Study of Surface Displacements on Tunnelling under Buildings Using 3DEC Numerical Modelling

Table 6

Horizontal displacements (mm) at the −3.1 m (10 m depth) from centre line due to varying building eccentricities.

	gf^*	m	m	m	m	m
2 storey	1.85	1.98	2.6	2.52	2.35	2.3
4 storey	1.85	2.82	2.74	2.56	2.39	2.32
8 storey	1.85	2.99	2.86	2.64	2.48	2.35

gf: under Greenfield condition; : eccentricity.