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  • Analysis of Underground Block Caving Mining Induced Surface Movement in Papua, Indonesia

Analysis of Underground Block Caving Mining Induced Surface Movement in Papua, Indonesia

  • Artikel, Penelitian
  • 13 December 2018, 01.58
  • Oleh: agung_setianto
  • 0

by : Agung SETIANTO+, Tetsuro ESAKI*, Yasuhiro MITANI**,
Ibrahim DJAMALUDDIN*** and Hiro IKEMI****
(Received May 8, 2009)
Abstract
The occurrence of the surface movement is the main focus of the
study regarding to the gold & copper underground block caving mining
in Papua, Indonesia. The underground mining has brought some
environmental problems on the terrain surface such as the lowering of
the elevation followed by growing of the waste pile as the result from
the failure of the rock slope.
In this study, the surface movements due to the underground mining
were analyzed by using the aerial photogrammetry method and the
Geographic Information System (GIS) technology. The detected surface
subsidence ranging from 1.5 to 2 meter and the development of the
sedimentation area has been identified in which the maximum deposit
thickness is about 2 meter. In addition, the correlations between
extraction thicknesses over the overburden versus ground movement
have been studied in order to find out the influence of some geological
conditions in the development of the surface changing.
The surface movement induced by underground mining causes some
serious environmental impact not only above the extraction zones but
also the surrounding areas. Some environmental impacts due to the
surface movement are reviewed and discussed in this paper in order to
describe the current situation of the underground mining in Papua,
Indonesia

+ Doctoral Student, Department of Civil and Structural Engineering
* Professor, Department of Civil and Structural Engineering
** Associate Professor, Department of Civil and Structural Engineering
*** Post-doctoral Fellow, Department of Civil and Structural Engineering
**** Assistant Professor, Department of Civil and Structural Engineering

 

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Tags: Aerial photogrammetry Block caving Environmental impacts GIS Subsidence
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