Pipeline–Soil Separation Model for Natural Gas Pipelines Subjected to Parabolic Driving Force
Publication: Journal of Pipeline Systems Engineering and Practice
Volume 10, Issue 1
Abstract
In view of the nonuniform landslide driving force in practical cases and the common landslide–pipeline separation phenomenon, a new pipeline–soil separation model under the action of a parabolic landslide driving force is proposed in this paper, and the closed analytical solutions for this model are derived based on elastic foundation theory. Moreover, the case of a long transportation pipeline crossing the Luozhentian landslide was studied using the analytical method, and comparisons between the analytical results and finite-element method (FEM) results are also made to validate the exactitude of the analytical solutions. In addition, the deflection and stress results of the pipeline in different conditions were also compared, and influences of the calculation parameters on pipelines were analyzed. Three conclusions can be drawn: (1) the deflection and stress of the pipeline increase remarkably along with the growth of length of the separation section; (2) the deflection and stress of the pipeline increase along with the growth of ||, which reflects the nonuniform degree of the parabolic driving force; (3) the deflection of the pipeline decreases slightly with the growth of the resistance coefficient of the landslide soil, whereas the stress changes nonmonotonously; and (4) the deflection and stress of the pipeline slightly decrease with the growth of the lengths of pipeline crossing the landslide, and the maximum deflection of pipeline increases with the growth of the proportion .
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Acknowledgments
This research is supported by the National Key R&D Program of China (2017YFC1501304), National Natural Science Fund of China (No. 41472261), and the Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) (No. CUGCJ1701).
References
Barber, J. R. 2011. “Beams on elastic foundations.” In Intermediate mechanics of materials, 353–384. Dordrecht, Netherlands: Springer.
Chen, X. Z., and Y. F. Cui. 2017. “The formation of the Wulipo landslide and the resulting debris flow in Dujiangyan City, China.” J. Mountain Sci. 14 (6): 1100–1112. https://doi.org/10.1007/s11629-017-4392-1.
Cui, Y., D. Chan, and A. Nouri. 2017. “Coupling of solid deformation and pore pressure for undrained deformation—A discrete element method approach.” Int. J. Numer. Anal. Methods Geomech. 41 (18): 1943–1961. https://doi.org/10.1002/nag.2708.
Cui, Y., A. Nouri, D. Chan, and E. Rahmati. 2016. “A new approach to the DEM simulation of sand production.” J. Pet. Sci. Eng. 147 (Nov): 56–67. https://doi.org/10.1016/j.petrol.2016.05.007.
Kishawy, H. A., and H. A. Gabbar. 2010. “Review of pipeline integrity management practices.” Int. J. Pressure Vessels Pip. 87 (7): 373–380. https://doi.org/10.1016/j.ijpvp.2010.04.003.
Lee, E. M., J. M. E. Audibert, J. V. Hengesh, and D. J. Nyman. 2009. “Landslide-related ruptures of the Camisea pipeline system, Peru.” Q. J. Eng. Geol. Hydrogeol. 42 (2): 251–259. https://doi.org/10.1144/1470-9236/08-061.
Li, B. 2016. “Material supply management mode of gas transmission project from Sichuan to east China.” [In Chinese.] NEI JIANG KE JI. 37 (6): 9–11.
Li, C. D., H. M. Tang, L. Q. Wang, and H. Y. Jing. 2009. “Hazard evaluation method study on pipeline of underground crossing landslide area.” In Proc., Int. Pipelines and Trenchless Technology Conf., 1081–1092. Reston, VA: ASCE.
Li, C. D., L. Q. Wang, H. Y. Jing, and Q. T. Liu. 2013. “Protection control scheme and evaluation of effects on pipeline crossing beneath landslide area.” J. Pipeline Syst. Eng. Pract. 4 (1): 41–48. https://doi.org/10.1061/(ASCE)PS.19491204.0000130.
Li, C. D., X. Y. Wang, H. M. Tang, G. P. Lei, J. F. Yan, and Y. Q. Zhang. 2017a. “A preliminary study on the location of the stabilizing piles for colluvial landslides with interbedding hard and soft bedrocks.” Eng. Geol. 224: 15–28. https://doi.org/10.1016/j.enggeo.2017.04.020.
Li, C. D., J. J. Wu, H. M. Tang, J. Wang, F. Chen, and D. M. Liang. 2015. “A novel optimal plane arrangement of stabilizing piles based on soil arching effect and stability limit for 3D colluvial landslides.” Eng. Geol. 195 (Sep): 236–247. https://doi.org/10.1016/j.enggeo.2015.06.018.
Li, C. D., J. J. Wu, J. Wang, and F. Chen. 2014. “Influence of buried depth and non-uniformly distributed driving force on stress characteristics of pipeline in landslide regions.” In Proc., Int. Conf. on Pipelines and Trenchless Technology, 334–342. Reston, VA: ASCE.
Li, C. D., J. F. Yan, J. J. Wu, G. P. Lei, L. Q. Wang, and Y. Q. Zhang. 2017b. “Determination of embedded length of stabilizing piles in colluvial landslides with upper hard and lower weak bedrock based on deformation control principle.” In Bulletin of engineering geology and the environment, 1–20. Berlin: Springer.
Liu, W. Q., Q. Li, J. Lu, C. D. Li, W. M. Yao, and J. B. Zeng. 2018. “Improved plane layout of stabilizing piles based on the piecewise function expression of the irregular driving force.” J. Mountain Sci. 15 (4): 871–881. https://doi.org/10.1007/s11629-017-4671-x.
Wang, T. T., X. Z. Yan, and X. J. Yang. 2010. “Force analysis of suspended pipeline in collapsible loess areas based on elastic-plastic foundation model.” J. China Univ. Petroleum 34 (4): 113–118. https://doi.org/10.3969/j.issn.1673-5005.2010.04.022.
Wu, J. J., C. D. Li, Q. T. Liu, and F S. Fan. 2017. “Optimal isosceles trapezoid cross section of laterally loaded piles based on friction soil arching.” KSCE J. Civ. Eng. 21 (7): 2655–2664. https://doi.org/10.1007/s12205-017-1311-5.
Wu, R., Y. G. Mei, Q. L. Deng, C. L. Pang, and D. Y. Zhao. 2014a. “Stress analysis of buried gas pipeline under landslide load.” [In Chinese.] J. Constr. Sci. Eng. 3: 105–111.
Wu, X. N., H. F. Lu, S. J. Wu, H. Kun, X. Chen, F. X. Kang, and Z. L. Liu. 2014b. “Analysis of suspended pipeline stress sensitivity.” Appl. Mech. Mater. 501–504 (253): 2331–2334. https://doi.org/10.4028/www.scientific.net/AMM.501-504.2331.
Xiao, W., J. Chen, H. Shen, L. Guo, and Z. Zhan. 2012. “Preliminary hazard assessment on a pipeline above a goaf.” In Proc., Int. Conf. on Pipelines and Trenchless Technology, 317–326. Reston, VA: ASCE.
Xiong, Q. D., C. F. Li, and F. L. Kong. 2010. “Experimental study of slide force acting on anti-slide pile about reservoir slope.” [In Chinese.] Chongqing Archit. 9 (4): 4–6.
Yan, X. Z., Wang, T. T., Yang, X. J., and Wang, J. J. 2009. “Study on stresses and deformations of suspended pipeline in collapsible loess areas based on elastic-plastic foundation model.” In Proc., Int. Conf. Pipelines Trenchless Technology, 1970–1979. Reston, VA: ASCE.
Zhang, J., Z. Liang, and C. Han. 2016. “Mechanical behavior analysis of the buried steel pipeline crossing landslide area.” J. Press. Vessel Technol. 138 (5): 051702. https://doi.org/10.1115/1.4032991.
Zhang, J., Z. Liang, and C. J. Han. 2014. “Numerical modeling of mechanical behavior for buried steel pipelines crossing subsidence strata.” PLoS One 10 (6): 1–16. https://doi.org/10.1371/journal.pone.0130459.
Zhang, Y. Q., H. M. Tang, C. D. Li, G. Y. Lu, Y. Cai, J. R. Zhang, and F. L. Tan. 2018. “Design and testing of a flexible inclinometer probe for model tests of landslide deep displacement measurement.” Sensors 18 (224): 1–16. https://doi.org/10.3390/s18010224.
Zheng, J. Y., B. J. Zhang, P. F. Liu, and L. L. Wu. 2012. “Failure analysis and safety evaluation of buried pipeline due to deflection of landslide process.” Eng. Failure Anal. 25 (4): 156–168. https://doi.org/10.1016/j.engfailanal.2012.05.011.
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©2018 American Society of Civil Engineers.
History
Received: Dec 22, 2017
Accepted: Jun 14, 2018
Published online: Oct 26, 2018
Published in print: Feb 1, 2019
Discussion open until: Mar 26, 2019
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