用58 m×44 m四角倒圆的矩形沉井,高76 m。为确保泰州大桥中塔沉井基础的安全和稳定,开展了1∶100的模型试验,获取了泰州大桥沉井极限承载力以及沉井埋深、土体含水量、侧壁摩阻力对极限承载力的影响。The foundation of the middle pylon of Taizhou Bridge is located above the overlying deposit with the height of 200 m in the water. The round rectangular caisson foundation with the plane dimension of 58 m × 44 m and the height of 76 m is employed. To verify the safety and stability of the middle pylon of Taizhou Bridge, a physics model with the scale of 1 ： 100 to the real structure is built up. The ultimate bearing capacity of the caisson foundation and the influence of sinking depth, soil moisture content, and the side wall friction on the bearing capacity are obtained.

关 键 词：沉井承载力 泰州大桥 物理模型试验 

分 类 号：U443.131[建筑科学—桥梁与隧道工程]