Underground — APAC — India — Tunneling
■■ POWER SET Hanger Bolts
■■ POWER SET Self-Drilling Friction Bolts
■■ DYWI ® Drill Hollow Bar Anchors
■■ LSC™ Elements ( Lining Stress Controllers )
■■ AT 76-DR Drainage System
■■
GRP Anchors
Because very difficult geology was encountered in some areas , 2 complete , 15m long Type AT – 76 and AT – 114 pipe umbrellas were additionally installed in the south drive . The pipe umbrellas were installed using two AT – Pipe Umbrella Automation Units that were also produced and supplied by DSI Underground . Furthermore , DSI supported the project with a supervisor on site .
Currently , DSI Underground is also supplying OMEGA-BOLT ® Expandable Friction Bolts that are continuously installed in accordance with construction progress . This system is very suitable for use in the difficult geology of the Rohtang Tunnel because it immediately reaches its full load bearing capacity over the entire installed bolt length and reliably maintains its support capacity even when undergoing deformations .
Owner Border Roads Organisation , India General Contractor M / s STRABAG AG - Afcons Joint Venture , consisting of STRABAG AG , Germany and Afcons Infrastructure Limited , India Engineering SMEC , Australia
DSI Unit DSI Underground GmbH , Austria DSI Scope Production , supply , technical support , supervision DSI Products POWER SET Hanger Bolts , POWER SET Self-Drilling Friction Bolts , DYWI ® Drill Hollow Bar Anchors , LSC™ Elements ( Lining Stress Controllers ), AT 76-DR Drainage System , GRP Anchors , pipe umbrella systems , Type AT – 76 and AT – 114 , 2 AT – Pipe Umbrella Automation Units , OMEGA-BOLT ® Expandable Friction Bolts
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