1. Barksdale RD, Bachus RC (1983) Design and construction of stone columns. Report No. FHWA/RD-83/026, Office of Engineering and Highway Operations Research and Development, Federal Highway Administration, Washington
2. Greenwood DA (1970) Mechanical improvement of soils below ground surfaces. In: Proceedings of conference on ground engineering, Institute of Civil Engineers, London, pp 11–22
3. Vesic AS (1972) Expansion of cavities in infinite soil mass. J Soil Mech Found Div 98(SM3):265–290
4. Madhav MR, Vitkar PP (1978) Strip footing on weak clay stabilized with a granular trench or pile. Can Geotech J 15(4):605–609. https://doi.org/10.1139/t78-066
5. Aboshi H, Ichimoto E, Harada K, Emoki M (1979) The composer-a method to improve the characteristics of soft clays by inclusion of large diameter sand columns. In: Proceedings international conference on soil reinforcement, Paris, pp 211–216