Sökning: "Post Compaction"
Visar resultat 1 - 5 av 19 avhandlingar innehållade orden Post Compaction.
1. Analyses of Resilient Behavior of Unbound Materials for the Purpose of Predicting Permanent Deformation Behavior
Sammanfattning : Post compaction is the unintended compaction of the unbound material that commences immediately after a road is brought into service and caused by densification of the material. Analogies to this post compaction can also be seen in laboratory and field tests. LÄS MER
2. Improved understanding of sublevel blasting : Determination of the extent of the compacted zone, its properties and the effects on caving
Sammanfattning : Sublevel caving (SLC) is a mass mining method relying on the flowability of the blasted material. The ore is blasted in slices against caved material which is mainly waste rock. The result of the confined blast is greatly influenced by the interaction between the blasted material and the caved material. LÄS MER
3. On constitutive modelling of the compaction and sintering of cemented carbides
Sammanfattning : The common manufacturing procedure for components of cemented carbide is a closed die cold compaction of a powder and a subsequent sintering of the compact to full density and strength.Major problems with the manufacturing process are the possible fracturing on ejection from the tooling and the distortion in the final shape. LÄS MER
4. Fragmentation and waste rock compaction in small-scale confined blasting
Sammanfattning : Sub-level caving (SLC) is an important mass mining method, used at LKAB e.g. The caved rock or debris at the SLC interface reduces the fragmentation and the swelling of the blasted ring and it dissipates the explosive energy. These phenomena may immobilize the blasted ring, causing ore losses. LÄS MER
5. Effects of confinement and initiation delay on fragmentation and waste rock compaction : Results from small scale tests
Sammanfattning : Sub-level caving (SLC) is classified as a mass mining method and there is an increasing interest in its application worldwide and in a very wide range of geotechnical environments. Design of sub-level blasting rounds and optimization has become more important now when the sizes of the blasting rings have become larger. LÄS MER