Abstract
Earthqueke is one of the most frequent disaster in Indonesia, Earthqueke have caused losses both in terms of life and material. An earthquake also can trigger to soil liquefaction. Attention to liquefaction in Indonesia has raised after the Palu Earthquake in 2018. Liquefaction may happen in sandy soil in certain condition. Here, a series laboratory tests to study potentially liquefied in sandy soils is conducted. The liquefaction potential of sand are analyzed with the effect of the shape of the soil particles. The sandy sample is made up by special selected in three different shapes that are sharp, angular and round. Finally, it can be seen the effect of the shape of the soil grain on the liquefaction potential. The results of this study can be used to further investigation in order to mitigate the liquefaction.
Highlights
Earthquake disaster is one of the most frequent disasters in Indonesia that occurs in Indonesia which is located in prone to earthquakes which are traversed by the meeting of three tectonic plate paths, namely the Eurasian plate, the Australian Hindi plate, and the Pacific plate
Earthquakes can cause damage to the structure and loss of soil stability, soil damage caused by earthquakes, namely damage to the physical environment on the surface of the soil and damage to the buildings above it
The number of earthquakes that occur due to the geography of Indonesia is in a meeting of a number of large active tectonic plates where each plate movement has the potential to cause earthquakes
Summary
Earthquake disaster is one of the most frequent disasters in Indonesia that occurs in Indonesia which is located in prone to earthquakes which are traversed by the meeting of three tectonic plate paths, namely the Eurasian plate, the Australian Hindi plate, and the Pacific plate. The meeting point of this plate is in the sea so that large earthquakes with shallow depth can occur causing damage and loss both in terms of morale and material. Damage to the physical environment on the surface in the soil, for example slope balance (landslides and slope stability problems), land subsidence (sattlement), and liquefaction (liquefactions). In this case the author is interested in discussing the phenomenon of liquefaction. Laboratory liquefaction test of sand based on grain size and relative dansity (Hakam: 2016)[5]. During the testing the amplitude is recorded, besides monitoring changes that occur in soil samples that have the potential to cause liquefaction
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