Figure 4
From: Shear strength deterioration effect of rock mass joint surface under cyclic shear load
Portable rock mechanical property multifunctional test device (Chengdu University of Technology, 200452). (1) Bottom frame baffle; (2) Lower shear box; (3) Upper shear box; (4) Horizontal jack loading; (5) Vertical frame baffle; (6) Force transmission device; (7) Vertical jack loading; (8) Top frame baffle; (9) Skateboards; (10) Ball bearings; (11) Magnetic stand; (12) Dial gauge.
