Experimental study on deformation and strength property of compacted loess

A series of experimental studies are conducted on the deformation and shear strength property of compacted loess. The results reveal that the relationships of both the initial moisture content (<i>w</i>) and the initial degree of compaction (<i>K</i>) of compacted loess with cohesion (<i>w</i>) and the angle of internal friction (<i>&#966;</i>) are linear. The relationship between the secant modulus (<i>E_soi</i>) and <i>K</i> is also linear. The relationship between <i>E_soi</i> and <i>w</i> can be fitted well by a second-order polynomial. Further, when the influences of <i>w</i> and <i>K</i> are ignored, the relationship between the confined compression strain (<i>&#949;</i>) and vertical pressure (<i>p</i>) can be expressed by a formula. A correction formula for the deformation of compacted loess caused by a change in <i>w</i> and <i>K</i> is derived on the basis of the study results.