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2. Shear strength (soil) - Wikipedia

   en.wikipedia.org/wiki/Shear_strength_(soil)

   Typical stress strain curve for a drained dilatant soil. Shear strength is a term used in soil mechanics to describe the magnitude of the shear stress that a soil can sustain. . The shear resistance of soil is a result of friction and interlocking of particles, and possibly cementation or bonding of particle contac

3. Cohesion (geology) - Wikipedia

   en.wikipedia.org/wiki/Cohesion_(geology)

   Cohesion is the component of shear strength of a rock or soil that is independent of interparticle friction. In soils, true cohesion is caused by following: Electrostatic forces in stiff overconsolidated clays (which may be lost through weathering) Cementing by Fe 2 O 3, Ca CO 3, Na Cl, etc. There can also be apparent cohesion. This is caused by:

4. Soil mechanics - Wikipedia

   en.wikipedia.org/wiki/Soil_mechanics

   The angle of internal friction is thus closely related to the maximum stable slope angle, often called the angle of repose. But in addition to friction, soil derives significant shear resistance from interlocking of grains. If the grains are densely packed, the grains tend to spread apart from each other as they are subject to shear strain.

5. Rankine theory - Wikipedia

   en.wikipedia.org/wiki/Rankine_theory

   This theory, which considers the soil to be in a state of plastic equilibrium, makes the assumptions that the soil is homogeneous, isotropic and has internal friction. The pressure exerted by soil against the wall is referred to as active pressure. The resistance offered by the soil to an object pushing against it is referred to as "passive ...

6. Tilt test (geotechnical engineering) - Wikipedia

   en.wikipedia.org/wiki/Tilt_test_(Geotechnical...

   The tilt-angle equals the material friction of the discontinuity wall plus the roughness i-angle (tilt-angle = φ wall material + i) if no real cohesion is present (i.e. no cementing or gluing material between the two blocks), no infill material is present, the asperities do not break, and the walls of the discontinuity are completely fitting at the start of the test, while if the walls of the ...

7. Critical state soil mechanics - Wikipedia

   en.wikipedia.org/wiki/Critical_state_soil_mechanics

   The name cam clay asserts that the plastic volume change typical of clay soil behaviour is due to mechanical stability of an aggregate of small, rough, frictional, interlocking hard particles. [3] The Original Cam-Clay model is based on the assumption that the soil is isotropic, elasto-plastic, deforms as a continuum, and it is not affected by ...

8. Dilatancy (granular material) - Wikipedia

   en.wikipedia.org/wiki/Dilatancy_(granular_material)

   The relationship between dilation and internal friction is typically illustrated by the sawtooth model of dilatancy where the angle of dilation is analogous to the angle made by the teeth to the horizontal. Such a model can be used to infer that the observed friction angle is equal to the dilation angle plus the friction angle for zero dilation.

9. Physical properties of soil - Wikipedia

   en.wikipedia.org/wiki/Physical_properties_of_soil

   Soil particle density is typically 2.60 to 2.75 grams per cm 3 and is usually unchanging for a given soil. [44] Soil particle density is lower for soils with high organic matter content, [45] and is higher for soils with high iron-oxides content. [46]