Essays about: "shotcrete"

Showing result 6 - 10 of 16 essays containing the word shotcrete.

1. 6. Study of Production Drifts Stability and Assessment of Reinforcement Requirements at LKAB Konsuln Test-Mine Levels 436 and 486 Using Geologic Structures Data, and Modelling Software – Dips and Unwedge:  a Part of dp1 Project (Mine Layout and Technology) of the Sustainable Underground Mining (Sum) Project

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Oludare Joseph Olufe; [2021]
   Keywords : Drift stability analysis; underground excavation reinforcement; underground mining stability assessment; geologic structures; wedges modelling; rock mechanical analysis; Unwedge program; Dips program;

   Abstract : Study of Production Drifts Stability and Assessment of Reinforcement Requirements at LKAB Konsuln Test-Mine Levels 436 and 486 Using Geologic Structures Data, and Modelling Software - Dips and Unwedge:  a Part of dp1 Project (Mine Layout and Technology) of the Sustainable Underground Mining (Sum) Project Oludare Joseph Olufe Global population has been on exponential increase over the past half century. The population explosion is driving massive urbanization and infrastructure developments across the globe, which result in huge demand for metals, especially steel. READ MORE

3. 7. Laboratory testing of shotcrete with fibres of steel, basalt or synthetic materials

   University essay from KTH/Betongbyggnad

   Author : Muralidharan Rengarajan; [2020]
   Keywords : Fibre reinforced shotcrete; Energy absorption; Residual strength; Fibres; and Laboratory testing;

   Abstract : Shotcrete or sprayed concrete has become an inevitable material for stabilising and supporting hard rock tunnels. To prevent rock block fallouts in the excavated tunnel, shotcrete is pneumatically projected under high pressure on the rock surface. READ MORE

4. 8. Field damage investigation and evaluation of numerical model using the collected data at Kemi Mine

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Heidi Rikberg; [2019]
   Keywords : Rock mechanics; field damage investigation; damage mapping; evaluation; numerical model; mining;

   Abstract : This Master´s Thesis studies the applicability of existing numerical model to predict the conditions in the drifts at the mine. Damage mapping, covering the existing production levels, has been carried out to study the condition of the surface support, i.e. READ MORE

5. 9. Optimization of the steel-fiber dosage in shotcrete used in the Kankberg mine

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Pontus Larsson; [2018]
   Keywords : rock mechanics; shotcrete; bergmekanik; sprutbetong;

   Abstract : The Swedish metal company Boliden has since the early 20th century been mining deposits in the mining field commonly referred to as the Skelleftefield in northern Sweden. The youngest of the active mines is the Kankberg mine which is an underground mine whose reserve contains gold and tellurium. READ MORE

6. 10. An experimental study of the validity of the round panel test method for shotcrete

   University essay from KTH/Betongbyggnad

   Author : Nadia El zain; [2018]
   Keywords : Shotcrete; sprayed concrete; yield line theory; tunnel lining; steel fibers; round determinate panels; test beams; Sprutbetong; runda plattor; tunnelbeklädnad; fiberarmerad sprutbetong; stålfibrer; böjdraghållfasthet; balkar; mätosäkerhet;

   Abstract : Shotcrete (sprayed concrete) was used for the first time in 1914 and has become of  growing importance in stabilizing the excavated tunnel sections over the past century.  Even though the technology develops, there are some difficult tasks such as the design of a bolt anchored tunnel lining made of shotcrete. READ MORE