Sökning: "Andreas Hammer"

Hittade 3 uppsatser innehållade orden Andreas Hammer.

  1. 1. Påldrivning: Jämförelse mellan luft- och vattendriven borrning : En utredning av jämförelser avseende slitage, logistik och driftkostnader

    Kandidat-uppsats, KTH/Byggteknik och design

    Författare :Andreas Bengtsson; Pierre Bodin; [2022]
    Nyckelord :: percussion hammer; pilot; DTH; pile driving; wear; drill rig; casing; piston; check valve; water-handling; sedimentation; : sänkhammare; pilot; DTH; pålning; slitage; borrigg; foderrör; kolv; backventil; vattenhantering; sedimentering;

    Sammanfattning : Skanska Grundläggning in Region Special wishes to gain an increased understanding of the extent to which it differs in the wear of percussion hammers and pilot drill crowns, depending on which driving medium is used in down-the-hole drilling, as well as logistical and economic aspects depending on the chosen method. Down-the-hole drilling means that the hammer works down in the borehole and forms one of the components at the far end of the drill string together with a drill bit. LÄS MER

  3. 2. A Process and Enterprise Maturity Model (PEMM) Analysis of the Hampered Big Pharma Drug Discovery Process

    Magister-uppsats, Blekinge Tekniska Högskola/Institutionen för industriell ekonomi

    Författare :Andreas Persson; Fredrik Jeppsson; [2017]
    Nyckelord :;

    Sammanfattning : The big pharma drug discovery process is currently hampered by long lead times, high costs, and fre-quent failures. On the other hand the general view is that many small pharmaceutical and biotech com-panies are more successful in terms of preclinical drug project transitions, and many small companies and/or their projects are bought by big pharma. LÄS MER

  4. 3. Metodik för fastställande av bärförmåga på befintliga betongkonstruktioner

    Kandidat-uppsats, Avdelningen för bygg- energi- och miljöteknik

    Författare :Christoffer Pettersson; Andreas Nordman; [2011]
    Nyckelord :method; concrete; metodik; betong; betongkonstruktioner;

    Sammanfattning : Many buildings are now nearing the end of their service life. This applies to both the older houses from the 40's and 50's to the million project houses that did not prove to be as sustainable in the long run. Often there is a desire to extend the service lifetime, but to do that you need to make detailed inspections. LÄS MER