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ANALISIS PENGARUH DAYA DUKUNG TANAH TERHADAP PEMILIHAN ALAT MEKANIS PADA PENAMBANGAN BATUBARA DI AREA ALAM 8-9 PT MUARA ALAM SEJAHTERA

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Penilaian

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The selection of mechanical equipment in coal mining operations is heavily influenced by geotechnical conditions, particularly the soil bearing capacity. This capacity must be calculated and compared with the ground pressure exerted by the mechanical equipment. To avoid ground failure or subsidence, the ground pressure must be lower than the soil’s bearing capacity. Soil compaction was assessed using the California Bearing Ratio (CBR) test with a Dynamic Cone Penetrometer (DCP). The resulting CBR values and corresponding soil bearing capacities for Segment 1 (Pit Road between Pit Alam 8–9), Segment 2 (Disposal Area), and Segment 3 (Original Ground) were 26.57%, 8.48%, and 6.43%, with respective soil bearing capacities of 7.61 kg/cm², 5.26 kg/cm², and 5.13 kg/cm². Ground pressure values for the mechanical equipment are as follows: Excavators: Hitachi ZX870H-5G (1.08 kg/cm²), Hitachi ZX200-5G (0.40 kg/cm²), SDLG E6360F (0.66 kg/cm²), SDLG LG6210E (0.41 kg/cm²), and Hitachi ZX350H-5G (0.59 kg/cm²). Bulldozers: Komatsu D375A-5 (1.46 kg/cm²) and Komatsu D375A-6R (1.48 kg/cm²). Haul Trucks: HD CMT 106 (6.54 kg/cm²), HD CMT 96 (6.01 kg/cm²), and Dongfeng DFH3310A12 (3.22 kg/cm²). Based on this data, all equipment is suitable for use in Segment 1. However, in Segments 2 and 3, it is not recommended to operate HD CMT 106 and HD CMT 96 due to the risk of ground failure. If the company intends to deploy these haul trucks in Segment 2 (Disposal Area) and Segment 3 (Original Ground), road reinforcement or improvement in those areas is advised to ensure operational safety and ground stability.

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Availability

Inventory Code	Barcode	Call Number	Location	Status
2507006273	T185749	T1857492025	Central Library (Reference)	Available but not for loan - Not for Loan

Detail Information

Series Title

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Call Number

T1857492025

Publisher

Indralaya : Prodi Teknik Pertambangan, Jurusan Pertambangan dan Geologi Fakultas Teknik Universitas Sriwijaya., 2025

Collation

xv, 112 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

622.307

Content Type

Text

Media Type

unmediated

Carrier Type

other (computer)

Edition

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Subject(s)

Pertambangan batubara
Prodi Pertambangan dan Geologi

Specific Detail Info

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Statement of Responsibility

MI

Other version/related

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