construction of wave breaker at glagah beach in kulon progo yogyakarta using heavy machinery and tetrapods

infrastructure environmental construction geotechnical preservation engineering sustainable dissipation yogyakarta positioned protection management assessment morphology mitigation ecosystems breakwater structures machinery tetrapods including excavator shoreline hydraulic stability solutions tetrapod concrete sediment dynamics analysis breaker depicts terrain coastal erosion control glagah active marine impact energy beach kulon progo heavy rocky ocean waves storm surge wave site zone