NUMERICAL ANALYSIS OF STABILITY OF RUNWAY PAVEMENT EMBANKMENT IN LIQUEFACTION SOIL

• Main Author: MARIANO WILLIAM , KEVIN
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/28435
• Institution: Institut Teknologi Bandung

<p align="justify">In the planning of pavement pavement the runway of course requires careful planning, unlike ordinary pavement, this is because if the runway is not resistant to dynamic loads or static loads it will cause failure and can cause fatal accidents due to the pavement failed, while one of the consequences caused by dynamic load on sand saturated soil is liquefaction where the ground water pore pressure rises to equal to the vertical effective stress soil so that soil strength = 0. The stability analysis of embankment is done numerically by using FLAC 2D finite difference software and soil improvement in this study using stone column <br /> <br /> Based on the results of the analysis conducted, the land was experiencing liquefaction and cause pavement pavement runway failure. Then do the improvement of soil using stone column so that potentially liquefaction ground is more resistant to dynamic load, while the purpose of soil improvement using stone column as follows with increasing the diameter of Stone Column, then the path seepage will be smaller so that pore pressure will be faster and Stone Column greater stiffness of the composite soil as a whole will be more enlarged so that seismic shear strain caused by the earthquake is smaller so that the increase in pore pressure is getting smaller. In this study the results show where by using stone column diameter 1.25m yield resistance of soil to dynamic load better when compared with diameter 0,8m and 1,0m or ratio between increase of pore water and vertical effective stress not reach 1 (not liquefied) .<p align="justify">