Many coastal structures have to be designed to withstand the high impulsive forces created by breaking waves. These wave impact pressures consist of a very short but high pressure peak, followed by a longer lasting but much smaller hydrodynamic pressure. The experiences with blockwork structures led to the suspicion that impact pressure can propagate into water filled cracks of such structures, creating high splitting pressures in these cracks and thus destroying the structures from within. At Queen's University Belfast, an experimetnal program was developed in order to assess this problem. It was shown that wave impact generated pressures can enter into and propagate in water filled cracks, confirming the possibility of the suspected damage mechanism. A research network (BloCSnet), comprising the Universities of Belfast, East Anglia, Edinburgh, Sheffield and ROme III was formed to investigate theoretical and practical aspects of wave impact pressure propagation into cracks.
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机译：必须设计许多沿海结构，以承受由海浪产生的高冲击力。这些波浪冲击压力包括一个非常短但很高的压力峰值，然后是一个持续时间较长但流体动力压力要小得多的压力。砌块结构的经验导致人们怀疑冲击压力会传播到此类结构的充满水的裂缝中，从而在这些裂缝中产生较高的分裂压力，从而从内部破坏该结构。贝尔法斯特女王大学（Queen's University Belfast）开发了一个实验程序，以评估此问题。结果表明，波浪冲击产生的压力可以进入并在充满水的裂缝中传播，从而证实了可能的破坏机理。建立了一个由贝尔法斯特，东英吉利，爱丁堡，谢菲尔德和ROme III大学组成的研究网络（BloCSnet），以研究波浪冲击压力传播到裂缝中的理论和实践方面。
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