多排玻璃钢夹砂管涵洞力学性能研究
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摘要
以双排管涵洞室内足尺试验与有限元理论为基础,建立三排管涵洞模型进行数值模拟。通过对不同工况下的多排管涵洞进行分析,探究多排管的受力状态与变形特征,同时探讨管涵间距对邻管变形产生的影响。由此得知多排管涵洞在加载条件下的最不利管涵及其最不利管涵的最不利部位,土体压实度与管涵间距会对多排管涵洞变形产生积极影响。为实际公路工程中选用多排玻璃钢夹砂管涵洞提供了设计依据与应用价值。
Based on the full-scale indoor test about double FRPM pipes culvert and finite element theory,the finite element numerical model of three FRPM pipes culvert is established for numerical simulation. Through the analysis of multiple pipes culvert under different working conditions,the stress state and deformation characteristics of multiple pipes are explored,and the influence of the pipe spacing on the deformation of adjacent pipe is also discussed. Therefore,the most unfavorable pipe and its most unfavorable part about multiple pipes culvert under loading conditions is known. The soil compactness and the pipe spacing have a positive impact on the deformation of multiple pipes culvert,which provide the design basis and practical value for the selection about multiple pipes culvert in practical highway projects.
Based on the full-scale indoor test about double FRPM pipes culvert and finite element theory,the finite element numerical model of three FRPM pipes culvert is established for numerical simulation. Through the analysis of multiple pipes culvert under different working conditions,the stress state and deformation characteristics of multiple pipes are explored,and the influence of the pipe spacing on the deformation of adjacent pipe is also discussed. Therefore,the most unfavorable pipe and its most unfavorable part about multiple pipes culvert under loading conditions is known. The soil compactness and the pipe spacing have a positive impact on the deformation of multiple pipes culvert,which provide the design basis and practical value for the selection about multiple pipes culvert in practical highway projects.
引文
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[15]玻璃纤维增强塑料夹砂管:GB/T 21238—2007[S].
[2]何江.大口径玻璃钢夹砂管在软土地基中的施工[J].中国市政工程,2005(3):61-63.
[3]公路涵洞设计细则:JTG/T D65-04-2007[S].
[4]王汪宇.玻璃钢夹砂管失效分析[D].广州:华南理工大学,2009.
[5]徐敏东.玻璃纤维增强玻璃复合材料研究[D].上海:东华大学,2011.
[6]张济源,郑彦军,石华旺,等.荷载作用下埋地玻璃钢夹砂管受力特征分析[J].玻璃钢/复合材料,2016(5):80-84,22.
[7]石华旺,魏连雨.玻璃钢夹砂管涵洞力学性能现场试验研究[J].广西大学学报(自然科学版),2017,42(4):1535-1540.
[8]段佳利.埋地玻璃钢夹砂管道力学性能的数值模拟[D].重庆:重庆大学,2013.
[9]魏连雨,张国盘,张济源,等.FRPM管涵力学特性试验与数值模拟研究[J].玻璃钢/复合材料,2016(8):73-77.
[10]梁军,张大林.非线性有限元法及实例分析[J].水利科技与经济,2007(4):222-224.
[11]刘世涛,程培峰.基于ABAQUS土体数值分析的本构模型[J].低温建筑技术,2010,32(2):90-92.
[12]ABAQUS在岩土工程中的应用(水利水电版)[J].岩土力学,2010,31(2):552.
[13]宫龙颖.ABAQUS接触问题浅析[J].中国煤炭,2009,35(7):66-68.
[14]贾哲.基于有限元分析的玻璃钢夹砂管道的强度分析和数值模拟辅助设计[D].南昌:南昌大学,2016.
[15]玻璃纤维增强塑料夹砂管:GB/T 21238—2007[S].