摘要
我国经济快速发展,铁路网不断完善,高铁建设步伐日益加快。在高铁建设过程中,经常遇到高铁下穿公路桥的情况,为了保障公路桥的安全,常采用围护桩支护的方式。论文采用有限元数值模拟的方法,分析围护桩支护后桥墩的稳定性,从而判断公路桥梁的安全性。计算结果表明:桥墩位移很小,围护桩的受力符合预期规律,开挖采用围护桩支护方式能够满足工程需要。本研究对类似工程实际问题具有重要指导意义。
China’s economic developed rapidly, the railway network continuous improved, the pace of construction of high-speed rail is accelerating. In the process of high-speed rail construction, we often encounter the situations that the high-speed rails underpass highway bridges. In order to ensure the safety of highway bridges, usually using retaining pile support method. The paper using the finite element numerical simulation method, analyzes the stability of piers after support of retaining piles, to judge the safety of highway bridges. The calculation proves that the displacement of the bridge pier is very small and the force of the retaining pile conforms to the expected law, excavation adopts retaining pile support method can meet engineering needs. This study has important guiding significance for the practical problems of similar projects.
作者
安延伟
王永彬
AN Yan-wei;WANG Yong-bin(The 2nd Engineering Co.Ltd.of China Railway 3rd Bureau Group,Shijiazhuang 050031,China)
出处
《工程建设与设计》
2019年第1期123-124,127,共3页
Construction & Design for Engineering
关键词
高铁
围护桩
公路桥
数值模拟
high speed railway
retaining pile
highwaybridge
numerical simulation
