Tunnelling Questions

• Which one of the following linings is suitable for shield driven tunnels particularly in the subaqueous regions :
• Pick up the explosive used for tunnelling in soft rocks from the following :
• Which one of the following statements is not correct in respect of setting of an inclined tunnel:
• To attain the required shape of the tunnel section, we use :
• High pressure grouting is generally restored for concreting in the lining if the rock strata is:
• The most commonly adopted pattern of cut holes is :
• For highways, tunnelling is preferred to if the open cut exceeds :
• The cut of a tunnel face is shown in given figure. This is called
• The tunnels, the artificial underground passages are constructed for :
• The length of the needle beam used in needle beam method of tunnelling is usually
• For hauling muck from the tunnel, the following type of muck-car is used :
• In case of drift method of tunnelling, the drift may be excavated at
• Which one of the following methods is generally used for the layout of the muck-car tracks
• Which one of the following methods of tunnelling does not require the use of time bearing :
• Which one of the following statements is not correct for heading and benching method of tunnelling?
• The following operations are generally employed for tunnelling in hard rock. 1. Removing ground water, 2. Loading holes and firing the explosive 3. Setting up and drilling 4. Grouting and lining 5. Removing muck 6. Ventilation and removing explosion dust The correct sequence is :
• The method of draining in the tunnels, is generally known as
• Pick up the correct statement regarding drilling a tunnel from the following:
• For tunnels exceeding 300 m in length, the grade should be provided below
• Railway tunnels, are generally