面向桥梁建设的钻孔灌注桩施工方案设计及应用研究  

Design and Application Research of Bored Pile Scheme for Bridge Construction

作　　者：姜贵彬 JIANG Gui-bin(Shencheng Road&Bridge Construction Group Co.Ltd.,Baoding 071000,China)

机构地区：[1]申成路桥建设集团有限公司,河北保定071000

出　　处：《工程建设与设计》2024年第11期134-136,共3页Construction & Design for Engineering

摘　　要：针对桥梁建设的钻孔灌注桩施工相对复杂,且存在较大风险等问题,论文对钻孔灌注桩的施工流程和设计要点进行了分析,采用旋挖成孔法和后注浆钻孔灌注桩方案。结果表明,旋挖成孔法在保证桩孔质量的同时,施工速度快,且具有较强的适用性。在3种不同的桩长58.4 m、58.7 m和63.8 m下,后注浆钻孔灌注桩的沉降均远远小于未注浆的沉降,具有更好的承载力。In response to the relatively complex and high-risk construction of drilled cast-in-place piles in bridge construction,this paper analyzes the construction process and design points of drilled cast-in-place piles,and adopts the rotary excavation method and post grouting drilling cast-in-place pile scheme.The results indicate that the rotary drilling method not only ensures the quality of pile holes,but also has a fast construction speed and strong applicability.Under three different pile lengths of 58.4 m,58.7 m,and 63.8 m,the settlement of the post grouting drilled pile is much smaller than that of the non grouting pile,indicating better bearing capacity.

关 键 词：钻孔灌注桩 桥梁建设 施工方案设计 旋挖成孔法 

分 类 号：TU753[建筑科学—建筑技术科学] U445.55[建筑科学—桥梁与隧道工程]