Geotechnical Engineering

DHARM

810 GEOTECHNICAL ENGINEERING

22. Sankaran K.S. and Muthukrishnaiah. K: “Wells Subjected to Horizontal Forces—A model study”,
    Jl. IRC Paper No. 273, Vol. 32-1, pp. 51-83, 1969.


23. Sankaran K.S. and Muthukrishnaiah. K: “Stability of Caisson Foundations”, Proc. Second South-
    east Asian Conference on Soil Engineering, pp. 451-462, 1970.


24. Satish Varma: “Design of Wells against Horizontal Forces”, Jl. IRC, Paper No. 256, Vol. 29, No.
    4, pp. 627-647, 1966.


25. Sharda, S.C.: “Response of Well Foundations under Horizontal Loads”, Ph.D. Thesis, University
    of Roorkee, U.P., India, 1967.


26. Singh, A.: “Soil Engineering in Theory and Practice”, Asia Publishing House, Bombay, 1967.


27. Teng, W.C.: “Foundation Design”, Prentice Hall of India Pvt. Ltd., New Delhi, 1969.


28. Terzaghi, K.: “Failure of Bridge Piers due to Scour”, Proc. First International Conference on
    SMFE, Cambridge, Mass., USA., 1936.


29. Terzaghi, K.: “Theoretical Soil Mechanics”, John Wiley & Sons, Inc., NY, USA., 1943.


30. Terzaghi, K. & Peck, R.B.: “Soil Mechanics in Engineering Practice”, John Wiley & Sons, Inc.,
    NY, USA., 1967.


31. Timoshenko, S. & Goodier, J.N.: “Theory of Elasticity”, McGraw Hill Book Co., NY, USA, 1951.


32. Vesic, A.S.: “Ultimate Loads and Settlements of Deep Foundations in Sand”, Proc. of Symposium
    on ‘Bearing Capacity and Settlement of Foundations’, Duke Uny., Durham, North Carolina, USA.,
    1965.


33. Vijaya Singh: “Wells and Caissons” Nem Chand Brothers, Roorkee, U.P., India, 1970.

Questions and P roblems

19.1 What is a “Caisson”? How are Caissons classified based on the method of construction?
19.2 Explain an ‘Open Caisson’ with a neat sketch showing all the component parts.
19.3 How is the load-carrying capacity of an Open Caisson determined? What are the merits and
demerits of an Open Caisson?
19.4 Describe the component parts of a Pneumatic Caisson with a neat sketch.
19.5 What are the advantages and disadvantages of a Pneumatic Caisson when compared with other
types?
19.6 Under what circumstances is a Pneumatic Caisson preferred? What are the safety Precautions
to be followed in working with a Pneumatic Caisson?
19.7 What is “Caisson Disease”? What are the precautions necessary to prevent it?
19.8 What is a ‘Floating Caisson’? How is its stability checked?
19.9 What are the merits and demerits of a Floating Caisson when compared with other types?
19.10 What are the circumstances under which a well foundation is more suited than other types?
19.11 Sketch and describe the various components of a well foundation, indicating the function of
each.
19.12 Discuss the different shapes of Cross-sections of wells used in practice, giving the merits and
demerits of each.
19.13 Discuss the various kinds of forces likely to act on a well foundation.
19.14 What is ‘Grip Length’ of well? What are the considerations in the determination of the grip
length?