[1]李 斌,于洪兴,肖成志.加筋防护埋地管道静载特性的数值模拟与参数分析[J].河北工业大学学报,2019,48(04):91-96.[doi:10.14081/j.cnki.hgdxb.2019.04.014]
 LI Bin,YU Hongxing,XIAO Chengzhi.Numerical simulation and parameters analysis of protection performance of buried pipes reinforced with geogrid under static loading[J].Journal of Hebei University of Technology,2019,48(04):91-96.[doi:10.14081/j.cnki.hgdxb.2019.04.014]
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加筋防护埋地管道静载特性的数值模拟与参数分析
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《河北工业大学学报》[ISSN:1007-2373/CN:13-1208/T]

卷:
48
期数:
2019年04期
页码:
91-96
栏目:
土木工程
出版日期:
2019-08-25

文章信息/Info

Title:
Numerical simulation and parameters analysis of protection performance of buried pipes reinforced with geogrid under static loading
文章编号:
1007-2373(2019)04-0091-06
作者:
李 斌1于洪兴1肖成志2
(1.天津市公路工程设计研究院,天津 300170;2.河北工业大学 土木与交通学院,天津 300401)
Author(s):
LI Bin1 YU Hongxing1 XIAO Chengzhi2
(1. Tianjin highway Engineering Design Research Institute, Tianjin 300170, China; 2. School of Civil Engineering and Transportation,Hebei University of Technology, Tianjin 300401,China)
关键词:
埋地管道加筋防护数值模拟筋材静载
Keywords:
buriedpipesreinforcedprotectionnumericalsimulationreinforcementstaticloading
分类号:
TU431
DOI:
10.14081/j.cnki.hgdxb.2019.04.014
文献标志码:
A
摘要:
目前城市市政工程埋地管道的安全与防护是管理部门日益关注的重点,论文基于有限元数值模拟 了静载作用下格栅加筋防护埋地管道的力学响应,综合对比研究了筋材埋深、长度和加筋层数等因素对 埋地管道的力学与变形影响,数值计算结果表明:综合管道应力、变形和加载板极限承载力,确定了顶层 筋材最佳埋深和长度分别为0.4倍加载板宽度和5倍管道外径;同等条件下,增加格栅加筋层数,地表加 载板极限承载力显著增加,且在距中心点相同距离时,底层筋材的应力最大,顶层筋材的应力相对较小。
Abstract:
Safetyandsustainabilityofburiedpipeshasbecomemoreimportantduetotheincreaseofthereportedpipe failureincidents.Basedonthenumericalstudyinthepaper,theperformanceofburiedpipesreinforcedwithgeogrids wasinvestigatedtounderstandtheeffectofembedmentdepth,lengthofgeogridandlayersofreinforcementonthedefor? mationcharacteristicsoftheburiedpipes.Theresultsindicatedthattheoptimumburialdepthandlengthofgeogridfor theupperlayerofgeogridwere0.4timeswidthofloadingplateand5timesouterdiameterofpipe,respectively. The bearingcapacityatthesurfaceabovethepipewillincreasewiththeincreaseofthenumberoflayersofgeogrid,andthe stressofthebottomlayerofgeogridishigherthantheupperlayeraboveburiedpipes.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-03-09 基金项目:天津市交通运输科技发展计划项目(2018-09);河北省自然基金(E2018202108) 作者简介:李斌(1977—),男,高级工程师,1186785901@qq.com。通信作者:肖成志(1976—),男,教授,chengzhixiao@hotmail.com。
更新日期/Last Update: 2019-10-04