STUDY OF FINITE ELEMENT AS A RESULT OF INSTRUMENTED LATERAL LOADING TEST FOR DETERMINING INTEGRITY REDUCTION FACTOR IN DESIGN SHEET PILE

• Main Author: Dwi Nafisah - NIM: 15014119 , Anggit
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/25601
• Institution: Institut Teknologi Bandung

<p align="justify">The necessity of sheet pile as earth retaining structure is increasing along with the incremental of infrastructure project such as port, sea water intake, basements of high rise building, and MRT-subway train. Sheet pile could be used both as a permanent structure and temporary structure. In the process of designing sheet pile, it is required to use integrity reduction factor or IRF towards stiffness and moment of inertia which is result of slip in connection between one segment to another. Meanwhile, in practice the use of integrity reduction factor has not been used optimally. Within this research, the value of IRF due to the result of instrumented lateral loading test using analysis of finite element method on sheet pile U type and HAT type would be recommended. Analysis is supported by result of field test in the form of lateral load to deformation graphs. Those graphs will be used as a reference for the result of analysis using finite element method. Finite element analysis will be modeled using Mohr-Coulomb and Hardening Soil on software PLAXIS 2D. Parametric study are conducted as well for improving the result. Based on research, model that performed better is model using HS since the process of loading is appropriate model by using difference value of soil stiffness for each type of loading. The value of IRF for U type sheet pile is 0.6-0.67 while the value of IRF for HAT type sheet pile is 1. The IRF is 1 for HAT type means there is no need to reduce the capacity or stiffness of the pile. This case also indicate that slip does not occur in HAT type sheet pile. Long term response gives a bigger deformation on same ultimate lateral load. This case indicate that critical condition develops in drained analysis. <p align="justify"> <br />