noun
triaxial test
A geotechnical engineering test where a cylindrical soil or rock sample is subjected to controlled stresses to measure strength and deformation.
地盤の強度を調べるために三軸試験を行った。
A triaxial test was conducted to investigate the strength of the ground.
Compound of 三 (three) + 軸 (axis) + 試験 (test), referring to the three principal stress directions applied in the test.