A Modified Elastic Foundation Beam Method for Analyzing Lateral Wall Deformation in Excavations with Cross Wall

Cross walls have been used as alternative auxiliary measures to protect buildings in some areas of Asia. Realizing the inadequacy classical Winkler foundation predict deflection diaphragm wall with cross wall, a modified finite element method (MEFB) was formulated this paper. Then, MEFB verified through two excavation cases and applied new well-documented history. Results showed that by proposed line 3D numerical analysis field observations but smaller than Winkler’s elastic (EFB) method. The maximum deformation calculated predicted reduction 40∼60% compared those EFB Meanwhile, minimum at location reaches value midline between walls. Besides, plane strain ratio PSR d based on defined study interval id="M2"> L , embedded depth, arrangement results indicated successfully more accurate is simpler for engineering design diaphragm-cross system during excavation.