2Spangler M G, Handy R L. Soil engineering[M]. Harp- er & Row, 1982.
3Naughton P J. The significance of critical height in the design of piled embankments[J]. Part of Geo-Den- ver, 2007:13-23.
4Hewlett W J, Randolph M F. Analysis of piled em- bankments [C]//International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts. Elsevi- er Science, 1988, 25(6): 297-298.
5Russell D, Naughton P J, Kempton G. A new design procedure for piled embankments[C]// Proceedings of the 56th Canadian Geotecbnical Conference and 2003 NAGS Conference. 2003: 888-865.