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Assessment of the performance of raise boring 73 RM-DC at the Pongkor gold mine, West Java
| Content Provider | Scilit |
|---|---|
| Author | Kramadibrata, S. Rai, M. A. Darmawan, S. Arif, I. Sumanagara, D. A. Ardianto, A. Matsui, K. Shimada, H. |
| Copyright Year | 2018 |
| Description | A vertical shaft, so-called Ciurug Raise Boring II (CURB II), at the underground cut and fill Pongkor Gold Mine, West Java was developed for ventilation, waste pass, and ore pass purposes by means of a raise boring 73RM-DC. Assessment on the performance of the raise boring related to the geomechanical parameters of the rock mass being excavated is described. The geomechanical parameters of intact rock, such as, density, Brazilian tensile strength, unconfined compressive strength, and Young's Modulus were determined from core rock samples obtained from depths of 40 m, 70 m, and 100 m below the shaft collar. The machine performance parameters included, load per cutter, and reaming production. The raise boring performance was analysed using Rock Excavatability Index. This chapter describes the assessment of the performance of the raise boring related to the rock properties and machine parameters during the development of the vertical shaft at the Ciurug Raise Boring II (CURB II). A vertical shaft, so-called CURB II, at the underground cut and fill Pongkor Gold Mine, West Java was developed for ventilation, waste pass, and ore pass purposes by means of a raise boring 73RM-DC. The pilot hole of CURB II was apparently within category of accuracy below standard. Based on the pilot hole drilling data, a curve of relationship between deviation and hole depth was constructed. The use of raise boring machine for vertical shaft development at the Pongkor gold mine gives an alternative method against drilling and blasting. The cutting power model proposed is applicable for raise boring excavation within a range of intact rock and rock mass properties. Book Name: Mine Planning and Equipment Selection 2000 |
| Related Links | https://content.taylorfrancis.com/books/download?dac=C2004-0-28217-4&isbn=9780203747124&doi=10.1201/9780203747124-117&format=pdf |
| Ending Page | 623 |
| Page Count | 5 |
| Starting Page | 619 |
| DOI | 10.1201/9780203747124-117 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2018-05-08 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Mine Planning and Equipment Selection 2000 Mining and Mineral Processing Raise Boring Curb Ii Boring Ii Fill Pongkor Pass Purposes |
| Content Type | Text |
| Resource Type | Chapter |
