... are important for their functionality as well as the protection of groundwater. The project "Effect of long-term operation of heat pumps on the sustainability of the energy potential of the rock environment" is focused on the research of a suitable exchanger grout for heat collection. Optimization and long...

... to determine the possible modes of failure. Letšeng Diamond Mine is an open pit operation where two kimberlite pipes (Main and Satellite Pipes), both bearing extremely low-grade ore (averaging under two carats per hundred tons) are mined as consecutive push backs. The mine employs conventional mining...

... Abstract The work described in this article was aimed at assessing the stability of the waste dumps designed for "Rajo Sur" of El Teniente Division (DET) in terms of the expected subsidence rates generated by the caving operation. 3D numerical modeling was used to simulate the caving process...

... Abstract For hydraulic fracture operations, fracture geometry, pumping time and pressure propagation is a concern. Numerical simulations are demanding in computational capacity and time. Artificial neural networks can help in the real time daily operations. This paper focuses...

..., there is no country with a repository in operation until today. Worldwide, Onkalo in Olkiluoto (Finland) is the closest project to get permission for the operation as a repository site. Usually, a final disposal site is intended to be passively safe with no intention to retrieve the radioactive waste. As this action...

..., pore pressure in the surrounding rock mass is dependent on water pressure in the tunnel itself. During long periods of standstill or steady operation, an equilibrium is reached. However, when load changes are occurring, delayed response of rock mass may cause significant pressure gradients between...

... creation reservoir characterization manifestation mining operation diameter metals & mining monitoring operation displacement sensor criteria Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367-42284-4...

... characterization attenuation coefficient porosity group 1 compartment operation cii pore porosity quarry spatial attenuation group 2 upstream oil & gas evolution martinez-martinez garcia del cura correlation muckpile extraction operation dev std Rock Mechanics for Natural Resources...

.... human computer interaction machine learning rnn algorithm artificial intelligence investigation rqd procedure equation derivative neural network information exploration operation variation estado unido mexicanos sensation figure 1 sequence geotechnical safety sediment spatial...

... Abstract Deformation within geotechnically constrained mines is a capital and operational intensive expense. It is the objective of all operations to minimise these costs throughout the life of mine, whilst maximising profits. Budgeting for deformation extends beyond the cost of consumables...

... many adverse effects, such as ground vibrations, air shock waves, flying rocks and noises et al. Excessive vibrations often result in rock damages and structures instabilities (Verma et al. 2018). Hence, it has been concerned mostly by site operators among these negative effects (Yang et al. 2016...

.... The Open Pit started its operations in March 2018. First, the soil and saprolite layers have been removed with excavators, then, to remove hard rock it have been used explosives. In the surroundings of the mine there is a small community called Santos Reis, which is about 500 meters of the operations...

... Abstract In an open pit operation, the quality of the excavation is of great importance to guarantee the stability of the pit. Fore that reason, in Córrego do Sítio mine it was adopted a methodology of validating the adherence of the executed pit by comparison of executed and planned...

... on the region of influence induced by blasting. 1 Introduction The detonation represents one of the most important unit operations in all underground mining operations, where is quest a good fragmentation of the material and a good adherence of the planned advance, which is in development or in mining...

... of on-site fracturing operations for deep shale. 1 Introduction Shale gas is one of the numerous important unconventional energy resources around the world. China has achieved commercial exploitation and production of shale gas in recent years, the accumulated proven geological reserves of shale gas...

... development in the headrace tunnel of Moglicë hydropower project. The aim is to determine the behavior of the rock mass after water filling of the tunnel and during the first year of operation. The monitoring rig installed will continuously record pressure and deformation development in the rock mass behind...

... structural geology reservoir characterization fracture shale wellbore design consequence stability drilling borehole compaction keynote lecture operation figure reservoir fjaer hydrocarbon application permeability strength reservoir compaction Keynote Lectures 01_KN1_E_Fjaer.indd 1 23...

... Abstract Risk and Hazard assessment when leaving large pillars at depth, in a high stress environment, was based on a case study at Kusasalethu Gold Mine, operated by Harmony Gold, located on the West Rand in Gauteng, South Africa. A narrow tabular gold package is mined, at a depth of 3400 m...

... Abstract The incline tunnel in coal measure rocks in one of the oldest underground mine in southern part of the India is being driven. Keeping in view the long-term planning, it is proposed to install haulage-cum-belt conveyor in this incline to reach and facilitate operation of the major King...

... to be done. 1 Introduction The Mineração Serra Grande (MSG) gold mines complex is formed by several deep underground and shallow open pit operations at the facilities of AngloGold Ashanti, in central Brazil. The Ingá underground mine operations have been operating for over 3 years, its excavations...