KTU B.Tech s5 lecture notes – GEOTECHNICAL ENGINEERING – II
KTU B.Tech S5 Lecture Note – GEOTECHNICAL ENGINEERING – II
Bearing capacity of shallow foundations – Ultimate, safe and allowable bearing capacity. – Failure mechanism, assumptions and equation of Terzaghi’s bearing capacity theory for strip footing[no derivation required] – Terzaghi’s formulae for circular and square footings numerical problemsLocal and general shear failure – Factors affecting bearing capacity – Influence of water table – numerical problems
Raft foundations (Design Concepts only) – Allowable Bearing capacity of Rafts on sands and clays – Floating foundation.
Pile foundations – Point bearing and friction piles – Bearing capacity of single pile in clay and sand[I.S. Static formulae] – numerical problems, Dynamic formulae(Modified Hiley formulae only) – I.S. Pile load test [conventional]- Negative skin friction – numerical problems, Group action – Group efficiency – Capacity of Pile Groups- numerical problems
Brief introduction to Machine foundation –Mass spring model for undamped free vibrations – Natural frequency – Coefficient of uniform elastic compression – Methods of vibration isolation