3Prakash,Chandra.Uplift resistance of underreamed piles in silty sand. Indian Geotechnical Journal . 1980
4Nagata,Makoto,Hirata,Hisashi.Study on uplift resistance of screwed steel pile. Nippon Steel Technical Report . 2005
5CHANG Dave Ta-the,WU Jason Y,NIEH Yu-chen.Use of geosynthetics in the uplift pressure relief system for a raft foundation. Journal of Engineering and Applied Science . 1996