Liquefaction Analysis on the Runway and Parallel Taxiway at Sentani Jayapura Airport
Bambang Widodo (a*), Vemi Widoanindyawati (b), Brenanto Tsaqofa Widodo (c)

(a) Universitas 17 Agustus 1945 Semarang
Jalan Pawiyatan Luhur, Bendan Dhuwur Kecamatan Gajahmungkur, Semarang, 50234
*bambang-widodoft[at]untagsmg.ac.id
(b) Politeknik Negeri Semarang
(c) Universitas Gadjahmada Yogyakarta

Abstract

Infrastructure development with a relatively large project value and a building that functions is very important, so planning needs to be reviewed from various aspects. One of the most important aspects is the geotechnical aspect. Part of the geotechnical aspect is safety against liquefaction hazards. Liquefaction is a natural event that depends on the location of the building in relation to the earthquake zone, the topography around the building, and the type of soil layer that supports the building. The case study conducted by the liquefaction study in this study was the work of detailed engineering design (RTT) work on the fulfillment of airport side facility standards at Sentani Jayapura airport. An analysis of the liquefaction hazard was carried out to determine the cost of treating the subgrade that supports the runway and parallel taxiway structures. The methodology used is to use soil test data that has been carried out, namely machine drills totaling 22 points (21 points at 15 meters deep and 1 point at 30 m depth), and Sonder (CPT) test data at 19 points. Plotting the research location zone against earthquake maps, topographical data, and information on the surrounding geological conditions. Liquefaction analysis used several references. The results of the study show that at the locations where the parallels and taxiways are built, relatively no liquefaction occurs, so no treatment costs are required.

Keywords: Liquifaction, Building location, Cost.

Topic: Interdisciplinary Geosciences