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Many states allow construction of landfills over previously mined areas. However, mitigation of the underground mines by filling or removal is often required prior to landfill construction. A settlement analysis for the proposed vertical expansion of a residual ...
Reference: Proceedings of Specialty Conference GeoFlorida 2010: Advances in Analysis, Modeling and Design, ASCE, Orlando, FL, March, 2010, pp. 244-253.
Underground stone mines in the United States make use of the room-and-pillar method of mining. A prerequisite for a safe working environment is that the pillars should adequately support the overburden and the pillar ribs and rooms should remain stable during ...
Reference: 27th International Conference on Ground Control in Mining
Moisture deterioration of clay-rich roof rocks causes high numbers of roof falls in coal mines in humid summer months. Rocks with high moisture content are generally weaker and can further deteriorate when subjected to wetting and drying cycles. As a result, ...
Reference: 2009 SME Annual Meeting and Exhibit, February 22-25, Denver, Colorado
<p>The authors conducted a study of backfill practices in underground mines across Canada to assess the current state of backfill usage and to overview potential hazards associated with backfill practice, from preparation to transportation to placement. The ...
Reference: ROCKENG09: Proceedings of the 3rd CANUS Rock Mechanics Symposium, Toronto, May 2009 (Ed: M.Diederichs and G. Grasselli)
Current advances in roof support automation require a fast and effective skin reinforcement of underground mine roadways. To satisfy these needs a strong and tough fibre reinforced polymeric alternative is emerging as a logical substitute to the old steel ...
Reference: Aziz, N (ed), Coal 2009: Coal Operators' Conference, University of Wollongong & the Australasian Institute of Mining and Metallurgy, 2009
<p>While mining the approved stope sequence in the 100/900 ore bodies at the North Mine in Sudbury Basin of Vale Inco Ltd and following a crown blast in one of the stopes in 100 orebody in a sill pillar area, several major seismic events, with the highest ...
Reference: ROCKENG09: Proceedings of the 3rd CANUS Rock Mechanics Symposium, Toronto, May 2009
<p>An independent panel of experts was appointed in December 2006, jointly by the NSW Minister for Planning and the Minister for Primary Industries &amp; Energy to review the current status and future implications for underground coal mining in the Southern ...
Reference: 2009 Coal Operators’ Conference
This paper is based on the Townlands Ore Replacement Project whereby the concept of conventional sinking of one large diameter shaft was declined and replaced with three smaller raise bored shafts. A wire line geophysical survey was done and the results indicated ...
Reference: The Southern African Institute of Mining and Metallurgy Shaft Sinking and Mining Contractors Conference 2009
It was found that current mine layouts have been successful in providing support to the overburden, while a small number of isolated pillar failures were observed. The stable pillar layouts and failed pillars were plotted on a chart that demonstrates the relationship ...
Reference: Min Eng 2008 Nov; 61(11)
The drive for mechanization of stoping operations on South African platinum, gold and chrome mines is favouring stope support by rock bolts rather than the traditional volumefilling support methods such as mine poles. Many of the stopes are less than two metres ...
Reference: 6th International Symposium on Ground Support in Mining and Civil Engineering Construction, an ISRM-Sponsored Regional Symposium