A method of protecting breakwaters, dikes, river banks, canals and the like against the destructive action of waves, currents and ice floes

摘要

886,611. Protecting breakwaters and river banks. BULGARIA, MINISTER OF MINISTERSTVO NA TRANSPORTA I SAOBSCHTENIATA. Aug. 16, 1960, No. 28422/60. Class 68(2). A protective covering for reinforcing and safeguarding breakwaters, dikes, river and canal banks and the like comprises marginal, intermediate, and end units or slabs A, B and C respectively joined one to another by interengaging arms shaped (as shown for unit B in Fig. 6) on their inside surfaces in the form of eccentrically-tangential semi-cylinders l (of radius r).