dc.contributor.authorNi, Pengpeng
dc.contributor.authorQin, X.
dc.contributor.authorYi, Yaolin
dc.date.accessioned2019-02-07T08:08:19Z
dc.date.available2019-02-07T08:08:19Z
dc.date.issued2018
dc.identifier.citationNi, P., Qin, X., & Yi, Y. (2018). Numerical study of earth pressures on rigid pipes with tire-derived aggregate inclusions. Geosynthetics International, 25(5), 494-506. doi:10.1680/jgein.18.00013en_US
dc.identifier.issn1072-6349en_US
dc.identifier.urihttp://hdl.handle.net/10220/47616
dc.description.abstractRigid pipes under high embankments are often installed using the induced trench technique by introducing a compressible zone above the pipe. Made from discarded tires, tire-derived aggregate (TDA) has a high compressibility and is resistant to degradation. A new application, using TDA for induced trench rigid pipes is evaluated. A plane-strain finite element simulation is conducted, in which the constitutive curve of TDA measured from a large-scale compression test is implemented. Comparisons with other compressible materials show that TDA can provide similar benefits of load reduction for rigid pipes. A parametric study is carried out to optimise the design, including the geometry of the TDA zone, the spacing between the pipe and the TDA zone, and the relative stiffness between soil and TDA. Results show that earth pressures around the pipe decrease with the increase of the width of TDA zone but are not influenced significantly by its thickness. In the end, numerical data of the load coefficient for rigid pipes with TDA inclusions are compared with field measurements for other compressible inclusions and two analytical solutions. It is found that existing analytical approaches are applicable to the design of induced trench rigid pipes with TDA inclusions.en_US
dc.format.extent13 p.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesGeosynthetics Internationalen_US
dc.rights© 2018 Thomas Telford (ICE Publishing). All rights reserved. This paper was published in Geosynthetics International and is made available with permission of Thomas Telford (ICE Publishing).en_US
dc.subjectGeosyntheticsen_US
dc.subjectTire-derived Aggregate (TDA)en_US
dc.subjectDRNTU::Engineering::Civil engineeringen_US
dc.titleNumerical study of earth pressures on rigid pipes with tire-derived aggregate inclusionsen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.identifier.doihttp://dx.doi.org/10.1680/jgein.18.00013
dc.description.versionPublished versionen_US


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