Koha

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Special geological characteristics of the Alps and Jura Region; Andreae. C.;Terminology; Fraenkel. K. H.;Factors influencing blasting results; Fraenkel. K. H.;Rock blasting methods in tunnelling; Fraenkel. K. H.;Calculation of the time consumed in rock drilling and blasting; Wallin. S.;Methods for testing the drillability of rocks; Sievers. H.;The planning of rock blasting operations in civil engineering; Kallin. A.;Practical drilling patterns; Fraenkel. K. H.;Swiss experience in driving headings and tunnels through unstable rock; Andreae. C.;The selection of suitable compressed air plant for use in civil engineering projects; Munck. J.;Notes on hard metals for rock drill steels; Gisner. B.;Some notes on the physical properties of explosives; Nilsson. A.;Nitroglycerine explosives; Nilsson. A.;Explosives; Trautzl. K.;Firing electrically; Johansson. C.;Short delay blasting; Langefors. U.;Experience with different explosives for tunnelling in Switzerland; Trautzl. K.;Ventilation; Loison. R.