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[1]兰旭彬,杨雅冰,房茂立,等.沉管下沟管道力学分析*[J].中国安全生产科学技术,2023,19(6):112-118.[doi:10.11731/j.issn.1673-193x.2023.06.016]
　LAN Xubin,YANG Yabing,FANG Maoli,et al.Mechanical analysis on immersed ditching pipeline[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2023,19(6):112-118.[doi:10.11731/j.issn.1673-193x.2023.06.016]
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沉管下沟管道力学分析*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
19
期数:
2023年6期
页码:
112-118
栏目:
职业安全卫生管理与技术
出版日期:
2023-06-30

文章信息/Info

Title:
Mechanical analysis on immersed ditching pipeline
文章编号:
1673-193X(2023)-06-0112-07
作者:
兰旭彬; 杨雅冰; 房茂立; 赵连学; 朱海瑞
(1.中石化石油工程设计有限公司成都分公司，四川 成都 610000；
2.中石化石油工程设计有限公司，山东 东营 257100；
3.山东莱克工程设计有限公司，山东 东营 257100)
Author(s):
LAN Xubin;  YANG Yabing;  FANG Maoli;  ZHAO Lianxue;  ZHU Hairui
(1.Chengdu Branch of SINOPEC Petroleum Engineering Corporation,Chengdu Sichuan 610000,China;2.SINOPEC Petroleum Engineering Corporation,Dongying Shandong 257100,China;
3.Shandong Laike Engineering Co.,Ltd.,Dongying Shandong 257100,China)
关键词:
输气管道; 沉管法; 施工; 数值模拟; 力学分析
Keywords:
natural gas pipeline;  immersed pipeline method;  construction;  numerical simulation;  mechanics analysis
分类号:
TE832；X937
DOI:
10.11731/j.issn.1673-193x.2023.06.016
文献标志码:
A
摘要:
为解决传统吊管法在水网、沙漠及沼泽等地段管道下沟所面临的实际施工难题，以大管径为研究对象，基于面面接触算法，实现管土耦合作用，构建单向及背向沉管法下沟管道模型，综合考虑管道与压袋自身重力及沟内积水带来的浮力作用，并以节点载荷形式间接实现流固耦合影响，对一般工况、含支墩及沟内积水工况进行分析，获取不同工况下管道力学规律。研究结果表明：针对不同沉管法施工，管道下沟过程可分为沉管下沟前期、稳定期、后期3个阶段；当管道刚接触沟底时，其位移、应力达到极值，相比于一般工况，含支墩工况下管道应力极值点位于临近管沟开挖边界的支墩处；为提高沉管法施工适用性，可在管土接触处铺垫胶皮、减小管沟深度及采用分层开挖管沟等措施，降低管道应力极值；当沟内积水深度大于临界深度时，优先建议采用抽排水措施，当不可避免采用平衡压袋时，建议以沉管下沟稳定期时管道悬空长度作为评判基准，控制压袋与管沟开挖边界间距，以保证管道施工安全。研究结果可为大管径管道设计及施工阶段提供理论指导与技术支撑。
Abstract:
In order to solve the practical construction problems faced by the traditional sling pipeline method in the ditching of pipeline in water network,desert and swamp areas,taking the large-diameter pipeline as the research object,the pipeline-soil coupling effect was realized on the basis of surface-to-surface contact algorithm,and the unidirectional and antitropic immersed ditching pipeline models were constructed.Comprehensively considering the gravity of pipeline and pressure bag and the buoyancy effect caused by the water accumulated in ditch,the fluid-solid coupling effect was indirectly realized with the node load form.The general working conditions,working condition with buttress and water accumulation conditions in the ditch were analyzed to obtain the mechanical law of pipeline under different working conditions.The results showed that aiming at the construction of different immersed pipeline methods,the ditching process of pipeline can be divided into three stages: early stage,stable stage and late stage of immersed ditching.When the pipeline just contacts the bottom of ditch,its displacement and stress reach the extreme values.Compared with the general working conditions,the extreme value point of pipeline stress under the condition with buttress is located at the buttress near the excavation boundary of pipeline trench.In order to improve the applicability of the immersed pipeline method,the measures such as laying rubber at the contact point of pipeline-soil,reducing the depth of pipeline trench and adopting layered excavation of pipeline trench can be taken to reduce the extreme value of pipeline stress.When the depth of water accumulated in the ditch is greater than the critical depth,it is preferentially recommended to use the pumping drainage measure.When the balanced pressure bag is inevitably used,it is recommended to use the suspended length of pipeline during the stable period of immersed ditching as the judgment criterion to control the distance between the pressure bag and the trench excavation boundary,so as to ensure the safety of pipeline construction.The research results can provide theoretical guidance and technical support for the design and construction of large diameter pipelines.

参考文献/References:

［1］新华社.中共中央国务院关于完整准确全面贯彻新发展理念做好碳达峰碳中和工作的意见［EB/OL］.（2021-10-24）［2022-10-24］.http://www.gov.cn/zhengce/2021-10/24/content_5644613.htm.
［2］康万平,王宇,李战宏.沉管技术在长输管道河谷段的施工应用［J］.油气储运,2010,29(7):550-552,478. KANG Wanping,WANG Yu,LI Zhanhong.Application of pipe sinking technique in valley pipeline construction［J］.Oil & Gas Storage and Transportation,2010,29(7):550-552,478.
［3］郭勇.沉管法管道下沟施工技术应用［C］//2012年10月建筑科技与管理学术交流会论文集，2012.
［4］张力,李道德,彭顺斌.单侧沉管在沙漠地段长输管道施工中的应用［J］.天然气与石油,2011,29(4):23-25,92-93. ZHANG Li,LI Daode,PENG Shunbin.Application of lowering pipeline at single side to long-distance pipeline construction in desert areas［J］.Natural Gas and Oil,2011,29(4):23-25,92-93.
［5］周广合,肖胜军,陈晓霞.沉管法在大口径长输管道工程中的应用［J］.石油工程建设,2009,35(6):45-47,10. ZHOU Guanghe,XIAO Shengjun,CHEN Xiaoxia.Application of pipeline sinking method in large-diameter long-distance pipeline construction［J］.Petroleum Engineering Construction,2009,35(6):45-47,10.
［6］胡国强,熊新强,尚增辉,等.沙漠地段天然气管道施工技术［J］.石油规划设计,2005,16(6):19-21.
［7］孟佳.高石梯-磨溪天然气外输管道沉管下沟技术对策研究［D］.成都：西南石油大学,2018.
［8］刘玉卿,武玉梁,张振永.中俄东线水平连续冷弯管管道沉管下沟的可行性［J］.油气储运,2020,39(2):215-221. LIU Yuqing,WU Yuliang,ZHANG Zhenyong.Feasibility of lowering-in of horizontal continuous cold bending pipes in China-Russia Eastern Gas Pipeline［J］.Oil & Gas Storage and Transportation,2020,39(2):215-221.
［9］刘玉卿,余志峰,齐万鹏.中俄东线天然气管道沉管下沟数值模拟［J］.石油机械,2019,47(3):118-123. LIU Yuqing,YU Zhifeng,QI Wanpeng.Numerical simulation of sinking and lowering of China-Russia Eastern Gas Pipeline［J］.China Petroleum Machinery,2019,47(3):118-123.
［10］中国石油天然气管道局标准化委员会.油气输送管道沉管下沟施工规范：Q/SY GDJ 0387—2014［S］.廊坊：中国石油天然气管道局，2015.
［11］麻宏强,丁瑞祥,陈海亮,等.滑坡碎屑流纵向作用下埋地天然气管道变形规律［J］.天然气工业,2021,41(12):110-116. MA Hongqiang,DING Ruixiang,CHEN Hailiang,et al.Deformation laws of buried gas line pipes under the vertical action of landslide debris flow［J］.Natural Gas Industry,2021,41(12):110-116.
［12］王付会,练章华,林铁军.双侧沉管在水网地段应力分析及数值模拟［J］.石油机械,2015,43(7):116-120. WANG Fuhui,LIAN Zhanghua,LIN Tiejun.Theoretical analysis and numerical simulation of pipeline stress with lowering pipeline on both sides in water network areas［J］.China Petroleum Machinery,2015,43(7):116-120.
［13］张洪才.ANSYS14.0理论解析与工程应用实例［M］.北京:机械工业出版社,2012.
［14］国家石油天然气管网集团有限公司工程建设本部.油气管道水工保护典型图集：DEC—OGP—M—PL—003—2020—1 ［S］.北京：国家石油天然气管网集团有限公司，2020.

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备注/Memo

备注/Memo:
收稿日期： 2022-11-28
* 基金项目： 国家自然科学基金项目（51674212）
作者简介： 兰旭彬，硕士，助理工程师，主要研究方向为长输管道设计。
更新日期/Last Update: 2023-07-09