The Delft Sand, Clay & Rock Cutting Model, 2019a

The Delft Sand, Clay & Rock Cutting Model.
16.4. Chapter 4: Which Cutting Mechanism for Which Kind of Soil.
16.4.1. MC: Dry Sand Cutting.
Which of the following soil mechanical parameters play a dominant role in the cutting of dry sand?
The bold green answers are true.
1. The density of the sand.
2. The angle of internal friction.
3. The permeability of the sand.
4. The tensile strength of the sand.
5. The porosity of the sand.
6. The adhesion of the sand.
7. The angle of external friction of the sand.
8. The shear strength of the sand.
16.4.2. MC: Water Saturated Sand Cutting.
Which of the following soil mechanical parameters play a dominant role in the cutting of saturated sand?
The bold green answers are true.
1. The density of water.
2. The angle of internal friction.
3. The permeability of the sand.
4. The tensile strength of the sand.
5. The porosity of the sand.
6. The adhesion of the sand.
7. The angle of external friction of the sand.
8. The shear strength of the sand.
16.4.3. MC: Clay Cutting.
Which soil mechanical parameters dominate the cutting forces in clay?
The bold green answers are true.
1. The gravitational constant.
2. The density of the cutting blade.
3. The internal shear strength or cohesion of the clay.
4. The density of the clay.
5. The permeability of the clay.
6. The external shear strength or adhesion of the clay.
7. The porosity of the clay.
8. The angle of internal friction of the clay.
16.4.4. MC: Atmospheric Rock Cutting.
Which material properties play a dominant role in the atmospheric cutting of rock/stone?
The bold green answers are true.
1. The external friction coefficient of the rock.
2. The external shear strength or adhesion of the rock.
3. The external friction angle of the rock.
4. The density of the rock.
5. The permeability of the rock.
6. The tensile strength of the rock.
7. The shear strength or cohesion of the rock.
8. The internal friction angle of the rock.
Page 406 of 454 TOC Copyright © Dr.ir. S.A. Miedema