柔性基础下复合地基理论在某事故处理中的应用 - 中南大学学报.pdf

42 3 () Vol.42 No.3 2011 3 Journal of Central South University (Science and Technology) Mar. 2011 1, 2 1 1 (1. 310058 2. 430080) 3 TU 47 A 1672−7207(2011)03−0772−08 Application of theory of composite ground on flexible foundation to retreatment of a foundation accident 1, 2 1 1 LÜ Wen-zhi , YU Jian-lin , GONG Xiao-nan (1. Ministry of Education Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China; 2. Wuhan Surveying-Geotechnical Research Institute Co., Ltd, China Metallurgical Group Corporation, Wuhan 430080, China) Abstract: To solve the problem that a semi-ellipsoidal shaped surface subsidence appeared locally in a raw material yard in a steel plant, the comparative calculation of the bearing capacity of the original composite foundation was proceeded based on a rigid foundation and flexible foundation respectively. According to the load transfer law, the causes of the accident were analyzed. Accordingly, three comprehensive measures, i.e., the semi-rigid cushion, long-short-pile composite ground and compound retaining wall, were adopted in the