Title :
Prediction of deformation and back-analysis m value on deep pit construction
Author :
Wang Qiang ; Liu Song-yu ; Tong Li-yuan ; Li Ren-min ; Fang Lei
Author_Institution :
Inst. of Geotechnical Eng., Southeast Univ., Nanjing, China
Abstract :
Based on the elastic foundation beam method, m values for deep excavation were back-analyzed by using a constrained no-linear optimization method in MATLAB. The horizontal displacement of diaphragm wall during excavating was used in back-analysis procedure. The case studies in Suzhou subway showed that the presented method is simple and feasible. The m values obtained can reflect the actual situation and predict displacement of next working stage accurately.
Keywords :
beams (structures); elastic deformation; foundations; geotechnical engineering; nonlinear programming; railways; structural engineering; tunnels; Matlab; Suzhou subway; back analysis method; deep excavation; deep pit construction; deformation prediction; diaphragm wall horizontal displacement; elastic foundation beam method; nonlinear optimization method; Buildings; MATLAB; Manganese; Roads; Rocks; Soil; Structural beams; Back-analysis of m value; constrained non-linear; deformation prediction; elastic foundation beam method;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5775352
