The plate load test (IS 1888) on soil gives the value of:
Choose the correct answer
Unconfined compressive strength
Ultimate bearing capacity of soil at test level AND the modulus of subgrade reaction k = p/s (pressure/settlement)
Triaxial shear strength parameters
Only settlement of a 1 m x 1 m footing
Correct Answer
B. Ultimate bearing capacity of soil at test level AND the modulus of subgrade reaction k = p/s (pressure/settlement)
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Plate load test: 300 mm to 750 mm square or circular steel plate loaded in increments; load-settlement curve plotted. Gives: (1) ultimate bearing capacity (at plunging failure or at 25 mm settlement); (2) modulus of subgrade reaction k = p/s (kN/m3). Settlement scales as: s_foundation = s_plate x (B_f / B_p) for cohesionless soils.
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