Dewasa ini konsumsi energi di indonesia lebih di dominasi oleh bahan bakar minyak sedangkan cadangan batubara sangat berlimpah,namun cadangan minyak dimasa mendatang akan berkurang,sehingga batubara merupakan energi alternatif untuk menggantikan bahan bakar minyak.
Kebutuhan energi dunia dari tahun ke tahun meningkat terus dan sampai saat ini minyak bumi merupakan sumber energi utama dibeberapa negara,sedangkan batubara yang cadangannya cukup berlimpah merupakan sumber energi kedua yang banyak dipergunakan.
This addendum report containes three part all relating to mine design consideration .thet have been prepared to document results of evaluations undertaken to support the choice fo an optimum mining plan ,supported by an adequate reserve base.
Within the framework of mining and energy policy of the indonesia geverenment ,coal productin in indonesia will be increased sharply and for this purpose the gevernment has formulated and implemented an extensive coal program.the most important users of coal will be steam power generating plants which will take 70-80% of the domestic demand ,scondly…
This section presents laboratory test result and descibes the test procedures used for measuring the physical or mechanical properties of rocks encountered in the coal measure of the ombilin basin.these tests provide the mechanical properties data required for the evaluation of rock structure and other rock mechanics variables required for mine plan…
The stratigraphy and paleontology of the Cenozoic deposits developed in the Joban coal-field, northeast Ibaragi and southeast Fukushima Prefectures, have already been studied by many authors. Since C. KOCHIBE (1883) reported on the occurrence of fossil molluscs from the rocks building the upper…
This paper is an attempt to synthesize the occurrences of Tertiary coal deposits in relation to the Tertiary sedimentary l;asin development, es~cially in its stratigraphic position. Rodern 1:asin classifications bJ Klemme (l!!'l2) and Murphy (l!!'l5) are revie~ for Indonesiao Tectonic framew:,rk of Tertiary sedimentary 1:asins bl] Koesoemadin…
The reconnaissance area is underlain by rocks ranging from Mesozoic to Neogene age. The structure is relatively simp'le over most of the area and comprises a broad southward plunging anticlinorium of sediments with a' basement core of Mesozoic metamorphics and igneous rocks. The regional dips off the flanks of the anticlinorium are generally regul…
Coalbedmethane is increasingly playing a major role as a gas resource in the United States, Presently, about eight percent of the total annual natural gas produced in the United States is coalbed methane (fig. I). Coalbed methane was originally thought to be economicallyproduced only from high-rank coal. However,with the advent of economic coalbed …
Stations are being built to satisfy the growing demand for energy. This edition of the snow is biggest post economic crisis with all four shows experiencing strong growth: "this year's Energy and Mining ndonesia Series has attracted 1.566 companies including 10 National groups from Australia, Canada, China, Czech, Germany, Italy, Korea, Poland, Sin…