[1]李乔楚,杨瀚匀.土体塌陷作用下埋地管道力学分析研究现状[J].焊管,2022,45(7):12-18,31.[doi:10.19291/j.cnki.1001-3938.2022.07.003]
 LI Qiaochu,YANG Hanyun.Research Status of Mechanical Analysis of Buried Pipeline under Soil Collapse[J].,2022,45(7):12-18,31.[doi:10.19291/j.cnki.1001-3938.2022.07.003]
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土体塌陷作用下埋地管道力学分析研究现状()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
45
期数:
2022年第7期
页码:
12-18,31
栏目:
试验与研究
出版日期:
2022-07-28

文章信息/Info

Title:
Research Status of Mechanical Analysis of Buried Pipeline under Soil Collapse
文章编号:
10.19291/j.cnki.1001-3938.2022.07.003
作者:
李乔楚杨瀚匀
1.西南石油大学 经济管理学院,成都 610500;2.西南石油大学 法学院,成都 610500
Author(s):
LI QiaochuYANG Hanyun
1.School of Economics and Management,Southwest Petroleum University,Chengdu 610500,China;2.Law School,Southwest Petroleum University,Chengdu 610500,China
关键词:
土体塌陷天然气管道管土作用力学响应研究方法
Keywords:
soil collapsenatural gas pipelinepipe-soil interactionmechanical responseresearch method
分类号:
TG113.25
DOI:
10.19291/j.cnki.1001-3938.2022.07.003
文献标志码:
A
摘要:
土体塌陷是危害天然气管道安全运行的地质灾害之一,在研究土体塌陷对埋地天然气管道的作用机理以来,各种研究方法和模型都有着不同的优点与缺陷。在调研、分析大量国内外相关研究的基础上,以塌陷区埋地天然气管道为对象,对土体塌陷作用下管道力学响应的研究方法进行对比分析。研究结果表明:理论解析研究具有概念简单、计算方便、便于工程应用等优点,但其通常对管土参数及边界条件进行假设或简化,因此计算结果的可靠性还需进一步验证;数值模拟研究弥补了理论解析法无法解决复杂非线性问题的不足,同时避免了苛刻试验条件造成的研究难度,但对于单元生死技术的应用以及岩溶塌陷等特殊地质灾害的研究有待进一步完善;现有试验分析研究主要集中在非金属管道上,但其在塌陷模式、土体性质、管道敷设等方面仍与实际工况存在一定差异,且在全尺寸模型试验等领域还需进一步研究。
Abstract:
Soil collapse is one of the geological disasters that endanger the safe operation of natural gas pipelines.Since the mechanism of soil collapse on buried natural gas pipelines was studied,various research methods and models have different advantages and disadvantages.Based on the investigation and analysis of a large number of domestic and foreign related studies,taking the buried natural gas pipeline in the collapse area as the object,different research methods for mechanical response of pipelines under soil collapse are compared and analyzed.The results show that theoretical analysis has the advantages of simple concept,convenient calculation and convenient engineering application,but it usually assumes or simplifies the pipe,soil parameters and boundary conditions,so the reliability of calculation results needs further verification.The numerical simulation research makes up for the deficiency that the theoretical analysis method can not solve the complex nonlinear problems,and avoids the research difficulty caused by harsh experimental conditions.However,the application of element birth and death technique and the research on special geological disasters such as karst collapse need to be further improved.The existing experimental research mainly focuses on non-metallic pipelines,but it still has some differences from the actual working conditions in terms of collapse mode,soil properties,pipeline laying,etc.,and further research isneeded in the full-scale model test.

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备注/Memo

备注/Memo:
收稿日期:2021-12-23基金项目:四川省社会科学研究“十三五”规划基地项目“四川省能源系统低碳转型的驱动因素及政策研究”(项目编号SC20EZD062);四川省科技计划项目“四川页岩气产业发展质量综合监测与评价技术研究与应用示范”(项目编号2020YFG0145)。作者简介:李乔楚 (1995—),男,汉族,博士研究生,现主要从事石油工程管理方向的研究工作。
更新日期/Last Update: 2022-07-29