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Showing 1 to 1 of 1 for “"hazard zone"”.
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Geotechnische Modellvorstellungen zur Abschätzung von Gefährdungsbereichen des Altbergbaus und Schachtschutzbereichen im Aachener Steinkohlenrevier
… such shallow mining hollows and shafts, being hazardous to infrastructure and human life. The hard rock consisting of Carboniferous mudstones and sandstones of low to medium strength is covered by clayey to sandy Tertiary sediments, Quarternary sediments of the river Maas and Loess/Loessloam on …