Article(id=1149743088689660193, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149743083069288795, articleNumber=1003-3033(2024)06-0073-09, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2024.06.1616, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1702742400000, receivedDateStr=2023-12-17, revisedDate=1710950400000, revisedDateStr=2024-03-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1752049713537, onlineDateStr=2025-07-09, pubDate=1719504000000, pubDateStr=2024-06-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752049713537, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752049713537, creator=13701087609, updateTime=1752049713537, updator=13701087609, issue=Issue{id=1149743083069288795, tenantId=1146029695717560320, journalId=1146031787341344770, year='2024', volume='34', issue='6', pageStart='1', pageEnd='252', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752049712197, creator=13701087609, updateTime=1756468919644, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1168278582599098697, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149743083069288795, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1168278582599098698, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149743083069288795, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=73, endPage=81, ext={EN=ArticleExt(id=1149743088907764002, articleId=1149743088689660193, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Mechanical analysis of buried pipeline collapse process based on unit life and death technology, columnId=1149733269173878863, journalTitle=China Safety Science Journal, columnName=Safety engineering technology, runingTitle=null, highlight=null, articleAbstract=
In order to solve the nonlinear problem of dynamic loss of soil around the pipe during the collapse development process of the buried pipeline,first,a numerical analysis method was used to construct a nonlinear coupling model of pipe-soil that passes through the collapse zone. Then,the model was verified based on experimental measured data and specifications. Finally,a study on the damage mechanism of buried pipelines subjected to soil collapse was carried out,and the dynamic evolution process and mechanical characteristics of buried pipeline collapse were discussed. The results show that the axial stress is the control stress,the mid-span pipe bottom is the control point,the mid-span section is the dangerous section,and excessive tensile stress is the main reason for failure of buried pipelines. It is confirmed that "pipe-soil separation" phenomenon exists. When the collapse depth reaches 48 mm,"pipe and soil separate",as the collapse process progresses,the entire process of pipe-soil structure from the beginning of deformation to the tensile failure of buried pipeline can be divided into three stages: the top pressure stage,the transition stage and in the bottom tension stage,the collapse depth of 80 and 160 mm is the dividing point. When the collapse depth reaches 59 mm,the pipe top stress changes from valley to peak at mid-span position. When collapse depth reaches 80 mm,friction stress appears.
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为解决埋地管道塌陷发育过程中管周土动态流失的非线性问题,首先,采用数值分析方法构建穿越塌陷区的管-土非线性耦合模型,并应用单元生死技术模拟土体流失过程;其次,依托试验实测数据及规范验证模型,分析不同塌陷阶段埋地管道的应力变形特征;然后,研究埋地管道遭受土体塌陷作用下的破坏机制,确定埋地管道的控制应力及危险截面;最后,通过分析管土接触,探讨管土相互作用揭示埋地管道塌陷动态演化过程及力学特征。结果表明:轴向应力为控制应力,跨中管底为控制点,跨中截面为危险截面,过度的拉应力是埋地管道失效的主要原因;证实管土分离现象的存在,且在塌陷深度达到48 mm时管土分离;随着塌陷过程的进展,管-土结构从开始变形到埋地管道受拉破坏的全过程分为3个阶段,即顶部受压阶段、过渡阶段和底部受拉阶段,塌陷深度80与160 mm为分界点;塌陷深度达到59 mm时,管顶应力在跨中位置处实现谷值到峰值的转变;塌陷深度达到80 mm时,摩擦应力出现。
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 |
滕振超 (1976—),男,河北故城人,博士,副教授,主要从事结构工程、防灾减灾及防护工程等方面的研究。E-mail:tzcdqpi@163.com。 |
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1 School of Civil Engineering and Architecture,Northeast Petroleum University,Daqing Heilongjiang 163318,China
2 Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin Heilongjiang 150086,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1168181934925558703, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, authorId=1168181934816506795, language=CN, stringName=滕振超, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 东北石油大学 土木建筑工程学院,黑龙江 大庆 163318
2 中国地震局工程力学研究所 地震工程与工程振动重点实验室,黑龙江 哈尔滨 150086, bio={"img":"Sn/+WehQZGdxmhC1YdteSQ==","content":"
滕振超 (1976—),男,河北故城人,博士,副教授,主要从事结构工程、防灾减灾及防护工程等方面的研究。E-mail:tzcdqpi@163.com。
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滕振超 (1976—),男,河北故城人,博士,副教授,主要从事结构工程、防灾减灾及防护工程等方面的研究。E-mail:tzcdqpi@163.com。
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1 东北石油大学 土木建筑工程学院,黑龙江 大庆 163318)]), AuthorCompany(id=1168181934753592231, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, xref=2, ext=[AuthorCompanyExt(id=1168181934761980840, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, companyId=1168181934753592231, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin Heilongjiang 150086,China), AuthorCompanyExt(id=1168181934766175145, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, companyId=1168181934753592231, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国地震局工程力学研究所 地震工程与工程振动重点实验室,黑龙江 哈尔滨 150086)])], figs=[ArticleFig(id=1168181936632640467, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.1, caption=
Uneven settlement of pipe soil, figureFileSmall=VlK7YsJ+bABXpH8F4Iys+w==, figureFileBig=tmTMnTyVsRGoCK8k+dXbQg==, tableContent=null), ArticleFig(id=1168181936687166420, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图1, caption=
管土不均匀沉降, figureFileSmall=VlK7YsJ+bABXpH8F4Iys+w==, figureFileBig=tmTMnTyVsRGoCK8k+dXbQg==, tableContent=null), ArticleFig(id=1168181936745886677, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.2, caption=
Trilinear model, figureFileSmall=mo00FMW+6i9UODq3IfcRFA==, figureFileBig=uWFgilaaDxOTnr8/8kIq4w==, tableContent=null), ArticleFig(id=1168181936796218326, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图2, caption=
三折线模型, figureFileSmall=mo00FMW+6i9UODq3IfcRFA==, figureFileBig=uWFgilaaDxOTnr8/8kIq4w==, tableContent=null), ArticleFig(id=1168181936846549975, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.3, caption=
Initial boundary conditions, figureFileSmall=wj9SEGEfg/Ll5TAV2sVH2g==, figureFileBig=ULwpqfn7KJ372tcgwvJZpQ==, tableContent=null), ArticleFig(id=1168181936896881624, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图3, caption=
初始边界条件, figureFileSmall=wj9SEGEfg/Ll5TAV2sVH2g==, figureFileBig=ULwpqfn7KJ372tcgwvJZpQ==, tableContent=null), ArticleFig(id=1168181936955601881, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.4, caption=
Displacement and stress nephogram of soil model, figureFileSmall=wYTL01lIsxX5Cywq8Cb4ZA==, figureFileBig=cm/LV/bUbuGcDbetFq3g6Q==, tableContent=null), ArticleFig(id=1168181937010127834, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图4, caption=
土体模型的位移与应力云图, figureFileSmall=wYTL01lIsxX5Cywq8Cb4ZA==, figureFileBig=cm/LV/bUbuGcDbetFq3g6Q==, tableContent=null), ArticleFig(id=1168181937060459483, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.5, caption=
Settlement displacement of buried pipeline, figureFileSmall=5qIOE8+ZqWcJBsnuOAEzfw==, figureFileBig=+g97gZy8P4fdYm0CA2ZLTA==, tableContent=null), ArticleFig(id=1168181937110791132, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图5, caption=
埋地管道的沉降位移, figureFileSmall=5qIOE8+ZqWcJBsnuOAEzfw==, figureFileBig=+g97gZy8P4fdYm0CA2ZLTA==, tableContent=null), ArticleFig(id=1168181937161122781, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.6, caption=
Settlement results, figureFileSmall=yPh5cq0GpDfKH8DvJmGc7w==, figureFileBig=UqNJJKE+8QV9qrqhnj+DQQ==, tableContent=null), ArticleFig(id=1168181937215648734, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图6, caption=
结算结果, figureFileSmall=yPh5cq0GpDfKH8DvJmGc7w==, figureFileBig=UqNJJKE+8QV9qrqhnj+DQQ==, tableContent=null), ArticleFig(id=1168181937270174687, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.7, caption=
Simulation of collapse process, figureFileSmall=ilnGgK9Uq4L8fbkIX6jxlw==, figureFileBig=H4wTSmgHBiGxaG9UEolVbA==, tableContent=null), ArticleFig(id=1168181937333089248, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图7, caption=
塌陷过程模拟, figureFileSmall=ilnGgK9Uq4L8fbkIX6jxlw==, figureFileBig=H4wTSmgHBiGxaG9UEolVbA==, tableContent=null), ArticleFig(id=1168181937383420897, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.8, caption=
Contact state of pipe and soil during collapse, figureFileSmall=ihNv2SY9wxJWiYGWeQOSsg==, figureFileBig=7JUdzoGJfGALY4In8k4Aig==, tableContent=null), ArticleFig(id=1168181937433752546, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图8, caption=
塌陷过程中管土接触状态, figureFileSmall=ihNv2SY9wxJWiYGWeQOSsg==, figureFileBig=7JUdzoGJfGALY4In8k4Aig==, tableContent=null), ArticleFig(id=1168181937488278499, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.9, caption=
Pipe-soil contact in the process of collapse, figureFileSmall=fkr3MvFVlUul0J8hThtgQw==, figureFileBig=Nd4rHAZb/ssh3LDIm00Q6g==, tableContent=null), ArticleFig(id=1168181937538610148, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图9, caption=
塌陷过程中管土接触云图, figureFileSmall=fkr3MvFVlUul0J8hThtgQw==, figureFileBig=Nd4rHAZb/ssh3LDIm00Q6g==, tableContent=null), ArticleFig(id=1168181937593136101, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.10, caption=
Deformation characteristic of soil in the process of collapse, figureFileSmall=FTm/7HM07F/mk1W9GfSqOA==, figureFileBig=jVBBnR7AE3cVdEAWO3fj7Q==, tableContent=null), ArticleFig(id=1168181937647662054, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图10, caption=
土体塌陷过程中的变形特征, figureFileSmall=FTm/7HM07F/mk1W9GfSqOA==, figureFileBig=jVBBnR7AE3cVdEAWO3fj7Q==, tableContent=null), ArticleFig(id=1168181937697993703, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.11, caption=
Deformation characteristic of buried pipeline during collapse process, figureFileSmall=UrAFQBp0vZQo0/8lC+4OQg==, figureFileBig=QO7nvaFTD4acOVRq6fpKog==, tableContent=null), ArticleFig(id=1168181937748325352, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图11, caption=
塌陷过程中埋地管道的变形特征, figureFileSmall=UrAFQBp0vZQo0/8lC+4OQg==, figureFileBig=QO7nvaFTD4acOVRq6fpKog==, tableContent=null), ArticleFig(id=1168181937798657001, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.12, caption=
Stress characteristic of buried pipeline during collapse process, figureFileSmall=z4pWR8ix9HXxGreCSW0Omw==, figureFileBig=mkPFwz5zXzXxmwQJIf/Ilg==, tableContent=null), ArticleFig(id=1168181937853182954, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图12, caption=
塌陷过程中埋地管道的应力规律特征, figureFileSmall=z4pWR8ix9HXxGreCSW0Omw==, figureFileBig=mkPFwz5zXzXxmwQJIf/Ilg==, tableContent=null), ArticleFig(id=1168181937907708907, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.13, caption=
Settlement displacement and Von-Mises stress of buried pipelines at different collapse stages, figureFileSmall=igviUk1RcD6QPnM/U2fNog==, figureFileBig=c41kmj55m2kodLugpzp77g==, tableContent=null), ArticleFig(id=1168181937983206380, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图13, caption=
不同塌陷阶段的埋地管道沉降位移及Von-Mises应力, figureFileSmall=igviUk1RcD6QPnM/U2fNog==, figureFileBig=c41kmj55m2kodLugpzp77g==, tableContent=null), ArticleFig(id=1168181938046120941, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.14, caption=
Displacement and stress along buried pipeline during collapse, figureFileSmall=u6HtSYUjEIevkLXVLGh/3Q==, figureFileBig=3niRKS2WhbRnIyQ1/YGCYQ==, tableContent=null), ArticleFig(id=1168181938138395630, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图14, caption=
塌陷过程中埋地管道沿程位移及应力特征, figureFileSmall=u6HtSYUjEIevkLXVLGh/3Q==, figureFileBig=3niRKS2WhbRnIyQ1/YGCYQ==, tableContent=null), ArticleFig(id=1168181938192921583, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.15, caption=
Deformation characteristic of buried pipeline section, figureFileSmall=5XUR98OKUDCOpqExy2wedg==, figureFileBig=wKCjp+XrVWnjMuz/Qb7bbA==, tableContent=null), ArticleFig(id=1168181938264224752, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图15, caption=
塌陷过程中埋地管道截面变形特征, figureFileSmall=5XUR98OKUDCOpqExy2wedg==, figureFileBig=wKCjp+XrVWnjMuz/Qb7bbA==, tableContent=null), ArticleFig(id=1168181938318750705, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Fig.16, caption=
Variation characteristic of stress at different positions of buried pipeline section during collapse process, figureFileSmall=sn2Y6/uUbk4RKDxB9bu5oQ==, figureFileBig=g2a9u2iCSTNJB6hWvV57yQ==, tableContent=null), ArticleFig(id=1168181938373276658, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=图16, caption=
塌陷过程中埋地管道截面不同位置应力变化特征, figureFileSmall=sn2Y6/uUbk4RKDxB9bu5oQ==, figureFileBig=g2a9u2iCSTNJB6hWvV57yQ==, tableContent=null), ArticleFig(id=1168181938423608307, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Table 1, caption=
Pipe material parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
管道 材质 | 密度/ (kg/m3) | 弹性模 量/MPa | 屈服应 力/MPa | 极限应 力/MPa | 泊松 比 |
| PE100 | 950 | 800 | 40 | 45 | 0.45 |
), ArticleFig(id=1168181938473939956, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=表1, caption=
管道材料参数
, figureFileSmall=null, figureFileBig=null, tableContent=
管道 材质 | 密度/ (kg/m3) | 弹性模 量/MPa | 屈服应 力/MPa | 极限应 力/MPa | 泊松 比 |
| PE100 | 950 | 800 | 40 | 45 | 0.45 |
), ArticleFig(id=1168181938528465909, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=EN, label=Table 2, caption=
Soil material parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
土壤 类别 | 密度/ (kg·m-3) | 弹性 模量/ MPa | 黏聚 力/ kPa | 内摩 擦角/ (°) | 膨胀 角/ (°) | 泊松 比 |
| 砂土 | 2 000 | 10 | 20 | 20 | 0 | 0.3 |
), ArticleFig(id=1168181938578797558, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743088689660193, language=CN, label=表2, caption=
土质材料参数
, figureFileSmall=null, figureFileBig=null, tableContent=
土壤 类别 | 密度/ (kg·m-3) | 弹性 模量/ MPa | 黏聚 力/ kPa | 内摩 擦角/ (°) | 膨胀 角/ (°) | 泊松 比 |
| 砂土 | 2 000 | 10 | 20 | 20 | 0 | 0.3 |
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