To measure a base line, a steel tape 30 m long, standardised at 15º C with a pull of 80 N was used. Find the correction per tape length, if the temperature at the time of measurement is 25º C and the pull exerted is 150 N. Take Young’s modulus E = 2 × 10^5 N/mm2 and coefficient of thermal expansion α = 11.2 × 10^6/°C. Cross-sectional area of tape is 8 mm2.

To measure a base line, a steel tape 30 m long, standardised at 15º C with a pull of 80 N was used. Find the correction per tape length, if the temperature at the time of measurement is 25º C and the pull exerted is 150 N. Take Young’s modulus E = 2 × 10^5 N/mm2 and coefficient of thermal expansion α = 11.2 × 10^6/°C. Cross-sectional area of tape is 8 mm2.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter7: Seepage

Section: Chapter Questions

Problem 7.1P

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