Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for reinforcing bridge abutment under soft foundation
The invention relates to a construction method for reinforcing a bridge abutment under a soft foundation. The construction method comprises the steps of dismantling filling soil behind the bridge abutment; driving reinforcing piles for reinforcing the soft soil foundation into two sides of the abutment in the range of the soft soil foundation along the longitudinal bridge direction; arranging temporary buttresses on a bearing platform of the bridge abutment, and jacking the main beam upwards through the temporary buttresses until the main beam is separated from an abutment body of the bridge abutment and rib plates; removing an abutment body and the rib plates of the abutment; sequentially installing newly-added piers and newly-added supports on the bearing platform from bottom to top; dismantling the temporary buttresses so as to enable the main beam to descend and be borne on the newly-added support; and in the longitudinal bridge direction, constructing a newly-built abutment at theend, which is close to the roadbed, of the soft soil foundation, and installing a newly-added main beam between the newly-built abutment and the newly-added support. According to the construction method, the problem in the prior art that under a soft soil foundation, when construction of the bridge abutment, the bridge pier and the main beam is completed, the abutment body and the rib plates crack due to inclination or differential settlement of the bridge abutment during filling construction behind the abutment can be solved.
本申请涉及一种软基下桥台加固施工方法，其包括如下步骤：拆除桥台的台后填土；沿纵桥向，在软土基础所在的范围内，在桥台两侧打入用于加固软土基础的加固桩；在桥台的承台上设置临时支墩，并通过临时支墩将主梁向上顶起，直至主梁与桥台的台身及肋板脱离；拆除桥台的台身及肋板；在承台上自下而上依次安装新增桥墩和新增支座；拆除临时支墩，以使主梁下降并承载在新增支座上；沿纵桥向，在软土基础靠近路基的一端，施工新建桥台，并在新建桥台与新增支座之间安装新增主梁。本申请可以解决相关技术中在软土地基下，且桥台、桥墩以及主梁均已施工完成时，在进行台后填土施工时，因桥台发生倾斜或不均匀沉降，造成台身和肋板开裂的问题。
Construction method for reinforcing bridge abutment under soft foundation
The invention relates to a construction method for reinforcing a bridge abutment under a soft foundation. The construction method comprises the steps of dismantling filling soil behind the bridge abutment; driving reinforcing piles for reinforcing the soft soil foundation into two sides of the abutment in the range of the soft soil foundation along the longitudinal bridge direction; arranging temporary buttresses on a bearing platform of the bridge abutment, and jacking the main beam upwards through the temporary buttresses until the main beam is separated from an abutment body of the bridge abutment and rib plates; removing an abutment body and the rib plates of the abutment; sequentially installing newly-added piers and newly-added supports on the bearing platform from bottom to top; dismantling the temporary buttresses so as to enable the main beam to descend and be borne on the newly-added support; and in the longitudinal bridge direction, constructing a newly-built abutment at theend, which is close to the roadbed, of the soft soil foundation, and installing a newly-added main beam between the newly-built abutment and the newly-added support. According to the construction method, the problem in the prior art that under a soft soil foundation, when construction of the bridge abutment, the bridge pier and the main beam is completed, the abutment body and the rib plates crack due to inclination or differential settlement of the bridge abutment during filling construction behind the abutment can be solved.
本申请涉及一种软基下桥台加固施工方法，其包括如下步骤：拆除桥台的台后填土；沿纵桥向，在软土基础所在的范围内，在桥台两侧打入用于加固软土基础的加固桩；在桥台的承台上设置临时支墩，并通过临时支墩将主梁向上顶起，直至主梁与桥台的台身及肋板脱离；拆除桥台的台身及肋板；在承台上自下而上依次安装新增桥墩和新增支座；拆除临时支墩，以使主梁下降并承载在新增支座上；沿纵桥向，在软土基础靠近路基的一端，施工新建桥台，并在新建桥台与新增支座之间安装新增主梁。本申请可以解决相关技术中在软土地基下，且桥台、桥墩以及主梁均已施工完成时，在进行台后填土施工时，因桥台发生倾斜或不均匀沉降，造成台身和肋板开裂的问题。
Construction method for reinforcing bridge abutment under soft foundation
一种软基下桥台加固施工方法
LYU HONGKUI (Autor:in) / LI OU (Autor:in) / DONG XIAOBING (Autor:in) / SHI GANG (Autor:in) / PENG XUMIN (Autor:in) / LI LONGLI (Autor:in) / LI LIJUAN (Autor:in) / WU XIAOHUI (Autor:in) / ZHANG KAIGE (Autor:in) / HE ZUFA (Autor:in)
04.09.2020
Patent
Elektronische Ressource
Chinesisch
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