Lifting and Handling Precast Tunnel Segments [ READ ]
Vijay Bhushan Gupta, Dr. M.P.Jakhanwal
In this research paper, the authors have dealt the design criteria for precast tunnel segments handling and lifting both in the factory as well as at the site of Tunnelling mostly done with the help of TBM now a days. Tunnel lining segments have to be handled from the factory or storage site and carried to the tunneling site for placing the lining segment at the right place in the underground tunnels with the help of TBM. Therefore, lifting, moving, handling and placing the tunnel lining segment without any damage and with full safety, is a major challenge for site engineers. In this research paper an effort has been done to calculate the max. Moments and shear forces that develop in tunnel lining segments while lifting and handling them in various combinations as per the need at site. If the moments /shear force induced in segment while handling them is known, the engineers can procure the correct type of tunnel handling equipments of required capacity in order to handle the movements of lining segments without compromising the safety standards and thus avoiding any mishap at site.
Vijay Bhushan Gupta, Dr. M.P.Jakhanwal
In this research paper, the authors have dealt the design criteria for precast tunnel segments handling and lifting both in the factory as well as at the site of Tunnelling mostly done with the help of TBM now a days. Tunnel lining segments have to be handled from the factory or storage site and carried to the tunneling site for placing the lining segment at the right place in the underground tunnels with the help of TBM. Therefore, lifting, moving, handling and placing the tunnel lining segment without any damage and with full safety, is a major challenge for site engineers. In this research paper an effort has been done to calculate the max. Moments and shear forces that develop in tunnel lining segments while lifting and handling them in various combinations as per the need at site. If the moments /shear force induced in segment while handling them is known, the engineers can procure the correct type of tunnel handling equipments of required capacity in order to handle the movements of lining segments without compromising the safety standards and thus avoiding any mishap at site.
