水中大体积V 型墩斜腿组合式支撑体系下施工技术研究

刘宝龙

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铁道工程学报 ›› 2011, Vol. 28 ›› Issue (3) : 52-57.

路网研究

水中大体积V 型墩斜腿组合式支撑体系下施工技术研究

刘宝龙

作者信息 +

Research on Construction Technology of Massive V － shape Pier in Water under Slant － leg Combined Supporting

LIU Bao － long

Author information +

文章历史 +

摘要

研究目的：针对铁路客运专线V 型墩刚度大、线形精度要求高的特点，通过研究水中大体积V 型墩斜腿施工时的支撑体系和混凝土浇筑方法，确保其线形精度小于1 cm，且斜腿根部不开裂。

研究结论: ( 1) 以桩基础与混凝土支墩作为竖向承力结构，以精轧螺纹钢水平预应力索作为抵消水平推力的综合承力体系保证了分层现浇施工期间V 型墩斜腿大体积混凝土现浇时梁部小于1 cm 的线形精度和斜腿根部不开裂。( 2) 一种可单端张拉的锚箱实现了对桥梁斜腿张拉时的无损伤; 避免了端头搭拆专用工作平台，且张拉操作容易，保证了安全和快速施工，同时提供了作业人员良好施工环境。

Abstract

Research purposes: According to the characteristics of large stiffness and high requirement of the line shape of V － shape pier of passenger dedicated line，the research was done on the supporting system and casting method for construction of the massive V － shape pier and slant － leg to ensure that the line shape inaccuracy was within 1cm and the root of slant － leg had no crack．

Research conclusions: ( 1) By taking the pile foundation and concrete supporting pier as vertical Load － carrying structure and taking the fine rolled twisted horizontal prestressed cable as comprehensive load － carrying system to offset horizontal thrust，it was ensured that the line shape inaccuracy of beam was within 1cm and the root of slant － leg had no crack during construction of massive concrete of V － shape pier and slant － leg． ( 2) By using a kind of one － end tensioned anchor box，the slant － leg could be tensioned without damage and it was unnecessary to build the working platform at the end of the pier． In addition，it was easy to do the tension work． In this way，the construction was more safe and faster，and the construction environment was better．

导出引用

刘宝龙. 水中大体积V 型墩斜腿组合式支撑体系下施工技术研究[J]. 铁道工程学报, 2011, 28(3): 52-57

LIU Bao － long. Research on Construction Technology of Massive V － shape Pier in Water under Slant － leg Combined Supporting[J]. Journal of Railway Engineering Society, 2011, 28(3): 52-57

中图分类号： U24

参考文献

［1］周永军．无平衡塔架V 形墩施工技术［J］．铁道建筑技术，2007( 2) : 48 － 51．

Zhou Yongjun． Construction Technology of V － Shaped Pier with Unbalanced Gantry［J］． Railway Construction Technology，2007( 2) : 48 － 51．

［2］秦桂芳．简述广州新光大桥两V 型墩的不同施工方法［J］．山西建筑，2008( 12) : 330 － 331．

Qin Guifang． Discussion on the Different Construction Methods of Two － V Piers of Xinguang Bridge in the City of Guangzhou［J］． Shanxi Architecture，2008( 12) :330 － 331．

［3］勾红叶，蒲黔辉，施洲．大跨度V 形刚构拱组合桥V 形墩梁节点模型试验研究［J］．土木工程学报，2010( 3) : 99 －105．

Gou Hongye，Pu Qianhui，Shi Zhou． Model Test for the V － shape Pier － girder Joint of Long － span V －shape Rigid Frame Composite Arch Bridges［J］． China Civil Engineering Journal，2010( 3) : 99 － 105．

［4］胡国伟，张宇宁，张俊兵，等．大跨度复杂结构桥梁施工全过程结构空间受力特性研究［J］．铁道工程学报，2010( 3) : 43 － 48．

Hu Guowei， Zhang Yuning， Zhang Junbing， etc．Research on the Space Stress － distribution Characteristics of Long － span and Complex Structure Bridge during the Whole Construction Process［J］．Journal of Railway Engineering Society，2010( 3) : 43 －48．

［5］焦宁艳．阜阳泉河大桥V 形墩及0 号段施工技术［J］．施工技术，2009( 5) : 61 － 79．

Jiao Ningyan． Construction Technology of V － shaped Piers and No． 0 Segment of Fuyang Quanhe Bridge［J］．Construction Technology，2009( 5) : 61 － 79．

［6］李英俊，胡国伟． V 型墩水平预应力索单端张拉工艺研究［J］．科技情报开发与经济，2008( 5) : 208 － 209．

Li Yingjun，Hu Guowei． Research on Single － ended Stretching Technology of Horizontal Prestressed Cable of V － shape Pier［J］． The Development and Economy of Science Information，2008( 5) : 208 － 209．

［7］王广建．韩江特大桥深水V 型墩顶主梁0 号块支撑体系设计［J］．铁道建筑技术，2009( 5) : 5 － 8．

Wang Guangjian． Support System Design of Hanjiang Extra － long Bridge V － type Pier Cap Main Beam 0#Block in Deep Water ［J］． Railway Construction Technology，2009( 5) : 5 － 8．

［8］潘寿东．连续刚构桥V 型墩“平衡支架法”施工技术研究［J］．石家庄铁道学院学报，2005( 4) : 100 － 104．

Pan Shoudong． Construction Technology of V － shaped Pier for Continuous Rigid Bridge with Balanced Trestle Method［J］． Journal of Shijiazhuang Railway Institute，2005( 4) : 100 － 104．

［9］胡国伟，张宇宁，程文斌，等．大跨度连续刚构桥V 型墩施工过程仿真技术研究与应用［J］．中国铁路，2008( 5) :27 － 29．

Hu Guowei，Zhang Yuning，Cheng Wenbin，etc． Study and Application of Simulation Technology for V － Type Pier Construction Procedure in Large － span Continuous Rigid － frame Bridge［J］． Chinese Railways，2008( 5) : 27 － 29．

［10］赵顺波，刘世明，杨竹林，等． V 型墩连续刚架桥的造型与结构方案设计研究［J］．河南大学学报( 自然科学版) ，2010( 1) : 101 － 104．

Zhao Shunbo，Liu Shiming，Yang Zhulin，etc． Study on Design of Shape and Structural Project of Continuous Rigid － Framed Bridge with V － Shaped Piers［J］．Journal of Henan University ( Natural Science) ，2010( 1) : 101 － 104．