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Max. Marks: 100

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00000CE363121902

Pages: 2

Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Fifth semester B.Tech degree examinations (S) September 2020

Course Code: CE363
Course Name: GEOTECHNICAL INVESTIGATION

PARTA
Answer any two full questions, each carries 15 marks.
What are the procedures to be carried out for preliminary and detailed ground

investigation?
What are the criteria for fixing the number and spacing of boreholes?
Differentiate between rotary drilling and auger boring.
Explain the steps involved in reconnaissance for soil investigation programme
of a multi storeyed building.
In a plate load test conducted on a cohensionless soil, a 550 mm square test
plate settles by 10 mm under a load intensity of 0.2 N/mm2. All conditions
remaining the same, what will be the settlement of 1 m square footing?
List the disadvantages of plate load test.
Sketch the figure for a plate load test under reaction truss loading with all
detailing.
PART ‏تا‎

Answer any two full questions, each carries 15 marks.

What are the precautions to be taken while conducting SPT test?

How does overburden pressure and dilatancy affect the measured Standard
penetration number or N value?

Explain dynamic cone penetration test with a neat diagram.

List the advantages and disadvantages of pressure meter test.

With neat diagrams, explain electrical sounding and electrical profiling
methods.

How is the thickness of subsurface layers computed using seismic refraction

method?

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Duration: 3 Hours

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