作者：李友明1, 郑杰元1, 陈建军1, 王鹏2
作者单位：1. 中铁二局股份有限公司, 四川成都 610031;
2. 铁科院(北京)工程咨询有限公司, 北京 100081
关键词：预应力; 塑料波纹管; 摩阻测试; 成孔工艺; 技术要点
摘要：
采用塑料波纹管作为预应力管道是配套真空辅助压浆技术的技术措施。在介绍杭州湾跨海大桥Ⅹ合同50m箱梁预应力管道摩阻试验、锚具摩阻试验方案和方法的基础上,对测试数据进行了分析、处理,并与设计和施工规范要求进行了对比分析。结合管道摩阻和锚具摩阻产生的原理,总结了塑料波纹管成孔工艺的技术要点。
Frictional resistance test study of plastic prestressed duct
LI You-ming1, ZHENG Jie-yuan1, CHEN Jian-jun1, WANG Peng2
1. China Railway Erju Co. Ltd., Chengdu 610031, China;
2. Beijing Engineering Consulting Limited Company, China Academy of Railway Sciences, Beijing 100081, China
Abstract: The prestressed duct was a technical measure of duct grouting by vacuum method.This paper presented frictional resitance test method of prestressed duct and anchor about 50m box girder of the hangzhou bay bridge.By analysisng the data,the actual frictional resisrance was obtained and compared with design and construetion standard.Through studying the components of the prestressed duct and anchor,the key construction technical point of duct was summarized.
Keywords: Prestressi plastic duct; Frictional resistance; Hole-forming technology; Key point
2006, 6(32): 32-35,128 收稿日期: 2006-4-2;收到修改稿日期: 2006-6-14
基金项目:
作者简介: 李友明(1968-),男,高级工程师,主要从事桥梁工程施工。
参考文献
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[2] JTG D62-2004,公路钢筋混凝土及预应力混凝土桥涵设计规范[S].北京:人民交通出版社.
[3] JTJ041-2001,公路桥涵施工技术规范[S].北京:人民交通出版社.
[4] 杭州湾跨海大桥专用施工技术规范及验收评定标准[S].2005.
