Sökning: "in-tunnel seismic"

Hittade 2 uppsatser innehållade orden in-tunnel seismic.

1. 1. An Innovative In-Tunnel Seismic Study for Sustainably Extracting Apatite Ore at the Siilinjärvi Mine, Eastern Finland

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Anna Donczew; [2019]
   Nyckelord :in-tunnel seismic; reflection seismic; traveltime tomography; carbonatites; shear zones; Siilinjärvi; tunnelseismik; reflektionsseismik; restidstomografi; karbonatiter; skjuvzoner; Siilinjärvi;

   Sammanfattning : Siilinjärvi located in eastern Finland is presently the only phosphate mine with significant phosphorus production in western Europe. Phosphate rock and phosphorus are known as a critical raw material for the European Union due to their economic importance and being prone to the supply risks. LÄS MER

3. 2. Kombinerad förundersökning för tunnlar med resistivitet och refraktionsseismik i urban undervattensmiljö

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Teknisk geologi; Lunds universitet/Väg- och vattenbyggnad (CI)

   Författare :Elisabeth Lindvall; Erik Warberg Larsson; [2016]
   Nyckelord :Geophysics; underground; structures; tunneling; construction; urban; TRUST; seismic; resistivity; underwater; survey; geofysik; resistivitet; seismik; undervatten; undersökning; Technology and Engineering;

   Sammanfattning : Due to expanding cities and increasing population infrastructure needs to expand in a safe and sustainable way with little effect on the environment and economy. Years of urbanization doesn’t make it easy, no free spaces are available and culture marked buildings are protected. The only alternative left is to construct in layers. LÄS MER