Abstract
Construction on soft soils has always been a problem to geotechnical engineers. A review of the literature reveals that many techniques and methods have been developed to work with such soils. The technique of soft soil improvement by the installation of stone columns has become popular in recent past and has proven its application to many construction situations in soft soils. Construction of stone columns provides a new composite ground consisting of stiff stone column–soil matrix. Stone column reinforcement in the soft ground increases the bearing capacity and improves the settlement characteristics. They can be used to accelerate the rate of consolidation of soft soil deposits through a well-understood mechanism. They act as vertical drains that provide a shorter drainage path for excess pore water pressure to dissipate rapidly. In the present investigation, an attempt has been made to study the settlement characteristics of soft soil reinforced with the stone column. The main objective of the study was to investigate the settlement time behaviour of the stone column in very soft soil having undrained shear strength (cu) ≈ 5 kPa under different bearing pressures and to verify the results of the experimental results with the analytical theory on consolidation rate of composite ground. A compactive effort is applied during the construction of stone column, and its average value is equal to 21.98 kJ/m3. The settlement of the reinforced soft soil bed is reduced by 25.8% when reinforced with stone column diameter of 76.2 mm.
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References
Balaam, N.P., Booker, J.R.: Analysis of rigid rafts supported by granular piles. Int. J. Numer. Anal. Meth. Geomech. 5(4), 379–403 (1981)
Barksdale, R. D., Bachus, R. C.: Design and construction of stone columns. Report No. FHWA/RD-83/026, Federal Highway Administration, Washington, D.C. (1983)
Black, J., Sivakumar, V., Madhav, M., McCabe, B.: An improved experimental test set-up to study the performance of granular columns. Geotech. Test. J. 29(3), 1–7 (2006)
Bell, A.L.: The development and importance of construction technique in deep vibratory ground improvement. In; Ground and Soil Improvement. Thomas Telford, London (2004)
Charles, J.A., Watts, K.A.: Compressibility of soft clay reinforced with stone columns. In 8th European Conference Soil Mechanics and Foundation Engineering, pp. 347–352. Helsinki (1983)
Chandrawanshi, S., Kumar, R., Jain, P.K.: Settlement characteristics of soft clay reinforced with stone column: an experimental small scale study. Int. J. Civil Eng. Technol. 8(5), 937–948 (2017)
Chandrawanshi, S., Kumar, R., Jain, P.K.: Effect on settlement reduction due to method of construction of stone column: an experimental small scale study. Int. J. Civil Eng. Technol. 8(6), 99–108 (2017)
Cooper, M.R., Rose, A.N.: Stone column support for an embankment on deep alluvial soils. Proc. Inst. Civil Eng. Geotech. Eng. 137(1), 15–25 (1999)
Egan, D., Scott, W., McCabe, B.A.: Installation effects of vibro replacement stone columns in soft clay. In: 2nd International Workshop on the Geotechnics of Soft Soils, pp. 23–30. Glasgow (2008)
Han, J., Ye, S.L.: A theoretical solution for consolidation rates of stone column-reinforced foundations accounting for smear and well resistance effects. Int. J. Geomech. 2(2), 135–151 (2002)
IS: 1498: Classification and identification of soils for general engineering purposes. New Delhi, Indian Standards Institution (2007)
IS: 15284 Part 1: Indian standard code of practice for design and construction for ground improvement-guidelines. New Delhi, Indian Standards Institution (2003)
McCabe, B.A., Nimmons, G.J., Egan, D.: A review of field performance of stone columns in soft soils. Proc. Inst. Civil Eng. Geotech. Eng. 162(6), 323–334 (2009)
Mitchell, J.K., Huber, T.R.: Performance of a stone column foundation. J. Geotech. Geoenviron. Eng. 111(2), 205–223 (1985)
Murugesan, S., Rajagopal, K.: Studies on the behavior of single and group of geosynthetic encased stone columns. J. Geotech. Geoenviron. Eng. 136(1), 129–139 (2010)
Ranjan, G.: Ground treated with granular piles and its response under load. Indian Geotech. J. 19(1), 1–86 (1989)
Rangeard, D., Phan, P.T.P., Martinez, J., Lambert, S.: Mechanical behavior of fine-grained soil reinforced by sand columns: an experimental laboratory study. Geotech. Test. J. 39(4), 648–657 (2016)
Renton-Rose, D.G., Bunce, G.C., Finlay, D.W.: Vibro replacement for industrial plant on reclaimed land. Geotechnique 50(6), 727–737 (2000)
Shahu, J., Reddy, Y.: Clayey soil reinforced with stone column group: model tests and analyses. J. Geotech. Geoenviron. Eng. 137(12), 1265–1274 (2011)
Slocombe, B.C., Bell, A.L., Baez, J.I.: The densification of granular soils using vibro methods. Geotechnique 50(6), 715–725 (2000)
Watts, K.S., Johnson, D., Wood, L.A., Saadi, A.: An instrumented trial of vibro ground treatment supporting strip foundations in a variable fill. Geotechnique 50(6), 699–708 (2000)
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Chandrawanshi, S., Kumar, R. (2021). Settlement Behaviour of Very Soft Soil Reinforced with Stone Columns. In: Patel, S., Solanki, C.H., Reddy, K.R., Shukla, S.K. (eds) Proceedings of the Indian Geotechnical Conference 2019 . Lecture Notes in Civil Engineering, vol 136. Springer, Singapore. https://doi.org/10.1007/978-981-33-6444-8_31
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