wave breaker construction at glagah beach in kulon progo yogyakarta with heavy machinery and tetrapod structures

infrastructure environmental construction preservation geotechnical hydrodynamic engineering dissipation attenuation sustainable yogyakarta structures excavators breakwater protection management refraction ecosystems assessment morphology mitigation machinery including hydraulic stability shoreline solutions materials tetrapod captures enormous concrete sediment maritime analysis dynamics modeling breaker coastal shaping erosion control glagah energy design marine impact forces beach kulon progo heavy tidal storm surge wave