盾构穿越桥梁区域旧桩拔桩与新桩变形性状探讨  

Shield Tunnel Crossing Bridge Area Old Pile Pile Drawing with New Pile Deformation Properties

作　　者：皮景坤 Pi Jing-kun

机构地区：[1]郑州市轨道交通有限公司,郑州450000

出　　处：《建筑技术开发》2016年第8期90-93,共4页Building Technology Development

摘　　要：城市轨道交通工程建设中,常因线路与地面构建筑的基础结构冲突或过近而绕行或改线,给工程建设带来一定影响。通过对郑州市某地铁线路中穿越桥桩区进行研究,结合灌注桩拔除施工技术和新建桩基在盾构近距离穿越期间的性状变化,提出了盾构在类似地层情况下近接施工的建议。Urban rail transit construction projects,often because conflict lines and ground infrastructure building structures or too close or change the bypass line,to the construction of some impact.Zhengzhou City,a mainly for the subway lines across the bridge pile area studies,introduced the pile removal and new construction technology of pile change characters during close range through the shield,and proposed the formation of shield under similar circumstances proximity construction suggest.

关 键 词：桩基拔除 全套管回转钻 变形监测 ANSYSY模拟 

分 类 号：U455.3[建筑科学—桥梁与隧道工程]