1. EAG346 Geotechnical Design Sem II, 2014/2015 Lesson 1

2. Instructors Dr M R Selamat (Course Coordinator) Dr Harris Ramli
Dr Ashraf Ismail
Dr Mastura Azmi

3. Course Outcomes  
(Relate Geotechnical Engineering theories and principles to design solutions) Menghubung antara teori dan prinsip Kejuruteraan Geoteknik dengan hasil rekabentuk   (Analyze components of Geotechnical Engineering Design problems and carry out the necessary designs) Menganalisa komponen masaalah Rekabentuk Kejuruteraan Geoteknik dan menjalankan rekabentuk Geoteknik   (Justify Geotechnical Engineering Design solutions through reports and presentations) Mempertahan hasil Rekabentuk Kejuruteraan Geoteknik melalui laporan dan pembentangan
Note: The Geotechnical Engineering Design problems said above cover Slope, Retaining Wall, Shallow Foundation, Deep Foundation, Fill, and Mitigation against Erosion and Sedimentation

4. Assessment Component Marks Note Quiz/test/ (Ujian) 30% 20%
Individual assessment
Individual/Group assessment
2. Assignments – towards completing the mini project (Tugasan)
3. Mini project with a final report and final presentation (VIVA)
(Projek)
50%
Report: Group assessment
Final Presentation (VIVA): Individual assessment
Attendance
Final mark will be deducted by absence

5. Problem
You will be given a cross sectional profile where a slope will be cut, a retaining wall will be erected on a position on the slope, and a fill will be laid at the adjoining ground.
The Site Investigation (SI) data for points along the cross sectional profile will be provided.
You will design the:
1. Slope
2. Retaining Wall
3. Foundation for Retaining Wall
4. Fill – Uniformly distributed fill covering large area
5. Erosion and sedimentation control measures

6. DESIGN:
Slope
Retaining Wall
Foundation
Fill
Erosion and Sedimentation Control

7. Lecture by Dr Gue See Siew – Foundation on Soft Ground
NOTICE:
Lecture by Dr Gue See Siew – Foundation on Soft Ground
4 Mac, 2015, 2.30 pm
AUDITORIUM/DK4 PPKA

8. example from a previous year - a conceptual cross sectional profile of project site
Soil
Bed Rock
Clay
Sand
Bed Rock

9. Example from past years - a slope was cut, a retaining wall constructed, and a fill laid
Berm
Batter Face
Soil
Platform 1
Retaining Wall
Platform 2
Fill
Bed Rock
Clay
Sand
Bed Rock

10. Slope Terms Batter face Berm Berm Drain Crest Toe Batter Face Crest

11. Slope Analyses Factor of safety against local failure
Factor of Safety against global failure

12. Global Failure
Local Failure

13. Cut Slope vs. Fill Slope
Fill slope normally is stronger Why?

14. Retaining Wall Terms Backfill Base Heel Stem Toe Stem Backfill Heel

15. Retaining Wall Analyses
Stability against sliding
Stability against toppling
Stability against bearing failure
Shallow foundation
Deep foundation (piles)
Stability against settlement

16. Fill (or Embankment) Fill Fill Slope Geotextile Sand Cushion Fill

17. Fill Analyses Total settlement Time rate settlement Remedial measures
Fill (Embankment) Slope
Factor of safety against local failure
Factor of safety against global failure

18. Fill vs Embankment Fill cover large area
Embankment cover small area or a strip such as for highway or bund
Stress increase under a fill is constant with depth, why?
Stress increase under an embankment changes with depth and lateral position, why?

20. q = Dq

21. DESIGN:
Slope
Retaining Wall
Foundation
Fill
Erosion and Sedimentation Control

22. Now remember course outcomes?
Menghubung antara teori dan prinsip Kejuruteraan Geoteknik dengan hasil rekabentuk (Relate Geotechnical Engineering theories and principles to design solutions)   Menganalisa komponen masaalah Rekabentuk Kejuruteraan Geoteknik dan menjalankan rekabentuk berkaitan (Analyze components of Geotechnical Engineering Design problems and carry out the necessary designs)   Mempertahan hasil Rekabentuk Kejuruteraan Geoteknik melalui laporan dan pembentangan (Justify Geotechnical Engineering Design solutions through reports and presentations)
Note: The Geotechnical Engineering Design problems said above cover Site Investigation, Retaining Wall, Slope, Shallow Foundation, and Deep Foundation

23. Grouping of Students Marks will be counted from
Tests/Quiz/Attendance
Assignments
Mini Project + Final Presentation (VIVA)
For Mini Project + Final Presentation (VIVA)
Each group will consist of 5 students
Each student in every group will get involve in all work
Each student will receive personal grade