<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 ...

<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 ...

<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 ...

<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 ...

<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 ...

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 ...

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 ...

<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 ...

<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 ...