Institusion
Universitas Pembangunan Nasional Veteran Yogyakarta
Author
PRAYOGA, AKHMAD
Subject
TA Engineering (General). Civil engineering (General)
Datestamp
2017-02-28 06:21:47
Abstract :
ABSTRACT
PT. Masindo Prima Resources is an andesite mining company which located in Watusampu village, Palu city. PT. Masindo Prima Resources have two locations of WIUP, both of them located nearby. The first location is Northern WIUP which is research area A and Southern WIUP which is research area B. In research area A mining activits are still running. In research area B mining activites will be starting after exploration activity done. Model of andesite rock from exploration activity is needed to make mine plan and design in research area B.
In this case, Vertival electric sounding method with Schlumberger configuration and Electrical Resistivity 2D with Dipole-dipole configuration are use to get data of andesitte rock. Resistivity and coordinates of data can be know by the methods. Furthermore, it can also support to distinguish material, so that a model of Andesit rock can be made.
From research with Vertical electric sounding method, the reseearch area A and B have a same condition, ther is founded andesite rock which have average grade of resistivity (500-800) Ohm.m and -2 m depth from the surface which have thickness 5-8 m. Moreover, it also founded andesite rock which have average grade of resistivity >800 Ohm.m and depth -30 m from the surface which have unknown thickness. In Electrical Resistivity 2D method , andesite rock known in upper layer which haven?t massive body and dominated with boulders. The Andesite have variation of depth between -2 m until ? 4 m from the surface and 7 m until 10 m in thickness.
Keywords : Resistiviy, andesite rock, modelling