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[1]高旭,姚安林,徐涛龙,等.覆土阻力对挖掘机损伤输气管道的动力响应研究[J].中国安全生产科学技术,2018,14(11):88-94.[doi:10.11731/j.issn.1673-193x.2018.11.014]
 GAO Xu,YAO Anlin,XU Taolong,et al.Study on dynamic response of gas pipeline damaged by excavator with covering soil resistance[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(11):88-94.[doi:10.11731/j.issn.1673-193x.2018.11.014]
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覆土阻力对挖掘机损伤输气管道的动力响应研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年11期
页码:
88-94
栏目:
职业安全卫生管理与技术
出版日期:
2018-11-30

文章信息/Info

Title:
Study on dynamic response of gas pipeline damaged by excavator with covering soil resistance
文章编号:
1673-193X(2018)-11-0088-07
作者:
高旭12姚安林13徐涛龙1付邦稳2周立国4
(1.西南石油大学 石油与天然气工程学院,四川 成都 610500;2.中国石化管道储运有限公司,江苏 徐州 221008;3.油气消防四川省重点实验室,四川 成都 610500;4.中石化大连石油化工研究院,辽宁 大连 113001)
Author(s):
GAO Xu12 YAO Anlin13 XU Taolong1 FU Bangwen2 ZHOU Liguo4
(1. College of Petroleum & Natural Gas Engineering, Southwest Petroleum University, Chengdu Sichuan 610500, China;2. Sinopec Pipeline Transportation and Storage Company, Xuzhou Jiangsu 221008, China;3. Oil and Gas Fire Protection Key Laboratory of Sichuan Province, Chengdu Sichuan 610500, China;4. Sinopec Dalian Research Institute of Petroleum and Petrochemicals, Dalian Liaoning 113001, China)
关键词:
覆土阻力挖掘损伤输气管道多体动力学仿真有限元动力响应分析
Keywords:
covering soil resistance damage by excavation gas pipeline multibody dynamics simulation finite element dynamic response analysis
分类号:
X937
DOI:
10.11731/j.issn.1673-193x.2018.11.014
文献标志码:
A
摘要:
工程中管道挖掘损伤多为挖掘机具穿透土层后作用在管道上而导致。为确定覆土阻力下挖掘机对管道的损伤情况,利用 ADAMS多体动力学软件,建立多体动力学仿真模型,再现挖掘过程,获取不同工况下有覆土阻力时管道所受挖掘荷载的时程曲线;最终将荷载时程曲线导入到ABAQUS有限元软件中,分析管道的动力响应情况。研究结果表明:单齿作用下管道承受的挖掘荷载的峰值是五齿作用下的1.3~1.9倍;与铲斗接触处的管道横截面的各项力学特征以接触点所在竖轴线为中轴线呈对称状态;挖掘荷载作用下,输气管道的Mises应力随着覆土厚度的增大而减小,且在覆土厚度变化量相同的情况下,覆土越深管道的Mises应力变化量越小。
Abstract:
The damage of pipeline caused by excavation in the engineering is almost due to the effect of excavator on the pipeline after penetrating the soil layer. In order to determine the damage situation of pipeline caused by the excavator with the covering soil resistance, a multibody dynamics simulation model was established by using the ADAMS multibody dynamics software to represent the excavation process, and the timehistory curves of the bearing excavation load of pipeline with the covering soil resistance under different working conditions were obtained. The timehistory curves of load were imported into the ABAQUS finite element software to analyze the dynamic response of the pipeline. The results showed that the peak value of the bearing excavation load of pipeline under the effect of single tooth was 1.3~1.9 times of that under the effect of five teeth. The mechanical characteristics of pipeline cross section at the position contacting with the bucket were symmetric with the vertical axis at the contact point as the central axis. Under the effect of excavation load, the Mises stress of gas pipeline decreased with the increasing thickness of covering soil, and under the same variation of the thickness of covering soil, the larger the depth of covering soil, the smaller the variation of Mises stress.

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备注/Memo

备注/Memo:
收稿日期: 2018-08-25
作者简介: 高旭,硕士研究生,主要研究方向为油气管道系统风险评价与完整性管理。
更新日期/Last Update: 2018-12-03