一种应用于高填方路基的锚定板挡土墙  

An Anchor Plate Retaining Wall Applied for High Fill Subgrade

作　　者：刘育新 LIU Yuxin

机构地区：[1]西安市政设计研究院有限公司,陕西西安700068

出　　处：《城市道桥与防洪》2020年第7期67-69,84,M0008,共5页Urban Roads Bridges & Flood Control

摘　　要：结合实际工程设计,对各种常规挡土墙的适用条件、优缺点及经济性进行了综合比较,在传统锚定板挡土墙的基础上,提出了一种应用于高填方路基的锚定板挡土墙。该挡土墙主要由肋柱、拉杆及挡土板等构件组成,依靠路基两侧肋柱之间的水平拉杆去平衡填土的水平土压力,能够有效降低挡土墙的基底应力,同时拉杆采用无黏结环氧涂层预应力钢绞线,该形式拉杆具有良好的耐久性,保证了结构的安全性。该锚定板挡土墙具有结构尺寸小、造价低、安全性高、耐久性好及施工效率高等优点,适用范围广,可为类似工程提供参考。Combined with the actual engineering design, the application conditions, advantages,disadvantages and economy of each conventional retaining wall are comprehensively compared. On the basis of traditional anchor plate retaining wall, an anchor plate retaining wall applied for high fill subgrade is proposed. This retaining wall is mainly composed of rib column, pull rod, breast board and other components. The horizontal pull rod between the rib columns at the both sides of subgrade is used to balance the horizontal soil pressure of the fill, which can effectively reduce the base stress of retaining wall.At the same time, the pull rod is made of unbounded epoxy coated pre-stressed steel strand. This kind of pull rod has the good durability and can guarantee the safety of structure. This anchor plate retaining wall has the advantages of small-sized structure, low cast, high safety, good durability and high construction efficiency. Its application range is wide. The reference can be provided for the similar projects.

关 键 词：锚定板挡土墙 高填方路基 预应力拉杆 挡土板 

分 类 号：U417.11[交通运输工程—道路与铁道工程]