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[1]王现中,谢成,邵其其,等.基于原位监测的高填方下穿管道有限元分析[J].油气储运,2022,41(10):1150-1158.[doi:10.6047/j.issn.1000-8241.2022.10.004]
WANG Xianzhong,XIE Cheng,SHAO Qiqi,et al.Finite element analysis of pipeline underpassing high fill based on in-situ monitoring[J].Oil & Gas Storage and Transportation,2022,41(10):1150-1158.[doi:10.6047/j.issn.1000-8241.2022.10.004]
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WANG Xianzhong,XIE Cheng,SHAO Qiqi,et al.Finite element analysis of pipeline underpassing high fill based on in-situ monitoring[J].Oil & Gas Storage and Transportation,2022,41(10):1150-1158.[doi:10.6047/j.issn.1000-8241.2022.10.004]
基于原位监测的高填方下穿管道有限元分析
《油气储运》[ISSN:1000-8241/CN:13-1093/TE]
卷:
41
期数:
2022年10期
页码:
1150-1158
栏目:
检测与完整性
出版日期:
2022-10-25
- Title:
- Finite element analysis of pipeline underpassing high fill based on in-situ monitoring
- 文章编号:
- 1000-8241（2022）10-1150-09
- Keywords:
- oil pipeline; high fill embankment; underpassing; in-situ monitoring; finite element analysis; safety assessment
- 分类号:
- TE832
- 文献标志码:
- A
- 摘要:
- 油气管道安全问题已成为国民经济的重要影响因素。随着管道工程建设的大力发展，油气管道不可避免地与各类交通工程形成交叉。在中国西部山区，常出现油气管道下穿高填方路堤的现象，油气管道的埋深一般为1~3m，易受上部路堤覆土不均匀沉降的影响，存在受挤压而剪切破裂的风险。研究管道与高填方路堤之间的相互作用，对管道进行准确安全评估已成为油气管道穿越复杂山区高填方路堤时必须考虑的问题。在此，采用原位监测与有限元方法，分析贵阳双龙航空港经济区物流外环道路高填方路堤下穿管道的应力、应变、挠度响应，并基于管道的临界失稳状态反算监测预警阈值，结果表明：研究区管道累计沉降量最大为17.3mm，不均匀沉降差最大为4mm，内部偏移量最大为16.1mm，管道的应力、应变、挠度远小于许用值，管道处于安全状态。研究结果可为高填方下穿油气管道的监测预警和安全评估提供指导。（图13，表7，参29）
- Abstract:
- The safety of oil and gas pipelines has become an important factor influencing the national economy. With the vigorous development of pipeline engineering, oil and gas pipelines often inevitably intersect with various traffic routes. In the western mountainous area of China, it is very common for the oil and gas pipelines undercrossing the high fill embankment, where the oil and gas pipelines generally have a buried depth of 1 m to 3 m, and they are prone to be affected by the uneven settlement of the overlying soil of the upper embankment, resulting in the risk of extrusion shear fracture. Therefore, studying the interaction between the pipelines and the high fill embankment and accurately evaluating their safety have become the essential consideration for oil and gas pipelines crossing the high fill embankment in complex mountainous area. Herein, the stress, strain and deflection response of the pipeline under the high fill embankment of the logistics outer ring road in Guiyang Shuanglong Airport Economic Zone was analyzed with the in-situ monitoring and finite element method, and the threshold of monitoring and early warning was inversely calculated based on the critical instability state of the pipeline. According to the results, the maximum cumulative settlement of pipeline in the study area is 17.3 mm, the maximum difference of uneven settlement is 4 mm, and the maximum internal offset is 16.1 mm, which indicate that the stress, strain and deflection of the pipeline is much smaller than the allowable value, so the pipeline is safe. In general, the research results could provide guidance for the monitoring, early warning and safety assessment of oil and gas pipelines. (13 Figures, 7 Tables, 29 References)
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备注/Memo
王现中，男，1978年生，高级工程师，2021年硕士毕业于中国石油大学（北京）石油天然气工程专业，现主要从事成品油管道运营与管理工作。地址：广东省广州市天河区临江大道1号寺右万科中心，510623。电话：13902326511。Email：wangxz03@pipechina.com.cn
基金项目：广东省重点领域研发计划项目“油气储运重大基础设施灾害防御关键技术及装备研发与示范”，2019B111102001。
（收稿日期：2021-11-29；修回日期：2022-06-20；编辑：张腾）
更新日期/Last Update:
2022-10-25