Effect of wave hole effect on stability of riprap protective surface
WANG Kaikai
ZHENG Jianguo
LI Jie
TAO Wei
XU Guohui
Abstract：In coastal protection engineering,riprap is often used to protect the levee angle and wave side of sea dikes.Due to the existence of holes between riprap,the hole effect is easy to occur under wave action,which poses a threat to its stability.In this paper,the wave pressure tests under different wave conditions were carried out to study the three factors that affected the wave cavity effect such as the length of the wave cavity,the size of the wave cavity and the exhaust condition of the wave cavity.The test results showed that the impact force of the tail completely unsealed hole was less than that of the tail completely closed hole and much less than that of the tail exhaust hole.With the increase of hole length,the impact force on the tail of holes with different length increased first and then decreased.The impact force on the tail of holes of different sizes increased first and then decreased with the in-crease of hole size.The sensitivity of the impact force caused by the wave cavity effect to the hole length was greater than that to the hole size and the length or size of the hole with the maximum force between wave conditions.
Keywords：riprap slope dikewave pressurestabilityeffect of the hole
Publication Date：2025-04-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 9-16 )