ANALYSIS OF THE EFFECT OF UPPER FACE ON WEDGE BLOCK STABILITY IN ANDESITE QUARRY MINING SITE SOMOREJO , CV. MOUNTAIN MULIA, SOMOREJO VILLAGE, BAGELEN DISTRICT, PURWOREJO REGENCY, CENTRAL JAVA PROVINCE

ANALISIS PENGARUH KEMIRINGAN UPPER FACE TERHADAP KESTABILAN BLOK BAJI DI KUARI PENAMBANGAN ANDESIT SITE SOMOREJO, CV. GUNUNG MULIA, DESA SOMOREJO, KECAMATAN BAGELEN, KABUPATEN PURWOREJO, PROVINSI JAWA TENGAH

https://doi.org/10.56139/intan.v5i2.153

Authors

Keywords:

slope stability, surface mining, quary, upper face, wedge blocks

Abstract

CV. Gunung Mulia is a business entity engaged in the andesite mining industry. The mining area uses an open mining system (surface mining) with the quarry mining method. There were many landslides in the research location. After performing a kinematic analysis using the stereographic method, two discontinuity areas were found in the form of major and minor joints that form wedge blocks on the mining slope. In analyzing the stability of the wedge block, one of the important parameters required is the orientation of the upper face. The method used is limit equilibrum wedge method. Based on the research result, it was found that the orientation of the angle of the slope greatly affects the value of the factor of safety. The gentler the angle of the slope, the higher the safety factor. As a recommendation, it is hoped that the upper face angle will be leveled again so that it can increase the FK value, which is at least 7° with an FK value of 5.93

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References

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Published

2022-11-30 — Updated on 2022-11-30

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How to Cite

Rezkie, H., & Saptono, S. (2022). ANALYSIS OF THE EFFECT OF UPPER FACE ON WEDGE BLOCK STABILITY IN ANDESITE QUARRY MINING SITE SOMOREJO , CV. MOUNTAIN MULIA, SOMOREJO VILLAGE, BAGELEN DISTRICT, PURWOREJO REGENCY, CENTRAL JAVA PROVINCE: ANALISIS PENGARUH KEMIRINGAN UPPER FACE TERHADAP KESTABILAN BLOK BAJI DI KUARI PENAMBANGAN ANDESIT SITE SOMOREJO, CV. GUNUNG MULIA, DESA SOMOREJO, KECAMATAN BAGELEN, KABUPATEN PURWOREJO, PROVINSI JAWA TENGAH. INTAN Jurnal Penelitian Tambang, 5(2), 75–80. https://doi.org/10.56139/intan.v5i2.153