Studi Pekerjaan Survei Batimetri (Studi Kasus Area Jetty pada PLTU)

Abstract

In order to avoid silting due to sediment which can disrupt ship traffic passing through shipping lanes, dredging is necessary. The dredging work in the Jetty Area of the PLTU (Steam Power Plant) was carried out to increase the depth of the Jetty Area in accordance with the ship's draft and the needs of the PLTU. Data regarding seabed depth information (bathymetry) is the basic data used in planning dredging work. Given this problem, bathymetric survey work will be carried out to determine the bathymetric conditions of the waters as a basis for determining the depth of the dredging volume. This research began in the even semester of the 2022/2023 academic year and was carried out at the Pangkalan Susu PLTU, Langkat Regency. The data collected in this research is primary data in the form of tidal data using the Admiralty method and bathymetric data using Hypack software as well as secondary data in the form of PUSHIDROSAL (TNI Navy Hydrographic and Oceanographic Center) and Indonesian National Standard (SNI) 7646:2010 Hydrographic Survey using Singlebeam Echosounder. From the research, it is known that the tidal type in the waters of the PLTU Jetty Area is a mixed double slope, with a Formzahl (F) value of 0.36, MHWS (Mean High Water Spring) of 2,909 m, and MSL (Mean Sea Level) of 3,624 m, the barge has a draft of 3.24 m with a DUKC (Dynamic Under Keel Clearance) value of 4.08 m, so the results of the research analysis were obtained using Hypack software and a bathymetric survey in the form of a bathymetric map.