Abstract
1. BACKGROUND

During the last 15 years, the Toquepala pit has grown. Pit slopes are currently on the order of 700 m high, and the next phase of mine development (Phase 5) will increase the slope height to approximately 950 m. Given this significant increase in slope height, and anticipated changes to the competency of the rock mass with increasing depth, it was considered prudent to update the rock mass model and slope design.

Keywords:
structural geology, diorite, discontinuity, assessment, mean value, breccia, reservoir characterization, database, strength, laboratory testing program
Subjects:
Reservoir Characterization, Exploration, development, structural geology
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2015. American Rock Mechanics Association
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