摘要
为了探究PC工法桩支护结构在深基坑开挖过程中的变形规律和内支撑竖向间距对支护结构变形的影响,以鄱阳湖某桥墩深基坑工程(开挖深度为15.95m)为例,重点对桩顶水平位移、桩身变形和支撑应力进行监测,并将监测数据与数值模拟结果进行对比,总结了PC工法桩的变形规律,验证了数值模拟手段的可行性。通过数值模拟分析不同内支撑间距和不同支撑数量对支护结构变形的影响,为多道内支撑式的支护结构设计提供参考。
In order to explore the deformation law of the PC pile support structure in the process of deep foundation pit excavation and the influence of the vertical spacing of internal supports on the deformation of the support structure,taking a deep foundation pit project of a bridge pier in Poyang lake(the excavation depth is 15.95m)as an example,the horizontal displacement of the pile top,the deformation of the pile body and the support stress were monitored,and the monitoring data were compared with the numerical simulation results,and the deformation law of the PC pile was summarized,the feasibility of numerical simulation is verified.Through numerical simulation,the influence of different internal support spacing and different support number on the deformation of the support structure is analyzed,which provides a reference for the design of multi channel internal support support structure.
作者
张云舒
盛天浩
陆春华
张菊连
ZHANG Yun-shu;SHENG Tian-hao;LU Chun-hua;ZHANG Ju-ian(Faculty of Civil Engineering and Mechanics,Jiangsu University,212013,Zhenjiang,Jiangsu,China;Shanghai Horizon Construction Development Co.,Ltd.,201800,Shanghai,China)
出处
《建筑技术》
2023年第11期1302-1307,共6页
Architecture Technology
关键词
深基坑
PC工法桩支护
施工监测
数值模拟
优化设计
deep foundation pit
PC construction pile
construction monitoring
numerical simulation
optimization design
作者简介
张云舒(1998-),男,江苏盐城人,硕士,e-mail:1104429400@qq.com.
