TY - CPAPER AU - Nicuta, Ana AU - Ilas, . Stud. Andrei AU - Barbuta, . Marinela AU - Lepadatu, Sen. Lect. . Daniel AU - Gaina, . st. Alexandra-Alisa TI - EVALUATION OF THE IMPROVEMENT FOR A DIFFICULT FOUNDATION SOIL USING VIBRATED BALLAST COLUMNS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 14th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING PY - 2014 DO - 10.5593/sgem2014/b12/s2.044 PB - Stef92 Technology ER -