A group of nine piles in a 3 x 3 square pattern is embedded in a soil strata comprising dense sand underlying recently filled clay layer, as shown in the figure. The perimeter of an individual pile is 126 cm. The size of pile group is 240 cm x 240 cm. The recently filled clay has undrained shear strength of 15 kPa and unit weight of 16 kN/m³. The negative frictional load (in kN, up to two decimal places) acting on the pile group is _________

GATE 2018 Civil Engineering Q45 — Civil Engineering

GATE 2018Set CombinedQ45NATanswer keyexplanation soonhard

Civil Engineering · Geotechnical Engineering - Pile Foundations

Concept intelligence

Jump into a concept drill from this question.

Figure from the original GATE 2018 paper. (IIT Guwahati archive)

Your answer

Studying seriously for GATE CSE?

Keep browsing free. Pro unlocks the paid study loop: explanations, topic mastery, mistake notebook, and custom PYQ drills.

Recurring concept

Geotechnical Engineering - Pile Foundations has appeared in GATE Civil Engineering 13 times across 7 years (2022, 2023, 2024, 2025, 2026, ...).

More questions on Geotechnical Engineering - Pile Foundations

📊 has diagram∑ has math

pile foundationnegative skin frictionclayshear strength