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in Geotechnical Engineering II by (93.7k points)
Frictional resistance developed during the sinking the well depends on __________

(a) Roughness of the surface of contact

(b) Diameter of the well

(c) Type of soil

(d) Lateral earth pressure

The question was asked in an online quiz.

Asked question is from Well Curb, Cutting Edge, Steining and Bottom Plug topic in chapter Well Foundations of Geotechnical Engineering II

1 Answer

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by (243k points)
The correct answer is (a) Roughness of the surface of contact

Easiest explanation: Frictional resistance depends on the roughness of the surface of contact. For example, a smoothly plastered well steining surface is said to reduce frictional resistance.

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