Experimental Study on Acoustic Emission Characteristics of Dry and Saturated Basalt Columnar Joints under Uniaxial Compression and Tensile Damage

Table 1

Basalt columnar joints and tensile strength of the sheet.

Moisture condition	Specimen number	Sample size: diameter × height (mm)	Breaking load (kN)	Tensile strength (MPa)	Average value (MPa)	Energy (kN × mm)	Average value (kN × mm)
Saturation	Pb-1	φ50.2 × 27.1	9.487	4.440	4.505	217.673	221.008
	Pb-2	φ50.3 × 18.4	9.827	4.595		234.529
	Pb-3	φ50.3 × 25.5	8.447	4.178		210.903
	pb-4	φ50.3 × 20.1	7.128	4.476		213.481
	pb-5	φ50.2 × 14.8	5.668	4.835		228.453
Dry	pg-1	φ50.3 × 25.3	13.386	6.675	6.657	239.891	242.401
	pg-2	φ50.3 × 22.7	11.485	6.404		246.444
	pg-3	φ50.2 × 18.8	9.381	6.330		242.405
	pg-4	φ50.3 × 27.3	15.085	6.982		239.902
	pg-5	φ50.5 × 15.0	8.247	6.895		243.364