土体塌陷范围对埋地管线影响的研究
|
摘要
土体塌陷是导致埋地管线破坏的重要原因之一。为分析土体塌陷时埋地管线的受力情况,通过ANSYS有限元软件,将管线模拟成四节点薄壳单元,用等效土弹簧来模拟无限长埋地管线的边界,采用均布荷载加载来模拟埋地管道上方土体的作用,分析了不同范围土体塌陷情况下埋地管道的受力特性。通过模拟分析了埋地管线的应力应变,得到了埋地管线的控制截面,可为埋地管线的设计提供一定的理论依据。
Land collapse was one of the important reasons leading to buried pipeline damage.In order to analyze the stress of the buried pipeline when the land was collapse,the pipelines simulated fourjoint thin shell unit,equivalent soil spring simulated indefinite-length buried pipeline 's boundary and uniform distribute load simulated the effect of land above the buried pipeline by ANSYS finite element software.The mechanical characteristics of buried pipeline were analyzed under different range of land collapse condition.The stress and strain of buried pipeline were analyzed and the control section of buried pipeline was obtained through simulation.It could provide certain theoretical basis for the design of buried pipeline.
Land collapse was one of the important reasons leading to buried pipeline damage.In order to analyze the stress of the buried pipeline when the land was collapse,the pipelines simulated fourjoint thin shell unit,equivalent soil spring simulated indefinite-length buried pipeline 's boundary and uniform distribute load simulated the effect of land above the buried pipeline by ANSYS finite element software.The mechanical characteristics of buried pipeline were analyzed under different range of land collapse condition.The stress and strain of buried pipeline were analyzed and the control section of buried pipeline was obtained through simulation.It could provide certain theoretical basis for the design of buried pipeline.
引文
[1]孙宇坤.邵煜地层变形对埋地管道的影响分析[J].中国给水排水,2008,24(7):52-56.
[2]柳春光,史永霞.沉陷区域埋地管线数值模拟分析[J].地震工程与工程振动,2008,28(4):178-183.
[3]张土乔,李洵,吴小刚.地基差异沉降时管道的纵向力学性状分析[J].中国农村水利水电,2003(7):46-48.
[4]陈国华,胡章文,李其朋.地基差异沉降下埋地管道的有限元分析与试验研究[J].安全与环境学报,2010,10(3):175-179.
[5]冷建成,周国强,张国威,等.地基沉降下管道的有限元应力分析[J].石油矿场机械,2012,41(4):80-83.
[6]史永霞.埋地管线在沉陷情况下的响应分析[D].大连:大连理工大学,2007.
[7]柳春光,冯晓波.采用等效弹簧边界分析埋地管线在沉陷情况下的反应[J].地震工程与工程振动,2009,29(6):197-202.
[8]张立明.Algor、Ansys在桥梁工程中的应用方法与实例[M].北京:人民交通出版社,2003.
[2]柳春光,史永霞.沉陷区域埋地管线数值模拟分析[J].地震工程与工程振动,2008,28(4):178-183.
[3]张土乔,李洵,吴小刚.地基差异沉降时管道的纵向力学性状分析[J].中国农村水利水电,2003(7):46-48.
[4]陈国华,胡章文,李其朋.地基差异沉降下埋地管道的有限元分析与试验研究[J].安全与环境学报,2010,10(3):175-179.
[5]冷建成,周国强,张国威,等.地基沉降下管道的有限元应力分析[J].石油矿场机械,2012,41(4):80-83.
[6]史永霞.埋地管线在沉陷情况下的响应分析[D].大连:大连理工大学,2007.
[7]柳春光,冯晓波.采用等效弹簧边界分析埋地管线在沉陷情况下的反应[J].地震工程与工程振动,2009,29(6):197-202.
[8]张立明.Algor、Ansys在桥梁工程中的应用方法与实例[M].北京:人民交通出版社,2003.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心