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ANALISIS DISTRIBUSI FRAGMENTASI PELEDAKAN BATU KAPUR TERHADAP PRODUKTIVITAS BACKHOE KOMATSU PC 300 DI PT SEMEN INDONESIA (PERSERO), TBK

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Penilaian

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PT Semen Indonesia (Persero), Tbk is one of the companies exploiting limestone resources in Indonesia. The mining method used is the open pit method. The main mining activities consist of overburden removal, blasting, loading, transportation from the mining site to the processing crushing plant, and transportation to the shipping site. The blasting process is one of the processes used to dismantle to reduce the size of the material involved in the production of minerals. The current situation in the field shows that the blasting fragmentation is still a lot oversized, namely the blasting fragmentation of ≥ 60 cm is estimated to be above 15%, which exceeds the company standard. With this large amount will have an impact on the excavation process carried out by the Komatsu PC 300 backhoe with a Bucket Capacity of 1.8 m3, the Komatsu PC 300 backhoe will experience difficulties in the excavation process which affects productivity and accelerates tool damage. The results of the analysis that have been carried out show that based on the seven research locations that have been determined, namely blocks GG-17, EE-16, DD 17/18 for soft strength rock and blocks W-14, Y-12, Q-12, W-12 for Rock hard strength rock, shows the percentage of blasting fragmentation for limestone size ≤60 cm of 83,283% while for limestone ≥ 60 cm has a percentage of 16,717%. These results indicate that the resulting blasting fragmentation has exceeded the percentage set by the company which indicates that the blasting implementation is still less than optimal, so that it can affect productivity and interfere with further blasting activities due to the material remaining at the blasting location.

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Availability

Inventory Code	Barcode	Call Number	Location	Status
2107002830	T55096	T550962021	Central Library (REFERENCES)	Available but not for loan - Not for Loan

Detail Information

Series Title

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Call Number

T550962021

Publisher

Inderalaya : Prodi Teknik Pertambangan, Fakultas Teknik Universitas Sriwijaya., 2021

Collation

xiv, 74 hlm,: tab,: ilus,: 29 cm

Language

Indonesia

ISBN/ISSN

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Classification

624.107

Content Type

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Media Type

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Carrier Type

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Edition

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Subject(s)

Prodi Teknik Pertambangan
Teknik Struktural dan Konstruksi Bawah Tanah

Specific Detail Info

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Statement of Responsibility

SEPTA

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