Influence of Key Parameters of Cyclic Loading on the Behaviour of Chemically Stabilized Soil Unreinforced and Reinforced with Fibres
Journal: Journal of Building Technology DOI: 10.32629/jbt.v7i1.3375
Abstract
In this work, the effect of the number of cyclic loads on the mechanical behaviour of a chemically stabilized soft soil, reinforced with synthetic polypropylene fibres, and not reinforced, are analysed. This experimental study was carried out on a Portuguese soft soil collected in the Baixo Mondego area in the centre of the country. The laboratory work is based on the following tests: i) monotonic unconfined compression test (UCS), ii) cyclic unconfined compression test performed with different numbers of cycles (2500, 5000, 10000) and several frequencies (0.25, 0.5, 1.0, 2.0 Hz) for a load corresponding to 50% of the strength evaluated in the monotonic tests (UCS) and iii) monotonic UCS tests performed after the cyclic loading stag (UCSpc). The analysis is complemented with the study of the accumulated permanent axial deformation developed during the cyclic stage. The results show that the accumulated permanent axial strain increases with the number of cycles, also the strength and stiffness after the cyclic loading stage increase their values.
Keywords
chemical stabilization; soft soils; unconfined compression strength test; cyclic loading
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[1] ASTM D2487 (2017). Standard practice for classification of soils for engineering purposes (unified soil classification system). West Conshohocken, PA, USA.
[2] BS 1377-3 (1990). Methods of test for soils for civil engineering purposes: chemical and electro-chemical testing. British Standards Institution BSI, Milton Keynes, UK.
[3] BS 1377-7 (1990). Methods of test for soils for civil engineering purposes: shear strength tests (total stress). British Standards Institution BSI, Milton Keynes, UK.
[4] Chauhan, M.S., Mittal, S. and Mohanty, B. (2008). Performance evaluation of silty sand subgrade reinforced with fly ash and fibre. Geotextiles and Geomembranes 26(5), 429-435.
[5] Coelho, P.A.L.F. (2000). Caracterização geotécnica de solos moles - estudo do local experimental da Quinta do Foja . Tesis de maestría, Universidad de Coimbra, Portugal.
[6] Consoli, N.C., Rosa, D.A., Cruz, R.C. and Rosa, A.D. (2011). Water content, porosity and cement content as parameters controlling strength of artificially cemented silty soil. Engineering Geology 122(3-4), 328-333.
[7] Correia, A.A.S. (2011). Aplicabilidade da t écnica de deep mixing aos solos moles do Baixo Mondego . Dissertação de doutoramento, Universidade de Coimbra, Portugal.
[8] Correia, A.A.S., Venda Oliveira, P.J. and Custódio, D.G. (2015). Effect of polypropylene fibres on the compressive and tensile strength of a soft soil, artificially stabilized with binders. Geotextiles and Geomembranes 43(2), 97-106.
[9] Dall'Aqua, G.P., Ghataora, G.S. and Ling, U.K. (2010). Behaviour of fibre-reinforced and stabilized clayey soils subjected to cyclic loading. Studia Geotechnica et Mechanica 32(3), 3-16.
[10] Maher, M. and Ho, Y. (1993). Behavior of fiber-reinforced cemented sand under static and cyclic loads. Geotechnical Testing Journal 16(3), 330-338.
[11] Subramaniam, P. and Banerjee, S. (2014). Factors affecting shear modulus degradation of cement treated clay. Soil Dynamics and Earthquake Engineering 65, 181-188.
[12] Sukontasukkul, P. and Jamsawang, P. (2012). Use of steel and polypropylene fibers to improve flexural performance of deep soil–cement column. Construction and Building Materials 29, 201-205.
[13] Tang, C.-S., Shi, B. and Zhao, L.-Z. (2010). Interfacial shear strength of fiber reinforced soil. Geotextiles and Geomembranes 28(1), 54-62.
[14] Venda Oliveira, P.J., Correia, A.A.S., Teles, J.M.N.P.C. and Custodio, D.G. (2015). Effect of fibre type on the compressive and tensile strength of a soft soil chemically stabilized. Geosynthetics International 23(3), 171-182.
[15] Venda Oliveira, P.J., Correia, A.A.S. and Cajada, J.C.A. (2018). Effect of the type of soil on the cyclic behaviour of chemically stabilized soils unreinforced and reinforced with polypropylene fibres. Soil Dynamics and Earthquake Engineering 115, 336-343.
[16] Yang, C., Cui, Y.J., Pereira, J.M. and Huang, M.S. (2008). A constitutive model for unsaturated cemented soils under cyclic loading. Computers and Geotechnics 35(6), 853-859.
[2] BS 1377-3 (1990). Methods of test for soils for civil engineering purposes: chemical and electro-chemical testing. British Standards Institution BSI, Milton Keynes, UK.
[3] BS 1377-7 (1990). Methods of test for soils for civil engineering purposes: shear strength tests (total stress). British Standards Institution BSI, Milton Keynes, UK.
[4] Chauhan, M.S., Mittal, S. and Mohanty, B. (2008). Performance evaluation of silty sand subgrade reinforced with fly ash and fibre. Geotextiles and Geomembranes 26(5), 429-435.
[5] Coelho, P.A.L.F. (2000). Caracterização geotécnica de solos moles - estudo do local experimental da Quinta do Foja . Tesis de maestría, Universidad de Coimbra, Portugal.
[6] Consoli, N.C., Rosa, D.A., Cruz, R.C. and Rosa, A.D. (2011). Water content, porosity and cement content as parameters controlling strength of artificially cemented silty soil. Engineering Geology 122(3-4), 328-333.
[7] Correia, A.A.S. (2011). Aplicabilidade da t écnica de deep mixing aos solos moles do Baixo Mondego . Dissertação de doutoramento, Universidade de Coimbra, Portugal.
[8] Correia, A.A.S., Venda Oliveira, P.J. and Custódio, D.G. (2015). Effect of polypropylene fibres on the compressive and tensile strength of a soft soil, artificially stabilized with binders. Geotextiles and Geomembranes 43(2), 97-106.
[9] Dall'Aqua, G.P., Ghataora, G.S. and Ling, U.K. (2010). Behaviour of fibre-reinforced and stabilized clayey soils subjected to cyclic loading. Studia Geotechnica et Mechanica 32(3), 3-16.
[10] Maher, M. and Ho, Y. (1993). Behavior of fiber-reinforced cemented sand under static and cyclic loads. Geotechnical Testing Journal 16(3), 330-338.
[11] Subramaniam, P. and Banerjee, S. (2014). Factors affecting shear modulus degradation of cement treated clay. Soil Dynamics and Earthquake Engineering 65, 181-188.
[12] Sukontasukkul, P. and Jamsawang, P. (2012). Use of steel and polypropylene fibers to improve flexural performance of deep soil–cement column. Construction and Building Materials 29, 201-205.
[13] Tang, C.-S., Shi, B. and Zhao, L.-Z. (2010). Interfacial shear strength of fiber reinforced soil. Geotextiles and Geomembranes 28(1), 54-62.
[14] Venda Oliveira, P.J., Correia, A.A.S., Teles, J.M.N.P.C. and Custodio, D.G. (2015). Effect of fibre type on the compressive and tensile strength of a soft soil chemically stabilized. Geosynthetics International 23(3), 171-182.
[15] Venda Oliveira, P.J., Correia, A.A.S. and Cajada, J.C.A. (2018). Effect of the type of soil on the cyclic behaviour of chemically stabilized soils unreinforced and reinforced with polypropylene fibres. Soil Dynamics and Earthquake Engineering 115, 336-343.
[16] Yang, C., Cui, Y.J., Pereira, J.M. and Huang, M.S. (2008). A constitutive model for unsaturated cemented soils under cyclic loading. Computers and Geotechnics 35(6), 853-859.
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