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AFE4801 Assessment 1 Answers Year 2026

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Advanced Foundation Engineering

Assessment 1 Answers

Year 2026
DUE DATE
06 MAY 2026




0027 68 628 1800

,
,
,
,
,
,
, QUESTION 1

Shallow Foundations – Bearing Capacity

𝐹𝑜𝑜𝑡𝑖𝑛𝑔 𝑑𝑖𝑚𝑒𝑛𝑠𝑖𝑜𝑛𝑠: 𝐵 = 2.0𝑚 , 𝐿 = 1.5𝑚

𝐷𝑒𝑝𝑡ℎ 𝑜𝑓 𝑓𝑜𝑜𝑡𝑖𝑛𝑔: 𝐷𝑓 = 1.2𝑚

𝐿𝑜𝑎𝑑, 𝑃 = 900 𝑘𝑁

𝑆𝑜𝑖𝑙 𝑝𝑟𝑜𝑝𝑒𝑟𝑡𝑖𝑒𝑠: 𝛾 = 18.5 𝑘𝑁/𝑚3

𝛾𝑠𝑎𝑡 = 20.0 𝑘𝑁/𝑚3

𝜙 = 320

𝑐=0

𝐺𝑟𝑜𝑢𝑛𝑑𝑤𝑎𝑡𝑒𝑟 𝑡𝑎𝑏𝑙𝑒 𝑖𝑠 0.8𝑚 𝑏𝑒𝑙𝑜𝑤 𝑡ℎ𝑒 𝑔𝑟𝑜𝑢𝑛𝑑 𝑠𝑢𝑟𝑓𝑎𝑐𝑒

1.1. The ultimate bearing capacity is given by:

𝑞𝑢 = 𝑐𝑁𝑐 𝑠𝑐 + 𝑞𝑁𝑞 𝑠𝑞 + 0.5𝛾𝐵𝑁𝛾 𝑠𝛾

𝑐=0

𝑞𝑢 = 𝑞𝑁𝑞 𝑠𝑞 + 0.5𝛾′𝐵𝑁𝛾 𝑠𝛾

Braja M Das bearing capacity table:




𝐹𝑜𝑟 𝜙 = 320 , 𝑁𝑞 = 23.18 , 𝑁𝛾 = 30.22

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