Simulation Analysis Of Ship Locks With Double-hinged Soleplate And Asymmetric Lock Wall

Ship lock with double-hinged soleplate, which is developed based on the integral ship lock, is widely applied on silt-sandy foundation and fine-sandy foundation. For double-hinged soleplate type the calculation method of Ship lock structure home and abroad have performed some research, especially in the bottom of stress analysis which have put forward the calculation graphic expressions, calculation method.For the moment, the double-hinged soleplate of stress analysis method is mainly aiming at the condition of the symmetry lock wall structure, for asymmetric lock wall of double-hinged soleplate of stress analysis are lacking. Therefore, the asymmetric lock wall of double-hinged soleplate of structures on internal force analysis and research, using reasonable analysis method to calculate, which is a important significance for the structure optimization design and guarantee the safety, stability of ship lock structures and so on.This paper uses the plane simplified calculation method and ANSYS nonplanar and finite element simulation calculation method to calculate the internal force of lock chamber structure.Mainly contents as following:1、Through the reading massive literature material, grasp of ship lock structures at home and abroad of research and development present situation and double-hinged soleplate lock chamber structure characteristics and on the double-hinged soleplate lock chamber the advantages and disadvantages of existing calculation method are reviewed.2、According to the similar project, through comparing and analyzing respectively the simplified method, the finite element method to calculate the results and the in situ observation data, we can find that:Simplified calculation method has the advantages of simple and convenient, but it also has limitations in internal force calculation for wallboard, ascertain the location and size of stress concentration. Compared with the actual value parts of the structure stress calculation result have large deviation. So simplified method that is hard to meet the requirements of what ship lock with double-hinged soleplate.3、Compared with simplified method, the finite element method and the results obtained the prototype observation data more close, and find out the most dangerous position inside the structure and its stress value easier, the method can reflect the lock chamber structure stress state more truly. 4、The three dimensions nonlinear finite element calculation shows that,both sides of the wallboard have distortion trend to outside in the completed construction chamber operation condition、maintenance working of chamber operation condition and the special working of chamber operation condition, and the deformation of the differences between the maximum of top of wallboard in X, Y direction are operation condition and completed construction; The contact state are changed in different contact areas between disparate calculation conditions, for example one contact area appear larger sliding surface that is floor and bedrock interface in running low water conditions.5、Through contrastive analysis the conditions, the maximum of compressive stress and equivalent stress in chamber happened in the wall and bottom gate lap of the hinge inferior, and the maximum of compressive stress present to completed construction, the operation and special conditions are smaller, the maintenance condition is least; The foundation to the floor showing the both sides big small U fonts among curve distribution approximately, and the maximum in completed construction, the minimum in operation condition, and Maximum appear in the same position that is hinged on both sides. So in the completed construction, the chamber hinged slab structure and foundation position most easily to Produce yield damage.