Why sand island method of sinking of caisson is used?

Related MCQs

• Which of the following method is not used for Floating of Caisson?
• By which method caisson can be sunk into hard rock?
• Which caisson is used when excavation is not required?
• Box caisson can be used up to depth _________ m.
• Which of the following is not a use of Caisson?
• Which of the following is not a type of caisson?
• Which of the following is not a type of Open Caisson?
• Which of the following is a shape of well caisson?
• Water is removed from pneumatic caisson using _________.
• Maximum pressure of air inside pneumatic caisson is _______ N/mm2