.... Barton shotcrete landslide Grimstad tunnel Norway bhasin rock mass quality Upstream Oil & Gas feasibility study Himalaya rock mass classification Reservoir Characterization road tunnel Rock Engineering Challenge construction landslide area 1. INTRODUCTION Tunneling to bypass major...

... ABSTRACT Six caverns have been constructed in the world''s longest double tube road tunnel, the Qinling Zhongnanshan tunnel, for special lighting and driving safety purpose. The tunnel is excavated through the Qinling Mountain Range of Shaanxi province, China, where the maximum rock overburden...

... ABSTRACT: Application of Tunnel Boring Machine (TBM) is considered as the rational and economical method of constructing road tunnel because rapid excavation by TBM leads to reduction of construction cost. The degree of reduction will be more high when the ground conditions are comprehended...

..., and are road tunnels or tunnels for oil and gaspipes. The greatest depth below sea level so far is about 250 m, and the greatest subsea length is approx. 3.1 km (Frierfjord gaspipe tunnel). The tunnels are situated in a variety of geological structures ranging from typical hard rock such as Precambrian gneiss...