Ground Improvements Techniques Handwritten Premium Lecture Notes. Specially for Civil Engineering Candidates. Syllabus Covered based on Anna University Seventh Semester.
GROUND IMPROVEMENT TECHNIQUES
UNIT-1 (Pages: 24)
Ground improvement
UNIT-2 (Pages: 30)
Drainage and dewatering
UNIT-3 (Pages: 22)
Insitu treatment
UNIT-4 (Pages: 17)
EARTH REINFORCEMENT
UNIT-5 (Pages: 37)
GROUTING
Attachment: click here
UNIT-1
Ground improvement
Role of ground improvement in foundation engg
Methods of ground improvements
Inclusion of reinforcement
Mixing additive
Application for excauation and replacing
Deep mixing
UNIT-2
Drainage and dewatering
Ground water level
The major control methods
Methods of dewatering system
Well point system
Multistage well point operation
Well point system
Vaccum dewatering system
Dewatering by electro osmosis
Electro osmotic flow
Electrodes
UNIT-3
Insitu treatment
Impact compaction of sands
Vibrating compaction in sands
Vibro compaction
Explosion in sand
The major variables involve in the process bar
Merits of dynamic compaction
Vibroflatation
UNIT-4
EARTH REINFORCEMENT
Concept of reinforcement
Wall facing elements
Reinforcing element
Other application of soil reinforcement
Compacted earth fill
Geo textiles
Common of geosynthetics
Geo grinds
Hydraulic function
Advantages of geotextile
Fluid transmission function
Pavement with or without geotextile
Geo textile function as filter and separator
Use of geo textile in road works
Drainage function of geotextile in roadwork
UNIT-5
GROUTING
Application
Function of grounting
Permeation or penetration
Compaction or controlled displacements
Uncontrolled displacement
Types of grouts
1. Suspension grouts
2. Solution grouts
Grouting with soil
Grouting with cement mixes
Grouting with asphalt emulsions
Solution grouts
Advantages of chemical grouts
Classification of solution grouts
Acrylamides
Phenoplast resins
Silicats derivatives
Injection methods
Grouting from the bottom
Grouting plants and equipment’s
Precaution while mixing grouts
Injection methods
Circuit grouting
Tube – a – manchette grouting
Point grouting
Jet grouting
Pressure injected lime
Electro kinetic injection
Grount injection measurement and monitoring
Soil stabilization
1. Cement stabilization
2. Nature of soil
Mixing
Amount of cement
Moisture content
Compaction condition
Age and curing
Admixture for soil – cement
Construction of soil cement
Stabilization using lime
Basic types of lime
Construction procedure
Attachment: click here
