An Experimental Study on the Water-Induced Strength Reduction in Zigong Argillaceous Siltstone with Different Degree of Weathering

Figure 2

Site photos of the Zigong argillaceous siltstone: (a) completely weathered at the shallow surface (a type of silty clay); (b) borehole core samples of the highly weathered argillaceous siltstone and (c) borehole core samples of the moderately weathered argillaceous siltstone.

(a)

(b)

(c)