Design and stability analysis of Ruban lock-type artificial reef
A prefabricated artificial reef connected with Ruban lock was designed in view of the large size and low transportation efficiency of the cast-in-place concrete artificial reef.The small size rod could be assembled into large empty space bodies by mortise and tenon,which could effectively save transporta-tion and delivery costs.The stability calculation was made according to the sea conditions of an artificial reef area near Rizhao,Shandong province.The results showed that under the joint action of waves and flow,the maximum force was 7.252 kN and the maximum moment of action was 8.702 kN·m.The anti-slip safety coefficient of the reef was 3.4 and the anti-overturning safety coefficient of the reef was 4.5,which met the reef stability conditions,and the reef would not slip and overturn in this area.This study provided an important reference value for designing prefabricated artificial reefs suitable for the environmental characteristics of China's offshore waters.
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