Cyberabad, Telangana, India | Telangana State Industrial Infrastructure Corporation Limited (TSIIC)
Madhapur of Cyberabad Zone of TSIIC, a part of Hyderabad Knowledge City which falls under Industrial Area Local Authority has grown phenomenally in the last few years with many new offices / buildings coming up there. Many more buildings are under different stages of completion with noteworthy T-Hub’s iconic building (T-Hub – a Government of Telangana’s initiative for fostering innovation ecosystem) under advanced stage of completion. To meet the fast increasing demand of better connectivity for the increased traffic, Telangana State Industrial Infrastructure Corporation Limited (TSIIC) has recently constructed a new carriageway of around 850 meter connecting internal roads of Hyderabad Knowledge City with the Old Mumbai Highway joining the same adjacent to Bio-diversity Park.
This new road was constructed by drilling the hillock to create a passage for the road. Now, to mitigate the hazard for the carriageway users from loose boulders on the hilltop and rock slope falling on to the carriageway, TSIIC has decided to take up slope stability and safety works.
To reduce the risk of falling rocks on to the newly constructed Carriageway, TSIIC appointed IIT, Hyderabad to finalize a suitable scheme. TechFab India suggested a solution for Rockfall Protection & GeoHazard Mitigation based on the recommendation of IRC Highway Research Board Special Report 23 on ‘State of the Art: Design and construction of rockfall mitigation systems’ which was finally adopted. The solution consisted of rock bolting, rockfall netting, and cable wire rope at edges, top, bottom, and diagonals.
This solution was provided at all locations except the severe areas with overhangs. Only for the severe areas with overhangs, rock bolting, rockfall netting, and rhomboidal wire rope panels have been provided. A Rockfall Protection Embankment also provided at the toe of the slope. The rockfall protection embankment consists of a 3m high toe gabion wall with a vertical face towards the road and a trapezoidal section towards the cutting. This trench formed by the trapezoidal section towards the slope cutting also act as a rock trap ditch for any debris that may slide along the nettings.
