1887

oa Civil Engineer in South Africa - The Mqwabe to Sikame deviation with special reference to its tunnels

 

Abstract

To achieve the higher gradient standards set for the coal line improvements, a deviation of an approximately 22 km long portion of the existing line between Paulpietersburg and Vryheid in northern Natal was required. In this paper the preliminary route location and some aspects of the detailed route location for this deviation are described. On the approved route of the deviation three tunnels are proposed with a total length of 3,32 km. Two of these tunnels totalling 2,72 km in length will be double track tunnels. An insight is given into the considerations which went into the selection of the profile for the double track tunnels and the preparation of a new SATS specification for tunnelling.

Ongeveer 22 km van 'n gedeelte van die bestaande spoorlyn tussen Paulpietersburg en Vryheid in Noord-Natal moes verlê word ten einde te voldoen aan die hoër heilingstandaarde wat gestel is vir die Steenkoollynverbeterlngs. Hierdie referaat beskrywe die voorlopige roetebepaling asook aspekte van die gedetailleerde roetebepaling vir hierdie verlegging. Drie tonnels met 'n totale lengte van 3,32 km is voorgestel vir die goedgekeurde roete. Twee van hierdle tonnels met 'n totale lengte van 2,72 km, sal dubbelspoor tonnels wees. 'n lnsig word gegee van die oorwegings wat vir die profielkeuse van die dubbelspoortonnels gegeld het asook vir die opstelling van 'n nuwe spesifikasie vir tonnelwerke vir die S A Vewoerdienste.

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/content/civeng1/27/3/EJC24985
1985-03-01
2016-12-08
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