土工基础

›› 2016, Vol. 30 ›› Issue (6): 645-647.

• 工程实录 • 上一篇    下一篇

锚索格构梁技术在重力式桥台翼墙外倾加固中的应用

徐洪科1，陈陆平1，王华俊2   

  1. （1.浙江宁波甬台温高速公路有限公司，浙江宁波 315040；2.浙江省工程勘察院，浙江宁波 315012）
  • 收稿日期:2016-08-26 修回日期:2016-09-24 出版日期:2016-12-20 发布日期:2016-12-22
  • 作者简介:徐洪科（1974-），男，高级工程师，研究方向为桥梁隧道高边坡养护。

Application of Ground Anchor with Lattice Beam in the Rehabilitation of a Tilted Wingwall of a Gravity Bridge Abutment

XU Hongke1, CHENG Luping1, WANG Huajun2   

  1. (1.Ningbo, Zhejiang, NingboTaizhouWenzhou Expressway Co., Ltd., Ningbo 315040;
    2.Zhejiang Engineering Investigation Institute, Ningbo 315012)
  • Received:2016-08-26 Revised:2016-09-24 Online:2016-12-20 Published:2016-12-22

摘要： 经过多年的运营，早期建设的重力式桥台出现不同程度的质量问题，影响了高速公路的安全。锚索格构梁作为一种比较成熟的施工技术，在多数工程治理领域被广泛采用，而采用锚索对拉格构梁技术对重力式桥台进行加固的案例在国内还较少。结合甬台温高速公路K1535+478板拱桥重力式桥台翼墙外倾加固实例，简述锚索对拉+格构梁加固重力式桥台的施工工艺。实践证明该技术对解决桥台翼墙外倾问题具有较好效果，且施工期间不影响高速公路通行，对类似的工程具有一定的借鉴意义。

关键词: 重力式桥台, 翼墙外倾, 开裂, 钻孔, 锚索对拉

Abstract: After years of service period, some of the gravity abutments demonstrate various degrees of performance issues that might be adversely affect the safe operation of highways. The lattice bean with ground anchor is a relatively popular and matured method and is widely applied in various mitigation projects. The tension ground anchor with lattice beams at both sides of abutment approach is rarely used. A tilted gravity abutment wingwall at Station K153+478 of YongTaiWen Expressway was rehabilitated by using this technique. The design and construction procedures of the tensioned ground anchor with lattice beam are introduced in this paper and the results are satisfactory.

Key words: Gravity Bridge Abutment, Tilted Wingwall, Cracked Surface, Bore Holes, Prestressed Ground Anchors