This document discusses various soil improvement techniques including lime stabilization, bitumen stabilization, preloading, wick drains, dynamic compaction, deep compaction methods like vibrocompaction and compaction piles, grouting methods, soil freezing, and the use of geotextiles. It provides guidelines for the amount of lime required for stabilization based on soil type. Deep compaction depth depends on factors like tamper weight and impact spacing. Permeation grouting and intrusion grouting are also covered. The document serves as a reference for selecting appropriate soil improvement methods based on soil conditions and project needs.

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SLAKED LIME.
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19. • THE FOLLOWING AMOUNT MAY BE USED AS A ROUGH GUIDE:
• 2 TO 5% FOR CLAY GRAVEL MATERIAL HAVING LESS THAN 50% OF SILT-CLAY
FRACTION
• 5 TO 10% FOR SOILS WITH MORE THAN 50% OF SILT CLAY FRACTION
• ABOUT 10% FOR HEAVY CLAYS USED AS BASES AND SUB-BASES
• FOR SOILS HAVING PARTICLE SIZE INTERMEDIATE BETWEEN (1) AND (2) ABOVE, THE
QUANTITY OF LIME REQUIRED IS BETWEEN 3 TO 7%.
• LIME STABILIZATION IS NOT EFFECTIVE FOR SANDY SOILS.
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 BITUMEN EMULSION
 CUT BACK BITUMEN
 ASPHALTIC BITUMEN
STABILIZATION

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25. COHESIVE SOIL COHESIONLESS
SOIL
PRELOADING VIBROFLOTATION
SAND DRAINS DYNAMIC COMPACTION
WICK DRAINS COMPACTION BY
BLASTS

26. 2.1 DEEP COMPACTION
2.2 SOIL REPLACEMENT
2.3 PRE LOADING
2.4 DRAINAGE AND GWT CONTROLL
2.5 GROUTING
2.6 USE OF GEOTEXTILES

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• SOIL IMPROVEMENT DEPTH DEPENDS ON; TAMPER WEIGHT AND ITS HEIGHT OF FALL, SURFACE AREA
AND ITS SHAPE, IMPACT SPACING AND GRID PATTERN.
• GROUND IMPROVEMENT BY VIBROCOMPACTION, DEEP MIXING, COMPACTION BY BLAST AND
COMPACTION PILES ARE ALSO COMES UNDER DEEP COMPACTION

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33. • PERMEATION AND
INSTRUSION GROUTING

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2.6 SOIL FREEZING

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2.7 USE OF GEOTEXTILE

40. CONCLUSION
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