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The modulus of subgrade reaction is applicable only when the load is applied through _________

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in Geotechnical Engineering II by (93.8k points)
The modulus of subgrade reaction is applicable only when the load is applied through _________

(a) Plate of size 30 ×30 cm and Beam 30 cm wide on soil area

(b) Plate size is 10 × 10 cm

(c) None of the mentioned

(d) All of the mentioned

The question was posed to me in semester exam.

This interesting question is from IS Code of Practice for Design of Raft Foundations in chapter Shallow Foundations of Geotechnical Engineering II

1 Answer

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by (243k points)
The correct answer is (a) Plate of size 30 ×30 cm and Beam 30 cm wide on soil area

The explanation: The modulus of subgrade reaction (Ks) is applicable to the case of load through a plate of size 30 × 30 cm or beam 30 cm wide on soil area.

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