Research on Development of Immersed Tunnel Engineering at Home and Abroad

The geological condition of the tunnel engineering is so complicated that the requirement of waterproof and anti-permeability under the different encroaching condition to the life-span of the engineering is high.The pipe section of the immersed tunnel is the large-volume concrete structure,which is complicated in the structure shape.Because of the hydration heat of the concrete, it's difficult to control the temperature crack during the pipe production,which can weaken the cracking and permeability control,and durability of the pipe of the immersed tunnel.Based on the immersed tunnel engineering at home and abroad,and for the high durability purpose of the concrete structure,the development of the immersed tunnel engineering at home and abroad is presented in detail.