Influence of submarine pipeline vibration on soil liquefaction under random wave
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摘要:
海底管道-土体-水体相互作用对土体和管道的稳定性具有重要影响，但波浪作用下海底管道对其周围土体性质的影响仍有待深入研究。通过一系列室内波浪水槽试验，研究了波浪荷载和管道振动作用下海床土体内部的超孔隙水压力响应。实验结果表明，管道的铺设会增大海底土体超孔隙水压力累积程度，当管道发生振动时，海床土体超孔隙水压力累积程度进一步增大，从而增加了土体液化势。此外，波高增加也会导致海床土体的超孔隙水压力累积程度增大。本文研究成果对管道-土体相互作用研究和海底管道维护具有指导意义。
Abstract:The interaction of submarine pipeline, soil, and water strongly affects the stability of submarine pipeline. However, the research on the change of soil properties around submarine pipeline under wave action is insufficient. The response of excess pore water pressure under wave load and pipeline vibration was studied in a series of laboratory wave flume tests. Results show that the existence of pipeline increased the accumulative pore water pressure of soil, thus enhancing the liquefaction potential of seabed. The pipeline vibration increased the accumulation degree of excess pore water pressure. In addition, wave conditions alter the response of seabed to the excess pore water pressure, namely, the increase of wave height intensify the accumulative pore water pressure. This study provided a guide to studying the pipe–soil-mass interaction and the submarine pipeline maintenance.
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Key words:
- water tank experiment /
- silty seabed /
- random waves /
- pipeline vibration /
- pore pressure response
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表 1 试验条件简表
Table 1. Summary of the experimental conditions
实验序号 水深D/cm 有效波高H/cm 平均周期T/s 振动荷载 Test1-1 50 10 2 无管道 Test1-2 14 Test1-3 16 Test2-1 50 10 2 否 Test2-2 14 Test2-3 16 Test3-1 50 10 2 是 Test3-2 14 Test3-3 16 Test4-1 50 14 1.5 是 Test4-2 2 Test4-3 2.2 Test4-4 2.5 
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表 2 最大累积孔隙水压力（
$ {\stackrel{-}{P}}_{\mathrm{m}\mathrm{a}\mathrm{x}} $ ）与波浪和管道条件之间的皮尔逊相关系数Table 2. Pearson correlation coefficient between the maximum cumulative pore water pressure (
${\stackrel{-}{P}}_{\mathrm{m}\mathrm{a}\mathrm{x}} $ ) and wave/pipeline conditions波高 平均周期 管道存在 管道振动 最大累积孔隙水压力 
0.267* −0.158 0.486** 0.557** 注：* 
受某变量影响的置信区间在95%以上；**
受某变量影响的置信区间在99%以上；相关性分析样本数量N=84。
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表 3 不同管道状态下不同深度处海床累积孔压
$ {\stackrel{-}{P}}_{\mathrm{m}\mathrm{a}\mathrm{x}} $ 与液化度$ Y $ 统计Table 3. Statistics of accumulated pore pressure and liquefaction degree at different depths under different pipeline conditions
管道状态 孔压测量深度z/cm 最大累积孔隙水压力 
/Pa有效应力 
/Pa最大液化度 
/%最大液化度平均值 
无管道
（Test1-3）5 25.59 301.74 8.48
6.1410 39.019 603.48 6.46 15 48.74 905.22 5.38 30 76.41 1 810.44 4.22 静止管道
（Test2-3）5 38.27 301.74 12.68
11.0710 85.45 603.48 14.16 15 88.43 905.22 9.77 30 138.80 1 810.44 7.67 振动管道
（Test3-3）5 143.50 301.74 47.56
26.7510 163.97 603.48 27.17 15 165.97 905.22 18.33 30 252.57 1 810.44 13.95 注：波况条件为水深D=50 cm，波高H=16 cm，周期T=2.0 s。
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[1] 邓海峰. 随机波浪作用下海底管线和海床相互作用研究[D]. 大连: 大连理工大学, 2014.
[2] BLEVINS R D,SAUNDERS H. Flow induced vibration[J]. Journal of Mechanical Design,1979,101(1):6. doi: 10.1115/1.3454027
[3] MANAN A,KAMAL K,RATLAMWALA T A H,et al. Failure classification in natural gas pipe-lines using artificial intelligence:a case study[J]. Energy Reports,2021,7:7640-7647. doi: 10.1016/j.egyr.2021.10.093
[4] FORAY P,BONJEAN D,MICHALLET H,et al. Fluid-soil-structure interaction in liquefaction around a cyclically moving cylinder[J]. Journal of Waterway,Port,Coastal,and Ocean Engineering,2006,132(4):289-299.
[5] XU J S,XU X Y,ZHANG Y Q,et al. Experimental study on the influence of pipeline vibration on silty seabed liquefaction[J]. Water,2022,14(11):1782. doi: 10.3390/w14111782
[6] SUMER B M,HATIPOGLU F,FREDSØE J,et al. The sequence of sediment behaviour during wave-induced liquefaction[J]. Sedimentology,2006,53(3):611-629. doi: 10.1111/j.1365-3091.2006.00763.x
[7] MÖRZ T,KARLIK E A,KREITER S,et al. An experimental setup for fluid venting in unconsolidated sediments:new insights to fluid mechanics and structures[J]. Sedimentary Geology,2007,196(1/4):251-267.
[8] Pipeline Flotation Research Council. ASCE preliminary research on pipeline flotation[J]. Journal of the Pipeline Division,1966,92(1):27-74. doi: 10.1061/JPLEAZ.0000096
[9] CHRISTIAN J T, TAYLOR P K, YEN J K C, et al. Large diameter underwater pipe line for nuclear power plant designed against soil liquefaction[C]//Proceedings of the Sixth Annual Offshore Technology Conference. Houston: Offshore Technology Conference, 1974: 597-606.
[10] SUMER B M,TRUELSEN C,FREDSOE J. Liquefaction around pipelines under waves[J]. Journal of Waterway,Port,Coastal,and Ocean Engineering,2006,132(4):266-275.
[11] DUNN S L,VUN P L,CHAN A H C,et al. Numerical modeling of wave-induced liquefaction around pipelines[J]. Journal of Waterway,Port,Coastal,and Ocean Engineering,2006,132(4):276-288.
[12] ZHOU X L,ZHANG J,GUO J J,et al. Cnoidal wave induced seabed response around a buried pipeline[J]. Ocean Engineering,2015,101:118-130. doi: 10.1016/j.oceaneng.2015.04.032
[13] ZHAO H Y,JENG D S,LIAO C C. Parametric study of the wave-induced residual liquefaction around an embedded pipeline[J]. Applied Ocean Research,2016,55:163-180. doi: 10.1016/j.apor.2015.12.005
[14] LIANG Z D,JENG D S,LIU J W. Combined wave–current induced seabed liquefaction around buried pipelines:design of a trench layer[J]. Ocean Engineering,2020,212:107764. doi: 10.1016/j.oceaneng.2020.107764
[15] ZHAO H Y,LIU X L,JENG D S,et al. Numerical investigation into the vulnerability to liquefaction of an embedded pipeline exposed to ocean storms[J]. Coastal Engineering,2022,172:104056. doi: 10.1016/j.coastaleng.2021.104056
[16] DAMGAARD J, PALMER A. Pipeline stability on a mobile and liquefied seabed: a discussion of magnitudes and engineering implications[C]//Proceedings of the 20th International Conference on Offshore Mechanics and Arctic Engineering. Rio de Janeiro, 2001.
[17] TEH T C,PALMER A C,BOLTON M D,et al. Stability of submarine pipelines on liquefied seabeds[J]. Journal of Waterway,Port,Coastal,and Ocean Engineering,2006,132(4):244-251.
[18] SUMER B M,FREDSØE J,CHRISTENSEN S,et al. Sinking/floatation of pipelines and other objects in liquefied soil under waves[J]. Coastal Engineering,1999,38(2):53-90. doi: 10.1016/S0378-3839(99)00024-1
[19] SUMER B M,HATIPOGLU F,FREDSØE J,et al. Critical flotation density of pipelines in soils liquefied by waves and density of liquefied soils[J]. Journal of Waterway,Port,Coastal,and Ocean Engineering,2006,132(4):252-265.
[20] TIAN Y H,YOUSSEF B,CASSIDY M J. Assessment of pipeline stability in the Gulf of Mexico during hurricanes using dynamic analysis[J]. Theoretical and Applied Mechanics Letters,2015,5(2):74-79. doi: 10.1016/j.taml.2015.02.002
[21] ZHAO K,WANG Q Z,CHEN S,et al. Dynamic response of pipelines in liquefiable seabed under nature loadings:waves and currents[J]. Ocean Engineering,2021,230:109051. doi: 10.1016/j.oceaneng.2021.109051
[22] REIMNITZ E,MARSHALL N F. Effects of the Alaska earthquake and tsunami on recent deltaic sediments[J]. Journal of Geophysical Research,1965,70(10):2363-2376. doi: 10.1029/JZ070i010p02363
[23] LUAN M T,ZHANG X L,YANG Q,et al. Numerical analysis of liquefaction of porous seabed around pipeline fixed in space under seismic loading[J]. Soil Dynamics and Earthquake Engineering,2009,29(5):855-864. doi: 10.1016/j.soildyn.2008.09.002
[24] SAEEDZADEH R,HATAF N. Uplift response of buried pipelines in saturated sand deposit under earthquake loading[J]. Soil Dynamics and Earthquake Engineering,2011,31(10):1378-1384. doi: 10.1016/j.soildyn.2011.05.013
[25] DAMGAARD J S,SUMER B M,TEH T C,et al. Guidelines for pipeline on-bottom stability on liquefied noncohesive seabeds[J]. Journal of Waterway,Port,Coastal,and Ocean Engineering,2006,132(4):300-309.
[26] TEH T C,PALMER A C,DAMGAARD J S. Experimental study of marine pipelines on unstable and liquefied seabed[J]. Coastal Engineering,2003,50(1/2):1-17.
[27] CLUKEY E C,KULHAWY F H,LIU P L F,et al. The impact of wave loads and pore-water pressure generation on initiation of sediment transport[J]. Geo-Marine Letters,1985,5(3):177-183. doi: 10.1007/BF02281636
[28] ZHANG S T,JIA Y G,WANG Z,et al. Wave flume experiments on the contribution of seabed fluidization to sediment resuspension[J]. Acta Oceanologica Sinica,2018,37(3):80-87. doi: 10.1007/s13131-018-1143-2
[29] ZHANG S T,JIA Y G,ZHANG Y Q,et al. Influence of seepage flows on the erodibility of fluidized silty sediments:parameterization and mechanisms[J]. Journal of Geophysical Research:Oceans,2018,123(5):3307-3321.
[30] SASSA S,TAKAYAMA T,MIZUTANI M,et al. Field observations of the build-up and dissipation of residual pore water pressures in seabed sands under the passage of storm waves[J]. Journal of Coastal Research,2006(39):410-414.
[31] PU J J, XU J S, LI G X. Experimental study on damping characteristics of pipe vibration in liquefied silt[C]//Proceedings of the 23rd International Offshore and Polar Engineering Conference. Anchorage: International Society of Offshore and Polar Engineers, 2013: 266-271.
[32] Det Norske Veritas, DNV. Free spanning pipelines[Z]. DNV-RP-F105, Høvik, Norway, 2006.
[33] YAGHOOBI M,MAZAHERI S,JABBARI E. Determining natural frequency of free spanning offshore pipelines by considering the seabed soil characteristics[J]. Journal of the Persian Gulf (Marine Science),2012,3(8):25-34.
[34] TZANG S Y,OU S H. Laboratory flume studies on monochromatic wave-fine sandy bed interactions:part 1. soil fluidization[J]. Coastal Engineering,2006,53(11):965-982. doi: 10.1016/j.coastaleng.2006.06.003
[35] GODA Y. A comparative review on the functional forms of directional wave spectrum[J]. Coastal Engineering Journal,1999,41(1):1-20. doi: 10.1142/S0578563499000024
[36] XU X B,XU G H,YANG J J,et al. Field observation of the wave-induced pore pressure response in a silty soil seabed[J]. Geo-Marine Letters,2021,41(1):13. doi: 10.1007/s00367-020-00680-6
[37] 张丽萍. 黄河口沉积物液化度与再悬浮关系研究[D]. 青岛: 中国海洋大学, 2013.
[38] 徐兴雨,齐静静,陈凯,等. 埕岛油田海底管道悬空特征及其影响因素[J]. 海洋地质前沿,2023,39(1):77-84. doi: 10.16028/j.1009-2722.2022.072
[39] JIA Y G,ZHANG L P,ZHENG J W,et al. Effects of wave-induced seabed liquefaction on sediment re-suspension in the Yellow River Delta[J]. Ocean Engineering,2014,89:146-156. doi: 10.1016/j.oceaneng.2014.08.004
[40] 张河苇. 基于大数据分析的管道缺陷评估及预测方法研究[D]. 北京: 中国石油大学（北京）, 2020.
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