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SYLLABUS

 UNIT-I

In situ densification methods – In situ densification of granular soils – Vibration at ground surface and at depth, impact at ground and at depth – In situ densification of cohesive soils – Pre-loading – Vertical drains – Sand drains and geo drains – Stone columns.

UNIT-II

Dewatering – Sumps and interceptor ditches – Single and multi stage well points – Vacuum well points – Horizontal wells – Criteria for choice of filler material around drains – Electro osmosis.

UNIT-III

Stabilization of soils – Methods of soil stabilization – Mechanical – Cement – Lime – Bitumen and polymer stabilization – Use of industrial wastes like fly ash and granulated blast furnance slag.

UNIT-IV

Reinforce earth – Principles – Components of reinforced earth – Design principles of reinforced earth walls – Stability checks – Soil nailing.

UNIT-V

Geosynthetics – Geotextiles – Types – Functions, properties and applications – Geogrids, geomembrances and gabions – Properties and application. UNIT-VI Grouting – Objectives of grouting – Grouts and their applications – Methods of grouting – Stage of grouting – Hydraulic fracturing in soils and rocks – Post grout test.