球墨铸铁供水管线在地震作用下功能性实验分析

英文篇名：Experimental Research on Functionality of Ductile Cast Iron Pipelines Under the Earthquake
中文刊名：沈阳建筑大学学报(自然科学版)
英文刊名：Journal of Shenyang Jianzhu University(Natural Science)
作者：周静海 ; 赵海艳 ; 魏立群
英文作者：ZHOU Jinghai 1 ; ZHAO Haiyan 2 ; WEI Liqun 3 (1.School of Civil Engineering and Water Conservancy ; Dalian University of Technology ; Dalian China ; 116000 ; 2.School of Civil Engineering ; Shenyang Jianzhu University ; Shenyang China ; 110168 ; 3.Hongta Tobacco Limited Liability Company ; Liaoning Yingkou Cigarette Factory ; Yingkou China ; 115001)
中文关键词：铸铁管线 ; 水压 ; 接口位移 ; 拟合
英文关键词：ductile cast iron pipelines ; pressure ; joint displacement ; fitting
出版日期：2008-03-15
机构：大连理工大学土木与水利工程学院,沈阳建筑大学土木工程学院,红塔辽宁烟草有限责任公司营口卷烟厂辽宁大连116000,辽宁沈阳110168,辽宁营口115001
年：2008
期：02
出版单位：沈阳建筑大学学报(自然科学版)

摘要

目的通过对埋地球墨铸铁管线柔性接口抗拉静载实验研究,分析管线抗震功能性,建立管内水压与接口位移的数学模型.方法对采用胶圈连接的柔性接口球墨铸铁管线,在不覆土的情况下,分别进行了两种管径、注水的静载拉拔试验.结果通过试验研究可得出柔性接口管线内水压变化值与接口相对位移关系曲线,并分别对两种管径的六组水压-位移关系曲线取平均值,进行线性拟合和二次多项式拟合,建立数学模型.结论将线性拟合和二次多项式拟合进行误差比较分析,二次多项式拟合误差较小,线性拟合误差虽较大,但也能控制在±30%范围内,对于精度要求不是很高的实际工程中建议使用线性拟合模型.
Through experiments of flexible joint ductile cast iron pipelines,we analyzed the earthquake-resistant function of the pipelines and derived the mathematical expressions of the pressure and the displacement.We carried out the experiments of the two kinds of calibers,water injection under the situation without covering soil for the flexible joint of the ductile cast iron pipelines.We derived the pressure changing and the connection displacement relation curve,and separately calculated the average values of six groups of pressure-displacements curves of the two kinds of calibers,calculated the linear fitting and quadratic multinomial fitting,and derived the mathematical expressions.We compared the linear fitting error with the quadratic multinomial fitting error.The latter is smaller.Although the linear fitting error is bigger,it can be controlled within the scope of ±30%.It's suggested that in the actual projects the linear fitting model should be used.

引文

[1]李杰.生命线工程抗震——基础理论与应用[M].北京:科学出版社,2005.
    [2]王英,李诚.工程流体力学[M].长沙:中南大学出版社,2004.
    [3]宋,李丽娟,张贵文.建筑结构试验[M].重庆:重庆大学出版社,2003.
    [4]徐挺.相似方法及其应用[M].北京:机械工业出版社,1995.
    [5]Wang L R L,Sun Shaoping,Shen Shijie.Seismic dam-age behavior of buried lifeline systems during recent se-vere earthquakes in U.S.,CHINA and other countries[C]//Tech.Report No.ODU LEE-02.Oakland:Earthquake eng res inst,1985.
    [6]Sun Shaoping.The countermeasures against earthquakefor water supply[C]//Proceeding of 3rd China-Japan-U.S.Trilateral Symposium on Lifeline EarthquakeEngineering.USA:Earthquake Engineering and Struc-tural Dynamics,1998.
    [7]Duke C M,Moran D F.Guideline for evolution of life-lines earthquake engineering[C]//.Proceedings of U.S.National Conference on Earthquake Engineering.Oakland:Earthquake eng res inst,1975.
    [8]Hisashi S.System analysis of earthquake on water sup-ply network in Kobe City[C]//.Proceedings of the4th International Symposium on Water Pipe Systems,USA:Earthquake engineering and structural dynam-ics,1997.
    [9]吕文舫,郭雪宝,柯葵.水力学[M].上海:同济大学出版社,1990.