Applications of new reinforcement methods in city tunnels for shield launching and arriving

The cement-soil deep mixing pile  +  the highpressure rotary jet grouting pile, SMW pile + highpressure rotary jet grouting pile, and high-pressure rotary jet grouting pile are often used in the soft soil area. The cement-soil deep mixing pile + highpressure rotary jet grouting pile has been widely used. The artificial freezing method is used when the environment is restricted on the ground.