Abstract
One fifth of the land mass in India is covered by black cotton soil (BCS). Due to low permeability, poor strength and high compressibility, they pose huge engineering problems. In the present study, the influence of stone column on the consolidation and strength behaviour of black cotton soil is meticulously studied. Laboratory tests are carried out on both end bearing and floating type stone columns, having diameters (d) 50 mm, 60 mm and 70 mm with l/d ratios 3, 4 and 5 (l being the length of stone column), installed in black cotton soil. The load-settlement and consolidation behaviour of unreinforced and reinforced black cotton soil are compared. It has been found that for d = 60 mm and l/d = 3, the load carrying capacity for reinforced BCS increases by 23% and 20% for end bearing and floating type stone columns, respectively. Moreover the void ratio (e), coefficient of compressibility (av), coefficient of volume change (mv), coefficient of consolidation (Cv), coefficient of permeability (k) and compression index (Cc) of black cotton soils are significantly affected by the l/d ratio and diameter of the stone column. The present study reflects the efficiency of stone columns as suitable ground improvement technique for BCS.
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Abbreviations
- a v :
-
Coefficient of compressibility
- c :
-
Cohesion
- C c :
-
Compression index
- C u :
-
Coefficient of uniformity
- C v :
-
Coefficient of consolidation
- d :
-
Pile diameter
- D 50 :
-
Effective grain size
- e max :
-
Maximum void ratio
- e min :
-
Minimum void ratio
- G s :
-
Specific gravity
- k :
-
Coefficient of permeability
- l :
-
Pile length
- LL :
-
Liquid limit
- m v :
-
Coefficient of volume change
- OMC :
-
Optimum moisture content
- PI :
-
Plasticity index
- PL :
-
Plastic limit
- Φ :
-
Soil friction angle
- ρ d,max :
-
Maximum dry density
References
Ambily AP, Gandhi SR (2004) Experimental and theoretical evaluation of stone column in soft clay. Proceedings of International Conference on Geosynthetics and Geoenvironmental Engineering, IIT Bombay, Mumbai, India, 201–206
Barksdale RD, Bachus RC (1983) Design and construction of stone columns. Report No. FHWA/RD-83/026, I, Federal Highway Administration, Washington DC, USA
Basack S, Siahaan F, Indraratna B, Rujikiatkamjorn C (2018) Stone column-stabilized soft-soil performance influenced by clogging and lateral deformation: Laboratory and numerical evaluation. International Journal of Geomechanics 18(6):04018058–104018058–18, DOI: https://doi.org/10.1061/(ASCE)GM.1943-5622.0001148
Black J, Sivakumar V, Madhav MR, McCabe B (2006) An improved experimental test set-up to study the performance of granular columns. Geotechnical Testing Journal 29(3):193–199, DOI: https://doi.org/10.1520/GTJ14195
Black J, Sivakumar V, McKinley JD (2007) Performance of clay samples reinforced with vertical granular columns. Canadian Geotechnical Journal 44:89–95, DOI: https://doi.org/10.1139/T06-081
Castro J (2017) Groups of encased stone columns: Influence of column length and arrangement. Geotextiles and Geomembranes 45(2):68–80, DOI: https://doi.org/10.1016/j.geotexmem.2016.12.001
Castro J, Cimentada A, Costa AD, Canizal J, Sagaseta, C (2013) Consolidation and deformation around stone columns: Comparison of theoretical and laboratory results. Computers and Geotechnics 49:326–337, DOI: https://doi.org/10.1016/j.compgeo.2012.09.004
Castro J, Karstunen M, Sivasithamparam N (2014) Influence of stone column installation on settlement reduction. Computers and Geotechnics 59:87–97, DOI: https://doi.org/10.1016/j.compgeo.2014.03.003
Das AK, Deb K (2014) Modeling of uniformly loaded circular raft resting on stone column-improved ground. Soils and Foundations 54(6):1212–1224, DOI: https://doi.org/10.1016/j.sandf.2014.11.014
Deb K, Basudhar PK, Chandra S (2010) Extensible geosynthetics and stone-column-reinforced soil. Proceedings of the Institution of Civil Engineers — Ground Improvement 163(4):231–236, DOI: https://doi.org/10.1680/grim.2010.163.4.231
Deb K, Samadhiya NK, Namdeo JB (2011) Laboratory model studies on unreinforced and geogrid-reinforced sand bed over stone column-improved soft clay. Geotextiles and Geomembranes 29(2): 190–196, DOI: https://doi.org/10.1016/j.geotexmem.2010.06.004
Debnath P, Dey AK (2017) Bearing capacity of geogrid reinforced sand over encased stone columns in soft clay. Geotextiles and Geomembranes 45(6):653–664, DOI: https://doi.org/10.1016/j.geotexmem.2017.08.006
Guetif Z, Bouassida M, Debats JM (2007) Improved soft clay characteristics due to stone column installation. Computers and Geotechnics 34:104–111, DOI: https://doi.org/10.1016/j.compgeo.2006.09.008
Han J, Ye SL (2002) A theoretical solution for consolidation rates of stone column-reinforced foundations accounting for smear and well resistance effects. International Journal of Geomechanics 2(2):135–151, DOI: https://doi.org/10.1061/(ASCE)1532-3641(2002)2:2(135)
Hasan M, Samadhiya NK (2017) Performance of geosynthetic-reinforced granular piles in soft clays: Model tests and numerical analysis. Computers and Geotechnics 87:178–187, DOI: https://doi.org/10.1016/j.compgeo.2017.02.016
Hugher JMO, Withers NJ (1974) Reinforcing of soft cohesive soils with stone column. Ground Engineering 7(3):42–49
IS 15284: Part 1 (2003) Design and construction for ground improvement — Part 1: Stone columns. Bureau of Indian Standards, New Delhi, India
Lo SR, Zhang R, Mak J (2010) Geosynthetic-encased stone columns in soft clay: A numerical study. Geotextiles and Geomembranes 28(3): 292–302, DOI: https://doi.org/10.1016/j.geotexmem.2009.09.015
Lu M, Jing H, Zhou Y, Xie K (2017) General analytical model for consolidation of stone column — reinforced ground and combined composite ground. International Journal of Geomechanics 17(6): 04016131–104016131–18, DOI: https://doi.org/10.1061/(aSCE)GM.1943-5622.0000836
Maheshwari P, Chauhan VB (2013) Beams on extensible geosynthetics and stone-column-improved soil. Proceedings of the Institution of Civil Engineers — Ground Improvement 166(4):233–247, DOI: https://doi.org/10.1680/grim.12.00005
Miranda M, Costa AD (2016) Laboratory analysis of encased stone columns. Geotextiles and Geomembranes 44(3):269–277, DOI: https://doi.org/10.1016/j.geotexmem.2015.12.001
Ng KS, Tan SA (2014) Design and analyses of floating stone columns. Soils and Foundations 54(3):478–487, DOI: https://doi.org/10.1016/j.sandf.2014.04.013
Peck RB, Hanson WE, Thornburn TH (1974) Foundation engineering. Wiley, New York, NY, USA
Ranjan G, Rao BG (1986) Granular piles for ground improvement. Proceedings of the 1st international conference on piling and deep foundations, September 1–5, Beijing, China
Ranjan G, Rao ASR (2014) Basic and applied soil mechanics, 2nd edition. New Age International Publishers, New Delhi, India
Terzhagi K, Peck RB (1967) Soil mechanics in engineering practice, 2nd edition. John Wiley and Sons, Inc., New York, NY, USA
Yoo C, Abbas Q (2019) Performance of geosynthetic-encased stone column-improved soft clay under vertical cyclic loading. Soils and Foundations 59(6):1875–1890, DOI: https://doi.org/10.1016/j.sandf.2019.08.006
Zhang L, Xu Z, Zhou S (2020) Vertical cyclic loading response of geosynthetic-encased stone column in soft clay. Geotextiles and Geomembranes 48(6):897–911, DOI: https://doi.org/10.1016/j.geotexmem.2020.07.006
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Bailappanavar, N.I., Kumar, M. & Chatterjee, K. Effect of Stone Columns on Strength and Consolidation Characteristics of Black Cotton Soil. KSCE J Civ Eng 25, 1214–1228 (2021). https://doi.org/10.1007/s12205-021-0863-6
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DOI: https://doi.org/10.1007/s12205-021-0863-6