预应力管桩作为公路声屏障基础的抗风稳定性计算研究  

Calculation and Research on Wind-resistant Stability of Prestressed Pipe Pile as Highway Sound Barrier Foundation

作　　者：邢明明[1] XING Ming-ming(Heilongjiang Provincial Highway Survey and Design Institute,Harbin,Heilongjiang 150080,China)

机构地区：[1]黑龙江省公路勘察设计院,黑龙江哈尔滨150080

出　　处：《黑龙江交通科技》2023年第9期10-13,共4页Communications Science and Technology Heilongjiang

摘　　要：为了研究预应力管桩作为公路声屏障基础的抗风稳定性,结合鹤岗至哈尔滨高速公路鹤岗至伊春段工程声屏障案例,考虑风荷载作用、预应力管桩外侧路基边坡的影响和桩土共同作用,依据抗滑桩理论,进行预应力管桩声屏障基础的抗风稳定性计算。计算结果表明预应力管桩最大弯矩满足《预应力混凝土管桩技术标准》要求,桩顶容许变形满足《公路滑坡防治设计规范》要求,验证了预应力管桩作为公路声屏障基础的可行性,设计成果已在鹤岗至哈尔滨高速公路鹤岗至伊春段工程中应用,研究成果可在其他公路项目上推广。In order to study the wind-resistant stability of prestressed pipe piles as a foundation for highway sound barriers,combined with the case study of the Hegang Yichun section of the Hegang Harbin Expressway sound barrier project,considering the effects of wind load,the influence of the roadbed slope outside the prestressed pipe piles,and the combined effect of piles and soil,based on the theory of anti-slip piles,the wind-resistant stability calculation of the prestressed pipe pile sound barrier foundation was carried out.The calculation results indicate that the maximum bending moment of the prestressed pipe pile meets the requirements of the"Technical Standards for Prestressed Concrete Pipe Piles",and the allowable deformation of the pile top meets the requirements of the"Design Specification for Highway Landslide Prevention and Control".This verifies the feasibility of the prestressed pipe pile as a foundation for highway sound barriers.The design results have been applied in the Hegang Yichun section of the Hegang Harbin Expressway,and the research results can be promoted in other highway projects.

关 键 词：声屏障 预应力管桩 抗风稳定 土侧压力 

分 类 号：U416.1[交通运输工程—道路与铁道工程]