垭坝大桥应急抢险临时支撑及加固技术研究*
  • 作者: 党权交,何思元,金磊,等
论文摘要

垭坝大桥应急抢险临时支撑及加固技术研究*

党权交1,何思元2,金磊2,雷栋2

(1中交路桥建设有限公司,北京 1000272.中交路桥华东工程有限公司,上海 201210)

[摘要]依据垭坝大桥发生的险情,结合桥址位于低山侵蚀沟谷大起伏基岩区特殊的地理位置,对其险情发生诱因及造成的病害进行详细调查与研究。通过研究比选,结合抢险工程的特点,因地制宜制定适用于垭坝大桥应急抢险工程的临时支撑方案,详细介绍了集束支架和大钢管架临时支撑设计、施工及监测。根据病害分别采用临时支撑、拆除重建和空间复位等加固措施。

[关键词]桥梁工程;应急抢险;临时支撑;加固

[中图分类号]TU745    [文献标识码]A    [文章编号]1002-8498(2021)08-0076-05

Research on Emergency Rescue Temporary Support and Reinforcement Technology of Yaba Bridge*

DANG Quanjiao1, HE Siyuan2, JIN Lei2, LEI Dong2 

(1.Road & Bridge International Co., Ltd.Beijing 100027,  China; 2.CCCC Road & Bridge East China Engineering Co., Ltd.Shanghai 201210, China)

Abstract:Based on the dangers of the Yaba Bridge, detailed investigations and studies on the causes of the dangers and the diseases are carried out combined with the special geographical location of the bridge site in the large undulating bedrock area of low mountain eroded valleys. Through research, comparison and selection, combined with the characteristics of emergency rescue projects, the temporary support plan,  maintenance and reinforcement plan suitable for the emergency rescue project of the Yaba Bridge are formulated according to local conditions. Authors introduced temporary support with bundles support and large steel pipe support, including design, construction and monitorng. Then reinforce measures are adopted such as temportary support, demolition and reconstruction as well as spatial transformation.

Keywords:bridges; emergency rescue; temporary support; reinforcement

*中交路建科技研发项目:基岩滑坡导致挤竖病害应急抢险施工技术研究(ZJLJ-2021-43)

[作者简介]党权交,高级工程师,Email: 1262339279@qq.com

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