Question

The observed value of n in static cone penetration test is corrected by

Answer 1

The N-value for cohesion less soil shall be corrected for overburden and the values N0 obtained after overburden correction is corrected further for dilatancy..

Answer 2

The observed value of n in static cone penetration test is corrected by Overburden and Dilatancy /submergence.

Static cone penetration test

• A cone penetrometer is pushed vertically into the ground at a steady pace of 2 cm/sec in the static penetration test (Cone Penetration Test).
• The point resistance (qc) and friction (fs) on a sleeve positioned above the tip are measured separately during the penetration.

Overburden correction

• The overburden pressure determines the soil's penetration resistance.

• When compared to the behavior of the same soil at shallow depth, in-situ soil at deeper depth will have more overburden pressure and hence will respond better to the SPT test.

Dilatancy /submergence correction

• When 'N' obtained after overburden adjustment reaches 15 in saturated fine sands and silts, dilatancy correction is used.

To know more about in-situ undrained shear strength, here

https://brainly.in/question/33313?msp_poc_exp=2

#SPJ2