Effects of Excavation Gap Filling of Under-1 Crossing Tunnel on Pipelines

Table 2

Physical and mechanical properties of the soil.

Properties	Bulk weight (kg/m^3)	Cohesion (kPa)	Friction angle (°)	Elastic modulus (MPa)	Initial void ratio
Plain fill	1750	8	10	—	0.35
Sandy clay fill	1980	16	32	5	0.23
Sandy clay	1920	0	26	9.3	0.25
Organic silty clay	1690	23	12.7	4.2	0.31
Fine sand	2070	0	29	63	0.29