市政技术2023，Vol.41Issue(12)：56-65,10.DOI:10.19922/j.1009-7767.2023.12.056
狮子洋通道锚碇基础承载性能数值模拟研究
Numerical Simulation Study on the Bearing Capacity of the Anchorage Foundation of Shiziyang Bridge
朱正萍 1师启龙 2郭峰超 3刘永亮4
作者信息
- 1. 广东省公路建设有限公司,广东广州 510623
- 2. 中交公路长大桥建设国家工程研究中心有限公司,北京 100011
- 3. 广东湾区交通建设投资有限公司,广东广州 510623
- 4. 中交第二公路工程局有限公司,陕西西安 710065
- 折叠
摘要
Abstract
Taking the design scheme of Shiziyang Bridge anchorage as an example,finite element numerical analysis method is used to compare and analyze three design schemes of double cable circular anchorage,double cable 8-shaped anchorage,and four cable horizontal 8-shaped+group pile anchorage.The results show that the horizontal displacement value of the double cable circular anchorage design scheme is 0.66 cm,the one of the double cable 8-shaped anchorage design scheme is 0.87 cm,and the one of the four cable horizontal 8-shaped+group pile anchorage design scheme is 3.33 cm.The maximum principal compressive stress of the double cable circular anchorage design scheme is 5 213 kPa,and the maximum principal tensile stress is less than 2 200 kPa;The maximum principal compressive stress of the double cable 8-shaped anchorage design scheme is 4 122 kPa,and the maximum principal tensile stress is less than 2 200 kPa;There is a phenomenon of concentrated compressive stress and excessive ten-sile stress on the inner side of the pile top in the design scheme of four cable horizontal 8-shaped+group pile an-chorage.After comprehensive analysis,the design scheme of the double cable 8-shaped anchorage has good stress and economic benefits.At the same time,the design of theanchorage size has been optimized which indicate that design scheme of the anchorage optimized by 97 m diameter double cable 8-shaped anchorage is feasible.关键词
锚碇/设计方案/承载性能Key words
anchorage/design scheme/bearing capacity分类
交通运输引用本文复制引用
朱正萍,师启龙,郭峰超,刘永亮..狮子洋通道锚碇基础承载性能数值模拟研究[J].市政技术,2023,41(12):56-65,10.
