kw.\*:("DU TOITSKLOOF TUNNEL")
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CONSTRUCTION OF A SECTION OF THE DU TOITSKLOOF TUNNEL BY USE OF GROUND FREEZING = CONSTRUCTION D'UN TRONCON DU TUNNEL DU TOITSKLOOF EN UTILISANT LA CONGELATION DU SOLCOCKROFT TN; DENNE RJ; HARVEY SJ et al.1982; TUNNELLING '82. INTERNATIONAL SYMPOSIUM. 3/1982/BRIGHTON; GBR; LONDON: INSTITUTION OF MINING AND METALLURGY; DA. 1982; PP. 105-115; BIBL. 10 REF.; 2 TAB. ; TABL./ILL.Conference Paper