Course Details
Subject {L-T-P / C} : CE6100 : Ground Improvement Techniques { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Suresh Prasad Singh
Syllabus
Module 1 Introduction: (6 Hours)
Rock cycle, classification of rocks and rock-forming minerals. Weathering process and formation of soil. Engineering properties of the soft, week and compressible deposits, Natural on land, off-shore and Man-made deposits. Role of ground improvement in foundation engineering, methods of ground improvement, Selection of suitable ground improvement techniques.
Module 2 Mechanical modification: (6 Hours)
Principle of compaction, Laboratory compaction, Factors affecting compaction, Effect of compaction on various soil properties, Field compaction techniques, and field equipment.
Module 3 Chemical modification: (6 Hours)
Stabilization with lime, cement, and salts.
Module 4 In-situ treatments methods: (12 Hours)
In-situ densification soils, Dynamic compaction, and consolidation, Vibrofloation, Sand pile compaction, Preloading with sand drains and fabric drains Granular columns, Micro piles, Soil nailing, Ground Anchors, Lime piles, Grouting technique, Thermal, Electrical and Chemical methods, Electro osmosis, Soil freezing.
Module 5 Reinforced Soil: (10 Hours)
The mechanism, Reinforcement materials, Reinforcement - Soil Interactions, Geosynthetics, Analysis and Design of Reinforced Retaining Structures, Embankments, and Slopes. Ground Improvement Techniques for Geotechnical Earthquake Engineering, Case studies on ground improvement techniques.
Course Objectives
- Understanding the engineering behavior of various natural and man-made soil deposits
- Understanding the concept of various ground improvement techniques
- Selection of site specific method of improvement and its design
- Expousure to recent ground improvement techniques through various case studies
Course Outcomes
At the end of the course, the students will be able to: <br />1. Identify the problems associated with the existing ground condition. <br />2. Propose an appropriate ground improvement technique. <br />3. Design for the same.
Essential Reading
- N. V. Nayak, Foundation Design Manual, Dhanpat Rai and Sons, Delhi.
- G. V. Rao and G. V. S. Rao, Text Book On Engineering with Geotextiles, Tata McGraw Hill
Supplementary Reading
- B. M. Das, Principles of Foundation Engineering, Thomson, Indian Edition
- R. M. Korner, Design with Geosynthetics, Prentice Hall, New Jersy, 3rd Edn