5Abusharar S W, Han J. Two-dimensional deep-seated slope stabil- ity analysis of embankments over stone column-improved soft clay. Eng Geol, 2011, 120(1-4): 103.
6Gniel J, Bouasza A. Improvement of soft soils using geogrid en- cased stone columns. Geotext Geomembr, 2009, 27 (3) : 167.
7Gniel J, Bouazza A. Construction of geogrid encased stone col- umns:a new proposal based on laboratory testing. Geotext Geomem- br, 2010, 28(1) : 108.