Experimental and Numerical Investigation on the Effects of Foundation Pit Excavation on Adjacent Tunnels in Soft Soil

Table 2

Model and prototype sizes.

		Prototype (m)	Model (mm)
Diaphragm wall	Width of the foundation pit	12	160
	Excavation depth	9	120
	Insert depth of the diaphragm wall	6.75	90
	The thickness of the diaphragm wall	0.8	8
	Diameter of the inner support	Ф0.61	Ф4.5
Tunnel	Diameter	6	80
	The thickness of the lining	0.225	3
	Distance between the tunnel and diaphragm wall	6 or 12	80 or 160
	Buried depth	9	120