竖直载荷作用下超长群桩载荷试验数值分析与实践应用——以乌鲁木齐绕城高速(西线)工程头屯河互通连接线特大桥工程为例  

Numerical Analysis and Practical Application of Super-long Pile Group Load Test under Vertical Load——Taking the Toutun River Interchange Connecting Line Extra-large Bridge of Urumqi Ring Expressway (West Line) Project as an Example

作　　者：张峰 侯圆 唐小强 尚福强 Zhang Feng;Hou Yuan;Tang Xiaoqiang;Shang Fuqiang(PowerChina Road&Bridge Group Co.,Ltd.,Urumqi,Xinjiang 830000)

机构地区：[1]中电建路桥集团有限公司,新疆乌鲁木齐830000

出　　处：《工程技术研究》2022年第18期224-226,共3页Engineering and Technological Research

摘　　要：在路桥工程建设中,随着新型公路桥梁中大跨和宽幅桥梁结构越来越多地被采用,现代桥梁跨度的日益增大,其上部的承载力也随之越来越大,这就对桥梁基础桩基的承载能力提出了更高的要求。文章结合乌鲁木齐绕城高速(西线)工程头屯河互通连接线特大桥主桥桩基工程实例,进行竖直载荷作用下超长群桩载荷试验数值分析,并将分析得到的桩基沉降规律用于指导乌鲁木齐绕城高速(西线)工程头屯河互通连接线特大桥超长群桩桩基的施工实践,取得了很好的效果,使超长桩基的施工更加便捷、高效,节约了人工、机械,提高了施工质量,可为今后类似的超长群桩工程施工提供借鉴和参考价值。In the construction of road and bridge engineering,with the increasing use of large-span and wide-width bridge structures in new highway bridges, the span of modern bridges is increasing, and the bearing capacity of the upper part is also increasing, which puts forward higher requirements for the bearing capacity of bridge basic pile foundation. Based on the pile foundation engineering example of the main bridge of the Toutun River interchange connecting line extra-large bridge in Urumqi ring expressway( west line) project, this paper makes a numerical analysis of the load test of super-long pile groups under vertical load, and uses the pile foundation settlement law obtained from the analysis to guide the construction practice of the pile foundation of super-long pile groups of the Toutun River interchange connecting line extra-large bridge in Urumqi ring expressway( west line) project and has achieved good results, making the construction of super-long pile foundation more convenient and efficient,saving labor and machinery, and improving construction quality, which can provide reference and referential value for similar super-long pile group engineering construction in the future.

关 键 词：竖直载荷 超长群桩 数值分析 特大桥工程 

分 类 号：TU47[建筑科学—结构工程]