Deformation Characteristics of a Deep Subway Foundation Pit in Hard Rock Strata under a Delayed Supporting Condition

Table 1

Geological conditions of the foundation pit.

Geotechnical stratum	Depth; (m)	Unit weight (kN/m^3)	Elastics; modulus (MPa)	Cohesion; (kPa)	Internal friction angle; (°)	Poisson’s ratio
Miscellaneous soil	0∼2	16.5	40	25	5.5	0.3
Strong weathered limestone	2∼3	19.5	70	45	8	0.3
Medium weathered limestone	3∼8	20.3	70	45	8.2	0.2
Marl	8∼15	25	110	25	9.5	0.2
Limestone	15∼18	25	110	25	10	0.2
Weak weathered limestone	>18	27.5	1150	150	13.5	0.15