Sökning: "David Saiang"
Hittade 4 avhandlingar innehållade orden David Saiang.
1. Behaviour of blast-induced damaged zone around underground excavations in hard rock mass
Sammanfattning : The presence of blast-induced damaged zone around an excavation boundary has been an important concern in rock construction. It is generally believed that the presence of this zone can pose problems related to stability and flow and consequently impair the performance and functionality of the excavation. LÄS MER
2. Damaged rock zone around excavation boundaries and its interaction with shotcrete
Sammanfattning : When an excavation is carried out in a body of rock, the mechanical, hydraulic and physical properties of the rock surrounding the excavation will be disturbed. The zone in which these occur is called the Excavation Disturbed Zone (EDZ) and must be represented in the quantitative assessment of the near-field host rock. LÄS MER
3. Footwall stability in SLC mining
Sammanfattning : This thesis is based on a case study of the Kiirunavaara sublevel cave (SLC) mine. It focuses on footwall stability and damage development in the mining infrastructure on mine scale. Damage to the infrastructure is mappable for the full height of the footwall by access through decommissioned infrastructure associated with earlier mining stages. LÄS MER
4. Analysis of Excavation Damage, Rock Mass Characterisation and Rock Support Design using Drilling Monitoring
Sammanfattning : Prior to an underground excavation a site investigation is carried out. This includes reviewing and analysing existing data, field data collected through outcrop mapping, drill core logging and geophysical investigations. LÄS MER