Lime/cement deep mixing method

Lime/cement mixing method has been used to improve the properties of soils since olden times. Deep stabilization of soft soils with lime and/or cement stabilized columns has been the subject of research in Sweden, Japan, and other countries for a very long period. The Swedish Geotechnical Institute together with Linden-Alimak AB and Professor Bengt Broms have done extensive work on the usage of lime column technique for foundations and earthworks both for embankments and excavations in soft clays. Modern application of this method for deep mixing of in-situ soils started in the late 1970’s in Japan ( Terashi et al. 1979 , Kawasaki et al. 1981 , Suzuki 1982). The deep mixing method (DMM) originally was developed to improve the soft ground for port and harbor structures. DMM is now applied to foundations of structures built on land such as embankments, buildings, and storage tanks. Some applications of lime/cement columns are illustrated in Figure 4.1 .