SOIL IMPROVEMENT METHODS

AIM

This course aims to introduce and teach the graduate student the basic principles of ground improvement methods, the selection and application of ground improvement methods for different soil types.

CONTENT

This course contains; Basic concepts of soils / Compaction theory / Soil stabilization with additives,Compaction theory / Soil stabilization with additives (using lime, lime-fly ash, cement, asphalt and chemicals),Soil stabilization with lime and fly ash,Soil stabilization with cement and asphalt, Introduction to in situ improvement of the properties of soil layers,On-site improvement of the properties of soil layers, soil improvement with dynamic compaction and vibroflatation methods,Vibroflotation, Vibrodisplacement and Vibro-replacement methods, ground improvement with stone columns, compression piles, ımpact-vibration effect application in the ground,In situ improvement of the properties of clay soil layers, preloading method, preloading with vertical drains and radial consolidation ,Consolidation with lime layers and lime columns, deep mixing methods, electrokinetic stabilization, thermal stabilization methods,Soil improvement with injection methods, rheology of injections, injection application methods, monitoring and control,Jet-Grout Method, Design with Geosynthetics, Uses and Applications of Geosynthetics,Road design with geosynthetics, increasing the bearing capacity of superficial foundations with geosynthetic reinforcements,Sustainable improvement methods,Sustainable improvement methods,Student Presentations.

1. 1

   At the end of this course, the student gains the ability to recognize problematic grounds.

   Taught by: Discussion Method, Case Study Method, Computer-Internet Supported Instruction, Lecture Method · Assessed by: Traditional Written Exam, Homework

2. 2

   Ability to identify ground conditions where ground improvement is required wins.

   Taught by: Discussion Method, Case Study Method, Computer-Internet Supported Instruction, Lecture Method · Assessed by: Traditional Written Exam, Homework

3. 3

   Ability to choose the appropriate ground improvement method for existing ground conditions wins.

   Taught by: Discussion Method, Case Study Method, Computer-Internet Supported Instruction, Lecture Method · Assessed by: Traditional Written Exam, Homework

WEEKLY PLAN

1. WEEK 1

   Basic concepts of soils / Compaction theory / Soil stabilization with additives

   Preparation: Previewing book and lecture notes

2. WEEK 2

   Compaction theory / Soil stabilization with additives (using lime, lime-fly ash, cement, asphalt and chemicals)

   Preparation: Previewing book and lecture notes

3. WEEK 3

   Soil stabilization with lime and fly ash

   Preparation: Previewing book and lecture notes

4. WEEK 4

   Soil stabilization with cement and asphalt, Introduction to in situ improvement of the properties of soil layers

   Preparation: Previewing book and lecture notes

5. WEEK 5

   On-site improvement of the properties of soil layers, soil improvement with dynamic compaction and vibroflatation methods

   Preparation: Previewing book and lecture notes

6. WEEK 6

   Vibroflotation, Vibrodisplacement and Vibro-replacement methods, ground improvement with stone columns, compression piles, ımpact-vibration effect application in the ground

   Preparation: Previewing book and lecture notes

7. WEEK 7

   In situ improvement of the properties of clay soil layers, preloading method, preloading with vertical drains and radial consolidation

   Preparation: Previewing book and lecture notes

8. WEEK 8

   Consolidation with lime layers and lime columns, deep mixing methods, electrokinetic stabilization, thermal stabilization methods

   Preparation: Previewing book and lecture notes

9. WEEK 9

   Soil improvement with injection methods, rheology of injections, injection application methods, monitoring and control

   Preparation: Previewing book and lecture notes

10. WEEK 10

    Jet-Grout Method, Design with Geosynthetics, Uses and Applications of Geosynthetics

    Preparation: Previewing book and lecture notes

11. WEEK 11

    Road design with geosynthetics, increasing the bearing capacity of superficial foundations with geosynthetic reinforcements

    Preparation: Previewing book and lecture notes

12. WEEK 12

    Sustainable improvement methods

    Preparation: Previewing book and lecture notes

13. WEEK 13

    Sustainable improvement methods

    Preparation: Previewing book and lecture notes

14. WEEK 14

    Student Presentations

    Preparation: Previewing book and lecture notes

ASSESSMENT

• Rate of Midterm Exam to Success50%
• Rate of Final Exam to Success50%

WORKLOAD

READING

• Engineering Principles of Ground Modification, Mc Graw Hill (Author: Manfred R. Hausmann) Current articles published in ASCE, Geotechnique and Ground Improvement journals.

TEACHING STAFF

• Assist.Prof. Burcu DIŞKAYACOORDINATOR
• Assist.Prof. Adlen ALTUNBAŞ