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Publications tagged with [ground support]

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<p>The Hong Kong Institution of Engineers (HKIE), in particular the Geotechnical Division (GD) and the Hong Kong Geotechnical Society (HKGES) promote close collaboration with other Professional Engineers&rsquo; Institutions within the region to enhance sharing ...
Reference: Geotechnical Division, The Hong Kong Institution of Engineers
<p>Fibre Reinforced Shotcrete (FRS) reinforced with macro-synthetic fibres has now been used to stabilize ground in underground mines and tunnels, and for slope stabilization, for over 10 years. Experience has demonstrated that macro-synthetic bres are capable ...
Reference: 2009 ECI Conference on Shotcrete for Underground Support XI
<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>The 5 m diameter 23.3 km long Yacamb&uacute;-Quibor tunnel is designed to carry water through the Andes from the Yacamb&uacute; dam in the wet tropical Orinoco basin to the semi-arid but fertile Quibor basin in western Venezuela. The tunnel is excavated ...
Reference: Rock Mechanics and Rock Engineering, Vol. 42, No. 2, 389 - 418
<p>Falls of Ground is one of the highest causes of incidents, accidents and fatal injuries in our mines today. <br />These falls of ground may occur as soon as the face is exposed after blasting or after machine cutting. The falls of ground can also occur ...
Reference: Narrow Vein and Reef 2008
The paper presents the actual status of the CANMET-MMSL impact-testing apparatus, and summarizes some results of the testing carried out until now. The energy balance of the system, needed to validate measurements done and test results achieved, will be presented ...
Reference: 6th International Symposium on Ground Support in Mining and Civil Engineering Construction, an ISRM-Sponsored Regional Symposium
Molycorp, Inc.’s Questa Mine plans to switch from gravity draw in Block 1 to a load-haul-dump (LHD) draw system in the East and West blocks of the D Orebody. Changes in mining method require modifying the support design. This paper summarizes the numerical ...
Reference: The 41st U.S. Symposium on Rock Mechanics (USRMS): "50 Years of Rock Mechanics - Landmarks and Future Challenges.", Golden, Colorado, June 17-21, 2006
<p>Tunnels of 10 to 16 m span are frequently constructed for hydroelectric or transportation projects, and many of these tunnels are excavated in rock masses of very poor quality. When the ratio of rock mass strength to in situ stress falls below 0.2, squeezing ...
Reference: JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING / SEPTEMBER 2001
<p>What separates the support of mining openings from the support of similar civil engineering structures is the fact that mine openings have to survive large deformations as a result of changing stress conditions induced by progressive mining. Steel fibres ...
Reference: The Journal of The South African Institute of Mining and Metallurgy MAY/JUNE 1998
<p>Portal sections of road and motorway tunnels are usually the most demanding parts of tunnel construction because they are usually executed in areas with lower or lowest rock quality. Areas affected by landslides, regardless whether surface or with in-depth ...
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