When would you consider accropodes to armour a rubble mound breakwater?

Answer 1

Accopodes are preferred when:

i) armour stone quarrying is difficult to get bigger stones weighing more than 12t involving loading,at quarry site, transportation, unloading at project site for stacking all using heavy duty crane and then again transporting for placement abd placing whereas this simplified to mere casting at site and transportation to site for placement

ii) Bye products of lesser stones will be over 50%

iii) Design wave height(Hs) is more 3m/10 to 12 sec

iv) For larger wave heights this is cheaper construction but you have to pay royalty to Sogreah still.

v) Better interlocking property in accropode

vi) You can have steeper slope beter than rubblemound meaning lesser quantity

vii) Once placed it is stable by and large and no replacement

viii) Better stabity and damage coeffcients for use Hudsons or Van der Meer formula

ix) Single layer -fairly easy for construction

x) Accropode II is still better-lesser concrete quantity an more friction capacity and good capacity to withstand worst wave climate

xi) For lesser depths and reasonably moderate climates rubblemound is still better bcz placement does not require high skills where as it in accropodes this is must and sogreah will sit on your neck on the quality and interlocking necessity

There are many more-i would stop here -i ahave an appointmeny

k.dharmalingam

port planning consultant

Chennai, Tamailnadu India