Study on Mechanical Behaviors of Underground Pipelines Due to Excavation of Foundation Pit

Abstract:

It is necessary to study the mechanic behavior of underground pipelines during the excavation of the foundation pit, because the excavation will inevitably endanger the nearby underground pipelines. Three factors include the depth of underground pipelines, the distance from the pipeline to the foundation pit and ground load are considered to conform comparative analysis, in order to study the variaty on the stress and deformation of the underground pipelines. The foundation surporting type and the soil layer distribution are also considered during the numerical simulation. The results show that the distance between pipeline and foundation has more influence on the underground pipelines than other two factors, the damage most likely occurred in the bottom right in the pipeline near the foundation pit.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 2065-2070
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.2065
• Online since: May 2011
• Authors: Run Lin Yang, Juan Juan Wang, Hai Cheng Zhou
• Keywords: Geotechnical Engineering, Influence Factor, Mechanic Behavior, Underground Pipeline

References

[1] Li Da-yong, Gong Xiao-nan. Response of jointed ducthe pipeline to deep excavation in soft soil. China Civil Engineering Journal, (2003)

[2] Kristin M. Molnar, Richard J. Finno, Edwin C. Rossow. Analysis of effects of deep beacedexcavations on adjacent buried utilities [R]. School of Civil and Environmental Engineering , Northwestern University, December, (2003)

[3] O'Rourke T D,Trautmann C H.Buried pipeline response to tunneling ground movement.Europipe'82.Basel,Switzerland:1982.9-15

[4] Wu Bo, Gao Bo, Study on influence of metro tunnel excavation on buried pipelines, Journal of Rock Mechanics and Geotechnical Engineering. Vol.25,No.4,(2004)

[5] Bi Ji-hong, Liu Wei, Jiang Zhi-feng.Analysis of tunnel excavation on underground pipeline. Rock Mechanics and Geotechnical Engineering,2006,27(84):1317-1321

[6] Bracegirdle A,Mair R J,Nyren R J,Taylor R N.Amethodology for evaluating potential damage to cast iron pipes induced by tunneling.Proc.Geotechnical Aspects of Underground Construction in Soft Groud London, Balkema, 1996, 659-664

[7] Yoo C S.Damage assessment of buried pipeline due to tunneling-intruduced ground movements. J.Korean Geotech.Soc,2001,17(14):71-86

[8] Voster T E B,Klar A,Soga K,Estimating the effects of tuneling on existing pipelines Journal of geotechnical and geoenvironmental engineering, 2005, 131(11): 1399-1410

DOI: 10.1061/(asce)1090-0241(2005)131:11(1399)

[9] Li Da-yong, Gong Xiao-nan, Zhang Tu-qiao. Numercal simulation of the buried pipelines protection adjacent to deep excavation. Journal of Rock Mechanics and Geotechnical Engineering.(2001)