Abstract
As a consequence of the action of waves on rubble mound breakwaters, there are loads—both on the vertical and horizontal sides of the crown walls—which modify the conditions of their stability. These loads provoke dynamic impulses that generate movements that are not possible to be analyzed by static calculation. This study presents the results obtained using a simplified method of dynamic calculation of the crown walls, presented in Appendix A, based on the variation of the forces acting against the structure in the time domain and the soil characteristics. It provides results of the expected movements of the structure and the deformations produced in the foundation. With this, traditional static calculation is improved and knowledge about the phenomenon is enhanced, highlighting the uncertainties in the system.
Highlights
There have been used in the calculations two smaller ones because, as the maximum forces and moments were maintained in all shapes of loading state, the use of a larger tip factor should produce a faster decrease in the total movement of the crown walls
This study presents a simplified model for the dynamic calculation of breakwater crown walls, providing results of the relative movements expected based on hydrodynamic forces and soil characteristics
The proposed simplified model gives a first estimation of crown wall stability, comparing the displacement and rotation for certain designs, regardless of their structural stability, and whether they are compatible with the defined operating conditions
Summary
Water 2019, 11, 1149 is done in order to eliminate some instantaneous data records that, if we considered them, would generate excessively large structures. For this reason, is convenient to improve the knowledge of the performance of the crown wall and its movements in the time domain by proposing the dynamic calculation of the structure, in cases where impulsive pressures are present [5] and considering the variation of the conditions of the core. The entire data can be used, even those data that produce instantaneous forces over the static equilibrium conditions, which could generate permissible movements of the crown wall by port operations and that do not produce the failure of the structure. A total of 752 simulations were carried out varying the parameters involved (Young’s modulus and soil model)
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