Deformation characteristics test and mechanism of arbor taproot soil complex in rainforests

Strengthening effect of root system on soil

Figure 7 shows the relationship curve between the shear stresses and shear displacements of plain soil and soil complex with three parallel roots under different normal stresses. Herein, the soil complex with three parallel roots was referred to as root soil.

As evident from Fig. 7, the shear stresses of plain and root soils both grew with the increase in their shear displacements, and both exhibited the characteristics of strain hardening type. This was because there was no…