大连理工大学海岸和近海工程国家重点实验室,辽宁 大连 116024
刘绪都(1994—),男,博士研究生。主要从事重要管道安全监测技术研究。E-mail:1939651798@qq.com
冯新(1970—),男,教授,博导。主要从事结构健康监测与安全评价、基础设施全寿命周期智慧运维、智能感知与大数据分析研究。E-mail: fengxin@dlut.edu.cn
收稿:2021-02-03,
修回:2021-04-28,
纸质出版:2022-10-28
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刘绪都,冯新,李明昊等.基于分布式应变监测的埋地管道悬空识别方法研究[J].防灾减灾工程学报,2022,42(05):1076-1084.
LIU Xudu,FENG Xin,LI Minghao,et al.Suspension Identification on Buried Pipeline based on Distributed Strain Monitoring[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(05):1076-1084.
刘绪都,冯新,李明昊等.基于分布式应变监测的埋地管道悬空识别方法研究[J].防灾减灾工程学报,2022,42(05):1076-1084. DOI: 10.13409/j.cnki.jdpme.20210203001.
LIU Xudu,FENG Xin,LI Minghao,et al.Suspension Identification on Buried Pipeline based on Distributed Strain Monitoring[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(05):1076-1084. DOI: 10.13409/j.cnki.jdpme.20210203001.
埋地管道在地基缺陷或管道泄漏作用下会产生局部悬空,悬空的发展不仅会威胁管道的安全运行,还会造成地面沉降、塌陷等地质危害。因此,提出一种基于分布式应变监测的埋地管道悬空识别方法。首先布设分布式应变传感器获取管道沿途任意位置纵向应变,然后提取弯曲应变并判断管道悬空状态的出现,再结合管道弯曲应变建立埋地管道有限元模型,最后通过遗传算法对管道有限元模型的土体刚度进行修正,根据修正后的土体刚度变化定量识别管道悬空出现的位置及范围。通过模型试验验证得出识别结果与试验悬空段两侧坡肩位置最大误差不超过0.2 m,反推出的管道应变峰值和挠度与监测结果相差最大分别为84.1 με和3.5 mm,其对应的相对误差分别为7.7%和9.2%,试验误差都控制在工程可以接受的范围以内。研究结果表明:本方法可以实时监测管道的工作应力,反推出管道的挠曲变形,准确判断管道悬空的出现,精确识别出管道悬空的范围。本方法对管道运行的结构状态评估和悬空灾害识别都具有非常积极的意义。
Due to foundation defects or pipeline leakage, buried pipelines are prone to be partially suspended. The development of suspended pipelines will not only threaten the safe operation of pipelines, but also cause geological hazards, such as ground subsidence and collapse. Therefore, a suspension identification method of buried pipelines based on distributed strain monitoring is proposed. Firstly, distributed strain sensors are deployed to obtain longitudinal strain distribution along the pipeline, and then the bending strain is calculated and the suspended state of the pipeline is judged. Moreover. a finite element model of the buried pipeline is established based on pipe bending strains, and the soil stiffness of the finite element model is updated using genetic algorithm. Finally, the position and range of pipeline suspension are quantitatively identified according to the modified soil stiffness. The model test results show that the maximum error between the identification result and the positions of the slope shoulder on both sides of the suspended section in the test does not exceed 0.2 m, and the maximum difference between the peak strain and deflection of the pipeline and the monitoring results is 84.1 με and 3.5 mm, respectively. The corresponding relative errors are 7.7% and 9.2% respectively, which are within the acceptable range of the project. The proposed method can monitor the working stress of the pipeline in real time, deduce the deflection of the pipeline, judge the occurrence of pipeline suspension, and accurately identify the range of pipeline suspension. This method has very positive significance for the evaluation of structure state and the identification of suspension hazards of pipeline operation.
许利惟 , 刘旭 , 陈福全 . 塌陷作用下埋地悬空管道的力学响应分析 [J]. 工程力学 , 2018 , 35 ( 12 ): 212 - 219 .
Xu L W , Liu X , Chen F Q . Mechanical analysis of buried suspended pipeline under the action of collapse [J]. Engineering Mechanics , 2018 , 35 ( 12 ): 212 - 219 . (in Chinese)
梁晓斌 , 梁伟 , 邓克飞 , 等 . 采空区悬空天然气管道应力与应变模拟 [J]. 油气储运 , 2019 , 38 ( 2 ): 145 - 150 .
Liang X B , Liang W , Deng K F , et al . Simulation on the stress and strain of suspended gas pipelines in goafs [J]. Oil & Gas Storage and Transportation , 2019 , 38 ( 2 ): 145 - 150 . (in Chinese)
陈珍 , 徐景田 . 忠武输气管道沿线地质灾害监测方法研究 [J]. 工程勘察 , 2010 , 38 ( 2 ): 79 - 83 .
Chen Z , Xu J T . Monitoring methods study of geological hazards for Zhong-wu gas pipeline [J]. Geotechnical Investigation & Surveying , 2010 , 38 ( 2 ): 79 - 83 . (in Chinese)
Moya J M , Sota G M D L . Alternative geohazard risk assessment and monitoring for pipelines with limited access: Amazon jungle example [C]∥ Proceedings of the 2014 10th International Pipeline Conference . Calgary : ASME , 2014 : V002T06A090 .
Moya J M , Montes E F O , Sota G M D L . Integration of monitoring and inspection systems for geohazard assessment on pipelines that cross amazonian jungles and the andes [C]∥ Proceedings of the 2012 9th International Pipeline Conference . Calgary : ASME , 2011 : 501 - 509 .
Hausamann D , Zirnig W , Schreier G , et al . Monitoring of gas pipelines‑a civil UAV application [J]. Aircraft Engineering & Aerospace Technology An International Journal , 2005 , 77 ( 5 ): 352 - 360 .
李器宇 , 张拯宁 , 柳建斌 , 等 . 无人机遥感在油气管道巡检中的应用 [J]. 红外 , 2014 , 35 ( 3 ): 37 - 42 .
Li Q Y , Zhang Z N , Liu J B , et al . Application of UAV remote sensing in oil and gas pipeline inspection [J]. Infrared , 2014 , 35 ( 3 ): 37 - 42 . (in Chinese)
冯新 , 张宇 , 刘洪飞 , 等 . 基于分布式光纤传感器的埋地管道结构状态监测方法 [J]. 油气储运 , 2017 , 36 ( 11 ): 1251 - 1257 .
Feng X , Zhang Y , Liu H F , et al . A distributed optical fiber sensor based method for monitoring the structural state of buried pipelines [J]. Oil & Gas Storage and Transportation , 2017 , 36 ( 11 ): 1251 - 1257 . (in Chinese)
冯新 , 王子豪 , 龚士林 , 等 . 供热管道应力分布式实时监测方法与原型试验 [J]. 煤气与热力 , 2019 , 39 ( 2 ): 1 - 7 .
Feng X , Wang Z H , Gong S L , et al . Distributed real-time monitoring method and prototype test of heating pipeline stress [J]. Gas & Heat , 2019 , 39 ( 2 ): 1 - 7 . (in Chinese)
Frings J , Walk T . Distributed fiber optic sensing enhances pipeline safety and security [J]. Oil Gas European Magazine , 2011 , 37 ( 3 ): 132 - 136
Feng X , Wu W J , Li X Y , et al . Experimental investigations on detecting lateral buckling for subsea pipelines with distributed fiber optic sensors [J]. Smart Structures and Systems , 2015 , 15 ( 2 ): 235 - 248 .
Wang Y , Moore I D . Simplified design equations for joints in buried flexible pipes based on Hetenyi Solutions [J]. Journal of Geotechnical and Geoenvironmental Engineering , 2014 , 140 ( 4 ): 04013020-1-14 .
赵毅 , 滕建强 , 杨耀辉 , 等 . 管道悬空灾害的分布式光纤实时监测方法研究 [J]. 水利与建筑工程学报 , 2020 , 18 ( 1 ): 103 - 108 .
Zhao Y , Teng J Q , Yang Y H , et al . Real-time monitoring of the free-span in buried pipelines using distributed fiber optic sensors [J]. Journal of Water Resources and Architectural Engineering , 2020 , 18 ( 1 ): 103 - 108 . (in Chinese)
Feng X , Wu W J , Meng D W , et al . Distributed monitoring method for upheaval buckling in subsea pipelines with BOTDA sensors [J]. Advances in Structural Engineering , 2017 , 20 ( 2 ): 180 - 190 .
韩阳 , 刘洋 , 冯新 , 等 . 3PE防腐管道分布式光纤应变监测试验研究 [J]. 市政技术 , 2018 , 36 ( 3 ): 194 - 197 .
Han Y , Liu Y , Feng X , et al . Experimental study on distributed fiber strain monitoring of 3PE anti-corrosion pipeline [J]. Municipal Engineering Technology , 2018 , 36 ( 3 ): 194 - 197 . (in Chinese)
供水排水工程管道结构设计规范 : GB 50332—2002 [S]. 北京 : 中国建筑工业出版社 , 2002 .
Moreno Z , Paster A . A genetic algorithm for stochastic inversion in contaminant subsurface hydrology [J]. Groundwater , 2019 , 57 ( 5 ): 704 - 717 .
Yuen S Y , Chow C K . A genetic algorithm that adaptively mutates and never revisits [J]. IEEE Transactions on Evolutionary Computation , 2009 , 13 ( 2 ): 454 - 472 .
Fahim A , Hedar A R . Filter-based genetic algorithm for mixed variable programming [J]. Numerical Algebra , 2012 , 1 ( 1 ): 99 - 116 .
Liyanage K , Dhar A S . Stresses in cast iron water mains subjected to non-uniform bedding and localised concentrated forces [J]. International Journal of Geotechnical Engineering , 2017 , 12 ( 4 ): 1 - 9 .
Wang J , Zhang M , Ersoy O K , et al . An improved real-coded genetic algorithm using the heuristical normal distribution and direction-based crossover [J]. Computational Intelligence and Neuroscience , 2019 ( 8 ): 1 - 17 .
Khasawneh H J , Abo-Hammour Z S , Saaideh M I A , et al . Identification of hysteresis models using real-coded genetic algorithms [J]. European Physical Journal Plus , Doi: 10.1140/epjp/i2019-12883-7 http://dx.doi.org/10.1140/epjp/i2019-12883-7 .
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