Dia of Tunnel, Powder factor, Total length, Used of Grade in Shotcrete & Gantry, Cycle time, Excavation area, About rock bolt installing & grouting, Rock class & supporting sydtem, what is natm technology..

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Accepted Answer

The interview question is about various aspects of tunnel execution engineering.

Tunnel diameter is a crucial factor in determining the excavation area and the type of equipment to be used.
Powder factor is the amount of explosive used per unit volume of rock. It affects the fragmentation of the rock and the safety of the workers.
Total length of the tunnel is an important parameter in planning the excavation sequence and the support system.
Shotcrete is used to stabilize the tunnel walls and roof. The grade of shotcrete depends on the rock class and the level of support required.
Gantry is a type of support system used in tunneling. It consists of steel beams and columns that are installed along the tunnel walls.
Cycle time is the time taken to complete one excavation cycle. It depends on the type of equipment used and the rock conditions.
Rock bolt installation and grouting are important for providing additional support to the tunnel walls and roof. The type and spacing of rock bolts depend on the rock class and the level of support required.
Rock class is a classification system used to describe the geological properties of the rock. It affects the excavation method, support system, and safety measures.
NATM (New Austrian Tunneling Method) is a tunneling technique that emphasizes the use of the surrounding rock mass as a primary support system. It involves a flexible approach to excavation and support, based on the rock class and the observed behavior of the rock mass.

Dia of Tunnel, Powder factor, Total length, Used of Grade in Shotcrete & Gantry, Cycle time, Excavation area, About rock bolt installing & grouting, Rock class & supporting sydtem, what is natm technology..

Popular interview questions of Executive Engineer

Top HR questions asked in Megha Engineering & Infrastructures Executive Engineer

Dia of Tunnel, Powder factor, Total length, Used of Grade in Shotcrete &amp; Gantry, Cycle time, Excavation area, About rock bolt installing &amp; grouting, Rock class &amp; supporting sydtem, what is natm technology..

Popular interview questions of Executive Engineer

Top HR questions asked in Megha Engineering & Infrastructures Executive Engineer

Dia of Tunnel, Powder factor, Total length, Used of Grade in Shotcrete & Gantry, Cycle time, Excavation area, About rock bolt installing & grouting, Rock class & supporting sydtem, what is natm technology..