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Full-Text Articles in Engineering

Wall Control Blasting At The Orphan Boy Mine – Butte, Montana, Jewel Sakyi Apr 2019

Wall Control Blasting At The Orphan Boy Mine – Butte, Montana, Jewel Sakyi

Graduate Theses & Non-Theses

Blasting is often conducted to produce desirable fragment sizes to minimize production cost and energy consumption in downstream processes, including loading, hauling, and crushing. However, the venting of explosive energy in the rock formation sometimes causes unwanted damage beyond the desired perimeter of the blast area. Control blasting has mainly been used in surface mining operations to minimalize blast damage. To explore the applicability of control blasting in underground mining operations, protect the safety of students, faculty, and staff, prevent overbreak, and to ensure the stability of openings and workings, four experimental control blasts, comprising of three smooth blasts and …


Developing Trees Tolerant To Degraded Mine Soils, Francis Inkoom Apr 2019

Developing Trees Tolerant To Degraded Mine Soils, Francis Inkoom

Graduate Theses & Non-Theses

The project discussed in this thesis is part of a larger project developing trees that can tolerate and withstand heavy metals and acidic soils from historic mining operations in Butte Montana as a solution to re-establishing long-term tree growth on those sites. The project involved growing tree seedlings native to Butte, Montana and planting them on degraded mine soils, tailings, and processing wastes (mine waste) located within the Butte Priority Soil Operable Unit (BPSOU). The seedlings were grown for 34 weeks in a greenhouse located on Montana Tech’s campus before being transplanted to a contaminated site (the Clark Mill site) …