Sökning: "Mattias Ryttberg"

Hittade 2 uppsatser innehållade orden Mattias Ryttberg.

1. 1. Significance of Fracture Patterns in a Rock Mass during Excavation by Blasting in Bandhagen, Sweden

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Mattias Ryttberg; [2015]
   Nyckelord :Fracture sets; rock excavation; rock wall; instability; Spricksystem; utschaktning; bergvägg; instabilitet;

   Sammanfattning : When excavating a rock wall by blasting, pre-existing structures in the rock has a strong impact on the stability of the wall. For excavation in Bandhagen in Stockholm, the nature and orientation of the pre-existing geological features, namely fractures, were not taken into consideration before excavation begun. LÄS MER

3. 2. Introducing Lantmäteriet’s gravity data in ArcGIS with implementation of customized GIS functions

   Kandidat-uppsats, Institutionen för geovetenskaper

   Författare :Mattias Ryttberg; [2013]
   Nyckelord :GIS; geodesy; lantmäteriet; gravity; model builder; modelbuilder; python;

   Sammanfattning : Gravity is measured and used by Lantmäteriet to calculate a model of the geoid to get accurate reference heights for positioning. Lantmäteriet are continuously measuring new gravity and height data across Sweden to both complement, replace and to add new data points. This is mainly done by measurements in the field at benchmark points. LÄS MER