Experimental Study on the Effect of Freezing and Thawing on the Shear Strength of the Frozen Soil in Qinghai-Tibet Railway Embankment

Figure 11

Relationship curve between internal friction angle φ and dry density of sample group under freeze-thaw action. (a) Initial moisture content 12%. (b) Initial moisture content 15%. (c) Initial moisture content 18%. (d) Initial moisture content 20%.

(a)

(b)

(c)

(d)