The Tensile Strength of Loess in Northwest China by Unconfined Penetration Test and the Distinct Element Simulation

Figure 1

The sampling process. (a) The excavation face of Xujiachuan tunnel. (b) Horizontal direction samples and vertical direction samples were cut out in situ. (c) Samples were cut into a cylindrical shape in the site. (d) Samples were wrapped in plastic wrap to ensure that the water content is not lost and then send back to the lab.

(a)

(b)

(c)

(d)