Study on Creep Characteristics of Expansive Soil in High-Fill Channel of South-to-North Water Transfer Project

Table 12

Physical and mechanical properties of layered soil (TS95 + 670 – 95 + 770).

Era	Lithology	Layer thickness	Density	Compression modulus	Cohesion	Internal friction angle	Poisson’s ratio
		m	kg/m^3	MPa	kPa	°
Q^dl	Silty clay	5.00	2010.20	5∼10	28	17	0.3
Q2^al+pl	Expansive soil	10.00	2020.41	13∼16	42	18	0.35
N	Clay rock	31.23	2020.41	17∼18	25	19	0.25