顶管钢管的壁厚设计及验算方法
摘要:采用顶管法施工的污水管道,管材如采用钢管,接头在工作井内焊接后顶进,钢管在顶进期间和使用期间的受力与钢筋混凝土承插管有很大区别。以力学原理为基础,根据钢管在顶进期间和运营期间的受力与变形特点,针对现行规范尚不完善之处,补充了施工期间的钢管应力计算方法和计算公式。对现行规范计算管道顶为黏性土时竖向土压力的计算公式提出了修正建议。给出了工程示例。
Abstract:For steel pipe line which is welded joint to a line and launched by jacking method, the incurred stresses under launching and service period are quite different from precast reinforced concrete pipe. Based on machenics theories, accounting for the characteristics of surrounding forces on pipe and displacement of the pipe under jacking or service periods, the designer presents new method to calculate stresses, offers several formula. There are also modifications presented for the comtemprary design specification in transverse earth load calculation formula.
中文标题:
顶管钢管的壁厚设计及验算方法
Design and Calculation Method for Steel Pipe Wall Thickness by Jacking Installation
作者:
陈继光,曲研
Chen Jiguang,Qu Yan
作者简介:陈继光,男,1966年生,汉族,安徽人,硕士,教授级高级工程师,主要从事市政岩土与桥隧工程设计与研究。E-mail:chenjg1OO@vip.sina.com
通讯地址:
广东省冶金建筑设计研究院, 广东广州 510080
GuangdongMetallurgicalandArchitecturalDesignInstitute,Guangzhou510080,Guangdong,China
中图分类号:TU992.02
doi:10.3969/j.issn.1007-2993.2016.06.001
出版物:岩土工程技术
收稿日期:2016-06-03
关键词:钢管,顶管,壁厚,设计,验算
Key words:steel pipe,pipe jacking,wall thickness,design,calculation
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