Rock
catalog of
natural
coastal protection
units
Rock |
catalog of
natural |
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| link to
projects in the International Breakwater Directory |
Commercial information:
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![{\displaystyle {\frac {H_{s}}{\Delta \cdot d_{n50}}}={\begin{cases}c_{p}P^{0.18}\left({\frac {S}{\sqrt {N}}}\right)^{0.2}\xi _{m}^{-0.5}&{\mbox{als }}\xi _{m}<\xi {cr}\quad [plunging]\\c_{s}P^{-0.13}\left({\frac {S}{\sqrt {N}}}\right)^{0.2}\xi _{m}^{P}{\sqrt {cot\alpha }}&{\mbox{als }}\xi _{m}\geq \xi {cr}\quad [surging]\end{cases}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/79fed775ad98b1281f4bb3f3f4cbb6366ee9e395)
![{\displaystyle \xi _{cr}=\left[{\frac {c_{p}}{c_{s}}}P^{0.31}{\sqrt {tan\alpha }}\right]^{\frac {1}{P+0.5}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/c75cc79194be25af7bb7f1166e9850b36e016543)
wikipedia pages