Ⅳ型拉森钢排桩结合锚杆支护在桥梁中的应用  

Application of TypeⅣLassen Steel Sheet Pile Combined with Anchor Rod Support in Bridges

作　　者：朱劲松 陈晓琳 ZHU Jinsong;CHEN Xiaolin(Heilongjiang Tonghe Road Maintenance Segment,Harbin,Heilongjiang 150000,China;Heilongjiang Transportation Information and Science Center,Harbin,Heilongjiang 150080,China)

机构地区：[1]黑龙江省通河养路总段,黑龙江哈尔滨150000 [2]黑龙江省交通运输信息和科学研究中心,黑龙江哈尔滨150080

出　　处：《黑龙江交通科技》2024年第11期96-101,共6页Communications Science and Technology Heilongjiang

摘　　要：桥梁工程地基施工条件复杂且安全性要求较高,为满足半幅施工半幅通车需求,提出了一种结合IV型拉森钢排桩咬合与锚杆支护相结合的设计方案。在工程地质条件力学分析和稳定性评估基础上,优化桩体连接的节点设计和锚杆锚固方式以增强桩锚体系的连接刚度。模拟结果表明钢锚支护结构的整体力学性能抗拉强度提高了127 MPa,土体最大位移控制在3 cm以内。The foundation construction conditions of bridge engineering are complex and the safety requirements are high.In order to meet the demand of half widthconstruction and half widthtraffic,a design scheme combining type IV Lassen steel sheet pile occlusion and anchor rod support is proposed.On the basis of mechanical analysis and stability evaluation,the node design of pile connection and anchor bolt anchorage are optimized to enhance the connection stiffness of pile anchor system.The simulation results show that the overall mechanical property and tensile strength of the steel anchor support structure is improved by 127 MPa,and the maximum displacement of the soil is controlled within 3 cm.

关 键 词：桥梁工程 地基支护 拉森钢排桩 锚杆支护 力学性能 

分 类 号：U445.55[建筑科学—桥梁与隧道工程]