Triaxial test of drained sand reinforced with plastic layers

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• 作者：S. Nouri ; A. Nechnech ; B. Lamri ; M. Lurdes Lopes
• 关键词：Triaxial test ; Soil reinforcement ; Geotextiles ; Waste plastic ; Shear strength ; Secant modulus
• 刊名：Arabian Journal of Geosciences
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：9
• 期：1
• 全文大小：694 KB
• 参考文献：Al-Refeai TO (1990) Laboratory tests on geotextiles reinforced dune sans. Arab J Sci Eng 15(2A):165鈥?74
  Athanasopoulos GA (1993) Effect of particle size on the mechanical behaviour of sand-geotextile composites. Geotextiles and Geomembranes 12: 255--273
  Ashmawy AK, Bourdeau PL (1998) Effect of geotextile reinforcement on stress鈥搒train and volumetric response of sand. Proceedings of the Sixth International Conference on Geosynthetics. Atlanta 2:1079鈥?082
  Bishop AW, Henkel DJ (1969) The measurement of soil properties in the triaxial test. Wiliam Clowes and Sons Limited, London and Beccles
  Consoli NC, Montardo JP, Prietto PDM, Passa GS (2002) Engineering behavior of sand reinforced with plastic waste. Geotech Geoenvironmental Eng 128(6):462鈥?72CrossRef
  Dali BM (1989) Renforcement des sols par des nappes d鈥櫭﹍茅ments souples et discontinus: Etude de proc茅d茅 Plasterre. Th猫se de doctorat, Universit茅 Lyon I
  Gray DH, Al-Refeai TO (1986) Behavior of fabric fiber reinforced sand. Geotech Eng 112(8):804鈥?20CrossRef
  Gray DH, Asce AM, Ohashi H (1983) Mechanics of fiber reinforcement in sand. Geotech Eng 109(3):335鈥?53CrossRef
  Haeri SM, Noorzad R, Oskoorouchi AM (2000) Effect of geotextile reinforcement on the mechanical behaviour of sand. Geotext Geomembr 18:385鈥?02CrossRef
  Head KH (1986) Manual of soil laboratory testing, 2. Pentech Press, London
  Lade PV, Duncan JM (1973) Cubical triaxial tests on cohesionless soil. Journal of Soil Mechanics and Foundations Division ASCE, vol. 99, n掳 SM10:793鈥?12
  Latha MG, Murthy VS (2007) Effects of reinforcement form on the behaviour of geosynthetic reinforced sand. Geotext Geomembr 25:23鈥?2CrossRef
  Messas T (1999) Caract茅risation et renforcement des sols avec inclusion de nappes plastiques souples discontinues. Rev Fr G茅otech 87:55鈥?2
  Michalowski RL, Cermak J (2003) Triaxial compression of sand reinforced with fibers. Geotech Geoenvironmental Eng 129(2):125鈥?36CrossRef
  Moghaddas TSN, Asakereh A (2007) Strength evaluation of wet reinforced silty sand by triaxial test. International Journal of Civil Engineering 5(4):274鈥?83
  Nguyen MD, Yang KH, Lee SH, Wu CS, Tsai MH (2013) Behavior of nonwoven-geotextile-reinforced sand and mobilization of reinforcement strain under triaxial compression. Geosynth Int 20:207鈥?25CrossRef
  Noorzad R, Mirmoradi SH (2010) Laboratory evaluation of the behavior of a geotextile reinforced clay. Geotext Geomembr 28:386鈥?92CrossRef
  Rakotondramanitra JD (1988) Renforcement des sols par des nappes de d茅chets de mati猫res plastiques. Th猫se de doctorat, Universit茅 Lyon I
  Richa B (1992) Etude au triaxial dynamique de liqu茅faction des sols renforc茅s par g茅otextiles. Universit茅 de Joseph Fourier IRIGM-LGM, Th猫se de doctorat
  Vercueil D, Billet P, Cordary D (1997) Study of the liquefaction resistance of a saturated sand reinforced with geosynthetics. Soil Dyn Earthq Eng 16:417鈥?25CrossRef
  
• 作者单位：S. Nouri (1)
  A. Nechnech (2)
  B. Lamri (1)
  M. Lurdes Lopes (3)
  
  1. Civil Engineering Department, UHBC, BP 151, Hay Essalam Chlef, 02000, Algeria
  2. Faculty of Civil Engineering, USTHB, BP 32, El Alia, 16111, Bab Ezzouar Algiers, Algeria
  3. Civil Engineering Department, UP, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
  
• 刊物类别：Earth and Environmental Science
• 出版者：Springer Berlin Heidelberg
• ISSN：1866-7538

文摘

During the past earthquake, the liquefaction phenomenon of saturated sand mixture has been the cause of severe damage to various buildings and other structures. The catastrophic nature of this type of failure obliged to build a structure on geosynthetics will be used to reinforce the soil and improve its mechanical properties. Reinforcing elements in the form of layers or sheets of waste materials in soil is important because of their use in practical civil engineering and geotechnical applications. The main advantages of such materials are they are locally available, inexpensive, and recyclable. Waste plastics have been successfully used as reinforcement in soil to improve shear strength parameters and the stiffness modulus. This paper focuses on the behavior of plastic reinforcement in sand under triaxial monotonic drained conditions. Laboratory triaxial compression tests were carried out to determine stress and strain, volumetric change behavior, and shear strength parameters and to estimate the strength ratio at various strain levels in sand reinforced with plastic layers. The test involved one to five plastic layers that were placed at regular vertical spacings within the sand. The results demonstrated that the inclusion of plastic layers increases the maximum deviator stress, shear strength parameters and ductility, with the maximum increase corresponding to the five layers of plastic. The inclusion of plastic layers reduces dilation and increases the strength ratio, with the percent increase being greater at higher strain levels. The lower secant modulus was measured in the unreinforced and reinforced sand, with the latter exhibiting higher values of secant modulus at axial strains of 1 % that tend to stabilize for higher values of axial strain. Keywords Triaxial test Soil reinforcement Geotextiles Waste plastic Shear strength Secant modulus