软土地基连续弯梁桥墩柱纠偏施工监控
|
摘要
软土地基环境下桥梁墩柱在不均匀受力下易发生侧位偏移,墩柱恢复过程受到土体状态等多种不确定性因素的影响,纠偏施工过程复杂,因此,施工中各项指标的监控尤为重要。以浙江某软土地基连续弯梁桥的墩柱纠偏施工过程为例,对整个过程中墩柱的顶底位移及垂直度等进行了施工监控。结果表明,双柱式桥墩墩柱顶底部共同顶推的纠偏效果相对明显,但需周密布置整个纠偏施工方案,并对整个纠偏过程进行安全性监控。
The bridge piers in the soft soil usually shift laterally under uneven force load. The restoration of pier columns is affected by various uncertainties such as soil condition,which causes complexity in the construction process. Therefore,the pier columns are especially important during construction. This paper is based on a program of pier rectification construction under soft soil foundation in Zhejiang province. The displacements and the perpendicularity of the piers were measured during the whole construction process for ensuring the safety of the piers. The results show that the correction effect of the common jacking on the top of the pier and the bottom of the double column pier is relatively obvious,but the whole rectification construction scheme should be arranged carefully,and the safety monitoring of the whole rectification process is carried out.
The bridge piers in the soft soil usually shift laterally under uneven force load. The restoration of pier columns is affected by various uncertainties such as soil condition,which causes complexity in the construction process. Therefore,the pier columns are especially important during construction. This paper is based on a program of pier rectification construction under soft soil foundation in Zhejiang province. The displacements and the perpendicularity of the piers were measured during the whole construction process for ensuring the safety of the piers. The results show that the correction effect of the common jacking on the top of the pier and the bottom of the double column pier is relatively obvious,but the whole rectification construction scheme should be arranged carefully,and the safety monitoring of the whole rectification process is carried out.
引文
[1]裴碧峰.某桥墩桩基偏位分析与纠偏实施效果[J].福建工程学院学报,2005,3(4):385-388.
[2]胡仁生.高速公路桥梁软土地基桥墩变位处治方法与应用[J].公路交通科技(应用技术版),2012(2):204-205.
[3]韩永军.桥梁纠偏技术在平定大桥中的应用研究[J].贵州大学学报(自然科学版),2012,29(2):132-135.
[4]田世清,石庆凡,唐赐明,等.李家湾大桥墩柱纠偏技术介绍[J].公路交通技术,2013(1):56-58.
[5]李光辉,王鹏.金湾大道高架桥墩柱偏位分析与纠偏处理[J].公路交通技术,2015(4):119-121.
[6]张军,蒋自强.分离式立体交叉桥纠偏加固处治——以遂资眉高速公路为例[J].四川建材,2016,42(2):180-182.
[7]徐飞,潘梦.连续弯桥墩柱纠偏技术研究[J].中外公路,2015,35(2):147-150.
[8]张天明.桥墩病害处治方法探索——重庆菜园坝长江大桥引桥桥墩的纠偏与加固记实[J].公路交通技术,2008(1):94-96.
[9]曾勇,田世清,唐赐明.连续梁桥桥墩纠偏顶推受力分析[J].中外公路,2013,33(3):86-88.
[10]侍刚,伍贤智.某桥桥墩桩基偏位纠偏方案设计与实施[J].桥梁建设,2015(1):97-102.
[11]邢小墨.高铁桥墩纠偏施工过程中监测指导的作用分析[J].上海铁道科技,2016(1):116.
[12]高文军,许长城.某连续梁桥桥墩偏位处治和加固[J].公路交通技术,2012(6):80-83.
[2]胡仁生.高速公路桥梁软土地基桥墩变位处治方法与应用[J].公路交通科技(应用技术版),2012(2):204-205.
[3]韩永军.桥梁纠偏技术在平定大桥中的应用研究[J].贵州大学学报(自然科学版),2012,29(2):132-135.
[4]田世清,石庆凡,唐赐明,等.李家湾大桥墩柱纠偏技术介绍[J].公路交通技术,2013(1):56-58.
[5]李光辉,王鹏.金湾大道高架桥墩柱偏位分析与纠偏处理[J].公路交通技术,2015(4):119-121.
[6]张军,蒋自强.分离式立体交叉桥纠偏加固处治——以遂资眉高速公路为例[J].四川建材,2016,42(2):180-182.
[7]徐飞,潘梦.连续弯桥墩柱纠偏技术研究[J].中外公路,2015,35(2):147-150.
[8]张天明.桥墩病害处治方法探索——重庆菜园坝长江大桥引桥桥墩的纠偏与加固记实[J].公路交通技术,2008(1):94-96.
[9]曾勇,田世清,唐赐明.连续梁桥桥墩纠偏顶推受力分析[J].中外公路,2013,33(3):86-88.
[10]侍刚,伍贤智.某桥桥墩桩基偏位纠偏方案设计与实施[J].桥梁建设,2015(1):97-102.
[11]邢小墨.高铁桥墩纠偏施工过程中监测指导的作用分析[J].上海铁道科技,2016(1):116.
[12]高文军,许长城.某连续梁桥桥墩偏位处治和加固[J].公路交通技术,2012(6):80-83.