1. Demetrious C. Koutsoftas URS Corporation
Some Practical Considerations in the Design of Deep Soil-Cement Mixing Applications
Demetrious C. Koutsoftas
URS Corporation

2. Major Applications 1. Excavations and Shoring
2. Ground Improvement/Lateral Spreading Barriers
3. Deep Foundations
4. Cut-off Walls

3. Foundation Design Applications
1. Soil-Cement Piles
Mobilization of Skin Friction
Lateral Stresses/Deformations
Grout Permeation
2. Soil-Cement Cylindrical Shafts
Reinforcement
Lateral Support

4. Cypress Freeway Project Depressed Roadway - 7th Street Realignment

5. Soil Cement Uplift Pile

6. Results of Uplift Load Tests on Soil-Cement Piles

7. Soil-Cement Cylinder Piles

8. View of Excavated
Soil-Cement Shaft
Exposed Soldier Piles at the Top
of the Soil-Cement Cylinder Pile

9. Lateral Support of Hand Excavated Caissons

10. Excavations and Shoring
1. Spacing of Soldier Piles and Behavior of Soil-Cement Between the Piles
2. Special Applications with Jet-Grout Base Struts
Base Stability
Deformations
Anchorage
Wall Embedment

11. Typical Arrangement of Soldier Piles for Shoring Wall Construction

12. Excavation for EBMUD Storage Basin

13. Typical Example of Soil-Cement Walls: Exposed Columns After Excavation

14. Arrangement of Soil-Cement Columns for Increased Soldier Pile Spacing

15. View of Completed Excavation with Soldier Piles Spaced 6 Feet Apart

16. Islais Creek Area and Excavation Projects

17. Comparison of Conventional “Stiff” System with New Shoring Concept

18. Base Stability Considerations Use of Jet Grout Slab Anchored with Piles

19. Results of Pull-out Tests for Bond Resistance Determination: Zero, Four, and Six Rows of Shear Keys

20. (b) Inclinometer No. N-76; Overflow Structure
(a) Inclinometer No. E-155; Indiana Street Segment
(b) Inclinometer No. N-76; Overflow Structure
Lateral Deformations Caused by Jet Grouting

21. Lateral Deformations Caused by Jet Grouting: Inclinometer No
Lateral Deformations Caused by Jet Grouting: Inclinometer No. S-93; Overflow Structure

22. Islais Creek Contract E Tunnel Access Shaft Design

23. (a) Inclinometer No. E-87; Indiana Street Segment
(b) Inclinometer No. N-120; Overflow Structure
Lateral Deformations Caused by Jet Grouting

24. View of Completed Excavation