Helmut Wannenmacher

tunnel grouting tbm pressure tunnel passive prestressing hydropower shaft construction grouting analyses overbreak thrust- penetration gradient specific penetration geotechnics claquage manschettenrohrverfahren semmering basistunnel eguana grout control management injektionsmaßnahmen semmering basetunnel data mining heavy construction well environment sri lanka groundwater water inflow pressure shaft faido tbm; gbt; lago bianco niagara tensile strength spalling ucs cavern construction hard rock lidar monitoring seeber diagram