The rock hydraulic direct shear instrument is a new type of testing instrument for rock mechanics properties developed and produced by our company. The instrument horizontally shear a group of rock specimens of the same type under different normal loads, and determines the shear strength parameters of the rock based on the expression of Coulomb's law. Suitable for direct shear tests on rock structural surfaces (such as joint surfaces, bedding surfaces, foliation surfaces, splitting surfaces, etc.), the rock itself, and the bonding surfaces between concrete or mortar and rock.

This instrument is suitable for conducting shear strength tests on rocks and non-metallic materials with regular shapes such as cylindrical and square shapes.