Energy Absorption Characteristics of Frozen Soil Based on SHPB Test

Table 3

SHPB test design for three types of frozen soil.

Specimen group	Type of soil	Impact loading pressure (MPa)	Stress state	Freezing temperature (°C)
Group A	Clay	0.3	Confining pressure of 0.5 MPa	−5
				−15
		0.45	Confining pressure of 0.5 MPa	−5
				−15
		0.6	Confining pressure of 0.5 MPa	−5
				−15
Group B	Sandy soil	0.45	Uniaxial condition	−5
				−15
			Confining pressure of 0.5 MPa, 1.0 MPa, 1.5 MPa, and 2.0 MPa	−5
				−15
Group C	Floury soil	0.45	Confining pressure of 0.5 MPa	−5
				−15