1. Recommendation for design and construction practice of earth retaining for excavation;Architectural Institute of Japan,1988
2. Lime columns-A new type of vertical drain;Broms;Proc. 9th ICSMFE,1977
3. Stress calculation of earth-retaining structures during construction;Nakamura;Soils and Foundations,1972
4. Deep-limemixing method of stabilization for marine clays;Okumura,1975
5. Deep excavations and tunneling in soft ground;Peck,1969