DECK ON PILE JETTY ANALYSIS ON LIQUEFIABLE SOILS STEAM-ELECTRIC POWER PLANT LOMBOK CASE STUDY

• Main Author: ANGGIE ANGGRIANY (NIM : 25514301), CITRA
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/26292
• Institution: Institut Teknologi Bandung

Deck on pile jetty systems is another typical of port structure that using a pile as a support <br /> <br /> of the main structural elements, the main role of pile is not only as a main structure <br /> <br /> support but also as a loads distributor to the soil. <br /> <br /> Besides the strength analysis of main port structure, a further analysis of soil resistance <br /> <br /> are also important. If the soil characteristic are dominant with a typical of sand, a <br /> <br /> reviewed of liquefaction potential analysis has to be considered. Liquefaction in soil <br /> <br /> means a phenomenon that occurs in non-cohesion soil for example sand, it struggled from <br /> <br /> a natural shocks like an earthquake which generate the water inside the soil pores to raise <br /> <br /> and create a loss of connections between soil particles, these leads to a shrinkage in soil <br /> <br /> capacity. <br /> <br /> This research intended to analyze the existing port structure due to the detection of <br /> <br /> potential soil liquefactions. The initial analysis is to figure out the liquefaction potentials <br /> <br /> in every layers of soil in order to discover which layer had experienced the liquefactions. <br /> <br /> The analysis will proceed by calculating the interaction between the soil and structure <br /> <br /> that will be presented in p-y curve, t-z curve, and Q-z curve. These curves represents the <br /> <br /> behavior of soil capacity. The p-y curve will be reviewed in 2 conditions which are the <br /> <br /> p-y curve on regular sand soil that has not experienced a liquefaction and p-y curves on <br /> <br /> the liquefied sand soil. <br /> <br /> A finite element software SAP2000 were used to create a structure analysis, every loads <br /> <br /> data obtained from the field survey will be used as inputs for structure model in order to <br /> <br /> visualize the structure behavior as close as the conditions in reality. There are two <br /> <br /> conditions in structure analysis, the first conditions is a normal condition or no <br /> <br /> liquefaction, and the second is the condition of earthquake (after-shock) or liquefaction <br /> <br /> condition in the soil of foundation. <br /> <br /> Every reviewed parameters creates an analysis results for each two structure conditions. <br /> <br /> For the first structure condition which does not experienced with a liquefactions, the <br /> <br /> structure model in the analysis has a structure durability and soil stability against the <br /> <br /> loads. However, in the second analysis where liquefactions had occured, the structure and <br /> <br /> soil failure on some parameters.